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  • 1
    Electronic Resource
    Electronic Resource
    Morphogenesis of human colon cancer cells with fetal rat mesenchymes in organ culture (1986)
    Springer
    Cellular and molecular life sciences 42 (1986), S. 312-315 
    Details
    ISSN: 1420-9071
    Keywords: Human colon cancer cells ; morphogenesis ; carcinoembryonic antigen ; secretory components ; organ culture
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The morphogenesis and cytodifferentiation of human colon cancer cells (LS174T and HT29) were examined by combining cancer cells with fetal rat digestive-tract mesenchyme in organ culture. LS174T cells migrated into the mesenchyme to form glandular structures composed of single columnar cells with their nuclei oriented basally, while HT29 cells formed cell masses with little lumen formation. Immunohistochemical studies with antibodies against carcinoembryonic antigen and secretory components showed that the composition of cell surface glycoproteins was not necessarily reversed to the normal type, even when neoplastic cells exhibited normal glandular structures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01942518
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  • 2
    Electronic Resource
    Electronic Resource
    Isolation and characterization of biologically active lectin from Korean mistletoe, Viscum album var. Coloratum (1999)
    Springer
    Cellular and molecular life sciences 55 (1999), S. 679-682 
    Details
    ISSN: 1420-9071
    Keywords: Key words. Korean mistletoe; mistletoe lectin II (ML II); concanavalin A chromatography; MALDI-TOF.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. A mistletoe lectin was isolated from water extracts of Korean mistletoe, a subspecies of Viscum album, grown on Quercus mongolica using CM-Sepharose chromatography followed by an affinity chromatography on a concanavalin A-Sepharose column. The compound proved to be a mistletoe lectin II with D-galactose and N-acetyl-D-galactosamine specificity. Matrix-assisted laser desorption time-of-flight mass spectroscopy showed it to have an average molecular mass of 62.7 kDa and to consist of two subunits of 30.6 kDa and 32.5 kDa. It was a basic protein with isoelectric points of 9.4 and 9.6 by capillary isoelectric focusing and was cytotoxic to Molt4 cell.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s000180050324
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  • 3
    Electronic Resource
    Electronic Resource
    Bifurcation and post-bifurcation phenomena of elastic-plastic circular tubes subjected to uniform shrinkage under plane strain condition (1989)
    Springer
    Computational mechanics 4 (1989), S. 211-218 
    Details
    ISSN: 1432-0924
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Bifurcation and post-bifurcation behaviors of thick-walled elastic-plastic circular tubes subjected to uniform shrinking are analyzed numerically under plane strain condition. Bifurcation analysis to determine the condition for onset of bifurcation away from the axisymmetric deformation is carried out within the framework for such analyses, due to Hill. The influence of the material properties and the dimensions of the tubes, upon the bifurcation behavior is clarified. In order to simulate the post-bifurcation behaviors of the tubes after the onset of surface type bifurcation, a finite element analysis of uniform compression of a block is performed under the plane strain condition. The localization of deformation into a narrow band induced by the nonlinear growth of surface undulation is clarified.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00296668
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  • 4
    Electronic Resource
    Electronic Resource
    Fast neutron activation analysis of rare-earth elements in monazite from Korea (1987)
    Springer
    Journal of radioanalytical and nuclear chemistry 114 (1987), S. 359-365 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The relative ans single comparator methods have been applied to determine 7 rare-earth elements and U, Th in Korean Monazites by 14.5 MeV neutron activation analysis. The (n, 2n) nuclear reactions are used for all elements except La, for which (n, p) reaction is used. Al is used as a flux monitor for the relative method and as a singlle comparator for the single comparator method. The analytical results obtained by the two methods agree well within 3% deviation except for Sm and Gd. These results are also compared with the result obtained by a single comparator method using reactor neutron.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02039811
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  • 5
    Electronic Resource
    Electronic Resource
    Biodegradation of the phenoxy herbicide MCPA by microbial consortia isolated from a rice field (1995)
    Springer
    Bulletin of environmental contamination and toxicology 55 (1995), S. 539-545 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00196033
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  • 6
