(n.) An apparatus for delivering measured quantities of liquid or for measuring the quantity of liquid or gas received or discharged. It consists essentially of a graduated glass tube, usually furnished with a small aperture and stopcock.
Example Sentences:
(1) Use of the multiple-dose syringe pump system resulted in a savings of $934.81 in material costs compared with the bottle and burette system and $9.70 in material costs compared with the single-dose syringe pump system (based on 40 doses).
(2) Ultrathin (120-180 microns) gels were prepared with the flap technique and 500 microns gels with the cassette technique; 500 microns gels with immobilized pH gradients were cast using precision molds and a computer controlled mixing device of four burettes.
(3) When the cost of wasted drug was considered, the cost per day of the multiple-dose syringe pump system was substantially less (70%) than the cost per day of the bottle and burette system and approximately the same as the cost per day for the single-dose syringe pump system.
(4) To do this the lower end of the burette must be blocked and a method of doing this without the need to fuse on a glass tap is described.4.
(5) At a selected pO2, O2 supply is maintained by injecting appropriate amounts of O2-saturated aqueous medium into the reaction chamber by using a motor-driven burette.
(6) Implementation of a multiple-dose, multiple-flow-rate syringe pump system may result in cost savings over a traditional bottle and burette system and could complement an existing single-dose syringe infusion system.
(7) Assembled from readily available and economical instrumental components, the apparatus includes a pH meter, a thermoelectric heating and stirring device, a motor-driven burette, and an automatic recorder.
(8) Intravenous fluid containers, burettes, a syringe, infusion sets and end-line filters were evaluated.
(9) Up to 50% potency of chlormethiazole and nitroglycerin, 15-25% of isosorbide dinitrate, and 13-20% of diazepam was lost to PVC sets without burettes, and an additional 10-15% loss of each drug resulted when PVC sets with burettes were used.
(10) A new way of measuring the graduation error in the stem of the Lloyd-Haldane burette is described, in which a fixed mass of water is made to occupy different parts of the stem.
(11) One solution was prepared in a soft polyvinyl chloride minibag (Viaflex, Baxter-Travenol), the other in a semirigid plastic burette (Buretrol, Baxter-Travenol).
(12) administration sets with and without cellulose propionate burettes and to polybutadiene (PBD) sets with and without methacrylate butadiene styrene (MBS) burettes was studied.
(13) Infusion bags, burettes, a syringe, infusion tubings and end-line filters were tested in static and in dynamic experiments.
(14) All drugs (except chlormethiazole) were diluted with 0.9% sodium chloride injection (NS) in glass bottles or in the burette chambers.
(15) The strata in the minibag showed smaller variations in potassium concentration than did corresponding layers in the burette.
(16) Each patient received gentamicin therapy via intravenous piggyback (IVPB) and in-line burette (ILB) methods.
(17) Change of in-line burettes in patients in intensive care at 72-hour intervals is safe and should result in substantial cost savings to hospitals.
(18) At the time the new syringe pump system was implemented, the teaching hospital was using a gravity-dependent bottle and burette system and the community hospital was using a single-dose syringe pump system.
(19) The cumulative amount of paraldehyde delivered at the end of the administration set at six hours was 84% for 5% dextrose solutions in burettes, and 89% or 90% for all other solutions and i.v.
(20) The method involves dilution with an albumin solution, a 2-hr incubation with a commercially available substrate mixture, and manual titration with a burette.
Gradation
Definition:
(n.) The act of progressing by regular steps or orderly arrangement; the state of being graded or arranged in ranks; as, the gradation of castes.
(n.) The act or process of bringing to a certain grade.
(n.) Any degree or relative position in an order or series.
(n.) A gradual passing from one tint to another or from a darker to a lighter shade, as in painting or drawing.
(n.) A diatonic ascending or descending succession of chords.
(v. t.) To form with gradations.
Example Sentences:
(1) With grievous amazement, never self-pitying but sometimes bordering on a sort of numbed wonderment, Levi records the day-to-day personal and social history of the camp, noting not only the fine gradations of his own descent, but the capacity of some prisoners to cut a deal and strike a bargain, while others, destined by their age or character for the gas ovens, follow "the slope down to the bottom, like streams that run down to the sea".
(2) A gradation in steady-state cyclic guanosine 3',5'-monophosphate (cGMP) levels was observed in incubated slices of these tissues (inner medula greater than outer medulla greater than cortex).
(3) In a multivariate Cox model analysis, the independent correlates of long-term survival were emergent operation with cardiogenic shock (multivariate mortality rate ratio [RR] = 14.0), use of a postoperative intraaortic balloon pump (RR = 3.9), ejection fraction less than 50% (RR = 2.4), preoperative history of congestive heart failure (RR = 2.2), cardiopulmonary bypass time (RR = 1.4 for each 30-minute increment), uncorrected mitral regurgitation (RR = 1.5 for each increment of angiographic gradation), left main coronary artery narrowing (RR = 1.7) and diabetes (RR = 1.6).
(4) To compare this staining with the occurrence of NSE in serum, a histological staining index (HSI) was established by semiquantitative gradation of the staining.
(5) The structural differences are a result of adaptations which allow gradations in mechanical output to be achieved.
(6) Also examined was the gradation of attention effects on efferent modulation demonstrated in animals but never studied in humans.
(7) Results indicate support for the 'coping hypothesis' of post-injury psychological deficits, although effects consistent with a 'gradations of severity' hypothesis were also present.
(8) Immunoglobulin (Ig) A, IgG1, AND IgG2 were detected in the gastrointestinal secretions, with an apparent gradation in stability (IgA greater than IgG1 greater than IgG2) under the conditions investigated.
(9) Thus it appears that there is a gradation of radiation damage to the hypothalamic-pituitary axis which is dependent primarily on the dose received rather than the time interval after radiotherapy.
(10) Histopathologic changes corresponded to the clinical gradation of endophthalmitis, including progressive retinal necrosis.
(11) Adenosine triphosphatase, 5'-nucleotidase, acid phosphatase and nonspecific esterase show continuous gradations of enzyme activity.
(12) • "I made a mistake by allowing myself to get drawn into a great long argument about exactly what the gradations of rape were."
(13) The experimental evidence indicates that gap genes could be responsible for both of these effects: they activate the pair-rule system asymmetrically and, when first expressed, generate a sufficiently complex landscape of concentration peaks and gradations to provide the local cues needed to correctly position and align the pair-rule stripes.
(14) Cell kinetically, urothelial carcinomas yield similar gradations.
(15) Standardized gradations of pain and function showed improvement over-all, but significant impairment remained.
(16) The authors came to the conclusion on the usefulness of such method of identification of the stomatologic material shades and even of the intermediate gradations of these shades.
(17) This latter finding emphasizes the importance of recruitment and especially synchronization of motor unit activity to the gradation of output tension.
(18) The highest row of OHC stereocilia is known to show an orderly gradation in height along the length of the cochlea.
(19) The cells of the plasmacytic category also showed fine gradations from plasmablasts to typical mature plasma cells.
(20) Replacement of Phe-82 in yeast iso-1-cytochrome c with Tyr, Leu, Ile, Ser, Ala, and Gly produces a gradation of effects on (1) the reduction potential of the protein, (2) the rate of reaction with Fe(EDTA)2-, and (3) the CD spectra of the ferricytochromes in the Soret region under conditions where contributions from the alkaline forms of these proteins are absent.