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  • 1
    Electronic Resource
    Electronic Resource
    Zur spektralanalytischen bestimmung des eisens in zinkblende
    Amsterdam : Elsevier
    Spectrochimica Acta 3 (1949), S. 569-574 
    Details
    ISSN: 0371-1951
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0371-1951(49)80008-7
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  • 2
    Electronic Resource
    Electronic Resource
    Die Ultramafitite im Bergzug südlich des Ultentales, Provinz Alto Adige (Oberitalien) (1978)
    Springer
    Mineralogy and petrology 25 (1978), S. 257-286 
    Details
    ISSN: 1438-1168
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Summary The highly metamorphosed crystalline rocks of the Mountain range south of the Ultental contain numerous intercalations of ultramafic rocks. According to the results of 83 rock analyses they are predominantly peridotites s.s. to pyroxenepoor lherzolithes; pyroxenites are scarce. In the mountain crest and the surrounding high regions, in all types of ultramafitites pyrope-rich garnets are present. They partly originate from exsolution processes in both pyroxenes. Therefore, the genesis of the garnet ultramafitites in the Ultental mountain range is attributed to a high-pressure metamorphism which is younger than the tectonic emplacement from the mantle into the crustal sialic metamorphic rocks. As a result of decrease in pressure and temperature, garnet is decomposed through kelyphite stages into actinolitic amphibole and chlorite. This retromorphism, decisively influenced by a more or less pervasive deformation, causes a different spatial distribution of the ultramafic decomposition products which according to their facies can be arranged in a distinct series finally leading to serpentinites.
    Notes: Zusammenfassung In den hochmetamorphen Kristallingesteinen des Bergzuges südlich des Ultentales sind zahlreiche Ultramafitite eingeschaltet. Nach den Ergebnissen von 83 Gesteinsanalysen sind es vorwiegend Peridotite und pyroxenarme Lherzolithe Pyroxenite sind selten. Im Gebirgskamm und in den angrenzenden Hochgebieten treten in allen Ultramafitit-Typen pyropreiche Granate auf. Ihre Bildung ist teilweise auf eine Entmischung aus beiden Pyroxenen zurückzuführen. Die Genese der Ultramafitite des Ultentaler Bergzuges wird deshalb einer Hochdruckmetamorphose nach der Einschuppung aus dem Mantel in die sauren Krusten-Metamorphite zugeschrieben. In Folge einer Druck-und Temperaturabnahme wird der Granat in tektonisch durchbewegten Gesteinsbereichen zu Kelyphit-aus Orthopyroxen, Hornbelende und Spinell-und schließlich zu Aktinolith und Chlorit abgebaut. Die Retromorphose führt dadurch zu einer räumlich unterschiedlichen Verteilung der faziell gliederbaren Abbaustadien der Ultramafitite bis zu Serpentiniten.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01180232
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  • 3
    Electronic Resource
    Electronic Resource
    Zur Gefügeregelung von Olivin-Porphyroblasten im Ultramafiti-Komplex von Åheim, Sunnmöre/Westnorwegen (1973)
    Springer
    Mineralogy and petrology 20 (1973), S. 267-279 
    Details
    ISSN: 1438-1168
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Summary The lattice orientation of olivine porphyroblasts in dunites of the Åheim Ultramafic Complex, western Norway, shows a principal γ-direction parallel to lineation in the host rock, corresponding to the tectonic B-axis. The other optical axes α and β form a girdle in the tectonic ac-plane with certain maximas. This orientation is caused by an earlier stress pattern. ThePT-conditions of this deformation may be explained by experimental results of other authors. Small recrystallized olivine inclusions in the blasts tend toward an α-orientation perpendicular to S; β rotates into the direction of lineartion. The same orientation occurs predominatly in the olivine rocks of the complex, which also have recrystallized during a younger retrograde metamorphism under the conditions of the chlorite amphibole peridotite facies.
