ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Description / Table of Contents: The Devonian was a peculiar period, characterized by simplified plate tectonic configurations, climatic overheating and widely flooded continents. The bloom of fishes and ammonoids, extensive reef complexes, and the conquest of land indicate major biosphere innovations, punctuated by many global events, including two of the biggest mass extinctions. The Devonian was the first system for which subdivisions were formally defined. This was achieved by significant advances in pelagic biostratigraphy. The chronostratigraphic framework and interdisciplinary techniques allow us to correlate intervals or sudden events across facies boundaries, in order to reconstruct the sedimentary and evolutionary history of the system with highest precision. This volume honors the lifetime stratigraphic achievements of Michael Robert House (1930-2002). Based on case studies from Europe, North Africa and North America, it shows how the combination of biostratigraphy, chemostratigraphy, magnetostratigraphy, sequence stratigraphy and event stratigraphy can contribute to a much deeper understanding of both regional and global environmental change.
    Pages: Online-Ressource (280 Seiten)
    ISBN: 9781862392229
    Language: English
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 11 (1964), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. A comparison of the effects upon trypsin-dispersed chick liver cell cultures of a virulent (Jones' Barn) and a non-pathogenic (Lahore) strain of Trichomonas gallinae revealed significant differences in behavior of the parasites in cell cultures and in the response of such cultures. The virulent strain multiplies faster in nutrient medium in the presence of cell cultures; stimulates great activity of the macrophages; is not handled effectively by these phagocytes in which it can multiply causing their ultimate destruction; is found significantly more often within the cytoplasm of the liver epithelial and fibroblast-like cells; causes very much more profound degenerative changes in all the cells, both invaded and non-invaded; and suppresses effectively the division rate of the fibroblast-like cells. On the other hand, the nonpathogenic strain multiplies at a lower rate in the presence of cell cultures; stimulates less activity of the macrophages; is handled readily by these phagocytes in which it multiplies only very rarely, if ever; is found seldom within the liver epithelial and fibroblast-like cells; causes far less degeneration of all the cell culture elements; and suppresses significantly less the dlvision rate of the fibroblast-like cells.At the end of a 20–24 hour period typically only a few living cells are left in cultures exposed even to attenuated isolates of the virulent strain, whereas those inoculated with the mild one do not show much degeneration even after 28 hours. The effects upon the cell cultures of cell-free filtrates of actively growing trichomonad cultures are relatively minor, but the changes caused by the filtrates of cultures of Jones' Barn strain appear to be more extensive than those caused by similar filtrates of Lahore strain.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 82 (1960), S. 2164-2166 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A METHOD for measuring the affinity of volatile organic compounds for free electrons in the vapour phase has recently been described1. Using this method it was found that most classes of hydrocarbons had little or no affinity for electrons with thermal energies; exceptions to this rule were, ...
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Medical & biological engineering & computing 1 (1963), S. 293-303 
    ISSN: 1741-0444
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Description / Table of Contents: Résumé Aperçu de la bibliographie traitant des effets biologiques des champs magnétiques appliqués. Les effets sur lesquels il est rapporté varient suivant la nature du champs en question et la durée de l'application. La création de magnétophosphènes par l'application de champs magnétiques (d'une certaine fréquence) est un phénomène connu. La question principale semble, à l'heure actuelle, être le mode d'action responsable de ce phénomène. L'expérience a démontré que des champs statiques non uniformes, moyens à très forts, influent sur des tissus à croissance rapide. Des champs statiques dont la force atteint approximativement celle du champ magnétique terrestre, provoquent des modifications dans le déroulement de cycles biologiques.
    Abstract: Zusammenfassung Ubersicht über die Literatur, welche die bilogischen Wirkungen angelegter Magnetfelder behandelt. Die Auswirkungen, über die berichtet wird, ändern sich je nach dem einwirkenden Feld bzw. der Wirkungsdauer des Feldes. Die Erzeugung von Magnetophosphenen durch Einkung von Wechselfeldern (bestimmter Frequenzen) ist eine bekannte Erscheinung. Gegenwärtig scheint die Hauptfrage die Wirkungsweise zu sein, welche diese Erscheinung auslöst. Mittlerè bis sehr starke, uneinheitliche statische Felder haben erwiesenermaßen Wirkungen auf schnell wachsende Gewebe. Statische Felder, deren Stärken ungefähr an die des Erdfeldes heranreichen sollen Änderungen im Ablau biologischer Zyklen hervorrufen.
