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  • Springer  (54)
  • Oxford University Press  (6)
  • 2000-2004  (37)
  • 1990-1994  (23)
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  • 1
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    Chlorinated Polycyclic Aromatic Hydrocarbons from Polyvinylchloride Combustion (2001)
    Springer
    Details
    Publication Date: 2001-03-01
    Print ISSN: 0007-4861
    Electronic ISSN: 1432-0800
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Published by Springer
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    PAPER CURRENT
  • 2
    Electronic Resource
    Electronic Resource
    On convergence rate of finite element eigenvalue analysis with mass lumping by nodal quadrature (1991)
    Springer
    Computational mechanics 8 (1991), S. 249-256 
    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 Error bounds are obtained for the finite element eigenvalue analysis using the diagonal mass matrix lumped by nodal quadrature. Finite element results of various two-dimensional 2nd order eigenvalue problems and a one-dimensional 4th order eigenvalue problem are compared favorably with the theoretical predictions. Estimates of error bounds, particularly those for eigenvalues, are significantly improved over the existing results, and their range of applicability is broadened. Special attention has been focused on the cases where shape functions have incomplete polynomials.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00577378
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    How does the toad's visual system discriminate different worm-like stimuli? (1991)
    Springer
    Biological cybernetics 64 (1991), S. 251-261 
    Details
    ISSN: 1432-0770
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Computer Science , Physics
    Notes: Abstract Behavioral experiments show that toads exhibit stimulus- and locus-specific habituation. Different worm-like stimuli that toads can discriminate at a certain visual location form a dishabituation hierarchy. What is the neural mechanism which underlies these behaviors? This paper proposes that the toad discriminates visual objects based on temporal responses, and that discrimination is reflected in different average neuronal firing rates at some higher visual center, hypothetically anterior thalamus. This theory is developed through a large-scale neural simulation which includes retina, tectum and anterior thalamus. The neural model based on this theory predicts that retinal R2 cells play a primary role in the discrimination via tectal small pear cells (SP) and R3 cells refine the feature analysis by inhibition. The simulation demonstrates that the retinal response to the trailing edge of a stimulus is as crucial for pattern discrimination as the response to the leading edge. The new dishabituation hierarchies predicted by this model by reversing contrast and shrinking stimulus size need to be tested experimentally.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00201986
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Charge analysis on lightning discharges to the ground in Chinese inland plateau (close to Tibet) (2000)
    Springer
    Annales geophysicae 18 (2000), S. 1340-1348 
    Details
    ISSN: 0992-7689
    Keywords: Meterology and atmospheric dynamics (atmospheric electricity; convective processes; lightning)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Since the summer of 1996, scientists from China and Japan have conducted a joint observation of natural cloud-to-ground lightning discharges in the Zhongchuan area that is located close to Qinghai-Xizang (Tibet) Plateau, China. It has been found that the long-duration of intracloud discharge processes, just before the first return stroke, lasted more than 120 ms for 85% of cloud-to-ground flashes in this area, with a mean duration of 189.7 ms and a maximum of 300 ms. We present the results of charge sources neutralized by four ground flashes and two intracloud discharge processes, just before the first return stroke, by using the data from a 5-site slow antenna network synchronized by GPS with 1 μs time resolution. The result shows that the altitudes of the neutralized negative charge for three negative ground flashes were between 2.7 to 5.4 km above the ground, while that of neutralized positive charges for one positive ground flash and one continuing current process were at about 2.0 km above the ground. The comparison with radar echo showed that the negative discharges initiated in the region greater than 20 dBZ or near the edge of the region with intense echoes greater than 40 dBZ, while positive discharge initiated in the weak echo region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s00585-000-1340-z
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  • 5
    Electronic Resource
    Electronic Resource
    High-molecular-weight glutenin subunits in the Cylindropyrum and Vertebrata section of the Aegilops genus and identification of subunits related to those encoded by the Dx alleles of common wheat (2000)
    Springer
    Theoretical and applied genetics 101 (2000), S. 879-884 
    Details
    ISSN: 1432-2242
    Keywords: Key words HMW glutenins ; Aegilops tauschii ; Cylindropyrum ; Vertebrata
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  The high-molecular-weight (HMW) glute-nin subunit composition of seven species from the Cylindropyrum and Vertebrata sections of the Aegilops genus was studied using SDS-PAGE and Western blot analysis. Two subunits were detected in Ae. caudata and three in Ae. cylindrica. In both species, subunits showing electrophoretic mobility similar to that of 1Dx2 were present. Western blot analysis using a monoclonal antibody (IFRN 1602) specific for the 1Ax and 1Dx subunits of bread wheat showed that the 1Dx-like subunit of Ae. caudata gave only a weak reaction. This indicates that Ae. caudata expresses subunits which are more distantly related to the 1Dx subunits. Two subunits were detected in each of the 60 accessions of Ae. tauschii, including several 1Dtx subunits showing different electrophoretic mobilities from those of the 1Dx subunits commonly found in bread wheat. All of the 1Dtx subunits reacted strongly with IFRN 1602, confirming their close relationship to the 1Dx subunits of bread wheat. Three subunits were found in Ae. crassa (6 x), four in Ae. ventricosa and Ae. juvenalis and five in Ae. vavilovii. In these four species, the subunits that showed electrophoretic mobility similar, or close, to that of 1Dx2 all reacted with IFRN 1602. In addition, Ae. ventricosa contained a subunit showing electrophoretic mobility slower than that of 1Dx2.2, which also reacted with IFRN 1602. These results suggest that the D-genome component in the multiploid Aegilops species express at least one HMW glutenin subunit that is structurally related to the 1Dx subunits of bread wheat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220051556
