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  • Articles  (11)
  • Springer  (11)
  • 2010-2014
  • 1980-1984  (3)
  • 1920-1924  (8)
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  • Articles  (11)
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  • 1
    Electronic Resource
    Electronic Resource
    Die Adsorption des Formaldehydes durch Tierkohle (1921)
    Springer
    Colloid & polymer science 28 (1921), S. 127-132 
    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: Zusammenfassung 1. Formaldehyd wird durch Tierkohle sowohl in saurer als auch in neutraler Lösung in bedeutendem Maße adsorbierl. 2. Die Adsorption sowohl in neutralisierter als auch saurer Lösung folgt den Adsorptionsgesetzen, d. h. die Adsorption ist abhängig von der Konzentration. 3. Die Adsorption des Formaldehydes durch die Tierkohle in saurer Lösung ist ferner in weitgehenstem Maße von dem Volum abhängig. Aus großem Volum wird erheblich mehr, als aus kleinem Volum bei gleicher Konzentration adsorbiert. 4. In neutraler Lösung wird die Adsorption des Formaldehydes unabhängig von dem Volum und ist lediglich abhängig von der dargebotenen absoluten Menge des Formaldehydes bezw. der Konzentration. 5. Die Adsorption in neutraler Lösung ist unabhängig von der Zeit und tritt das Gleichgewicht nach kurzer Einwirkungsdauer ein. Die Adsorption aus saurer Lösung ist abhängig von der Zeit und tritt selbst nach 8 tägiger Einwirkung kein Gleichgewicht ein.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01427881
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  • 2
    Electronic Resource
    Electronic Resource
    Saturation and isotope mixing during low-temperature implantations of hydrogen into metals (1982)
    Springer
    Applied physics 27 (1982), S. 19-29 
    Details
    ISSN: 1432-0630
    Keywords: 61.70.Tm ; 61.70.Wp ; 61.80.Jh.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Deuterons of 10 keV energy and protons with the same mean projected range have been implanted into several metals at a temperature of approximately 35 K and at dose rates of approximately 2 × 1014 cm−2 s−1. The amount of retained deuterium saturates at fluences larger than roughly 2 × 1018 cm−2. After implantation of deuterons and subsequent bombardment with protons, the deuteron depth profiles show characteristic double peak structures, which indicate a replacement process. The experimental data are in good agreement with a simple model of local saturation and mixing. The possible implications of this model are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01197542
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  • 3
    Electronic Resource
    Electronic Resource
    Die Gerinnungserscheinungen in Gelatine-Chlornatriumlösungen (1921)
    Springer
    Colloid & polymer science 28 (1921), S. 281-290 
    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: Zusammenfassung 1. Es wurde der Gerinnungswert verdünnter, mit Chlornatrium gesättigter Gelatinelösungen durch Säuren ermittelt. 2. Der Gerinnungswert steigt mit dem Dissoziationsgrad der Säure und ist demnach bei anorganischen Säuren größer, wie bei organischen. 3. Das Maximum der Gerinnung der daran beteiligten Trockensubstanz der Gelatinelösung durch irgendeine Säure liegt bei einer ganz bestimmten Konzentration. 4. Neben der Gerinnung finden Adsorptionserscheinungen zwischen dem geronnenen Teil und der Säure in Verbindung mit den nicht der Gerinnung fähigen Anteilen statt. 5. Die Erscheinungen wurden nach der Mizellar-Hypothese von Nägeli's erklärt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01464428
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  • 4
    Electronic Resource
    Electronic Resource
    Die Gerbung der Gelatine durch Formaldehyd (1921)
    Springer
    Colloid & polymer science 29 (1921), S. 45-55 
    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: Zusammenfassung Die Gerbung der Gelatine ist ein zweiphasiger Vorgang. Die eigentliche Gerbung des gerbfähigen Anteiles ist physikalischer Natur und an diesem nimmt nur der gerinnbare Anteil der Gelatine teil. Der nicht gerinnbare Anteil der Gelatine tritt mit dem Formaldehyd in chemische Wechselwirkung unter Bildung von Methylenaminosäuren. Die der Gerbung fähige Menge der Gelatine entspricht dem Gerinnungswert der unbehandelten Gelatine Wird der gerinnbare Anteil durch Hydrolyse infolge Wasserstoffionenwirkung vermindert, so wird auch der gerbfähige Anteil dadurch vermindert. Die gerbenden Bestandteile der Formaldehydlösung sind die unlöslichen kolloiden Polymeren des Formaldehydes, die in der Hauptsache erst während der Einwirkung auf die Gelatine entstehen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01425137