    Notes: Abstract The literature relevant to the biological effects of applied magnetic fields has been reviewed. Reported effects vary with the type of field applied and the duration of application. The production of magneto phosphenes by the application of alternating fields (of certain frequencies) is a well accepted phenomenon. The major question, at this time, seems to be the mode of action responsible. Medium to high strength, non-uniform, steady-state fields have well documented effects upon rapidly growing tissues. Steady-state fields with strengths approximating the natural geomagnetic field are reported to produce alterations in the pattern of biological cycles.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Publication Date: 2007-11-21
    Description: The Givetian pelagic and dysoxic outer shelf facies of the Dra Valley (SW Morocco) yielded as minor benthic faunal elements a number of stringocephalid and uncitid brachiopods that allow a precise correlation of these marker brachiopods with the regional, detailed goniatite zonation. In a reverse situation, the predominant neritic shallow-water succession of the Bergisch Gladbach area (Rhenish Massif, Germany), which is characterized by a detailed succession of stringocephalids and Uncites, has yielded rare and new Middle Givetian goniatite species. These findings allow, with some help of conodont data, neriticpelagic correlations within and between widely separated basins. New species are Tornoceras n. sp. from the Buchel Formation (with coloration remains), Trevoneites' paffrathensis n. sp. from the Lower Plattenkalk Formation, and Maenioceras heinorum n. sp. from the Hornstein Member. New material of stringocephalids and Uncites is described from the Dra Valley. The identical, well-defined range of Uncites (U.) gryphus gryphus in the lower to middle parts of the Middle Givetian of the Dra Valley and Rhenish Massif underscores the stratigraphical significance of this genus that was widely distributed in Europe, northern Gondwana, the Urals, and Central and Eastern Asia.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Publication Date: 2007-11-21
    Description: Two pelagic successions near Ain Jemaa (Oulmes region, Moroccan Meseta) are dated by conodonts and ammonoids and provide new data on the discontinuous Middle to Upper Famennian faunal and facies evolution in the region. Upper Devonian shales and nodular limestones are assigned to the new Bou Gzem Formation, which is subdivided into three members. The Upper Member consists of black shales that are correlated with the globally widespread, transgressive black shale interval of the Hangenberg Event. The overlying quartzites are interpreted as prodeltaic deposits and assigned to the new Taarraft Formation that probably correlate with the major regressive phase of the Hangenberg Event. Contemporaneous ( Strunian') coarse siliciclastics have a wide distribution in different structural units of the Meseta. Both studied sections display a long sedimentary gap but of different extent at the base of the black shales. Comparison with other regions of Hercynian Morocco suggest an influence of Eohercynian tectonics on sedimentation, leading to extreme condensation and/or non-deposition, whilst other Meseta areas show evidence of contemporaneous reworking on uplifted structural highs and massive shedding of mass flows, conglomerates and turbidites into adjacent pelagic basins. Data from Oulmes and other Meseta regions suggest a timing of tectophases as early Middle Famennian (starting within the marginifera Zone) and Upper Famennian (starting within the Middle expansa Zone), interrupted by transgressive pulses of the global Annulata and Dasberg Events.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    facet.materialart.
    Unknown
    In:  Geological Society Special Publication 314: 131-148.
    Publication Date: 2009-04-30
    Description: Emsian to Frasnian crinoids are described from pelagic facies of the eastern part of the Dra Valley (Tata area), western Anti-Atlas Mountains, southern Morocco. The crinoids show only minor relationship with previously described crinoids from the Tafilalt and Ma'der areas of the eastern Anti-Atlas. The differences are judged to reflect the different environments of these areas. The Dra Valley hexacrinids show greater affinity with European faunas, whereas the amabilicrinids show greater affinity with North American taxa. New taxa described are Hexacrinites chenae sp. nov., Dracrinus crenulatus gen. and sp. nov., Coquinacrinus revimentus gen. and sp. nov, and Embolocrinus quadruus gen. and sp. nov.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Publication Date: 2005-08-05
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Publication Date: 1960-05-01
    Print ISSN: 0002-7863
    Electronic ISSN: 1520-5126
    Topics: Chemistry and Pharmacology
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...