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  • 2005-2009
  • 1980-1984  (7)
  • 1983  (7)
  • 1
    Electronic Resource
    Electronic Resource
    Killing of bacteria during solar eclipse and its biological implications (1983)
    Springer
    Radiation and environmental biophysics 22 (1983), S. 235-238 
    Details
    ISSN: 1432-2099
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Notes: Summary Enhanced killing of bacteria was obtained by radiation reaching the earth during total solar eclipse (February 16, 1980) than during the corresponding time of a normal day (February 26, 1980). The killing was not due to the formation of sunlight induced photoproducts of tryptophan. The damage to the bacteria exposed to sunlight could be repaired by photoreactivation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01323714
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    C-band positive W chromosome in the female Indian frog (1983)
    Springer
    Cellular and molecular life sciences 39 (1983), S. 321-322 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary In the female Indian frog,Rana tigrina (2n=26; NF=52), the female is heterogametic. The heterochromosomes (ZW) are morphologically indistinguishable, but the W chromosome proves by C-banding analysis to be entierly heterochromatic.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01955327
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Production of emulsifying agent during growth of Pseudomonas cepacia with 2,4,5-trichlorophenoxyacetic acid (1983)
    Springer
    Archives of microbiology 135 (1983), S. 110-114 
    Details
    ISSN: 1432-072X
    Keywords: Emulsifying agent ; 2,4,5-Trichlorophenoxy-acetic acid ; Pseudomonas cepacia AC1100
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The culture supernatant of Pseudomonas cepacia (ATCC 39027) grown on 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) was found to contain an agent which can emulsify 2,4,5-T. The emulsion is stable for several hours. The emulsifying agent was produced in response to growth on 2,4,5-T, although some emulsification was observed in culture supernatant of glucose grown cells. The emulsifying agent is most active with 2,4,5-T but has some activity towards other chlorinated compounds such as chlorophenols. In growing culture the emulsifying agent adheres to the cell surface as a slimy layer. The emulsifying agent is believed to have a role in transport of 2,4,5-T into the cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00408018
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Effects of aging on atrial and ventricular human myosin (1983)
    Springer
    Basic research in cardiology 78 (1983), S. 685-694 
    Details
    ISSN: 1435-1803
    Keywords: human myosin ; ATPase ; aging ; atria ; ventricles
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Enzymatic and structural studies of human cardiac myosin from young and old subjects have been investigated to determine possible changes in myosin properties in aging hearts. Human ventricular myosin from old subjects (47–70 years old) has lower actin-activated ATPase activity than and increased alkaline sensitivity as compared to myosin from young subjects (1–132 months old). Ca2+-and K+ (EDTA)-ATPase activities, pyrophosphate gel patterns and one-dimensional peptide mapping of heavy chains of ventricular myosin from old subjects are similar to those observed for myosin from young subjects. Atrial myosin from human hearts differs significantly from ventricular myosin in that the Ca2+-, Mg2+- and actin-activated myosin Mg2+-ATPase activities of atrial myosin are significantly higher than those of ventricular myosin. Pyrophosphate gel electrophoresis patterns and peptide mapping of heavy chains of atrial myosin are also different from those of ventricular myosin. Unlike ventricular myosin, atrial myosin from young hearts is similar to that of atrial myosin from old hearts in its enzymatic and structural properties.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01907216
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Coupling strengths of weak neutral currents from leptonic final states at 22 and 34 GeV (1983)
    Springer
    The European physical journal 16 (1983), S. 301-305 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Differential cross sections fore +e−→e +e−, τ+, τ- measured with the CELLO detector at $$\left\langle {\sqrt s } \right\rangle = 34.2GeV$$ have been analyzed for electroweak contributions. Vector and axial vector coupling constants were obtained in a simultaneous fit to the three differential cross sections assuming a universal weak interaction for the charged leptons. The results,v 2=−0.12±0.33 anda 2=1.22±0.47, are in good agreement with predictions from the standardSU(2)×U(1) model for $$\sin ^2 \theta _w = 0.228$$ . Combining this result with neutrino-electron scattering data gives a unique axial vector dominated solution for the leptonic weak couplings. Assuming the validity of the standard model, a value of $$\sin ^2 \theta _w = 0.21_{ - 0.09}^{ + 0.14}$$ is obtained for the electroweak mixing angle. Additional vector currents are not observed (C〈0.031 is obtained at the 95% C.L.).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01577097
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  • 6
    Electronic Resource
    Electronic Resource
    Inclusive γ-production in $$\bar pp$$ interactions at 0.76 and 2.0 GeV/c (1983)
    Springer
    The European physical journal 17 (1983), S. 203-210 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The inclusive production of photons in $$\bar pp$$ interactions has been studied at incident momenta of 0.76 and 2.0 GeV/c. The inclusive cross sections for γ-production and the average multiplicities of γ, «n γ», are presented as a function of the charged prong topology. Results on the two particle correlation parametersf 00 andf −0 are presented. The inclusive distributions of the Feynman variablex and of the transverse momentump T of the photons are compared with the expectations from charged pion distributions on the basis of charge independence. A search has been made for direct γ-production in $$\bar pp$$ interactions at 0.76 GeV/c by looking for events which fit uniquely the hypothesis $$\bar pp \to m\pi ^ + + m\pi ^ - + \gamma $$ . An estimate of the ratio $$R = \frac{{\sigma (\bar pp \to m\pi ^ + + m\pi ^ - + \gamma )}}{{\sigma (\bar pp \to m\pi ^ + + m\pi ^ - + \pi ^0 )}}$$ is given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01578146
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  • 7
    Electronic Resource
    Electronic Resource
    On the partial mercerization and crimp development in jute fiber (1983)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Letters Edition 21 (1983), S. 263-270 
    Details
    ISSN: 0360-6384
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1983.130210406
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