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  • 1
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    Strategic noise map of a major road carried out with two environmental prediction software packages (2009)
    Springer
    Details
    Publication Date: 2009-03-20
    Print ISSN: 0167-6369
    Electronic ISSN: 1573-2959
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer
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    PAPER CURRENT
  • 2
    Electronic Resource
    Electronic Resource
    Electrochemical production of cuprous oxide and metallic nickel in a two-compartment cell (1994)
    Springer
    Journal of applied electrochemistry 24 (1994), S. 542-547 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The purpose of the present investigation was to develop an electrochemical process to obtain simultaneously cuprous oxide powder and metallic nickel in a two-compartment cell. Nafion® 901 bimembrane (Dupont, USA) was employed to separate the compartments to avoid the diffusion of nickel ions from the catholyte to the anolyte. A continuous addition of sodium hydroxide solution to the anodic compartment was necessary to form in situ the cuprous oxide by chemical reaction with the cuprous chlorocomplexes generated at the anode. As an anode system, a titanium basket filled with copper scrap wire was utilized. The anodic operating conditions were: NaCl 250 g dm−3, pH 10, 80°C, c.d. 6 A dm−2 and current concentration 0.4 A dm−3, The cathodic parameters were: Ni2i 74 g dm−3, H3B0330 g dm−3, sodium lauryl sulphate 0.5 g dm−3, coumarin 0.15 g dm−3, pH2, 50°C, c.d. 6 A dm−2 Good quality red-violet cuprous oxide powder, meeting ASTM specifications D912-65 to be used in antifouling paints and metallic nickel (〉 99.96% Ni) was obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00249855
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  • 3
    Electronic Resource
    Electronic Resource
    A new sterol from the spongeHaliclona chilensis (Thiele) (1985)
    Springer
    Cellular and molecular life sciences 41 (1985), S. 34-35 
    Details
    ISSN: 1420-9071
    Keywords: Sponge ; Haliclona chilensis ; 24-keto-cholesta-5,25-dien-3β-ol ; sterol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary From the spongeHaliclona chilensis (Thiele) a minor keto-sterol was isolated and characterized as 24-keto-cholesta-5,25-dien-3β-ol by means of spectroscopic (1H and13C-FT NMR, MS) methods.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02005858
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  • 4
    Electronic Resource
    Electronic Resource
    On the finding of a mass occurrence of Serpula narconensis Baird, 1885 (Polychaeta, Serpulidae) in South Georgia (Antarctica) (1999)
    Springer
    Polar biology 22 (1999), S. 379-383 
    Details
    ISSN: 1432-2056
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A new “reef ” of the serpulid polychaete Serpula narconensis Baird, 1885 is reported from the South Georgia Island shelf. This particular mass occurrence is the second serpulid “reef” reported in the Antarctic region. Its location, at 91- to 105-m depth, is very different from those serpulid reefs previously reported, usually sited at intertidal zone or at low depth, and this may be one of the largest, if not the largest, serpulid reef in the world.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003000050432
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  • 5
    Electronic Resource
    Electronic Resource
    Asymptotic behaviour of a Brownian motion on exterior domains (2000)
    Springer
    Probability theory and related fields 116 (2000), S. 303-316 
    Details
    ISSN: 1432-2064
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract. We study the asymptotic behaviour of the transition density of a Brownian motion in ?, killed at ∂?, where ? c is a compact non polar set. Our main result concern dimension d = 2, where we show that the transition density p ? t (x, y) behaves, for large t, as u(x)u(y)(t(log t)2)−1 for x, y∈?, where u is the unique positive harmonic function vanishing on (∂?) r , such that u(x) ∼ log ∣x∣.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004400050251
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  • 6
    Electronic Resource
    Electronic Resource
    Phase transition for absorbed Brownian motion with drift (1997)
    Springer
    Journal of statistical physics 86 (1997), S. 213-231 
    Details
    ISSN: 1572-9613
    Keywords: Absorbed Brownian motion ; quasistationary distributions ; conditioned Brownian motion with drift
