(n.) A kind of shallow plow used in tillage to break the ground, and clear it of weeds.
(n.) A thin piece of metal placed between two parts to make a fit.
Example Sentences:
(1) The model contains 13 parameters that can be varied, 12 shim coil currents, and the receiver mixer frequency.
(2) The derivatized bile acids were separated stepwise on a Shim-pack CLC-ODS column using acetonitrilemethanol-water (100:50:30) (A), (100:50:20) (B), and (100:50:0) (C) as mobile phases with changing automatically from A to C using a solvent changer.
(3) For this purpose, a method of automatic shimming was developed and tested on phantoms and volunteers.
(4) This probe design tunes to 23-Sodium for rapid shimming and then, to 31-Phosphorus for measurements of pH and high energy phosphate metabolites.
(5) Voxels may be shimmed using only first-order X, Y, and Z shims to produce three-dimensional shim current maps, thus avoiding shim coupling problems.
(6) A novel latent proteinase of which activity was induced by heating in the presence of NaCl was purified to homogeneity from threadfin-bream muscle by a combination of DEAE-cellulose, Con A-Sepharose, Arg-Sepharose, and Shim-pack HAC chromatographies.
(7) Our localization strategy also allows us to shim easily on the well-defined volume of interest and leads to high-resolution spectra that exhibit multiplet structure.
(8) A complete shimming process generally requires only 80 transients.
(9) A data link to the shim power supply allows automatic update of currents.
(10) Addition of CO2 to the oxygen and appropriate changes in gas flow and "shim" pressure permit changes to be made in the ventilation of the device during perfusion to achieve desired levels of PaO2 and PaCO2 under widely disparate conditions of temperature and flow.
(11) We recently described the identification of BOS1 (Newman, A., J. Shim, and S. Ferro-Novick.
(12) However, despite our monitoring of additional variables, including shim and inlet pressure and recirculation flow, gas exchange abnormalities were encountered in 5 patients on whom the membrane oxygenator was used; in 4 of these cases the abnormalities were encountered prior to our recognition of the potential for occasional internal shunting with this device.
(13) The thickness of the blood film is decreased by increasing the "shim" pressure, so that increasing the "shim" presure results in higher PaO2.
(14) The chromatographic conditions were as follows: column: Shim-pack CLC-ODS; mobile phase: methanol-water (70:30).
(15) In addition to the main magnet important additions like gradient and shim coils, aspects of site planning and future problems are discussed.
(16) An acid sialidase [EC 3.2.1.18] has been purified from human placenta by means of successive procedures including extraction, Con A-Sepharose adsorption, ammonium sulfate precipitation, activation, p-aminophenyl thio-beta-D-galactoside-CH-Sepharose (PATG-Sepharose) affinity chromatography and high-performance liquid chromatography on a Shim pack Diol 300 column.
(17) The resolution and homogeneity limitations of echo-planar imaging (EPI) are overcome by zoom imaging of an easily shimmed localized volume.
(18) This high failure rate has led the authors to reevaluate the use of prosthetic shims or wedges in large fragment defects but to continue to use bone grafting for smaller, circumscribed defects.
(19) A sialidase [EC 3.2.1.18] has been partially purified from human placenta by means of procedures comprising Con A-Sepharose adsorption, ammonium sulfate precipitation, sucrose density gradient centrifugation, and high-pressure liquid chromatography on a Shim pack Diol 300 column.
(20) We have developed a pulse sequence which enables fast and accurate measurement of three-dimensional field maps in vivo, and a data analysis package that allows calculation of shim currents to optimally shim arbitrary selected volumes.
Wedge
Definition:
(n.) A piece of metal, or other hard material, thick at one end, and tapering to a thin edge at the other, used in splitting wood, rocks, etc., in raising heavy bodies, and the like. It is one of the six elementary machines called the mechanical powers. See Illust. of Mechanical powers, under Mechanical.
(n.) A solid of five sides, having a rectangular base, two rectangular or trapezoidal sides meeting in an edge, and two triangular ends.
(n.) A mass of metal, especially when of a wedgelike form.
