What's the difference between flotation and surface?

Flotation


Definition:

  • (n.) The act, process, or state of floating.
  • (n.) The science of floating bodies.

Example Sentences:

  • (1) 5.53pm GMT MPs to seek answers from Royal Mail shareholders And finally, the House of Commons business committee plans to write to large investors in Royal Mail to ask for their views on the flotation of the postal service .
  • (2) The company, which claims to have more than 24 million users, a quarter of whom pay for its premium ad-free service, has a $200m credit line from lenders including Morgan Stanley, Deutsche Bank and Goldman Sachs, any of which could take the lead role in a flotation and earn millions in fees.
  • (3) This article gives a concise guide to the insertion of pulmonary arterial flotation catheters with the emphasis on points of safety that should minimize the risk to the patient.
  • (4) Appearing before the Business, Innovation and Skills committee, Richard Cormack of Goldman Sachs and James Robertson, managing director of UBS, were accused of botching the flotation and costing the taxpayers many millions of pounds.
  • (5) The specimens were mounted on a stainless steel plate with self-curing resin to prevent flotation, mechanical damage, and collapse of the cast specimens following preparation.
  • (6) Preparative isolation of lipid granules from the protoplasts of Candida tropicalis was conducted by a technique of flotation in a stepwise density gradient.
  • (7) This study investigates the effect of contrast medium on flotation of gallstones in bile and its role in stone and fragment dissolution with MTBE.
  • (8) HDL increased the flotation of apoAI to 12-fold and very low density lipoprotein (VLDL) increased the flotation of apoCIII and apoE to 6.5- and 5.5-fold, respectively.
  • (9) Keratinocytes were isolated and prepared from the skin of neonatal rats by a trypsin flotation method.
  • (10) Five months after the £2.2bn flotation of the business he has aggressively built into Britain’s biggest sports retailer and three months after taking control of Newcastle United for £134m, Mike Ashley is sitting in the bar of London’s Four Seasons hotel in ripped jeans and a casual shirt.
  • (11) The helminthological diagnosis is based on the enrichment methods of flotation.
  • (12) Suspensions of enzymatically dispersed human lung parenchymal mast cells were fractionated according to density by flotation through discontinuous Percoll gradients and examined for their responsiveness to release stimulants and pharmacologic agonists.
  • (13) Stock market flotation raised £1.35bn, and this month Hayward, as Vallares's chief executive, announced that new shares worth a similar amount would be sold to finance a merger (technically, a reverse takeover) with a Turkish company, Genel Energy International, which holds rights to oil reserves in the Iraqi province of Kurdistan.
  • (14) The density distribution of the cells was determined by differential flotation on 20 mixtures of di-n-butyl and dimethyl phthalates with specific gravities of 1.062 to 1.142.
  • (15) By the use of chromatography on Sephadex G-200 and single analytic flotation, RIF was found to be contained in the beta-lipoprotein fraction.
  • (16) Stool specimens from a sample of schoolchildren at six schools in Kweneng District were examined for hookworm infection, using the brine flotation method.
  • (17) The latex-containing phagocytic vacuoles are isolated by flotation in a discontinuous sucrose gradient.
  • (18) Single cell suspensions have been prepared, by enzyme digestion, from the mouse preputial gland tumor and separated by flotation centrifugation into populations of different buoyant densities.
  • (19) In the Rhinocerotidae, the high density lipoprotein characteristic of the Equidae and Tapiridae was absent, and the plasma lipoproteins consisted of a complex group having beta mobility on electrophoresis and a flotation pattern usually associated with low density lipoprotein.
  • (20) Cryptosporidiosis was confirmed by zinc sulfate flotation of fecal specimens in four persons, three of whom had been responsible for the care and treatment of infected calves.

Surface


Definition:

  • (n.) The exterior part of anything that has length and breadth; one of the limits that bound a solid, esp. the upper face; superficies; the outside; as, the surface of the earth; the surface of a diamond; the surface of the body.
  • (n.) Hence, outward or external appearance.
  • (n.) A magnitude that has length and breadth without thickness; superficies; as, a plane surface; a spherical surface.
  • (n.) That part of the side which is terminated by the flank prolonged, and the angle of the nearest bastion.
  • (v. t.) To give a surface to; especially, to cause to have a smooth or plain surface; to make smooth or plain.
  • (v. t.) To work over the surface or soil of, as ground, in hunting for gold.

