(n.) Act of keeping a balance, or state of being balanced; equipoise.
(n.) The process by which animal and vegetable organisms preserve a physiological balance.
Example Sentences:
(1) Both eosin derivatives, however, inactivate acetylcholinesterase upon illumination of air-equilibrated samples of hemoglobin-free labeled ghosts.
(2) By applying this method to rat cardiac whole muscle, high-molecular weight proteins, such as myosin heavy chains, are focused on the first-dimensional gels and, in addition, minor components are resolved on the second-dimensional gels, without loss during equilibration with detergent.
(3) Pre-equilibration was more effective in the absence of insulin than in the presence of the hormone.
(4) Pulse-chase analysis of the labelling of these lipids indicates that PI and lysoPI rapidly equilibrate after the initial slow synthesis of PI.
(5) Significant temperature differences are predicted between the vessels and the immediately adjacent tissue when the equilibration length is comparable to or longer than the size of the heated tissue region.
(6) During phase 1 (3-day equilibration period; ad libitum regular hospital diet), plasma choline levels were within the normal range for all subjects.
(7) Halothane variably increased the current produced (and therefore the estimated oxygen tension) at all polarizing voltages in saline solution equilibrated with either N2 or air.
(8) Human mononuclear phagocytes cultured in vitro were tested after preincubation with uremic plasma dialyzed in vitro and the effects of pre and post hemodialysis plasma were compared with the effect of dialyzates equilibrated with uremic plasma in vivo.
(9) Two types of transport systems are described: active transport accumulates glucose in specific cells, whereas facilitative transport equilibrates blood glucose and intracellular glucose inside all mammalian cells.
(10) Oxygenation of crystalloid cardioplegic solutions is beneficial, yet bicarbonate-containing solutions equilibrated with 100% oxygen become highly alkaline as carbon dioxide is released.
(11) Blood pressure, blood volume and renal blood flow were determined in 101 men; forty-three were normal subjects and fifty-eight were untreated permanent essential hypertensive patients with normal renal function and equilibrated sodium balance.
(12) For glucose this process is passive and leads to equilibration of intracellular and extracellular concentrations.
(13) This method does not require changing the medium to one with high KCl to depolarize the membrane potential nor does the proton concentration need to be equilibrated across the plasma membrane.
(14) In 78% of HI LCBF measurements, clearances following a brief H2 inhalation were faster than clearances following tissue equilibration with H2.
(15) Following injection at pressures between 2.8 and 26.6 kPa, the mean PO2 of equilibrated saline containing an air bubble was 0.80 kPa higher than the mean value obtained at injection pressures of less than 2.8 kPa.
(16) During this time, no apparent change in the rate of equilibration of 45Ca++ from the extracellular medium could be detected, whereas in cells preloaded with 45Ca, net 45Ca was lost from the cells at a greater rate than controls.
(17) This paper presents data revealing the regulating, equilibrating role of the melatonin-free pineal extract.
(18) Thus the relative magnitude of contrast enhancement of a tissue appears to be related to the volume of the rapidly equilibrating extracellular space.
(19) Second, the cytoplasmic extracts were subfractionated by equilibration in sucrose density gradient.
(20) Both in the HA and the dental mineral systems, the results are consistent with the precipitation of another carbonate-containing apatitic phase during equilibration.
Equilibrium
Definition:
(n.) Equality of weight or force; an equipoise or a state of rest produced by the mutual counteraction of two or more forces.
(n.) A level position; a just poise or balance in respect to an object, so that it remains firm; equipoise; as, to preserve the equilibrium of the body.
(n.) A balancing of the mind between motives or reasons, with consequent indecision and doubt.
Example Sentences:
(1) In contrast with oligodendrocytes, [Cl-]i in astrocytes is significantly increased (from 20 to 40 mM) above the equilibrium distribution owing to the activity of an inward directed Cl- pump; this suggests a different mechanism of K+ uptake in these cells.