    Notes: Zusammenfassung Die Gefügeregelung von Olivin-Porphyroblasten in dunitischen Ultramafititen des Åheimer Komplexes ist durch eine bevorzugteZ-Orientierung parallel zur Lineation-entsprechend der tektonischen B-Achse-gekennzeichnet.X undY liegen mit diskreten Maxima auf einem ac-Gürtel. Die Orientierung der Porphyroblasten entspricht einem reliktisch erhaltenen, älteren Verformungsplan, dessenPT-Bedingungen aus experimentellen Ergebnissen anderer Autoren und mit genetischer Parallelisierung zur Bildung der Granatultramafitite des Gebietes erklärt werden können. Kleine, rekristallisierte Olivinkorn-Einschlüsse in den Porphyroblasten zeigen einen Trend zu einerX-Orientierung senkrecht auf “s”;Y rotiert dabei in die Richtung der Gesteinslineation. Diese Orientierung ist in vielen, während einer jüngeren, retrograden Metamorphose rekristallisierten Olivingesteinen beobachtbar, welche unter denPT-Bedingungen einer Chlorit-Hornblende-Peridotitfazies stattfand.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01081336
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  • 4
    Electronic Resource
    Electronic Resource
    Über Stilpnomelan in der Grünschieferzone der Münchberger Gneismasse (1969)
    Springer
    Contributions to mineralogy and petrology 24 (1969), S. 66-75 
    Details
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Zusammenfassung Zwei von den Verfassern neu aufgefundene Vorkommen von Stilpnomelan in Gesteinen der Prasinit-Phyllit-Serie der Grünschieferzone der Münchberger Gneismasse (NO-Bayern) werden beschrieben und Angaben zur röntgenographischen Identifizierung sowie zum Gesteins- und Mineralchemismus mitgeteilt. Die Stilpnomelanbildung wird in das metamorphe Geschehen des Gesteinskomplexes zeitlich eingeordnet und mit den Mineralneubildungen im Grenzbereich Grünschiefer-Serpentinit verglichen; die dafür auftretenden wahrscheinlichen Druck- und Temperaturbedingungen werden kurz diskutiert.
    Notes: Abstract Two new occurrences of stilpnomelane found by the authors in the Prasinite-Phyllite series of the “Grünschieferzone” of the “Münchberger Gneismasse” (Northern Bavaria) will be described and information on the x-ray identification as well as on rock- and mineralchemistry will be offered. The crystallization of stilpnomelane will be located chronologically in the metamorphic history of the rock complexes and compared with the recrystalization of other minerals in the border range of the Greenslate-Serpentin rocks; the possible pressure and temperature conditions will be discussed briefly.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00398754
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  • 5
    Electronic Resource
    Electronic Resource
    Demonstration of the neural crest origin of type I (APUD) cells in the avian carotid body, using a cytochemical marker system (1973)
    Springer
    Histochemistry and cell biology 34 (1973), S. 191-203 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The biogenic amines present in the carotid body Type 1 cells of two avian species (Japanese quail and chicken) were identified, by microspectrofluorometry of formaldehyde-induced fluorescence, as dopamine and 5-hydroxytryptamine respectively. These and other cytochemical properties establish the cells as members of the APUD series. Grafts of the neural rhombencephalic primordium from 6 to 10-somite quail embryos were implanted in the appropriate region of chick embryos of the same age. After up to 11 days incubation the carotid bodies of the host were freeze-dried and treated with hot formaldehyde vapour. The carotid body Type 1 cells in the chick host were identified, by the presence of dopamine and the absence of 5-HT, as cells from the quail neural crest. The dopamine phenotype in cells of quail origin thus provides a cytochemical marker which may be used for other allograft experiments. The present work confirms earlier findings, using a biological (nuclear chromatin) marker, which showed the avian carotid body to be of neural crest origin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00303435
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  • 6
    Electronic Resource
    Electronic Resource
    Microspectrofluorometry of ultraviolet-inducible fluorescence in supravitally-stained ascites tumour cells (1973)
    Springer
    Journal of molecular histology 5 (1973), S. 151-156 
    Details
    ISSN: 1573-6865
