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  • 1975-1979  (16)
Source
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Biosynthesis of uroporphyrinogen III from porphobilinogen. Resolution of the enigmatic "switch" mechanism (1976)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 98 (1976), S. 1589-1591 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00422a057
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  • 2
    Electronic Resource
    Electronic Resource
    Putative Peptide Neurotransmitters (1977)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Pharmacology 17 (1977), S. 425-439 
    Details
    ISSN: 0362-1642
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.pa.17.040177.002233
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  • 3
    Electronic Resource
    Electronic Resource
    MODIFICATIONS IN SOLUBLE PROTEIN KINASE AND CYCLIC-AMP BINDING CAPACITY OF DEVELOPING RAT BRAIN (1975)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 24 (1975), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Histone and casein phosphoprotein-kinase activities were determined in rat brain soluble fraction at various stages of development.Cyclic AMP-independent or basal histone kinase activity increased, whereas cyclic AMP-dependent activity decreased in whole soluble fraction with the age. On the contrary, whole soluble cyclic AMP-dependent and -independent casein kinases activities did not show any difference during development.The percentage of activation by cyclic AMP of histone kinase activity and [3H] cyclic-AMP binding activity in the soluble fraction decreased markedly during development.By DEAE-cellulose chromatography the histone kinase was separated mainly into 4 peaks; the fourth peak was strongly stimulated by cyclic AMP. Stimulation by cyclic AMP was higher in the 4-day-old rat brains than in the 9- and 30-day-old. In the 9-day-old rats the ratio of cyclic AMP-dependent histone kinase in respect to the cyclic AMP-independent enzyme was higher than in 4- and 30-day-old rats.Casein kinase activities in the brains of 9- and 30-day-old rats were separated by DEAE-cellulose chromatography into three peaks of which the third one was stimulated by cyclic AMP. Little, if any, difference was observed for casein kinase during the development. These results suggest that brain histone and casein kinase are different enzymes:
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1975.tb11880.x
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  • 4
    Electronic Resource
    Electronic Resource
    Die Kristallstruktur von LaCrS3 (1977)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 33 (1977), S. 3437-3443 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567740877011157
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  • 5
    Electronic Resource
    Electronic Resource
    Einige Bemerkungen über die Einflüsse der Kettenlängenabhängigkeit von der Kopplungs-Geschwindigkeitskonstante von Polystyrol-Radikalen auf die Molekulargewichtsverteilung und die Polymerisationskinetik (1975)
    Springer
    Colloid & polymer science 253 (1975), S. 348-348 
    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
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02352204
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  • 6
    Electronic Resource
    Electronic Resource
    Bestimmung der Ladungsdichte-Verteilung von Polyelektrolyten durch Elektrophorese (1978)
    Springer
    Colloid & polymer science 256 (1978), S. 396-396 
    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
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01544437
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  • 7
    Electronic Resource
    Electronic Resource
    High oxide ion conduction in sintered oxides of the system Bi2O3-Y2O3 (1975)
    Springer
    Journal of applied electrochemistry 5 (1975), S. 187-195 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The ionic conduction in sintered Bi2O2-Y2O3 was investigated by measuring the conductivity and the emf of an oxygen concentration cell using the specimen tablet as electrolyte. The face centred cubic phase in this system was found to show high oxide ion conduction accompanied by a little electronic conduction when exposed to air. This phase was stable with a composition of 25 ∼ 43 mol % Y2O3 over a wide range of temperatures, and the oxide ion conductivity increased with decrease in Y2O3. The conductivities of (Bi2O3)0.75 (Y2O3)0.25 were 1.6×10−1 Ω−1 cm−1 at 700°C and 1.2×10−2 Ω−1 cm−1 at 500°C values which are many times higher than those of stabilized zirconia (ZrO2)0.90(Y2O3)0.10 at corresponding temperatures. Specimens containing less than 25 mol % Y2O3 showed a phase transition at 700 ∼ 580°C and the conductivities decreased remarkably below these temperatures. High oxide ion conduction in the fcc phase is attributed to the migration of oxide ion vacancies which were present in an appreciable amount.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01637268
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  • 8
    Electronic Resource
    Electronic Resource
    High oxide ion conduction in the sintered oxides of the system Bi2O3-Gd2O3 (1975)
    Springer
    Journal of applied electrochemistry 5 (1975), S. 197-202 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract In order to characterize the conduction behaviour in the sintered oxides of the system Bi2O2-Gd2O3, the electrical conductivity in air and the emf of the oxygen concentration cell were measured. The new rhombohedral phase found in this system exhibited high oxide ion conduction especially at relatively high oxygen pressure. The rhombohedral phase was stable in the composition range between 10 and 30 mol% Gd2O3 below 600° C and was transformed into the face-centred cubic phase with rising temperature, the conduction in which was by oxide ion as in the rhombohedral phase. At concentrations greater than 35 mol% Gd2O3, the fcc phase was stable over a wide range of temperature (∼900° C) and kept its high oxide ion conduction. The conductivities of rhombohedral (Bi2O3)0.90(Gd2O3)0.10 and fcc (Bi2O3)0.65(Gd2O3) 0.35 * are 4.5 and 2.4×10−2 cm−1 at 600°C, respectively. These are about one order of magnitude higher than that of the well-known yttria-stabilized zirconia at corresponding temperatures. High-oxide ion-conduction in the rhombohedral and fcc phase was considered to be due to the appreciable numbers of oxide ion vacancies in these crystals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01637269
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  • 9
    Electronic Resource
    Electronic Resource
    Oxide ion conduction in the sintered oxides of MoO3-doped Bi2O3 (1977)
    Springer
    Journal of applied electrochemistry 7 (1977), S. 31-35 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract In order to examine the conduction behaviour in the sintered oxides of MoO3-doped Bi2O3, the electrical conductivity in air and the EMF of oxygen gas concentration cell were measured with respect to the phase relation determined by X-ray diffraction. The tetragonal single phase oxide containing 22 mol% MoO3 was found to be a high oxide ion conductor, the conductivity of which was comparable to those of stabilized zirconias. The partial electronic conduction in this phase was negligibly small at relatively high oxygen pressure. The oxide ion conduction was considered to be attributable to an appreciable amount of oxygen vacancies present in the crystal. In the monoclinic compound 3Bi2O3·2MoO3, the oxide ion conduction was also observed. Although the conductivity of this phase was somewhat lower than that of the tetragonal phase, the activation energy for conduction (53·5 kJ mol−1) was much lower than the values for usual oxide ion conductors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00615527
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  • 10
    Electronic Resource
    Electronic Resource
    Solid-state ionics-solid electrolyte cells with copper ion conductors (1977)
    Springer
    Journal of applied electrochemistry 7 (1977), S. 37-43 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract A solid electrolyte cell has been developed using a high copper ion conductivity solid electrolyte, 7CuBr·C6H12N4CH3Br, a copper anode, and a chalcogen cathode. The open-circuit voltages of the cells with sulphur, selenium, and tellurium as cathode materials were 0·448, 0·373, and 0·258 V, respectively, at 25° C. These cells yielded a current of several tens of microamperes at room temperature and several milliamperes at 114° C without appreciable polarization. An energy density of 4.5 Wh kg−1 at room temperature was evaluated from the weights of the electrolyte and electrode materials for the cell using a selenium cathode in the discharge current density range 60–150μA cm−2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00615528
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