    Electronic Resource
    Electronic Resource
    The interface between immiscible polymers in composite latexes: a small-angle x-ray scattering study employing contrast variation (1994)
    Springer
    Colloid & polymer science 272 (1994), S. 1380-1387 
    Details
    ISSN: 1435-1536
    Keywords: Small-angle x-ray scattering ; latex ; colloids ; contrast-variation ; emulsion polymerization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract An investigation of the radial structure of composite latex particles by small-angle x-ray scattering (SAXS) is given. Measurements at different contrasts were done by addition of sucrose to the dispersion medium water. The latex particles investigated here consist of a poly(styrene) core and a shell of poly(methylmethacrylate) and were prepared by seeded emulsion polymerization. Since the electron density of both polymers can be easily matched by concentrated sucrose solution, a full analysis of the radial electron density by contrast variation can be given. Depending on the mode of monomer addition during the second polymerization step a very sharp or a diffuse interface between the two incompatible polymers may result.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00654168
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  • 7
    Electronic Resource
    Electronic Resource
    Surface preparation effect of GaAs(110) substrates on the ZnSe epitaxial layer grown by molecular beam epitaxy (1999)
    Springer
    Applied physics 68 (1999), S. 627-629 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 61.72.-y; 68.55.-a; 68.55.Jk; 68.55.Jk
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. The effect of the surface preparation of the GaAs(110) substrate on the ZnSe epitaxial layer grown by molecular beam epitaxy (MBE) was investigated by means of etch-pit density (EPD) measurements, surface morphology observation, and reflection high-energy electron diffraction (RHEED) analysis. The ZnSe epitaxial layer grown on a GaAs(110) surface prepared by cleaving the (001)-oriented wafer in ultrahigh vacuum (UHV) showed about 5×104 cm-2 of EPD. This value is much lower than that observed from both the samples grown on the mechanically polished surface with and without a GaAs buffer layer. Due to the non-stoichiometric surface after thermal evaporation of the surface oxide, three-dimensional growth can easily occur on the mechanically polished GaAs(110) substrate. These results suggest that the stoichiometric and atomically flat substrate surface is essential for the growth of low-defect ZnSe epitaxial layers on the GaAs(110) non-polar surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390050951
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  • 8
    Electronic Resource
    Electronic Resource
    Physical principles in quantum field theory and in covariant harmonic oscillator formalism (1981)
    Springer
    Foundations of physics 11 (1981), S. 895-905 
    Details
    ISSN: 1572-9516
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract It is shown that both covariant harmonic oscillator formalism and quantum field theory are based on common physical principles which include Poincaré covariance, Heisenberg's space-momentum uncertainty relation, and Dirac's “C-number” time-energy uncertainty relation. It is shown in particular that the oscillator wave functions are derivable from the physical principles which are used in the derivation of the Klein-Nishina formula.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00727106
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  • 9
    Electronic Resource
    Electronic Resource
    Lorentz deformation and the jet phenomenon (1979)
    Springer
    Foundations of physics 9 (1979), S. 947-954 
    Details
    ISSN: 1572-9516
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract It is shown that the Lorentz-deformation property discussed in previous papers is consistent with the hadronic jet phenomenon in high-energy production processes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00708703
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  • 10
    Electronic Resource
    Electronic Resource
    Correspondence between the classical and quantum canonical transformation groups from an operator formulation of the wigner function (1994)
    Springer
    Foundations of physics 24 (1994), S. 873-884 
    Details
    ISSN: 1572-9516
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract An explicit expression of the “Wigner operator” is derived, such that the Wigner function of a quantum state is equal to the expectation value of this operator with respect to the same state. This Wigner operator leads to a representation-independent procedure for establishing the correspondence between the inhomogeneous symplectic group applicable to linear canonical transformations in classical mechanics and the Weyl-metaplectic group governing the symmetry of unitary transformations in quantum mechanics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02067652
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