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  • 1960-1964  (20)
  • 1925-1929  (2)
  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 84 (1962), S. 4552-4561 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 85 (1963), S. 2835-2843 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    International journal of legal medicine 52 (1962), S. 615-629 
    ISSN: 1437-1596
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Notes: Zusammenfassung 1. Die ADH und GOT-Aktivität der menschlichen Leber wurde zu verschiedenen Zeiten nach dem Tode bestimmt: a) Nach dem Tode sind über verhältnismäßig lange Zeiten mehr oder weniger hohe ADH-Aktivitäten zwischen 2–100 E/mg Protein nachzuweisen. b) Die Höhe der ADH-Aktivität ist mehr von äußeren Bedingungen nach dem Tode als vom Zeitpunkt des eingetretenen Todes abhängig. c) Die Körper- und Lebertemperatur haben je nach dem Zeitpunkt der Bestimmung den größten Einfluß auf die Höhe der ADH-Aktivität. 2. Die Abhängigkeit der ADH- und GOT-Aktivitäten von postmortalen Bedingungen wurde durch Autolyseversuche überprüft. a) Die ADH-Aktivität fällt bei 37° C ab, die GOT-Aktivität steigt primär an. b) Anstieg und Abfall erfolgen bei niedrigerer Temperatur langsamer. 3. Die ADH-Aktivität nach dem Tode unterscheidet sich, abgesehen von extremen postmortalen Bedingungen, nicht wesentlich von der Aktivität in vitalen Leberpunktaten. 4. Die Höhe der ADH-Aktivität pro mg extrahierbares Protein wird von der Zunahme des Bindegewebes und seiner Beziehung zur Struktur des Leberläppchens mitbestimmt. 5. Die Möglichkeit einer individuellen Diagnose der ADH-Aktivität aus dem postmortalen Zustand wird erörtert.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 175 (1963), S. 457-479 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The ESR absorption line of F-centers in additively colored KCl-crystals is narrowed continuously from 46 to 35 Gauss (width between points of maximum slope) by light absorption in the F-band at room temperature. It is shown that this narrowing is due to a continuous changing of the F-centers during the illumination. There is no ESR signal observed which can be attributed to any one of the known F-aggregate centers M, R and N. The changing of the ESR signal is explained as an exchange narrowing which is caused by a loose aggregation of those F-centers which are not transformed into new centers. These aggregates are either pairs or larger clusters of F-centers. According to a calculation of the exchange frequency as a function of the distance between F-centers the observed exchange narrowing corresponds to an average distance of 4 to 5 lattice distances. ENDOR measurements are consistent with this analysis. In addition several observations on the influence of annealing and bleaching at higher temperature on the ESR-spectrum of F-centers in KCl are reported.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 173 (1963), S. 455-461 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract ESR- and ENDOR-spectra of F-centers in RbCl and RbBr have been measured, giving the hyperfine constants for 5 resp. 6 shells of neighbouring ions. The resolved structure with a characteristic distance of 36 G in the ESR-spectrum of RbCl is due to the interaction with the nearest Rb85 nuclei. All results fit well with the properties of F-centers in other alkali halides.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 170 (1962), S. 455-464 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Simultaneous measurements of optical absorption and electron spin resonance of additively colored KCl crystals have been carried out during the optical bleaching ofF-centers at −90°C. TheF-center resonance signal does not change in its significant properties e.g. line shape, line width,g-value, and saturation behavior, but it decreases proportional to the decrease of the opticalF-center absorption band. No ESR-signal due to theF′-center could be observed. The time dependence of theF⇄F′-center conversion has been investigated by ESR and optical measurements. It does not give any indication of a paramagnetism of theF′-center, too. The kinetics of the thermal decay of theF′-center at −90°C have been studied. One can interpret the time dependence of this process, if one assumes that the mean lifetime of anF′-center depends on the distance of the nearest halogen ion vacancy. The expectation of life of theF′-centers therefore increases during the thermal decay, as the mean distance between remainingF′-centers and vacancies increases.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 48 (1961), S. 299-300 
    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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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 88 (1963), S. 516-530 
    ISSN: 1432-1076
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Es wird über einen angeborenen kompletten Verschluß des Pylorus bei einem Neugeborenen berichtet. Es ist dies die erste in der deutschen Literatur mitgeteilte Beobachtung, die erfolgreich operiert worden ist. Das Zustandekommen derartiger angeborener Verschlüsse im Bereiche des Pylorus wird, ebenso erörtert wie die Klinik und Behandlung derselben. Alle bisher in der Weltliteratur mitgeteilten Beobachtungen wurden erfaßt.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 48 (1964), S. 81-94 
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary In order to obtain a continuous culture (homokontinuierliche Kultur) of Chlorella pyrenoidosa, it is necessary to keep the various factors constant which are involved in the growth process. The apparatus for algal cultures described by various authors allow to maintain constant temperature, availability of CO2 and supply of nutrient medium. The apparatus described in this paper provides additionally a constant supply of light per cell by means of a photo-cell controlled dilution of the algal cultures. By using opal-glass culture vessels a very constant level of density in the suspension is secured. The density of the culture, i.e. the available light per single cell, can be kept constant with an accuracy of ±4%. — The percentual deviation of the average values of cell numbers, dry weight and pigments were estimated over 4 days. Synchronized cultures were diluted in the described device and analysed for some physical and chemical parameters.
    Notes: Zusammenfassung Um in einer Kultur von Chlorella pyrenoidosa alle Anzuchtbedingungen konstant halten zu können (homokontinuierliche Kultur), wurde eine automatische Verdünnungsanlage entwickelt und beschrieben, die es ermöglicht, zusätzlich zu den bisher schon konstanten Kulturbedingungen den Lichtgenuß pro Einzelzelle auf gleicher Höhe zu halten. Durch die photoelektrische Steuerung der Verdünnungsanlage (Turbidostat) und die Verwendung mattierter Kulturröhren kann der Lichtgenuß je Einzelzelle bis auf ±4% konstant gehalten werden. Einer mit Hilfe dieser automatischen Verdünnungsanlage eingestellten homokontinuierlichen Kultur wurden über mehrere Tage Proben entnommen und analysiert; dabei zeigten die Daten für die Zellzahl, das Trockengewicht und die Pigmente nur eine statistisch zu erwartende Abweichung vom Mittelwert. Versuche mit synchronem Zellmaterial in der automatischen Verdünnungsanlage machen es wahrscheinlich, daß in die Steuerung der Verdünnung am stärksten das Produkt aus Zellzahl und Zellvolumen eingeht.
    Type of Medium: Electronic Resource
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