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  • 1
    Electronic Resource
    Electronic Resource
    Effect of electromagnetic radiation on alternating current losses in high-Tc superconductors (1993)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 8656-8658 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: This communication reports a relatively simple technique to measure the alternating current (ac) loss in superconductors and also determines the effect of electromagnetic radiation on the measurement of ac losses. The interaction of the electromagnetic radiation with the superconductor was found to increase the ac loss. The enhancement of ac loss has been explained on the basis of generation of additional charge carriers and their interaction with the lattice.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.353377
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  • 2
    Electronic Resource
    Electronic Resource
    AC losses in Y1Ba2Cu3O7−δ:Ag tapes (1993)
    Springer
    Journal of superconductivity 6 (1993), S. 387-389 
    Details
    ISSN: 1572-9605
    Keywords: Ac loss ; superconductor ; tape ; frequency dependence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract The frequency dependence of ac losses of a superconducting tape consisting of Y1Ba2Cu3O7-δ material in a silver sheath was measured from 50 Hz to 50 kHz using a four-probe technique developed and reported earlier. Contrary to expectation, the ac losses were found to have a frequency-independent regime in the loss spectrum. A tentative explanation has been offered to account for the frequency-independent loss.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00617976
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  • 3
    Electronic Resource
    Electronic Resource
    Cadmium toxicity in fishes (1980)
    Springer
    Hydrobiologia 75 (1980), S. 117-121 
    Details
    ISSN: 1573-5117
    Keywords: Acid phosphatase ; alkaline phosphate ; β-D-glucuronidase ; glucose-6-phosphatase ; glucose ; glycogen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Cadmium from industrial effluents pollutes sea and river water and hence may effect the fish population therein. The present investigation shows that resistivity is greater in case of air-breathing fishes as compared to non air-breathing fishes with regards to their duration of survival and growth when exposed to a cadmium containing environment. Under sub-acute levels of cadmium exposure, they respond differently so far as the activities of their liver, gill and intestinal lysosomal enzymes are concerned. Though both species show a definite stress condition on cadmium exposure, the two anatomically different fishes respond differently towards carbohydrate metabolism as observed from liver and muscle glycogen content, liver microsomal glucose-6-phosphatase activity and serum glucose level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00007424
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Toxicity of mercury: A comparative study in air-breathing and non air-breathing fish (1980)
    Springer
    Hydrobiologia 68 (1980), S. 225-229 
    Details
    ISSN: 1573-5117
    Keywords: mercury toxicity ; acid phosphatase ; alkaline phosphatase ; β-D-glucuronidase ; glucose-6-phosphatase ; gel electrophoresis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In a mercury polluted environment, air-breathing fishes are more resistant towards mercury toxicity than the non air-breathing fishes as regards their duration of survival and growth. Under sub-acute levels of mercury exposure, they respond differently in so far as the activities of their liver, gill and intestinal lysosomal enzymes and liver microsomal enzymes are concerned. Alteration in the levels of liver microsomal glucose-6-phosphatase, serum glucose and liver glycogen indicate that carbohydrate metabolism is impaired under the above experimental condition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00018830
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  • 5
    Electronic Resource
    Electronic Resource
    Regulation of tubulin by triiodothyronine in hypothyroid rat brain (1985)
    Springer
    Bioscience reports 5 (1985), S. 643-648 
    Details
    ISSN: 1573-4935
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The effect of T3 (triiodothyronine) on the induction of tubulin in hypothyroid developing rat brain has been examined using organ cultures of brains from late fetal, neonatal and postnatalrats. The neonatal brain displayed maximum sensitivity to T3. Hypothyroidism resulted in a 26% decline in the level of tubulin in the neonatal brain as opposed to a 5–15% decline in the fetal or postnatal brain. Exposure of the hypothyroi d neonatal brain to T3 for 2 h in culture led to a 61% rise in the level of tubulin in contrast to a 41% increase seen in the case of normal brain. Total protein synthesis was not significantly affected . The preferential decline of tubulin in the neonatal hypothyroid brain, its enhanced sensitivity to T3 compared to normal brain, and the coincidence of the period of sensitivity to that of brain maturation indicate that the regulation of the level of tubulin by T3 in the developing brain is a natural ontogenic phenomenon.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01116995
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