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  • Articles: DFG German National Licenses  (13)
  • 1980-1984  (13)
Source
  • Articles: DFG German National Licenses  (13)
Material
Years
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Palladium(II) complexes containing the tripodal ligand tris(2-(dimethylamino)ethyl)amine (trenMe6) (1983)
    s.l. : American Chemical Society
    Inorganic chemistry 22 (1983), S. 1607-1610 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic00153a009
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Polymerization of acrylamide initiated by Ce4+/L-cysteine redox system (1980)
    Springer
    Colloid & polymer science 258 (1980), S. 954-959 
    Details
    ISSN: 1435-1536
    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: Summary The polymerization of acrylamide initiated by Ce 44+/L-cysteine redox system has been studied at 35 ± 0.2 °C in dark under nitrogen atmosphere. The effect of monomer,L-cysteine, Ce4+ and sulphuric acid concentration and temperature on the rate of polymerization has been studied. The rate may be expressed by the following equation:R p α[M] [Ce4+]0.5 [Cysteine]0.44 The overall energy of activation is 4.78 kcal/deg/mole in the investigated range of temperature 30–50 °C. Molecular weight of the polymer is independent of catalyst concentration but increases with increasing monomer concentration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01584927
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Rheological study of black coal-oil suspensions (1984)
    Springer
    Rheologica acta 23 (1984), S. 195-206 
    Details
    ISSN: 1435-1528
    Keywords: Black coal ; oil ; suspension ; ageing ; power-law model
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Abstract The rheological study of coal-oil suspensions is very important because of their application in many industries as alternative fuels to petroleum oil. In this work, the flow behaviour of black coal-oil suspension was studied for a range of coal volume fractions from 0.0378 to 0.427. Shear stresses were measured for shear rates up to 200 s−1 using a Weissenberg Rheogoniometer. All the suspensions behaved like non-Newtonian liquids and exhibited significant increases in apparent viscosity on storage. The flow behaviour of both freshly prepared and aged suspensions was able to be described by power-law models. A model similar to that given by Chong was used to establish relation between the relative apparent viscosity and coal volume fraction for freshly prepared as well as all aged suspensions. A correlation was also established between ageing time and maximum coal volume fraction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01332075
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    The imaginary part of the nucleon-nucleus optical potential (1983)
    Springer
    The European physical journal 313 (1983), S. 99-103 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Volume integrals of the imaginary part of the proton and the neutron optical potentials obtained from the existing phenomenological analyses for the mass number range of 12–209 and for a range of nucleon energies (E p =10–180 MeV,E n =8–150 MeV) have been fitted with an empirical expression. The isoscalar, the isovector and the Coulomb components determined empirically have been compared with those obtained from the microscopic approach. Though there is qualitative agreement between the two predictions, there are differences when compared quantitatively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02115847
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Ising model on self-avoiding walk chains (1984)
    Springer
    The European physical journal 57 (1984), S. 151-155 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The phase transitions of nearest-neighbour interacting Ising models on self-avoiding walk (SAW) chains on square and triangular lattices have been studied using Monte Carlo technique. To estimate the transition temperature (T c) bounds, the average number of nearest-neighbours (Z eff) of spins on SAWs have been determined using the computer simulation results, and the percolation thresholds (p c) for site dilution on SAWs have been determined using Monte Carlo methods. We find, for SAWs on square and triangular lattices respectively,Z eff=2.330 and 3.005 (which compare very well with our previous theoretically estimated values) andp c=0.022±0.003 and 0.045±0.005. When put in Bethe-Peierls approximations, the above values ofZ eff givekT c/J〈1.06 and 1.65 for Ising models on SAWs on square and triangular lattices respectively, while, using the semi-empirical relation connecting the Ising modelT c's andp c's for the same lattices, we findkT c/J≳0.57 and 0.78 for the respective models. Using the computer simulation results for the shortest connecting path lengths in SAWs on both kinds of lattices, and integrating the spin correlations on them, we find the susceptibility exponent γ=1.024±0.007, for the model on SAWs on two dimensional lattices.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02071965
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Interrelationship between plasma and ovarian cholesterol in a teleost fish (1983)
    Springer
    Cellular and molecular life sciences 39 (1983), S. 427-428 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The profiles of plasma and ovarian cholesterol altered similarly as a result of seasonal influence. Fish pituitary extract and LH significantly depleted plasma and ovarian free cholesterol only, esterified cholesterol remaining unaltered. Findings indicated that plasma cholesterol was the primary source of sterol for ovarian steroidogenesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01963163
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Close genetic linkage between X-linked retinitis pigmentosa and a restriction fragment length polymorphism identified by recombinant DNA probe L1.28 (1984)
    [s.l.] : Nature Publishing Group
    Nature 309 (1984), S. 253-255 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] XLRP is one of the most severe clinical forms of RP, with onset in males in the first decade, progressing to blindness by the third or fourth decade6. Female carriers show a variable but generally mild degree of visual loss, which occurs much later than in males and is associated with ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/309253a0
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Benzodiazepines reduce stress-augmented increase in rat urine monoamine oxidase inhibitor (1981)
    [s.l.] : Nature Publishing Group
    Nature 292 (1981), S. 347-349 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Figure 1 shows that control urine samples from unstressed rats produced comparatively little MAO inhibition. Cold immobilization stress increased fivefold the degree of MAO inhibition induced by rat urine, with no concomitant effects on urinary pH or creatinine concentration. Pretreatment of rats ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/292347a0
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Applications of an inequality involving conditional expectations (1982)
    Springer
    Metrika 29 (1982), S. 129-133 
    Details
    ISSN: 1435-926X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract The object of the present paper is to discuss some applications of an inequality involving conditional and unconditional expectations of a monotone function. The fields of application are accident statistics, personnel selection and Bessel functions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01893372
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Salinity and temperature tolerance of juvenileMesopodopsis orientalis: laboratory studies (1982)
    Springer
    Hydrobiologia 93 (1982), S. 23-30 
    Details
    ISSN: 1573-5117
    Keywords: Mysidacea ; salinity tolerance ; temperature ; Mesopodopsis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Separate and combined effects of changes in salinity and water temperature on the survival of laboratory hatched juvenileMesopodsis orientalis were investifated. Full strength seawater (35‰) was not favorable to juvenile survival. Salinities down to 10% seawater were tolerated when subjected to sudden exposure, but salinity acclimation increased juvenile ability to tolerate even fresh water. Water temperatures tolerated by the animals ranged from 12°C to 33°C. Salinities of 30% to 60% seawater and water temperatures of 22°C to 28°C were most favorable to the juveniles. Experimental results were compared with field observations and a relationship between the salinity and temperature of seawater and abundance of juveniles in May to June, and November to January in Bombay coastal waters (west coast of India) was established. Seawater of reduced salinity was found to be a major factor for occurrence of juvenileM. orientalis in abundance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00008095
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    Paper (German National Licenses)
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