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Synopsis Ultraviolet irradiation of tumour cells (Ehrlich tetraploid ascites tumour of mice, TO strain), supravitally stained with thiazine dyes (Azure II, Azure A, Methylene Blue, Toluidine Blue) or an oxazine dye (Brilliant Cresyl Blue), induces blue fluorescence in cytoplasmic bodies believed to be lipid droplets or lysosome-like bodies. Microspectrofluorometry of the inducible fluorescence in Ehrlich tumour cells gives bimodal excitation (340/394 nm) and emission (443/700 nm) curves.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01012557
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  • 7
    Electronic Resource
    Electronic Resource
    The histochemical demonstration of catecholamines and tryptamines by acid- and aldehyde-induced fluorescence: microspectrofluorometric characterization of the fluorophores in models (1972)
    Springer
    Journal of molecular histology 4 (1972), S. 59-69 
    Details
    ISSN: 1573-6865
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Synopsis Fluorescence excitation and emission spectra are reported of the fluorophores derived from various catecholamines, tryptamines and related substances treated with vapours of acetaldehyde, glutaraldehyde and acetic acid. In most cases, the excitation maxima were at about 400–410 nm, and emission maxima at about 530 nm (catecholamines) or 560 nm (tryptamines). The microspectrofluorometric differentiation of individual arylethylamines by the relative height of excitation peaks at about 400 and 330 nm after treatment with acetic acid vapour is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01005269
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  • 8
    Electronic Resource
    Electronic Resource
    A microfluorometric study of masked metachromasia in cells of the endocrine polypeptide (APUD) series (1972)
    Springer
    Journal of molecular histology 4 (1972), S. 145-153 
    Details
    ISSN: 1573-6865
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Synopsis Masked metachromasia can be demonstrated by staining with a metachromatic basis dye after a Feulgen-type hydrolysis of suitably fixed tissue, and is believed to be indicative of polypeptides with a high concentration of side-chain acidic groups and a random-coil conformation. In this investigation, the metachromatic fluorochrome Coriphosphine O was used. After staining, the degree of metachromasia under various conditions and in several tissues was assessed by microspectrofluorometric measurements of the ratio of metachromatic fluorescence (red) to orthochromatic fluorescence (green). This technique was employed, in the first instance, to determine the optimum staining conditions; details of the final staining method are presented. Measurements of metachromasia in different tissues under standardized conditions showed that the degree of metachromasia varied between different cell types in the APUD series.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01004973
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  • 9
    Electronic Resource
    Electronic Resource
    Zur spektralanalytischen Bestimmung von SiO2 in quarzhaltigen Flußspatkonzentraten (1954)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 142 (1954), S. 199-204 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Zusammenfassung Die quantitative spektralanalytische Bestimmung von SiO2 in quarz — haltigen Flußspatkonzentraten wurde bei Anregung im Gleichstrom- und Wechselstromkohlebogen untersucht, wobei der letzte eine größere Genauigkeit lieferte. Als Bezugselement für Si konnte Ca selbst gewählt werden. Das Verfahren bedient sich einer Eichkurve, die für SiO2-Gehalte zwischen 0,01 und 10% aufgestellt wurde. Der mittlere Fehler der Einzelmessung beträgt ±8,0%. Das beschriebene Wechselstrom-Kohlebogenverfahren dürfte auch für andere quantitative Bestimmungen von Verunreinigungen und Spurenelementen geeignet sein, wie sie bei laufender Betriebskontrolle und bei geochemischen Untersuchungen erforderlich sind.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00433316
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  • 10
    Electronic Resource
    Electronic Resource
    Book review (1973)
    Springer
    Journal of molecular histology 5 (1973), S. 491-492 
    Details
    ISSN: 1573-6865
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01012007
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