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  • 1
    Electronic Resource
    Electronic Resource
    Sulphide inclusions in manganese nodules of the Northern Pacific (1979)
    Springer
    Mineralium deposita 14 (1979), S. 375-380 
    Details
    ISSN: 1432-1866
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00206366
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  • 2
    Electronic Resource
    Electronic Resource
    The calorigenic action of norepinephrine in rats after hypophysectomy (1975)
    Springer
    Cellular and molecular life sciences 31 (1975), S. 343-344 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung 2–4 h nach Hypophysektomie erhöht Noradrenalin den Sauerstoffverbrauch wie bei Kontrollratten, 7 Tage nach der Entfernung der Hypophyse ist jedoch diese Wirkung des Noradrenalin aufgehoben. Die CO2-Abgabe verhält sich qualitativ wie der Sauerstoffverbrauch.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01922576
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  • 3
    Electronic Resource
    Electronic Resource
    Isolation of a spermatozoid-releasing and -attracting substance from female gametophytes of Laminaria digitata (1979)
    [s.l.] : Nature Publishing Group
    Nature 279 (1979), S. 430-431 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Capillary gas- Chromatographie separation of extracts from female gametophytes of Laminaria digitata. a, normal alkanes ranging from heptane to nonadecane separated in identical conditions; b, 3-d-old suspension without eggs, extracted for 22.5 h ; c, suspension containing 8.7 x 10 eggs, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/279430a0
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  • 4
    Electronic Resource
    Electronic Resource
    Identification of the sex attractant in the marine brown alga Fucus vesiculosus (1978)
    Springer
    Naturwissenschaften 65 (1978), S. 389-390 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00439708
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  • 5
    Electronic Resource
    Electronic Resource
    Asymptotically multinomial experiments and the extension of a theorem of wald (1979)
    Springer
    Probability theory and related fields 50 (1979), S. 179-204 
    Details
    ISSN: 1432-2064
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Summary For n=1,2, ... let P n be a set of probability measures on the measurable space (X, A) containing a fixed nulldistribution P 0. We study approximations of P n n ={P n : P∈P n } for large n. Degeneracy is avoided by postulating that (1) no P n can be distinguished from P 0 n with probability almost 1 (P∈P n ); (2) events of small P 0-probability contain little information. The second condition turns out to be equivalent to the existence of nondegenerating multinomial approximations to P n n obtained from partitions of the sample space X. In particular we consider the case that (X, A) is the real axis endowed with the field of Borel sets and that dP/dP 0 (x) are monotonic functions of x. If (1) and (2) are satisfied, the family P n n can be approximated by a multinomial family obtained from an interval partition of the line which depends on the accuracy of approximation, but not on n.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00533639
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  • 6
    Electronic Resource
    Electronic Resource
    Nucleus anomaly test in Chinese hamster and in rat after treatment with isoniazid (1978)
    Springer
    Human genetics 〈Berlin〉 42 (1978), S. 9-14 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Nucleus anomaly test in Chinese hamsters and in rats treated with isoniazid (INH) was carried out according to a standard protocol in two different laboratories. These comprised both short-term studies, in which the tests were performed on animals killed 6, 12, 24, 36, or 48 h after the second of two consecutive doses of 5, 25, or 125 mg/kg INH given at an interval of 24 h, and long-term studies in animals treated with 25 mg/kg INH thrice weekly for 12 weeks. As a rule, each group consisted of at least four animals, and 1000 cells from each animal were examined. In one of the laboratories, a slight, but statistically significant increase in the incidence of nuclear anomalies was observed in two experiments on animals sacrificed 24 h after treatment; in the majority of cases, however, the investigations yielded negative results. Two out of three long-term studies revealed a slight, but statistically significant increase in the incidence of nuclear anomalies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00291617
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  • 7
    Electronic Resource
    Electronic Resource
