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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 906-906 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The negative sign is not quite certain. It is derived from the observation that the component of shorter wave-length appears to be the stronger. We are attempting to confirm this by further experiments. From the theory of shell structure, Goeppert Mayer2 predicts a spin of either % or 9/2 for the ...
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 46 (1968), S. 1249-1253 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Regression of osteitis fibrosa has been observed in a uremic patient after hemodialysis for six months. The exchangeable calcium was found to be 3.15 meq/kg and bone accretion rate 0.61 meq/kg/day in a control group of uremic patients without osteitis fibrosa under chronic hemodialysis. In contrast both values were markedly higher in the above patient with osteitis fibrosa and a control patient with osteitis (exchangeable calcium 10.3 meq/kg and 8.34 meq/kg; accretion rate 6.18 and 6.92 meq/kg/day). After hemodialysis for six months the exchangeable calcium of the patient decreased by 49.5% and his accretion rate by 35%. His intestinal absorption was high (60%) in contrast to uremic controls (35.5%). When measuring the regional distribution of47Ca in a body-counter the maximum of activity was found in the head-region in cases with osteitis fibrosa. This was shown to be due to rapid uptake of activity by the bones of the skull. Parathyroid hormone levels and serum hydroxyprolin were markedly increased, ultrafiltrable calcium was unchanged.
    Notes: Zusammenfassung Bei einem urämischen Patienten wurde die Rückbildung einer Ostitis fibrosa unter chronischer Hämodialyse beobachtet. Austauschbares Calcium (10,3 mÄq/kg bzw. 8,34 mÄq/kg) und Knocheneinbaurate (6,8 mÄq/kg/die bzw. 6,92 mÄq/kg/die) waren bei dem Patienten (und einem Kontrollpatienten mit renaler Ostitis fibrosa) deutlich erhöht. Nach Dialysebehandlung und Gabe von Aludrox verringerte sich das austauschbare Calcium um 49,5% und die Einbaurate um 35%. In einer Kontrollgruppe von Patienten mit terminaler Niereninsuffizienz unter Dauerdialyse wurde demgegenüber ein austauschbares Calcium 3,15 mÄq/kg und eine Knocheneinbaurate von 0,61 mÄq/kg gefunden. Das Maximum der im Ganzkörperprofil gefundenen Aktivitätsverteilung von47Ca — gemessen im Ganzkörperzähler — war bei den Patienten mit renaler Ostitis fibrosa kopfwärts verschoben; mit87mSr ließ sich die Anreicherung der Aktivität in den Schädelknochen nachweisen. Die Calcium-Absorption war bei dem Patienten (60%) deutlich höher als bei der urämischen Kontrollgruppe (35,5%). Die Serumparathormonspiegel und Serumhydroxyprolinspiegel waren bei renaler Ostitis fibrosa deutlich erhöht, das ultrafiltrable Calcium unverändert.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 52 (1965), S. 12-13 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 53 (1966), S. 359-359 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 1018-1020 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The distillations were carried out in empty tube columns, consisting of a great number of narrow, unpacked parallel working tubes with individual reflux1. All distillations were carried out at 34-6- C. using very high reflux ratios. Samples withdrawn from the head and the bottom of the column were ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 7 (1951), S. 36-38 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 25 (1969), S. 972-973 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Crystals of carotene in plant cells (carrot root, corona ofNarcissus etc.) have been attributed to the orthorhombic or the hexagonal system. However, an optical investigation showed that they have a lower symmetry. In the case of the crystals in the corona ofNarcissus, the structural identity with syntheticβ-carotene is proved by X-ray and electron diffraction analysis. Although the geometry of the electron diffraction patterns is almost indistinguishable from hexagonal, its reflections can be identified with those from the planes of the monoclinic lattice ofβ-carotene. The face of the plate-shaped crystals corresponds to (102).
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 10 (1954), S. 518-520 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Pflügers Archiv 290 (1966), S. 56-69 
    ISSN: 1432-2013
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die Blutgefäße des Rete mirabile und der Gasdrüse in der Schwimmblase von Fischen stellen ein Haarnadelgegenstromsystem (hgs) dar. Dies zusammen mit der Milchsäureproduktion in der Gasdrüse genügt für ein Verständnis der CO2- und der Sauerstoffkonzentrierung in der Schwimmblase. Mit Hilfe einer Modellanordnung, bestehend aus einem hgs, das mit Hämoglobinlösung durchströmt und an dessen Scheitel den Lösungen Milchsäure zugesetzt wird, wird eine Gaskonzentrierung diskutiert und experimentell nachgewiesen.
    Notes: Summary The blood vessels of the rete mirabile and the gasgland in the swimbladder of fishes represent a hairpin-countercurrent system (hgs). This fact together with the production of lactic acid in the gasgland allows to understand the generation of high CO2- and oxygen-pressures in the swimbladder. On the basis of a modelarrangement consisting of a hgs, which is perfused with hemoglobin solutions and to which is added lactic acid on the vertex, the generation of high gas pressures is discussed and experimentally verified.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 97 (1966), S. 1448-1451 
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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