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We study one-dimensional Brownian motion with constant drift toward the origin and initial distribution concentrated in the strictly positive real line. We say that at the first time the process hits the origin, it is absorbed. We study the asymptotic behavior, ast→∞, ofm t , the conditional distribution at time zero of the process conditioned on survival up to timet and on the process having a fixed value at timet. We find that there is a phase transition in the decay rate of the initial condition. For fast decay rate (subcritical case)m t is localized, in the critical casem t is located around $$\sqrt t$$ , and for slow rates (supercritical case)m t is located aroundt. The critical rate is given by the decay of the minimal quasistationary distribution of this process. We also study in each case the asymptotic distribution of the process, scaled by $$\sqrt t$$ , conditioned as before. We prove that in the subcritical case this distribution is a Brownian excursion. In the critical case it is a Brownian bridge attaining 0 for the first time at time 1, with some initial distribution. In the supercritical case, after centering around the expected value—which is of the order oft—we show that this process converges to a Brownian bridge arriving at 0 at time 1 and with a Gaussian initial distribution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02180205
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  • 7
    Electronic Resource
    Electronic Resource
    Partial trisomy for the long arm of chromosome 7. Case report and review (1982)
    Springer
    Human genetics 〈Berlin〉 62 (1982), S. 378-381 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary We reviewed partial trisomy of the long arm of chromosome 7 after a new case was brought to our attention. The clinical differences between the various types of trisomies 7q were evaluated by statistical analysis, and three groups were defined. These groups correspond to the segments q22 or q21»q31, q31»qter, and q32»qter, and would seem to represent three different syndromes, of which one is more serious than the other two.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00304563
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  • 8
    Electronic Resource
    Electronic Resource
    Validation of a high-performance chromatographic method for determination of cefotaxime in biological samples (1999)
    Springer
    Fresenius' journal of analytical chemistry 363 (1999), S. 289-293 
    Details
    ISSN: 1432-1130
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract An analytical method for detecting and quantifying cefotaxime in plasma and several tissues is described. The method was developed and validated using plasma and tissues of rats. The samples were analyzed by reversed phase liquid chromatography (HPLC) with UV detection (254 nm). Calibration graphs showed a linear correlation (r 〉 0.999) over the concentration ranges of 0.5–200 μg/mL and 1.25–25 μg/g for plasma and tissues, respectively. The recovery of cefotaxime from plasma standards prepared at the concentrations of 25 μg/mL and 100 μg/mL was 98.5 ± 3.5% and 101.8 ± 2.2%, respectively. The recovery of cefotaxime from tissue standards of liver, fat and muscle, prepared at the concentration of 10 μg/g was: 89.8 ± 1.2% (liver), 103.9 ± 6.5% (fat) and 97.8 ± 2.1% (muscle). The detection (LOD) and quantitation (LOQ) limits for plasma samples were established at 0.11 μg/mL and 0.49 μg/mL, respectively. The values of these limits for tissues samples were approximately 2.5 times higher: 0.3 μg/g (LOD) and 1.25 μg/g (LOQ). For plasma samples, the deviation of the observed concentration from the nominal concentration was less than 5% and the coefficient of variation for within-day and between-day assays was less than 6% and 12%, respectively. The method was used in a pharmacokinetic study of cefotaxime in the rat and the mean values of the pharmacokinetic parameters are given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002160051190
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  • 9
    Electronic Resource
    Electronic Resource
    Transitive actions of semigroups in semi-simple Lie groups (1999)
    Springer
    Semigroup forum 58 (1999), S. 142-151 
    Details
    ISSN: 1432-2137
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: G be a connected semi-simple Lie group with finite center and S⊂G a semigroup with interior points. It is proved that S is transitive on a homogenous space G/L only if the action of L on B is minimal and contracting, where B=G/Pis the flag manifold of G asssociated with S. In [5, Thm.6.4] the authors claimed another necessary condition in case G is simple, namely, that L is discrete. It is shown by means of an example that this condition is wrong without the further assumption that G/L is compact.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002339900004
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  • 10
    Electronic Resource
    Electronic Resource
    General change of variable formulas for semimartingales in one and finite dimensions (1993)
    Springer
    Probability theory and related fields 97 (1993), S. 363-381 
    Details
    ISSN: 1432-2064
    Keywords: 60H05 ; 60G44 ; 60G07 ; 60H10 ; 60H20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Summary A general one dimensional change of variables formula is established for continuous semimartingales which extends the famous Meyer-Tanaka formula. The inspiration comes from an application arising in stochastic finance theory. For functions mapping ℝ n to ℝ, a general change of variables formula is established for arbitrary semimartingales, where the usualC 2 hypothesis is relaxed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01195071
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