    Chromosome analysis of bone marrow in mammals after treatment with isoniazid (1978)
    Springer
    Human genetics 〈Berlin〉 42 (1978), S. 15-25 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Cytogenetic investigations in bone marrow from animals treated with isoniazid (INH) were performed in seven different laboratories according to a standard protocol. The experiments were carried out in the Chinese hamster, the mouse, and the rat. In short-term studies INH was administered twice at an interval of 24 h in doses of 5, 25, and 125 mg/kg, and the animals were sacrificed 6, 12, 24, and 48 h after the second dose. In long-term studies doses of 25 and 125 mg/kg were administered thrice weekly for 12 weeks. As a rule, each group consisted of at least four animals, and 100 metaphases per animal were counted. Statistical analysis of the data showed that the incidence of chromosomal aberrations including gaps lay in the critical range for two groups in one laboratory and was significantly higher than in the control in three groups in another of the seven laboratories. From the results of both the short-term and the long-term studies in all laboratories, however, it may be concluded, that isoniazid does not induce gross chromosomal aberrations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00291618
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  • 8
    Electronic Resource
    Electronic Resource
    Cytogenetic study in spermatocytes of mice and Chinese hamsters after treatment with isoniazid (INH) (1978)
    Springer
    Human genetics 〈Berlin〉 42 (1978), S. 50-54 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Meiotic chromosomes of spermatocytes from INH-treated male mice and Chinese hamsters were analysed for chromosome aberrations in diakinesis-metaphase I and metaphase II. The experiments were performed in two laboratories while a third laboratory participated in the chromosome evaluation. No enhancement of chromosome aberrations could be observed after acute treatment of early primary spermatocytes or chronic treatment of spermatogonia with INH.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00291623
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  • 9
    Electronic Resource
    Electronic Resource
    The effect of isoniazid (INH) on Chinese hamster and mouse spermatogonia (1978)
    Springer
    Human genetics 〈Berlin〉 42 (1978), S. 44-49 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Acute and chronic treatment of Chinese hamsters and mice with 5, 25 and 125 mg/kg isoniazid (INH) given by oral intubation did not enhance the chromosomal aberration frequencies in spermatogonia. The structural and numerical aberration rates remained in the range of spontaneous events even after the chronic treatment over 12 weeks with 3×125 mg/kg INH per week. This dose is much higher than normally used for prevention and therapy in man (3–16 mg/kg).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00291622
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  • 10
    Electronic Resource
    Electronic Resource
    Analyse der verminderten Stoffproduktion bei Stickstoffmangel (1932)
    Springer
    Planta 16 (1932), S. 1-9 
    Details
    ISSN: 1432-2048
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Zusammenfassung 1. Der Unterschied zwischen Pflanzen vonSinapis alba in Wasserkultur mit normalem Gehalt an Stickstoff (als Nitrat) und sehr geringem Stickstoffgehalt ist untersucht worden in Bezug auf die für die Stoffproduktion wichtigen Faktoren: Spaltöffnungsweite, Atmungs- und Assimilationsintensität der Blätter und das Verhältnis Trockensubstanz von Stengel+Wurzel: Blattareal. 2. Es wurde gefunden, daß der Unterschied in der Stoffproduktion nicht in Unterschieden der Spaltöffnungsweite und Atmungsintensität zu suchen ist. 3. Die Assimilationsintensität der “stickstoffbedürftigen” Blätter war in Lichtintensitäten über 17000 Lux nur halb so groß wie die der “vollgedüngten” Blätter. In Lichtintensitäten unter 2000 Lux war kein Unterschied in der Assimilationsintensität nachzuweisen. 4. Die Assimilationsintensität von vollgedüngten Pflanzen vonSinapis alba ist in Wasserkultur und in Gartenerde wahrscheinlich dieselbe. 5. Bei Stickstoffhunger der Pflanzen wird der Assimilationsüberschuß hauptsächlich in Stengel und Wurzel abgelagert und nicht für Neubildung von Blättern verwendet. Darum wird die tägliche prozentische Trockensubstanzzunahme stets vermindert.Die Hauptursache des verminderten Wachstums von stickstoffhungernden Pflanzen liegt somit darin, daß das Verhältnis Trockensubstanz von Wurzel+Stengel: Blattareal vergrößert wird.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01911176
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