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  • Springer  (57)
  • Wiley-Blackwell  (12)
  • Wiley  (11)
  • American Geophysical Union  (1)
  • American Meteorological Society (AMS)
  • 1980-1984  (38)
  • 1970-1974  (13)
  • 1965-1969  (30)
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  • 1
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    Structure of the oligosaccharides sensitive to endo-beta-N-acetylglucosaminidase H in the glycoprotein of Friend murine leukemia virus (1984)
    Wiley
    Details
    Publication Date: 1984-09-01
    Print ISSN: 0014-2956
    Electronic ISSN: 1432-1033
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Published by Wiley on behalf of Federation of European Biochemical Societies.
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    PAPER CURRENT
  • 2
    Electronic Resource
    Electronic Resource
    Identification of a blue object with a newly detected X-ray source (1983)
    Springer
    Astrophysics and space science 94 (1983), S. 291-293 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A blue object was identified on POSS prints. Its position coincides with an X-ray source found by the HEAO-B satellite.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00653718
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    On the structure of the ‘red’ globular cluster NGC 1806 in the large magellanic cloud (1982)
    Springer
    Astrophysics and space science 84 (1982), S. 133-141 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A structural study of the old globular cluster NGC 1806 in the LMC has been carried out by star counts onB- andV-ESO 3.6 m telescope plates with three different limiting magnitude levels. The star density distribution was obtained directly from the surface strip count function with the Plummer formalism and the generalized Schuster law according to Lohmann. This yields beside the central density the structural parametern and the characteristic length parameterR 0 for each individual colour and magnitude level. The results show that the blue stellar content of NGC 1806 — the horizontal branch stars — is more concentrated towards the cluster center than the red giant and subgiant objects. Also such a dynamical mass segregation is observed for the red giants compared with the subgiants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00713631
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Studien zur Benzotropolonbildung aus 3-Hydroxy-o-benzochinon (1967)
    Springer
    Monatshefte für Chemie 98 (1967), S. 852-873 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract The formation of benzotropolone compounds from catechol and pyrogallol derivatives depends upon the type, size, and position of the substituents in the reactants. Electrophilic substituents can be installed only in the 5-position of pyrogallol without loosing the capability of forming benzotropolones. This behavior is explained by the symmetrical electronic structure of the anion acting as 1.3-dipole. Pyrogallols, substituted in the 4- and 6-position by either methyl-, ethyl- or phenyl-groups, yield benzotropolones with 3-methoxy-o-benzoquinone. Isopropyl- andtert. butyl-groups in the same positions hinder benzotropolone formation because of steric hindrance. It was attempted to clarify the effect of the factors on the reaction mechanism by analysis of mixtures of benzotropolones, formed by oxidative coupling of catechol derivatives with pyrogallol-derivatives. On account of deficient yields this could not be done.
    Notes: Zusammenfassung Die Benzotropolonbildung aus Brenzcatechin- und Pyrogallolderivaten hängt von Art, Größe und Stellung der Substituenten in den Reaktionspartnern ab. Nur in die 5-Stellung des Pyrogallols können elektrophile Substituenten eingebaut werden, ohne daß die Fähigkeit zur Benzotropolonbildung verlorengeht. Dieses Verhalten wird durch die Symmetrie der elektronischen Struktur des als 1,3-Dipol wirkenden Anions erklärt. In 4- und 6-Stellung durch Methyl-, Äthyl- und Phenylgruppen substituierte Pyrogallole liefern mit 3-Methoxy-o-benzochinon Benzotropolone; Isopropyl- undtert. Butylgruppen in den gleichen Positionen verhindern aus sterischen Gründen die Benzotropolonbildung. Es wird versucht, aus der Produktanalyse von Benzotropolongemischen, die durch oxydative Verknüpfung von Brenzcatechinderivaten mit Pyrogallolderivaten hervorgegangen sind, Einblick in die den Mechanismus bestimmenden Faktoren zu erhalten. Verbindliche Aussagen hierüber werden durch die mangelhaften Stoffbildungen unmöglich gemacht.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00901389
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  • 5
    Electronic Resource
    Electronic Resource
    Electron microscopic demonstration of a particulate component in the glycocalyx (1970)
    Springer
    Cellular and molecular life sciences 26 (1970), S. 770-771 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung An der Oberfläche isolierter Glomerulus-Basalmembranen des Schweins konnten durch Gefrierätzung und durch Negativkontrastierung unregelmässig verteilte Partikel nachgewiesen werden. Sie werden als Reste der Glycocalyx von Endothel- beziehungsweise Epithelzellen angesehen und zeigen einen partikulären Aufbau dieser Kohlenhydratschicht an.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02232540
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  • 6
    Electronic Resource
    Electronic Resource
    Histochemie und Feinstruktur der Prosekretgranula in den Panethschen Zellen der Maus (1965)
    Springer
    Naturwissenschaften 52 (1965), S. 14-15 
    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/BF00631541
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  • 7
    Electronic Resource
    Electronic Resource
    Zur faziellen Entwicklung des subbetischen Juras in Südspanien (1967)
    Springer
    International journal of earth sciences 56 (1967), S. 973-992 
    Details
    ISSN: 1437-3262
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Abstract The facies development of the Jurassic in the subbetic realm of Spain shows many common features on the whole in spite of differences in detail. “Neritic limestone facies“ may be distinguished from “Nodular limestone facies“ and “Limestone-marl-facies“. This paper deals with the stratigraphie range of red nodular limestones and “Limonite Crusts“ as equivalents of the celtiberic “Boundary Oolites“. The occurrence ofNucleata, Pygope andPosidonia in the Subbetic is discussed. There are certain facies relations to the Jurassic of the adjacent celtiberic area and especially to the Jurassic of the Western and Southern Alps.