(n.) Anything in the form of a wedge, as a body of troops drawn up in such a form.
(n.) The person whose name stands lowest on the list of the classical tripos; -- so called after a person (Wedgewood) who occupied this position on the first list of 1828.
(v. t.) To cleave or separate with a wedge or wedges, or as with a wedge; to rive.
(v. t.) To force or drive as a wedge is driven.
(v. t.) To force by crowding and pushing as a wedge does; as, to wedge one's way.
(v. t.) To press closely; to fix, or make fast, in the manner of a wedge that is driven into something.
(v. t.) To fasten with a wedge, or with wedges; as, to wedge a scythe on the snath; to wedge a rail or a piece of timber in its place.
(v. t.) To cut, as clay, into wedgelike masses, and work by dashing together, in order to expel air bubbles, etc.
Example Sentences:
(1) It is suggested that the normal cyclical release of LH is inhibited in PCO disease by a negative feedback by androgens to the hypothalamus or the pituitary, and that wedge resection should be reserved for patients in whom other forms of treatment have failed.
(2) An opening wedge osteotomy is then directed posterior-dorsal to anterior-plantar, to effectively plantarflex the posterior aspect of the calcaneus.
(3) Lisinopril increases cardiac output, and decreases pulmonary capillary wedge pressure and mean arterial pressure in patients with congestive heart failure refractory to conventional treatment with digitalis and diuretics.
(4) It was then determined whether reducing the PA wedge pressure during exercise with prazosin (9 patients) or dobutamine (6 patients) reduced ventilatory levels toward normal.
(5) He elaborates: "Republicans use powerful economic wedge issues to great impact.
(6) The method described uses film DOT-I and DOT-II by Dupont, whereby the exposure of the step wedge takes place on a linear accelerator with a photo energy of 10 MeV.
(7) Indirect methods to evaluate left ventricular function included the use of the Swan-Ganz catheter for pulmonary capillary wedge pressure measurement, systolic time intervals, and cardiac output.
(8) We performed carinal reconstruction in eight patients, sleeve pneumonectomy in eight patients and wedge pneumonectomy in one.
(9) The mitral valve area was less than 1 cm2 in 61%, the wedge pressure over 25 mmHg in 59% and the pulmonary artery systolic pressure over 50 mmHg in 59%.
(10) Lungs were evaluated for the presence of wedge-shaped pleural-based densities and for the presence of an associated vascular sign.
(11) The isodose curves exhibited the desired wedge angles over the range of field sizes from 5 x 5 to 15 x 40 cm.
(12) This is contradicted, however, by maintained blood pressure and pulmonary capillary wedge pressure, increased cardiac output, and reduced peripheral resistance.
(13) Early complications included disc entrapment against the ventricular wall in three cases, wedging of chorda between disc and valve rim in two and posterior perforation of the left ventricle in three patients.
(14) Meanwhile, among hepatic and systemic hemodynamics, wedged hepatic venous pressure, hepatic venous pressure gradient, free hepatic venous pressure, cardiac index, systolic blood pressure, systemic vascular resistance, and stroke volume were found to have changed significantly after tilting.
(15) Cardiac disorders being usually concomitant with this syndrome (interventricular leak, pulmonary arterial wedge stenosis etc.)
(16) As an initial feasibility study of computer-controlled radiation therapy, its application to produce wedge-shaped dose distributions by moving the collimator jaws has been evaluated.
(17) Five shoulders had a posterior opening-wedge osteotomy of the scapular neck to correct the excessive retroversion of the glenoid cavity.
(18) The results showed a satisfactory inter- and intraobserver agreement for wedge (Kappa = 0.72 and 0.90) and compression fractures (Kappa = 0.60 and 0.92).
(19) Among 28 patients with chronic obstructive pulmonary disease (COPD) with increasing dyspnea, the resting mean pulmonary arterial wedge pressure was elevated (greater than 12mm Hg) in 4 and became abnormal with exercise in 3 other subjects.
(20) After induction of spinal anaesthesia the mean arterial pressure, right atrial pressure, pulmonary capillary wedge pressure and systemic vascular resistance were significantly reduced.