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  • 1
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 32 (1976), S. 579-581 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The amount of N-acetylserotonin (NAS) in the granule layer of the rat cerebellum was investigated using immunohistologic double antibody technique. After 5 days of treatment with parachlorophenylalanine (PCPA) an increase of NAS was observed. The possibility of a differential effect of PCPA on serotonin synthesis in the neurons and the nerve terminals is discussed.
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 33 (1977), S. 662-663 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The highest amount of melatonin (M), localized immunohistologically, was found in rectum, decreasing in the order: colon, duodenum, caecum, esophagus, stomach, ileum and jejunum. No M was found in the liver, spleen or pancreas. The distribution of M corresponds with the localization of serotonin-producing argentaffin cells.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Solar physics 66 (1980), S. 233-243 
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Comparison of the long-term variation of photospheric faculae areas with that of sunspots shows that studies of faculae provide both complementary and supplementary information on the behaviour of the solar cycle. Detailed studies of the development of sunspots with respect to faculae show that there is a high degree of order over much of a given cycle, but marked differences from cycle to cycle. Within a cycle the relationship between spot and faculae areas appears to be similar for the N and S solar hemispheres, and over the early stages of a cycle it is directly related to the magnitude of the maximum sunspot number subsequently attained in that cycle. This result may well have predictive applications, and formulae are given relating the peak sunspot number to simple parameters derived from this early developmental stage. Full application to the current cycle 21 is denied due to the cessation of the Greenwich daily photoheliographic measurements, but use of the cruder weekly data suggests a maximum smoothed sunspot number of 150 ± 22. The effects of the incompatibility of the spot and faculae data, in that faculae are unobservable over a large fraction of the solar disc and also do not always develop associated spots, have been examined in a detailed study of two cycles and shown not to vitiate the results.
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Solar physics 74 (1981), S. 125-129 
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Two independent methods of predicting the magnitude of the peak of a forthcoming sunspot cycle are summarized. One is based on considerations of the development of spots relative to the area of the faculae within which they form during the early stages of the cycle in question, and gives a lead-time of about 2 years. The other uses measurements of the quiet-day variations of the Earth's magnetic field at the time of the preceding sunspot minimum and allows predictions to be made a half-cycle ahead. A possible extension of this technique to the use of data on the component of the interplanetary magnetic field normal to the ecliptic plane is suggested. References to fuller details of both methods are given.
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 29 (1973), S. 619-621 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Der Durchmesser der Zellkerne von Neuronen im Nucleus Medialis Amygdalae (NMA) der normalen männlichen Totenkopfaffen ist grösser als derjenige der ovarektomierten Weibchen mit Östrogen/Progesteron-Substitution. Keine Unterschiede wurden jedoch im Nucleus suprachiasmaticus and cerebralen Cortex festgestellt. Diese morphologischen Unterschiede können auf eine unterschiedliche funktionelle Bedeutung der Amygdala bei Männchen und Weibchen bezogen werden.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 30 (1974), S. 378-379 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Nachweis, dass bei ausgewachsenen Totenkopfaffen (Saimiri sciureus) die Zellkerndurchmesser im Nucleus ventromedialis hypothalami in der Periode der hochaktiven Spermiogenese kleiner sind als zu Beginn der Brunstperiode. Da das limbische System mit diesem Kern zusammenhängt, sind direkte Einflüsse nicht auszuschliessen.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-0827
    Keywords: Antler ; Bone matrix ; Growth ; Immunohistology ; Testosterone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Description / Table of Contents: Résumé La localisation de testostérone dans les andouillers de daims à queue blanche (Odocoileus virginianus), au début de la période de calcification accélérée, est étudiée par des méthodes immunohistologiques (la technique d'anticorps doublement marqués à la fluorescéine et la péroxydase). La réaction la plus intense à la testostérone est observée dans la couche du blastème prochondrale et dans les follicules en voie de développement de la partie veloutée des andouillers. Ces résultats semblent confirmer l'importance de la testostérone dans la synthèse de la matrice osseuse.
    Abstract: Zusammenfassung Die Lokalisation von Testosteron im Geweihgewebe des Weißwedelhirsches (Odocoileus virginianus) zu Beginn der Phase der beschleunigten Kalzifizierung wurde unter Anwendung der doppelten Antikörper-Technik (Fluorescein- und Peroxidase-Markierung) immunohistologisch untersucht. Die größte Anhäufung von Testosteron wurde in den Schichten des prochondralen Blastems und in den wachsenden Follikeln des Bastgewebes beobachtet. Die Befunde weisen auf die Bedeutung des Testosterons für die Matrix-Synthese hin
    Notes: Abstract Using immunohistological methods (fluorescein and peroxidase labeled double antibody technique), the localization of testosterone in the antlers of white-tailed deer (Odocoileus virginianus) at the beginning of the period of accelerated calcification was examined. The most intense reaction for testosterone was found in the prochondral blastema layer and in the growing follicles of the velvet. The findings may indicate the importance of testosterone in bone matrix synthesis.
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Contributions to mineralogy and petrology 37 (1972), S. 139-160 
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The Tertiary complex of doleritic cone sheets in Ardnamurchan has been sampled and a geochemical study made on 98 rock specimens by X-ray fluorescence analysis. A range in composition from 48 to 66% (wt.) SiO2 is associated with, for example, an increase in Rb from 2 to 126 ppm, and a decrease in Ni from 86 to 〈 1 ppm. R-mode factor analysis indicates element groupings that are most easily related to a history of crystal fractionation beneath the central intrusive complex. No chemical basis can be found that would add support to either the two-centre or the spiral-fracture hypotheses relating to the disposition of the cone sheets. Plots of oxide and normative data show the Hebridean cone-sheet complex to have a tholeiitic character, which is compared with the Hawaiian tholeiitic and Hebridean alkalic series. A transitional nature for the two Hebridean series, compared with the two Hawaiian series, is probably related to derivation from an olivine basalt parent rather than from an olivine tholeiite as in Hawaii.
    Type of Medium: Electronic Resource
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