What's the difference between buffer and underrun?
Buffer
Definition:
(n.) An elastic apparatus or fender, for deadening the jar caused by the collision of bodies; as, a buffer at the end of a railroad car.
(n.) A pad or cushion forming the end of a fender, which receives the blow; -- sometimes called buffing apparatus.
(n.) One who polishes with a buff.
(n.) A wheel for buffing; a buff.
(n.) A good-humored, slow-witted fellow; -- usually said of an elderly man.
Example Sentences:
(1) In contrast, resting cells of strain CHA750 produced five times less IAA in a buffer (pH 6.0) containing 1 mM-L-tryptophan than did resting cells of the wild-type, illustrating the major contribution of TSO to IAA synthesis under these conditions.
(2) The proportion of motile spermatozoa decreased with time at the same rate when samples were prepared in either HEPES or phosphate buffers.
(3) The third route was quantitated by its sensitivity to probenecid and its activity was increased in saline buffers and upon addition of glucose and was inhibited by oligomycin.
(4) The 0.1 M phosphate buffer eluant was electrophoretically heterogeneous and did not elicit the production of bactericidal antibodies in rabbits.
(5) In the same buffer a resonance marked L by Russu et al.
(6) The polymerization of dATP, dCTP, and dGTP onto the defined length initiator, d(pA)10, has been carried out in four buffers.
(7) Hyperosmolar buffer slightly increased the sensitivity and maximal response to methacholine as well as the cholinergic twitch to electric field stimulation.
(8) The present results using approximately 12% hemoglobin concentration in 0.1 M Bistris buffer at pD 7 and 27 degrees C with and without organic phosphate show that there is no significant line broadening on oxygenation (from 0 to 50% saturation) to affect the determination of the intensities or areas of these resonances.
(9) These results indicate that FMLP increased a pulmonary microvascular permeability in isolated buffer-perfused rabbit lungs that is PMN dependent and mediated by LT produced possibly by a result of ROS production.
(10) Although the brain AP50 is prominently phosphorylated by an endogenous protein kinase in isolated coated vesicle preparations, the neuronal AP50 was not detectably phosphorylated in intact cells as assessed by two-dimensional non-equilibrium pH gradient gel electrophoresis of labeled cells dissolved directly in SDS-containing buffers.
(11) In conclusion, the ability of distal tubules to establish a significant pH gradient will contribute to the titration of non bicarbonate buffers, i.e., to titratable acid formation.
(12) Studies were conducted in isolated, buffer-perfused rat lungs to determine if prostaglandin (PG) E1 attenuated pulmonary edema provoked by hydrogen peroxide (H2O2).
(13) One cellulase is buffer-soluble, the other buffer-insoluble but extractable with high salt concentrations.
(14) A pH 2.5 buffer was found to be the most effective solution for eluting gp41 from a 41-1S monoclonal antibody column.
(15) Furthermore, even the action of Lys-5 on the Pseudomonas OM was abolished when the assays were performed in the presence of 150 mM NaCl instead of the low-ionic strength buffer earlier used by investigators studying the effect of polycations on the Pseudomonas OM.
(16) The results suggest that the conversion of the HRP-TMB reaction product to an electron-dense form during osmication is intimately associated with the pH of the phosphate buffer and the total time of osmication.
(17) This combined process decreased by 63% the decimal reduction times for the heat treatment when the organism was suspended in buffer and by 43% when suspended in milk.
(18) The temperature-activated 4 to 5 S EBP transformation is found to be highly reproducible without loss of [3H]estradiol-binding activity in a buffer containing an excess of [3H]estradiol, 40 mM Tris, 1 mM dithiothreitol, and 1 M urea at pH 7.4.
(19) Incubation of freshly isolated rat hepatocytes with highly purified radiolabeled rat transferrin in weakly buffered medium in the presence of 10 mM ethanol resulted in a marked diminution of iron uptake by these cells, associated with a greater pH depression than in ethanol-free control studies.
(20) It was found that the use of a pH 9.6 buffer during the coating of ELISA plates led to the dissociation of virions into subunits which bound preferentially to the solid phase.
Underrun
Definition:
(v. t.) To run or pass under; especially (Naut.), to pass along and under, as a cable, for the purpose of taking it in, or of examining it.
Example Sentences:
(1) In all 5 there was "rupture" of a large gastric fundal varix or "pile" and bleeding was controlled at emergency laparotomy by underrunning the varices through a high anterior gastrotomy.
(2) In uncontrolled hemorrhage from gastric varices, surgical underrunning offers a means of providing initial control.
(3) Sclerotherapy successfully controlled the bleeding in four of these, whereas five required surgical underrunning of the fundal varix.
(4) Turning next to the special situations of overrunning and underrunning, the conditions under which a valid analysis is possible are identified, and a method of analysis based on the frequentist philosophy is presented.
(5) Vagotomy, pyloroplasty and underrunning of the bleeding point was performed in 101 cases with ten deaths (10 per cent), partial (Billroth II) gastrectomy in 81 cases with ten deaths (12 per cent), and vagotomy and antrectomy in 16 cases with one death (6 per cent).
(6) Three such cases were identified and treated with simple underrunning of the lesion with no mortality and minimal morbidity.
(7) Of our sample 70% selected truncal vagotomy and drainage with underrunning of the ulcer as the operative treatment of choice for bleeding.
(8) Severe, underrunning footrot had a significant adverse effect on body weight, for each year of the trial.
(9) Instead, a wide gastroduodenotomy was performed, the artery in the base of the ulcer underrun and HSV performed.
(10) Most common were axial wall cracks (21.7%), underrun sole (14.6%), footrot (13.0%), punctured sole (9.3%) and white line disease (7.2%).
(11) This was due particularly to increased incidence with age of white line abscess and sole ulcer and, to a lesser extent, underrun heel.
(12) Both sole ulcer and underrun heel had lower incidence in the second half of the year than the first.