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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    BBA - Biochimica et Biophysica Acta 65 (1962), S. 551-552 
    ISSN: 0006-3002
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    BBA - Biochimica et Biophysica Acta 78 (1963), S. 540-542 
    ISSN: 0006-3002
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 0167-4889
    Keywords: Dictyostelium discoideum ; Metabolic state ; Protein phosphorylation ; Succinic thiokinase ; cyclic AMP stimulation
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 22 (1966), S. 853-854 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A new unit for the rapid freezing of tissues in liquid nitrogen is described.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    International journal of earth sciences 67 (1978), S. 424-453 
    ISSN: 1437-3262
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Abstract The Geological Institute of Bonn University since 1975 investigates in connection with DSDP/IPOD the Cretaceous of the Atlantic coastal basin in south-western Morocco. 30 main stratigraphic sections and numerous auxiliary ones were taken along several traverses, running along distances of 150 to 200 km in west-east direction. The recognized epicontinental facies-pattern along the traverse of the southern High Atlas mountain range depicts clearly, that we cut here the critical region of intertonguing marine, fine-clastic-carbonaceous sediments and continental detritic deposits. The littoral zone successively progrades with three major transgressions (Neocomian, Upper Aptian, Turonian) towards the African Continent. Sedimentation processes, stratigraphy, paleomagnetics, geochemistry, sedimentology and paleogeography are investigated, taking selected horizons on one hand and complete stratigraphic columns on the other. A new sedimentation model reflecting transgression and regression events in the Cretaceous “Atlas Gulf” show some probabilities of eustatic sea-level changes. There are similarities between the Atlas Gulf and other coastal basins on both sides of the Atlantic Ocean. There are certain relations between the sedimentary record of the proand regrading littoral zone on the continent and in the nearby deep sea deposits. There is an exciting coincidence between the stratigraphie succession of the downwarping Atlas Gulf and the sedimentary cover of the interior of Africa, especially the Mesozoic Sahara Basin.
    Abstract: Résumé L'institut géologique de l'université de Bonn fait des recherches géologiques dans le Crétacé du Bassin Côtier Atlantique dans le sudouest du Maroc. Ces études font partie du «Deep-Sea-Drilling-Project» (DSDP), programme de recherche international. 30 coupes principales et un grand nombre de coupes partielles sont levées suivant trois tracés pénétrant de 150–200 km vers l'est, à partir de la côte. Un schéma des facies dressé au sud du Hautatlas, met en évidence qu'il s'agit d'une région montrant le passage complet de sédiments marins épais argilo-carbonatés à des dépôts terrestres. La zone littorale pénètre par étapes de plus en plus dans la région continentale au cours de trois grandes transgressions (Néocomien, Aptien supérieur, Turonien). Ces transgressions sont interrompues par des périodes de régression. Dans le but d'illustrer les modalités de la sédimentation accompagnant ces événements, les études portent de façon détaillée sur la stratigraphie, le paléomagnétisme, la géochimie, la sédimentologie et la paléogéographie d'horizons choisis et de parties entières de la colonne stratigraphique. Un modèle de sédimentation est conçu pour la région du Golfe d'Atlas au Crétacé. Les rapports paléogéographiques entre ce golfe et les bassins de sédimentation côtiers d'Amérique et d'Afrique d'une part, les dépôts abyssaux de l'Atlantique d'autre part et finalement le Mésozoique du Sahara sont ensuite discutés.
    Notes: Zusammenfassung Im Rahmen des deutschen Beitrages zum internationalen Deep Sea Drilling Project (DSDP) untersucht das Geologische Institut der Universität Bonn seit 1975 die Kreide des atlantischen Küstenbeckens in Südwestmarokko. 30 Hauptprofile sowie viele Zwischen- und Teilprofile wurden entlang 150–200 km landeinwärts verlaufenden Trassen aufgenommen. Aus dem Faziesschema am Südrand des Hohen Atlas geht hervor, daß hier der Verzahnungsbereich mächtiger mariner, pelitisch-karbonatischer Sedimente mit festländischen Ablagerungen vollständig erfaßt wird. Die Litoralzone rückt vom Liegenden zum Hangenden in drei ausgreifenden Transgressionen (Neocom, höheres Apt, Turon) — unterbrochen von Regressionen — schrittweise gegen den Kontinent vor. Mit Zielrichtung auf die damit verbundenen Sedimentationsabläufe werden Stratigraphie, Paläomagnetismus, Geochemie, Sedimentologie und Paläogeographie einzelner ausgewählter Horizonte und ganzer Schichtsäulen eingehend untersucht. Für den einheitlichen Sedimentationsraum eines kreidezeitlichen Atlas-Golfs wird ein Sedimentationsmodell entwickelt. Paläogeographische Beziehungen zu den Küstenbecken Amerikas und Afrikas, zu Tiefseeablagerungen des Atlantischen Ozeans und zum Sahara-Mesozoikum werden diskutiert.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 10 (1954), S. 508-508 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A new method to obtain cells and tissue ingredients almost unalterated is described. The tissue is emulsified in an indifferent oil in which process the different histological structures are separated into the different droplets. Separating similar droplets, it is possible to gain single cells and tissue components.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 16 (1960), S. 165-167 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary For the isolation of chloroplasts in non-aqueous media the following organic solvents are suitable: pentane, hexane, heptane, petroleum ether and carbon tetrachloride. These solvents cause a minimum loss of lipids. The loss of lipids and some lipid components of frozendried and ground shoots fromElodea canadensis during the isolation of chloroplasts in non-aqueous media (petroleum ether b. r. 60–80°C and petroleum ether-carbon tetrachloride mixtures) is reported.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 19 (1963), S. 406-407 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A method is described for separating the white elements of cow's blood. Addition of water causes a complete haemolysis. About 30 sec later, isotonic conditions are restored by admixing appropriate concentrations of physiological solutions. Differential centrifugation follows for separating the leucocytes.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 20 (1964), S. 607-608 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A method is described for the isolation of chloroplasts from powder of frozen-dried leaves without using any liquids.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 22 (1966), S. 265-266 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A new unit for rapid freezing of tissues and liquids in liquid nitrogen is described.
    Type of Medium: Electronic Resource
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