(2) 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.
(3) Fibroblasts from WHHL rabbits bound little, if any, human LDL, an apo B-containing lipoprotein, in 4 degrees C equilibrium binding experiments.
(4) Analysis of the product by equilibrium density centrifugation and processive hydrolysis with snake venom phosphodiesterase suggested that the noncomplementary nucleotides were present in phosphodiester linkage.
(5) It is shown that, by comparison of a reacting mixture at chemical equilibrium with a non-reacting but equally composed one, the sum of the mean concentrations of the reaction products can immediately be taken from optical absorption or from interferometric measurements.
(6) Equilibrium and kinetic studies of the interaction of gene 32 protein of T4 phage with single-stranded fd DNA were performed monitoring the changes in protein fluorescence.
(7) Equilibrium and kinetic aspects of the binding of several proteins to N-(3-carboxypropionyl)aminodecyl-Sepharose, an amphiphilic ampholytic adsorbent, were studied at 22 degrees C, pH 7.0, I 0.10--0.12.
(8) Ceftriaxone, a cephalosporin, is bound reversibly to defatted human serum albumin from adults, with a first stoichiometric binding constant of 60,000 M-1, as found by equilibrium dialysis at pH 7.4, 37 degrees.
(9) In addition, a redistribution of cellular controls of the host reaction to parasites may act as a complementary mechanism for establishment of the viable equilibrium between host and parasite.
(10) In addition, although aspirin does transfer the acetyl group to hemoglobin both in vitro and in vivo, in our experiments the reaction does not result in any alteration in the oxygen equilibrium of either intact erythrocytes or hemoglobin in solution.
(11) administration the time for distribution in the body amounted to 8 h. The extrapolated initial concentrations in the equilibrium to distribution amounted to 0.68% of the administered dose in the plasma volume, and the theoretical volume of distribution was 5 times the body volume.
(12) This conception of the city as an expression of both regal power and social order, guided by cosmological principles and the pursuit of yin-yang equilibrium, was unlike anything in the western tradition.
(13) A molecular weight of 51,500 was determined from sodium dodecyl sulfate polyacrylamide gel electrophoresis, while sedimentation equilibrium ultracentrifugation gave a value of 49,500.
(14) Due to the higher stability constant, of MgCDTA, as compared to MgEDTA, addition of CDTA to a medium containing free Mg2+ and MgEDTA will not only chelate the free Mg2+, but it will also shift the equilibrium from MgEDTA towards MgCDTA, i.e.
(15) At alkaline pH, the Schiff's base equilibrium can be continuously and specifically displaced by reduction in situ with sodium cyanohydridoborate, which on the other hand leaves intact the reacting aldehyde groups of oxidized tRNA.
(16) Scatchard analysis of equilibrium 125I-HA binding to permeabilized hepatocytes in suspension at 4 degrees C indicates a Kd = 1.8 x 10(-7) M and 1.3 x 10(6) molecules of HA (Mr approximately 30,000) bound per cell at saturation.
(17) If the PET measurement is commenced prior to arteriovenous equilibrium, significant errors occur in calculated CBV.
(18) Cells were labeled with [3H]AA for 3 h, followed by a 20-h equilibrium period, then exposed to 10(-8) M PTH for different time periods ranging from 2-60 min.
(19) The equilibrium binding constants for the binary complex formation of eIF-4E-eIF-4A, m7GpppG-eIF-4E, m7GpppG-eIF-4F, globin mRNA-eIF-4E, globin mRNA-eIF-4F, and globin mRNA-eIF-4A were measured by direct fluorescence titration experiments.
(20) To validate the repeated use of radionuclide equilibrium angiography for determining left ventricular (LV) ejection fraction (EF) and end-diastolic and end-systolic volumes (EDV and ESV), 25 patients were studied on an hourly basis an average of 9.1 days after acute myocardial infarction.