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  • 5
    Electronic Resource
    Electronic Resource
    Protein synthesis in Artemia salina (1981)
    Springer
    Molecular biology reports 7 (1981), S. 197-202 
    Details
    ISSN: 1573-4978
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract It is thought that eucaryotic elongation factor eEF-Ts catalyzes the replacement of GDP for GTP on eucaryotic elongation factor eEF-Tu. We have found that eEF-Ts displays a strong nucleoside diphosphate phosphotransferase activity. This transferase activity resides in a dimer molecule of a subunit molecular weight close to 30,000. The transfosforylating activity of eEF-Ts results in a stimulatory effect of ATP, GTP, UTP and CTP on protein synthesis provided that GDP is present. The specificity for guanine nucleotides in protein synthesis resides only in eEF-Tu.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00805752
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  • 6
    Electronic Resource
    Electronic Resource
    Zur Untersuchung der Gerbstoffe, bezw. des Leders (1920)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 59 (1920), S. 97-99 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01365097
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  • 7
    Electronic Resource
    Electronic Resource
    Uptake and transport of immunoglobulin by the chick choroid plexus (1980)
    Springer
    Cell & tissue research 213 (1980), S. 393-410 
    Details
    ISSN: 1432-0878
    Keywords: Choroid plexus ; 5S-antibody (immunoglobulin) ; Immunoelectron microscopy ; Chick ; Tissue culture
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The choroid plexus from the lateral ventricles of 18-day chick embryos was cultivated as an organ in medium 199 until the degeneration of the stroma. Selected plexuses forming an empty epithelial sac were then incubated with enzyme-treated human immunoglobulin (5S-antibody) and with native human immunoglobulin (7S-antibody). Uptake of the 7S-antibody was observed after 30 min, whereas the 5S-antibody was taken up by the choroid plexus within 1 min, as demonstrated by means of the peroxidase-anti-peroxidase (PAP) technique (Sternberger 1974). The antibodies were located in conspicuous, large vacuoles of the choroid epithelium. Further experiments were performed using only 5S-antibody. In addition to the demonstration of the protein structure of this immunoglobulin, it was also shown that its binding capacity for tetanus toxoid as an antigen remains intact in the intracellular location. It was not possible to observe lysosomal degradation. Moreover, 5S-antibody was detectable in cultures first incubated with 5S-antibody for 30 min and subsequently in antibody-free medium for a further period of 7 to 11 days. The biological significance of the uptake of material from the cerebrospinal fluid and the possibility of the existence of a receptor for 5S-antibody are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00237886
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  • 8
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    Zur Untersuchung der Gerbstoffe, bezw. des Leders (1920)
    Springer
    Details
    Publication Date: 1920-02-01
    Print ISSN: 0016-1152
    Topics: Chemistry and Pharmacology
    Published by Springer
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  • 9
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    Die Gerinnungserscheinungen in Gelatine-Chlornatriumlösungen (1921)
    Springer
    Details
    Publication Date: 1921-06-01
    Print ISSN: 0372-820X
    Electronic ISSN: 1435-1536
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Springer
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  • 10
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    Die Adsorption des Formaldehydes durch Tierkohle (1921)
    Springer
    Details
    Publication Date: 1921-03-01
    Print ISSN: 0372-820X
    Electronic ISSN: 1435-1536
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Springer
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