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  • 6
    Electronic Resource
    Electronic Resource
    QTL analysis of flower and fruit traits in sour cherry (2000)
    Springer
    Theoretical and applied genetics 100 (2000), S. 535-544 
    Details
    ISSN: 1432-2242
    Keywords: Key words Prunus cerasus ; QTL ; Pseudo-testcross ; Molecular markers ; Polyploid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  The map locations and effects of quantitative trait loci (QTLs) were estimated for eight flower and fruit traits in sour cherry (Prunus cerasus L.) using a restriction fragment length polymorphism (RFLP) genetic linkage map constructed from a double pseudo-testcross. The mapping population consisted of 86 progeny from the cross between two sour cherry cultivars, Rheinische Schattenmorelle (RS)×Erdi Botermo (EB). The genetic linkage maps for RS and EB were 398.2 cM and 222.2 cM, respectively, with an average interval length of 9.8 cM. The RS/EB linkage map that was generated with shared segregating markers consisted of 17 linkage groups covering 272.9 cM with an average interval length of 4.8 cM. Eleven putatively significant QTLs (LOD 〉2.4) were detected for six characters (bloom time, ripening time, % pistil death, % pollen germination, fruit weight, and soluble solids concentration). The percentage of phenotypic variation explained by a single QTL ranged from 12.9% to 25.9%. Of the QTLs identified for the traits in which the two parents differed significantly, 50% had allelic effects opposite to those predicted from the parental phenotype. Three QTLs affecting flower traits (bloom time, % pistil death, and % pollen germination) mapped to a single linkage group, EB 1. The RFLP closest to the bloom time QTL on EB 1 was detected by a sweet cherry cDNA clone pS141 whose partial amino acid sequence was 81% identical to that of a Japanese pear stylar RNase.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050070
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  • 7
    Electronic Resource
    Electronic Resource
    Synthesis of flexible polyarylate by interfacial polycondensation (1994)
    Springer
    Journal of polymer research 1 (1994), S. 1-6 
    Details
    ISSN: 1572-8935
    Keywords: Polyarylate ; Bisphenol-A ; Terephthalic acid ; Ethylene glycol ; Interfacial polycondensation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Products with hydroxyl ends were synthesized from the esterification of bisphenol-A, terephthalic acid and ethylene glycol. These ester products were then used for synthesis of polyarylate by interfacial polycondensation. Not only the relative concentrations of reactants for esterification but also the conditions for interfacial polycondensation, such as the monomer ratio between two phases and the reaction time, play significant roles in affecting the properties of final products. Under proper synthesis conditions, the polyarylate formed could possess equivalent thermal characteristics and much higher impact strength in comparison with unmodified polyarylate due to the incorporation of flexible aliphatic segments from ethylene glycol. X-ray diffraction showed the existence of aliphatic segments would induce small degree of orderly alignment locally in structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01378588
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  • 8
    Electronic Resource
    Electronic Resource
    Template synthesis of the polypyrrole tube and its bridging in vivo sciatic nerve regeneration (2000)
    Springer
    Journal of materials science 19 (2000), S. 2157-2159 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1026799415199
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  • 9
    Electronic Resource
    Electronic Resource
    The relaxation behavior of thermal stress in a SiCw/Al composite (2000)
    Springer
    Journal of materials science 19 (2000), S. 1285-1286 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006794018451
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  • 10
    Electronic Resource
    Electronic Resource
    Synthesis of non-nucleotide ATP analogues and characterization of their chemomechanical interaction with muscle fibres (1993)
    Springer
    Journal of muscle research and cell motility 14 (1993), S. 484-497 
    Details
    ISSN: 1573-2657
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary To probe the substrate requirements for the actomyosin chemomechanical interaction, the effects of a series of eight new non-nucleotide ATP analogues on actomyosin-catalysed hydrolysis rates and on fibre mechanics have been investigated. These analogues have substitutions of new functional groups at the 2- and 4- positions of the ATP analogues, 2-[(4-azido-2-nitrophenyl)amino]ethyl triphosphate (NANTP), and 3-[(4-nitrophenyl)amino]propyl triphosphate (PrNANTP). Previous work has shown NANTP but not PrNANTP will support active tension and shortening in skinned muscle fibres in a manner almost identical to ATP. Here all 2- and 4- phenyl substituted analogues had myosin subfragment 1 (S1) NTPase hydrolysis rates higher than ATP and the rates were stimulated by addition of actin. In general, the replacement of the 4-azido group of NANTP with-H,-NO2 or-NH2 had small effects on fibre mechanics while replacement of 2-NO2 group with-H or-NH2 dramatically lowered the ability of the new analogues to support active tension and shortening. All PrNANTP-based analogues were ineffective in supporting active tension or shortening. We found no correlation between S1 or actoS1 NTPase rates and any mechanical parameters. However, for all analogues there was a strong correlation between the maximal velocity of shortening (V max) and isometric tension (P o). A three-state, chemomechanical model is proposed in which the analogues effect the transition rate into a strongly-bound, force-producing crossbridge state to account for this correlation. These studies identify 2-[(2-nitrophenyl)amino]ethyl triposphate as the chemically simplest ATP analogue which closely mimics the effect of ATP in skinned muscle fibres.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00297211
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