What's the difference between hardening and iron?

Hardening


Definition:

  • (p. pr. & vb. n.) of Harden
  • (n.) Making hard or harder.
  • (n.) That which hardens, as a material used for converting the surface of iron into steel.

Example Sentences:

  • (1) Osmotically treated red cells, red cells partially hardened with increasing glutaraldehyde concentrations, and mixtures of normal and hardened red cells were used to test the method.
  • (2) "But if public opposition to further austerity measures hardens, the Greek government could find it even tougher to put the public finances back on a sustainable footing."
  • (3) It's not as if they were once tolerant and have hardened their hearts as they've grown older.
  • (4) Insertion of an adequate approximate amalgam filling and its finish after hardening is one of the basic preventive measures in marginal periodontopathies.
  • (5) Hardened skin was markedly altered physiologically.
  • (6) A comparison was made of the kinetics of the carboxylation reaction of bicarbonate-magnesium-activated ribulose biphosphate carboxylase-oxygenase purified from cold-hardened and unhardened winter rye (Secale cereale L. cv.
  • (7) Rarely has there been a potential presidential candidate so battle-hardened and ready for combat.
  • (8) With its huge corps of jihadists hardened by years of fighting in Kashmir, it is arguably too big to confront at a time when Pakistan is battling the TTP.
  • (9) However, several systematic errors of the method have to be considered, such as the influence of fat present in the spongiosa in varying concentrations as well as beam hardening effects and different calibration methods.
  • (10) It is the sort of malevolent onslaught that has caused many hardened media pundits to quake.
  • (11) Values of elongation were more than 10% even after hardening heat treatment.
  • (12) It’s not an entirely controversy-free choice, considering that Harden hasn’t been a starter for more than two seasons, doesn’t have the best track record as far as being a team player goes and at times has been bad enough on defense that you could make an entire YouTube playlist devoted entirely to clips of him failing to make any defensive effort whatsoever.
  • (13) Compared to conventional CT, the new system should significantly improve contrast resolution of the image and provide better image quantification because of its lack of beam-hardening effects and its efficient implementation of energy-selective imaging methods such as dual-photon absorptiometry and K-edge subtraction with high-atomic-number (high-Z) contrast-enhancement elements.
  • (14) An earlier debt sustainability analysis was leaked in the days leading up to the Greek referendum and helped harden opposition to the (less draconian) terms then on offer.
  • (15) He also signalled a change in policy on welfare, hardening Labour’s opposition to the government’s welfare reforms, by pledging to oppose the cap on the total amount of benefits that a person can receive.
  • (16) The effects of DMSO and cooling on fertilization are likely to be due to zona hardening by cortical granule release and to disorganization of the egg cytoskeleton and plasma membrane.
  • (17) When present during the egg activation process monodansylcadaverine (MDC-a fluorescent lysine analog) inhibits eggshell hardening and at the same time becomes covalently incorporated into the eggshell.
  • (18) In rigor control, crossbridges were most regular in muscles that were stabilized before freezing by prefixation in glutaraldehyde followed by 'hardening' with neutralized tannic acid, so all nucleotide treatments were terminated by such fixation.
  • (19) It main advantage lies in the screening of arterial diseases (very reproductable and sensitive), monitoring of the treatment (unrelated to the operator), study of hardened arteries (diabetes).
  • (20) Evidence from several sources indicate that the catalytic action of the peroxidase is responsible for hardening the FE through the phenolic coupling of tyrosyl residues of the FE proteins.

Iron


Definition:

  • (n.) The most common and most useful metallic element, being of almost universal occurrence, usually in the form of an oxide (as hematite, magnetite, etc.), or a hydrous oxide (as limonite, turgite, etc.). It is reduced on an enormous scale in three principal forms; viz., cast iron, steel, and wrought iron. Iron usually appears dark brown, from oxidation or impurity, but when pure, or on a fresh surface, is a gray or white metal. It is easily oxidized (rusted) by moisture, and is attacked by many corrosive agents. Symbol Fe (Latin Ferrum). Atomic weight 55.9. Specific gravity, pure iron, 7.86; cast iron, 7.1. In magnetic properties, it is superior to all other substances.
  • (n.) An instrument or utensil made of iron; -- chiefly in composition; as, a flatiron, a smoothing iron, etc.
  • (n.) Fetters; chains; handcuffs; manacles.
  • (n.) Strength; power; firmness; inflexibility; as, to rule with a rod of iron.
  • (n.) Of, or made of iron; consisting of iron; as, an iron bar, dust.
  • (n.) Resembling iron in color; as, iron blackness.
  • (n.) Like iron in hardness, strength, impenetrability, power of endurance, insensibility, etc.;
  • (n.) Rude; hard; harsh; severe.
  • (n.) Firm; robust; enduring; as, an iron constitution.
  • (n.) Inflexible; unrelenting; as, an iron will.
  • (n.) Not to be broken; holding or binding fast; tenacious.
  • (v. t.) To smooth with an instrument of iron; especially, to smooth, as cloth, with a heated flatiron; -- sometimes used with out.
  • (v. t.) To shackle with irons; to fetter or handcuff.
  • (v. t.) To furnish or arm with iron; as, to iron a wagon.

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) The most successful dyes were phenocyanin TC, gallein, fluorone black, alizarin cyanin BB and alizarin blue S. Celestin blue B with an iron mordant is quite successful if properly handled to prevent gelling of solutions.
  • (3) 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.
  • (4) The specific activities of extracts from cells grown under phototrophic and aerobic conditions were similar and not affected by the concentration of iron in the growth media.
  • (5) In the 153 women to whom iron supplements were given during pregnancy, the initial fall in haemoglobin concentration was less, was arrested by 28 weeks gestation and then rose to a level equivalent to the booking level.
  • (6) Typically the iron-iron axis (gz) of the binuclear iron-sulfur clusters is in the membrane plane.
  • (7) Increased iron levels in basal ganglia were generally associated with normal or elevated levels of ferritin immunoreactivity, for example, the substantia nigra in PSP and possibly MSA, and in putamen in MSA.
  • (8) Lead levels in contents and shells of eggs laid by hens dosed with all-lead shot were about twice those in eggs laid by hens dosed with lead-iron shot.
  • (9) Dietary factors affect intestinal P450s markedly--iron restriction rapidly decreased intestinal P450 to beneath detectable values; selenium deficiency acted similarly but was less effective; Brussels sprouts increased intestinal AHH activity 9.8-fold, ECOD activity 3.2-fold, and P450 1.9-fold; fried meat and dietary fat significantly increased intestinal EROD activity; a vitamin A-deficient diet increased, and a vitamin A-rich diet decreased intestinal P450 activities; and excess cholesterol in the diet increased intestinal P450 activity.
  • (10) Since iron from fortified formulas is well absorbed during the first three months of life, even if it is not immediately used for hemoglobin formation, an inccrease in the iron stores will occur...
  • (11) Dietary intakes, measured by three 24-hour recalls, revealed that protein, iron and Vitamin C generally met or exceeded the Nutrition Recommendations for age.
  • (12) This is a struggle for the survival of our nation.” As ever, after Trump’s media dressing-down, his operation was quick to fit a velvet glove to an iron fist.
  • (13) Ten weeks of iron therapy was not, however, long enough to increase iron stores.
  • (14) With both approaches, carbohydrate and fat had little influence whereas egg albumin had a significant inhibitory effect on the absorption of nonheme iron.
  • (15) The protein quality and iron bioavailability of mechanically deboned turkey meat (MDT) and hand-deboned turkey meat (HDT) were determined in rats.
  • (16) Serum levels of vitamins A and E, zinc and iron were determined in healthy control subjects and lepromatous leprosy patients belonging to an eastern state of India.
  • (17) Ferric iron in aqueous solution was used as an iron-only control.
  • (18) The implications of inhibition of protein kinase C by adriamycin-iron(III) are discussed.
  • (19) The duodenal mucosa of genotypically normal iron replete and iron deficient mice and mice with sex-linked (sla) and microcytic anemias (mk) was examined for the presence of iron-binding proteins.
  • (20) Ferredoxin reductase (Fd-reductase) supplies reducing equivalents obtained from NADPH to mitochondrial cytochrome P450 enzymes via the small iron-sulfur protein ferredoxin.

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