(n.) One of the earths, consisting of two parts of aluminium and three of oxygen, Al2O3.
Example Sentences:
(1) ASF-II was purified to apparent homogeneity by using concanavalin A-agarose affinity chromatography, DEAE-cellulose chromatography, alumina gel adsorption, and isoelectric focussing techniques.
(2) The free nucleoside IV was obtained by removal of blocking groups by sodium methoxide catalyzed deacylation, deionization under reducing atmosphere, and chromatography on neutral alumina.
(3) Breath was passed through a cooled loop of alumina to adsorb, concentrate, and release, on heating, pentane.
(4) After catecholamines are adsorbed on alumina, the amino groups not responsible for adsorption are dansylated by a solid-phase reaction.
(5) Subarachnoid alumina may be a good model for human arachnoiditis.
(6) However, ascorbic acid, a potent antioxidant, is extracted with the catecholamines onto the alumina and prevents such destruction.
(7) Sporulating cells of Bacillus sphaericus 9602 containing fully engulfed forespores at different stages of maturity were broken by ultrasonic disruption, followed by grinding with alumina.
(8) Alumina, Kieselguhr and various grades of silica gel have been tested as supports.
(9) From the unsaponifiable fraction (63 g) of linseed oil (25 kg), two terpenic alcohols were isolated by alumina column, thin-layer, and gas-liquid chromatography.
(10) The salient elements of the methods are extraction of the residues as the free amine with benzene, rapid cleanup on an alumina column, and quantification of the free amine in methanol via SPF.
(11) Aluminas, silicas and aluminosilicates were evaluated for their ability to sorb radiolabeled aflatoxin B1 (AFB1) from aqueous solution (in vitro).
(12) In the current research, the average coefficient of kinetic friction for the stainless steel couple (0.139) was less than that for the stainless steel arch wire against a polycrystalline alumina bracket (0.174).
(13) The method entails blender extraction of 10 g liver with ethyl acetate, column chromatography through Sephadex LH-20 and neutral alumina, and LC analysis on a C18 column with UV detection at 260 nm.
(14) Dry ground feed is Soxhlet extracted with hexane and passed through a 2% deactivated alumina column for initial cleanup.
(15) Increasing the amount of alumina proportionally increased composite strength.
(16) Condensation of 1,2,3,4,6-penta-O-acetyl-beta-D-galactopyranose with benzyl 2-azido-4,6-di-O-benzyl-2-deoxy-beta-D-galactopyranoside in the presence of trimethylsilyl triflate gave crystalline benzyl 2-azido-4,6-di-O-benzyl-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-beta-D-ga lactopyranosyl)-beta-D-galactopyranoside (76%), which was converted into benzyl 2-azido-4,6-di-O-benzyl-2-deoxy-3-O-(2,6-di-O-benzyl-beta-D-galactopy ranosyl)-beta-D-galactopyranoside and condensed with 3,4,6-tri-O-acetyl-2-azido-2-deoxy-alpha-D-galactopyranosyl bromide in the presence of silver silicate on alumina and molecular sieve 4 A to give 61% of benzyl O-(3,4,6-tri-O-acetyl-2-azido-2-deoxy-beta-D-galactopyranosyl)-(1----4)- O-(2,6-di- O-benzyl-beta-D-galactopyranosyl)-(1----3)-2-azido-4,6-di-O-benzyl-2-deo xy- beta-D-galactopyranoside.
(17) However, these compounds were not recoverable using the alumina column method, so no comparisons between the two methods were possible.
(18) The cementless alumina total knee prosthesis, which uses alumina in the portions coming in contact with the bone and a combination of alumina and ultra-high molecular-weight polyethylene (UHMWPE) in the sliding portions, is referred to as a total condylar.
(19) In the monkey with an alumina focus in the primary motor area, proprioceptive afferents are crucial in triggering or modulating seizures.
(20) This study, a 4-month follow-up period of a 12-month treatment study by the present authors, was concerned with the permanent effects of treatment with diphenylhydantoin and phenobarbital in the alumina-gel monkey model.
Ceramics
Definition:
(n.) The art of making things of baked clay; as pottery, tiles, etc.
(n.) Work formed of clay in whole or in part, and baked; as, vases, urns, etc.
Example Sentences:
(1) The method used in connection with the well known autoplastic reimplantation not only presents an alternative to the traditional apicoectomy but also provides additional stabilization of the tooth by lengthing the root with cocotostabile and biocompatible A1203 ceramic.
(2) Resorption of calcium and depositon of inorganic phosphates in the implanted ceramics suggested that ions were being exchanged with the body fluids.
(3) Antigenic specificity was demonstrated between tricalcium phosphate ceramic and fetal bovine serum in crisscross.
(4) In the small ceramic workshops in the Gouda region, simple pneumoconiosis is still commonly present (13.3%), whereas the silicosis prevalence in the highly mechanized industries is low (1.7%).
(5) A reference glass, five ceramic materials, and one resin-based composite were tested.
(6) Plaster of Paris, a biocompatible, degradable ceramic material prepared from CaSO4, may have an osteogenic property and become an alternative implant material for ear surgery.
(7) These ceramics can be used as augmentation material in combination with autogenous bone.
(8) It is found that, in contrast to most metallic materials yet in keeping with many ceramics, there are no distinct fracture morphologies in pyro-carbons which are characteristic of a specific mode of loading; fracture surfaces appear to be identical for both catastrophic and subcritical crack growth under either sustained or cyclic loading.
(9) Simultaneously, bone ingrowth at the expense of the ceramic is observed.
(10) The ceramic sections, approximately 15.3 mg, were implanted into both proximal femurs of 10 male and 10 female albino SW rats.
(11) Many ceramists advocate polishing, rather than glazing, to control the surface luster of metal ceramic restorations.
(12) The investment containing 2.0 wt% NbC showed nearly the same casting accuracy for Ni-Cr alloys for metal-ceramic restoration as the commercial phosphate-bonded investment.
(13) Three subsequent phases of interface maturation can be distinguished, finally resulting in firm fixation of the implant by mechanical interlocking of supporting bone and ceramic.
(14) Two different prototypes of columella materials made from aluminum oxide ceramics were newly designed by the author for ossicular reconstruction.
(15) Despite advantages and technological advances in the techniques of dental casts and ceramics attachment to metal, plastic materials for crown and bridge facetting are still of utmost importance for prosthetic procedures.
(16) Male workers with a history of long-term exposure to nonfibrous particulates in different industries (metal, ceramics, brick, glass, stone etc.)
(17) If ceramic inlays and onlays are considered in restorative work, some operations which, more than in other areas of dental engineering, decide upon the success or failure should be given special attention.
(18) This study examined the enhancing effects of newly constructed ceramic implants, consisting of unidirectional macroporous (200 micron in diameter) material, upon in vivo bone formation in dogs' femurs.
(19) The ceramic ball, ceramic cup combination of total hip prostheses may have promise of wear rates that could be thousands of times smaller than polyethylene alone.
(20) The artist covered every inch of the steps in front of his house in tiles, ceramics and mirrors – originally in the green, yellow, blue and white of the Brazilian flag, later adding tiles in other colours brought by visitors.