Example Sentences:

  • (1) The resulting dose distribution is displayed using traditional 2-dimensional displays or as an isodose surface composited with underlying anatomy and the target volume.
  • (2) Phospholipid methylation in human EGMs is distinctly different from that in rat EGMs (Hirata and Axelrod 1980) in that the human activity is not Mg++-dependent, and apparent methyltransferase I activity is located in the external membrane surface.
  • (3) To quantify the size of the lesion in mice, the area of the infarct on the brain surface was assessed planimetrically 48 h after MCA occlusion by transcardial perfusion of carbon black.
  • (4) Using monoclonal antibodies directed against the plasma membrane of Madin-Darby canine kidney (MDCK) cells, we demonstrated previously that a glycoprotein with an Mr = 23,000 (gp23) had a non-polarized cell surface distribution and was observed on both the apical and basolateral membranes (Ojakian, G. K., Romain, R. E., and Herz, R. E. (1987) Am.
  • (5) In the surface epithelial cells, the basolateral cell surface showed moderate enzymatic activity.
  • (6) Such an increase in antibody binding occurred simultaneously with an increase in the fluidity of surface lipid regions, as monitored by fluorescence depolarization of 1-(trimethylammoniophenyl)-6-phenyl-1,3,5-hexatriene.
  • (7) The role of Ca2+ in cell agglutination may be either to activate the cell-surface dextran receptor or to form specific intercellular Ca2+ bridges.
  • (8) The subcellular distribution of sialyltransferase and its product of action, sialic acid, was investigated in the undifferentiated cells of the rat intestinal crypts and compared with the pattern observed in the differentiated cells present in the surface epithelium.
  • (9) Even with hepatic lipase, phospholipid hydrolysis could not deplete VLDL and IDL of sufficient phospholipid molecules to account for the loss of surface phospholipid that accompanies triacylglycerol hydrolysis and decreasing core volume as LDL is formed (or for conversion of HDL2 to HDL3).
  • (10) A total of 555 caries lesions were registered on proximal surfaces, 49.1% being primary lesions in the enamel, 21.4% primary lesions into the dentin and 29.5% secondary lesions.
  • (11) Contact angles of Silafocon A and PMMA were relatively uninfluenced by front surface radii between 7.7 and 8.85 and 7.3 to 8.8 mm, respectively.
  • (12) These cells contained organelles characteristic of the maturation stage ameloblast and often extended to the enamel surface, suggesting a possible origin from the ameloblast layer.
  • (13) Together these observations suggest that cytotactin is an endogenous cell surface modulatory protein and provide a possible mechanism whereby cytotactin may contribute to pattern formation during development, regeneration, tumorigenesis, and wound healing.
  • (14) Our Ph1-positive ALL revealed B-cell lineage leukemia, since their surface phenotype were Ia+ and CD10+ and they have rearranged immunoglobulin JH genes.
  • (15) The complete nucleotide sequence of the gene for a cell surface protein antigen (SpaA) of Streptococcus sobrinus MT3791 (serotype g) was determined.
  • (16) To investigate the mechanism of enhanced responsiveness of cholesterol-enriched human platelets, we compared stimulation by surface-membrane-receptor (thrombin) and post-receptor (AlF4-) G-protein-directed pathways.
  • (17) Lysis of EAC4b,3b cellular intermediates formed to contain a low surface amount of C3b was more inhibited than was lysis of cells formed with a standard amount of C3b on the surface.
  • (18) After either 5 or 10 days of culture with both cytokines, intense immunofluorescent staining for Ia could be identified on the surface of greater than 80-90% of the viable islet cells.
  • (19) Within the capillary-perfused mucosa and muscularis (between 50 and 2000 microns from the urothelial surface), concentrations decreased by 50% for each 500-microns distance.
  • (20) Displacement of the surface of the cornea of bovine eyes after disruption of intact structures was investigated by means of holographic interferometry.