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  • 1950-1954  (2)
  • 1910-1914  (7)
  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 1 (1953), S. 464-466 
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 173 (1954), S. 304-305 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Litter-mate Wistar rats 23 days of age were used in these experiments, which were continued for sixteen consecutive weeks. The cariogenic diets comprised 800 gm. cracked yellow corn, 30 gm. alfalfa meal, 60 gm. linseed meal, 250 gm. sucrose, 80 gm. corn oil, 50 gm. active dry yeast and 10 gm. ...
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Development genes and evolution 31 (1910), S. 80-90 
    ISSN: 1432-041X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung In den Wurzelspitzen der Zwiebel und der Hyazinthe wandern die basophilen Substanzen beim Durchgang eines elektrischen Stromes nach der Anode hin, außer wenn eine mitotische Figur vorhanden ist, welche im ganzen nach der Anode hinwandert. Mit dem Vorschreiten des mitotischen Prozesses nimmt die Einwirkung des Stromes auf das Chromatin ab, entgegen der Folgerung vonPentimalli, welcher annahm, daß sie wächst. Chromosomen oder andre Körper werden durch Ströme von der verwendeten Stärke (0,00001–0,01 Ampère) niemals durch die Kern- oder Zellwände hindurchgetrieben.
    Notes: Summary In the cells of root tips of the onion and hyacinth the basophile substances migrate toward the anode on the passage of an electric current, except in case of the mitotic figure, which migrates as a whole toward the anode. As the process of mitosis advances the effect of the current on the chromatin decreases, contrary to the conclusion ofPentimalli, who supposed that it increases. Chromosomes or other bodies are never carried through the nuclear or cell walls by currents of the density used (.00001–.01 amperes).
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Development genes and evolution 34 (1912), S. 263-266 
    ISSN: 1432-041X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Gibt man einen Tropfen ranziges Ol mit Chloroform in Wasser und läßt 1/10-Normal-Natronlauge gegen zwei entgegengesetzte Pole des Tropfens gleichzeitig und gleichmäßig diffundieren, so zieht sich der Tropfen zusammen und unterliegt einer Zweiteilung entlang seinem Äquator. Diese Teilung ist bedingt durch eine Verminderung der Oberflächenspannung, welche auf die Seifenbildung an den Polen folgt, oder durch eine relative Vermehrung der Oberflächenspannung am Äquator. Im Gegensatz zuRobertson führt eine Abnahme der Oberflächenspannung entlang dem Äquator nicht zur Tropfenteilung.
    Notes: Summary If a drop of rancid oil and chloroform is immersed in water and n/10 NaOH solution is allowed to diffuse against two opposite poles of the drop at the same time and rate, the drop constricts and divides in two along the equator. This division is due to decrease in surface tension following soap formation at the poles, or relative increase in surface tension at the equator. Contrary toRobertson, a decrease in surface tension along the equator does not divide a drop.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Development genes and evolution 37 (1913), S. 233-247 
    ISSN: 1432-041X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Wird ein FlÜssigkeitstropfen in einem flÜssigen Medium suspendiert, so breitet sich jeder Bezirk mit verminderter Oberflächenspannung aus und treibt sich vor, indem er vortikale Strömungen hervorbringt. Dagegen zieht sich jeder Bezirk mit vermehrter Oberflächenspannung zusammen und flacht sich ab, unter Veranlassung eines Wirbels in der entgegengesetzten Richtung. Teilung eines ähnlichen Tropfens kann durch Verhältnisse zustande kommen, bei denen ein äquatorial gelegener Streifen höhere Oberflächenspannung besitzt, als die Übrige Oberfläche. Robertson kam zu entgegengesetzten Folgerungen — im Vorstehenden sind aber fÜnf unrichtige Punkte in seiner BeweisfÜhrung aufgewiesen worden.
    Notes: Summary If a drop of liquid is suspended in a liquid medium, any area whose surface tension is reduced, spreads and protrudes, causing vortical currents, whereas any area whose surface tension is increased, contracts and becomes more flattened, causing a vortex in the opposite direction. Division of a similar drop may be brought about by a condition in which an equatorial band has a higher surface tension than the remainder of the surface. Robertson came to opposite conclusions, but five fallacies in his argument are pointed out above.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-2013
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    American Journal of Anatomy 10 (1910), S. 425-430 
    ISSN: 0002-9106
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    The @Anatomical Record 7 (1913), S. 51-61 
    ISSN: 0003-276X
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 0003-276X
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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