(n.) The action or effect of corrosive agents, or the process of corrosive change; as, the rusting of iron is a variety of corrosion.
Example Sentences:
(1) The influence of mucin on the corrosion behaviour of seven typical dental casting alloys was investigated.
(2) Pitting corrosion was seen on low-resistant Ni-Cr alloys, which had less Cr content.
(3) It would appear that there was airborne spread of the organism from these cooling water systems which had not received conventional treatment to inhibit corrosion and organic growth.
(4) Following the injection of suitable media, the arterial tree of 22 post-mortem human stomachs was studied by angiography, or corrosion and micro-dissection.
(5) It was determined that the Ag-rich phase of Ag-Pd-Cu-Au alloy was preferentially attacked to form Ag2S corrosion product.
(6) Crevice corrosion propagation for gamma 2-free vs. gamma 2-containing amalgams was characterized by lower acceleration and maximum rates during the most dynamic period.
(7) The traditional alloys used as metal bases for fixed partial dentures are accompanied by various problems such as corrosion, allergy, toxicity, casting, and preparation for both patient and prosthodontist and in magnetic resonance imaging for diagnosis.
(8) Similarly, significant correlations were found between the individual tissue reaction scores and crevice corrosion scores from the 201 individual sites, again for all devices and for the asymptomatic and symptomatic removal groups.
(9) In the cracks corrosion products usually found on amalgam were identified.
(10) The study included 101 specimens and used an injection-corrosion technique that obtained internal casts of the main trunks and coronary arterial branches.
(11) The use of methyl methacrylate corrosion-casts has made it possible to examine the intracranial microvasculature on a three-dimensional scale with the scanning electron microscope.
(12) The present paper states very briefly the main steps leading to the technique of scanning electron microscopy (SEM) of vascular corrosion casts.
(13) Early corrosion phenomena required re-polishing every three months.
(14) The objective of this study was to determine the in vitro corrosion products that resulted from crevice corrosion of low- and high-copper dental amalgams.
(15) We present eight cases of chemical burns of the eyes from titanium tetrachloride, an acidic corrosive liquid.
(16) They depended on the type of the AC-plates as well as on their age and corrosion intensity.
(17) Corrosion potential and zero resistance ammetry studies were carried out; the effects observed were variable and depended upon the nature of the metal and its surface condition.
(18) The electrical stimulus parameters produced by the Nucleus receiver-stimulator cause no loss of spiral ganglion cells or corrosion of the platinum band electrodes.
(19) Microvascular corrosion casts of chicken embryos between four and 19 days after fertilization have been prepared.
(20) If these points are considered, comparative data, even of quantitative nature, can be obtained from corrosion casts.
Decay
Definition:
(v. i.) To pass gradually from a sound, prosperous, or perfect state, to one of imperfection, adversity, or dissolution; to waste away; to decline; to fail; to become weak, corrupt, or disintegrated; to rot; to perish; as, a tree decays; fortunes decay; hopes decay.
(v. t.) To cause to decay; to impair.
(v. t.) To destroy.
(n.) Gradual failure of health, strength, soundness, prosperity, or of any species of excellence or perfection; tendency toward dissolution or extinction; corruption; rottenness; decline; deterioration; as, the decay of the body; the decay of virtue; the decay of the Roman empire; a castle in decay.
(n.) Destruction; death.
(n.) Cause of decay.
Example Sentences:
(1) Q In radioactive decay, different materials decay at different rates, giving different half lives.
(2) 4) Parents imagined that fruit drinks, carbonated beverages and beverages with lactic acid promoted tooth decay.
(3) In the absence of prostigmine, increasing the concentration of ACh in the synaptic cleft did not change the time constant for decay of end-plate currents.
(4) The kinetics of bimolecular decay of alpha-tocopheroxyl free radicals (T) was studied by ESR mainly in ethanol and heptanol solvents.
(5) For those synapses that were close to the soma the time constant for decay for the non-NMDA component, which was voltage insensitive, ranged from 4-8 ms. 7.
(6) In analyzing the results with any regimen it is important to have long follow-up since late relapses do occur and initial very positive results tend to decay with greater numbers of patients treated.
(7) In one normal ear, ten noise trauma ears, 11 Meniere disease ears, and 24 eighth nerve lesion ears to reflexes or reflex decay that were suggestive or retrocochlear lesions were observed.
(8) Biochemical, molecular, and immunohistologic studies have identified membrane cofactor protein (MCP) and decay accelerating factor (DAF) on trophoblast cells, which could assist in preventing lysis of the cells by complement-activating maternal antibodies.
(9) It has been 40 years since the first community in the United States added a regulated amount of fluoride to its public water supply to prevent tooth decay.
(10) This could reflect the existence of a parallel set of synapses with fast decay that serve as a shortterm store.
(11) However, clemastine caused a decay in subjects' performance in both Experiments I and II, but only on the tracking task.
(12) The nylon group had the second highest amount of induced WTR cylinder at one day, which had decayed to ATR cylinder by five months.
(13) The observed signals from germinating seeds of Phaseolus aures and decaying leaves of Eucalyptus are presented to show that the signals have characteristic kinetics and intensity.
(14) We develop an analogy between the steric hindrance among receptors detecting randomly placed haptens and the temporary locking of a Geiger counter that has detected a radioactive decay.
(15) Left ventricular relaxation rate was measured by calculation of a time constant of left ventricular pressure decay (T) derived from an exponential curve fit to the digitized tip-micromanometer left ventricular pressure signal.
(16) Factors increasing presynaptic activity (frequency or number of afferent stimulations) during the induction event did not affect the relative amount of LTP decay.
(17) Inhibitor activity decayed with time after radiation (2 Gy) with no activity detected at 6 h even though the cells remained in G2 phase, suggesting that either synthesis or activation of additional components is necessary for recovery from G2 arrest.
(18) These results are consistent with the previous observation in HTC cells that the decay rate of ODC activity in the presence of cycloheximide correlated well with the proportion of ODC present as a complex with antizyme, suggesting the ubiquitous role of antizyme in ODC degradation.
(19) The outward current decays exponentially with an early and late phase.
(20) The decay of acid soluble radioactivity was similar in the two groups, although protein synthesis was lowered by vitamin A deficiency.