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  • 1
    Electronic Resource
    Electronic Resource
    Effects of salmon prolactin and growth hormone on plasma osmolality, Na+ concentration and protein content in the saffron cod (1997)
    Springer
    Fish physiology and biochemistry 17 (1997), S. 289-293 
    Details
    ISSN: 1573-5168
    Keywords: saffron cod ; salmon prolactin ; salmon growth hormone ; plasma osmolality ; sodium concentration ; protein content antifreeze glycoprotein ; cold adaptation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In saffron cod, Eleginus gracilis, the antifreeze glycoprotein (AFGP) is present during the winter. The effects of salmon prolactin (sPRL) and growth hormone (sGH) on plasma osmolality, sodium concentration and protein content of the saffron cod were investigated. In the winter, plasma osmolality and protein content decreased following the intraperitoneal injection of sPRL (20 µg kg-1 day-1 × 3) but injection of the same dose of sGH had no effect on either plasma osmolality or protein content. In similar experiments performed during the summer, sPRL and sGH had no effect on these parameters. The results suggest that PRL may act on the kidney, possibly clearing antifreeze glycoprotein (AFGP) by increasing glomerular filtration. The possible role of PRL and GH in the disappearance of AFGP during the summer are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1007797906040
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  • 2
    Electronic Resource
    Electronic Resource
    Production of fullerenes by high-temperature pulsed arc discharge (1999)
    Springer
    The European physical journal 9 (1999), S. 369-372 
    Details
    ISSN: 1434-6079
    Keywords: PACS: 81.05.Tp Fullerenes and related materials; diamonds, graphite – 36.40.Ei Phase transitions in clusters – 82.30.-b Specific chemical reactions; reaction mechanisms
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. We have developed a high-temperature pulsed arc discharge apparatus, which can operate in a buffer gas heated up to 1000 °C, and have succeeded in producing fullerenes for the first time with this method. We have quantitatively analyzed the products, using high-performance liquid chromatography (HPLC), to estimate the concentration of fullerenes in soot. The results show that fullerenes are produced not at room temperature but at much higher temperatures such as 1000 °C for Ar. The concentration of fullerenes C70 and higher increases as the pulse width of the discharge increases. In the pulsed arc discharge, the negative electrode is consumed by the sputtering of buffer gas ions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530050458
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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