    Abstract: Résumé Les faciès dans le Jurassique subbétique montrent, malgré des différences dans les détails beaucoup de traits communs. Il faut cependant distinguer entre le « faciès des calcaires néritiques», le « faciès des calcaires noduleux» et le « faciès des marnes et calcaires». La distribution stratigraphique des calcaires noduleux rouges et des « croutes de limonite», qui représentent les équivalents des «oolites limitrophes» celtibériques, est discuté. On commente alors l'existence deNucleata, Pygope etPosidonia dans le Subbétique. On peut constater des relations plus ou moins nettes non seulement avec le Jurassique celtibérique, mais aussi, avant tout, avec le Jurassique alpin occidental et méridional.
    Notes: Zusammenfassung Die fazielle Entwicklung des subbetischen Juras weist trotz Differenzierung im einzelnen viele gemeinsame Züge auf. Grundsätzlich ist aber zwischen einer „Neritischen Kalk-Fazies“ einer „Knollenkalk-Fazies“ und einer „Kalk-MergelFazies“ zu unterscheiden. Auf die stratigraphische Verbreitung der Roten Knollenkalke und die „Limonitkrusten“ als Äquivalente der keltiberischen „Grenzoolithe“ wird näher eingegangen, das Auftreten vonNucleata, Pygope undPosidonia im subbetisehen Jura besprochen. Sowohl zum benachbarten keltiberischen Jura als auch zum west- und südalpinen Jura sind mehr oder weniger deutliche Beziehungen vorhanden.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01848775
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  • 8
    Electronic Resource
    Electronic Resource
    Die mesozoische Magnafazies-Abfolge in den nördlichen Anden (Peru, Ekuador, Kolumbien) (1980)
    Springer
    International journal of earth sciences 69 (1980), S. 875-891 
    Details
    ISSN: 1437-3262
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Abstract Over 100 sedimentary formations and groups are known from the epicontinental to continental Mesozoic (“Oriente Andino” sensu H.Bürgl) in the Andean region of Peru, Ecuador and Colombia. These lithostratigraphic (or facial) complexes are attached to 6 magnafacies-units which follow each other chronologically, thereby clearly evidencing a uniform paleogeographic-sedimentary development in the mentioned areas, although the geological structure of the Western respectively Coastal Cordilleras of the North (Colombia, Ecuador) is fundamentally different from that of the Southern ones (Peru, Chile).
    Abstract: Resumen Más de 100 grupos y formaciones sedimentarios des »Oriente Andino« (sensu H.Bürgl) en los Andes septentrionales (PerÚ, Ecuador, Colombia) están asociados a 6 unidades magnafaciales que se suceden cronológicamente. Este »Oriente Andino« abarca las cuencas sedimentarias de tipo epicontiental a continental de la época mesozoica. Se bosqueja así claramente, en las áreas mencionadas, una evolución paleogeográfica-sedimentológica bastante uniforme, aunque las estructuras geológicas de las Cordilleras Occidentales (o Costeras, respectivamente) de la parte septentrional (Colombia, Ecuador) se diferencian fundamentalmente de las del Sur (PerÚ, Chile).
    Notes: Zusammenfassung Die weit über 100 sedimentären Formationen und Gruppen im mesozoischen epikontinentalen bis kontinentalen „Oriente Andino“ der nördlichen Anden (Peru, Ekuador und Kolumbien) werden 6 zeitlich aufeinanderfolgenden Magnafazies-Einheiten zugeordnet. Dabei zeichnet sich deutlich eine einheitliche paläogeographisch-sedimentäre Entwicklung in den genannten Räumen ab, obwohl sich der geologische Bau der andinen West- bzw. Küstenkordilleren im Norden (Kolumbien, Ekuador) grundsätzlich vom Süden (Peru, Chile) unterscheidet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02104651
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  • 9
    Electronic Resource
    Electronic Resource
    Solar rotation and activity in the past and their possible influence upon the evolution of life (1981)
    Springer
    Earth, moon and planets 24 (1981), S. 399-405 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract It is proposed that the rotational angular momentum of the lower Main Sequence stars determines the intensity of their magnetic spot activity. As a consequence of this feedback coupling, the stellar rotation and the activity decay exponentially by magnetic braking of the induced stellar flare- and wind-activity. Therefore, the Sun should have rotated much faster and must have shown a very enhanced activity in its early history. This strong solar activity in the past could have had influenced the evolution of terrestrial life, and may explain the stagnation of maritime life for about 2×109 yr, the diversification of species during the Cambrian formation, and the land conquest by life in the upper Silurian system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00896905
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  • 10
    Electronic Resource
    Electronic Resource
    Anomalous dimensions in local and non-local light cone expansion (1982)
    Springer
    Czechoslovak journal of physics 32 (1982), S. 645-652 
    Details
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Anomalous dimensions of operator products are considered in the general case of non-diagonal matrix elements both in local and in non-local version of light cone expansion for quantum chromodynamics. Results are reviewed shortly.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01596709
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