(a.) Pertaining to, or like, a dodecahedion; consisting of twelve equal sides.
Example Sentences:
(1) While the starting conformation of the peptide in the consecutive beta-turn structure allowed for the proper orientation of three carbonyl oxygen atoms for chelation to the metal ion, the dynamics of complex formation rearranged the peptide structure substantially, leading to the formation of an 8-coordinated Ca2+ complex in a dodecahedral spatial arrangement.
(2) In 0.1 M salt approximately 12 tetramers (derived from three or four monoparticles) reassemble to form highly regular structures, which may possess dodecahedral symmetry.
(3) The latter value may be compared with the corresponding one which is determined by the injection axis relative to the dodecahedral disposition of the connexions.
(4) The core was relatively inaccessible to trypsin digestion, was composed of protein P1, and was in the dodecahedral framework reported previously.
(5) Dodecahedral crystals of chicken pepsinogen have been prepared, one perfect cystal having the dimensions 0.090mm x 0.086mm x 0.009mm.
(6) After treatment with hydrogen fluoride and purification twice by means of column chromatography, rhombic dodecahedral crystals of glucagon have obtained which are identical with natural products in respect of amino acid compositions, chromatographic and disc-electrophoretic behaviour, etc.
(7) These structures are dodecahedral assemblages of proteins P1, P2, P4, and P7.
(8) Calcium oxalate occurs in several forms--the dihydrate as bipyramidal and dodecahedral prisms, the monohydrate as biconcave ovals, dumbbell shapes and intermediate forms.
(9) (Trypsin treatment of this component caused a conversion into slowly sedimenting incomplete HA); (iv) a group-specific complement-fixing (CF) antigen devoid of HA activity; and (v) a rapidly sedimenting, trypsin-sensitive, complete HA, which in the electron microscope was found to represent a dodecahedral aggregate of 12 pentons (a dodecon).
(10) Ultracentrifugal and electron microscopic studies of human serum low-density lipoprotein (LDL) and several of its derivatives led to the formulation of a model in which the 20 protein subunits, probably globular, are arranged in a dodecahedral pattern with icosahedral symmetry.
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.