Search Results - (Author, Cooperation:S. Schouten)

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  1. 1
    Staff View
    Publication Date:
    2011-02-26
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Calcium/analysis ; Carbon/analysis ; Carbon Dioxide/analysis ; *Climate ; Droughts/*history/statistics & numerical data ; Fossils ; Fresh Water ; Geologic Sediments/analysis/chemistry ; Global Warming/statistics & numerical data ; History, Ancient ; Human Activities ; New Mexico ; Plant Development ; Plants/metabolism ; Pollen/chemistry ; Rain ; Seasons ; Soil Microbiology ; Temperature ; Time Factors
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    Publication Date:
    2012-08-04
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Animals ; Antarctic Regions ; Atmosphere/chemistry ; Carbon Dioxide/analysis ; Cell Respiration ; Ecosystem ; Geologic Sediments/chemistry ; Greenhouse Effect/*history ; History, Ancient ; Human Activities ; Lipids/analysis ; Models, Theoretical ; Photosynthesis ; Pollen ; Reproducibility of Results ; Seasons ; Spores/isolation & purification ; *Temperature ; Trees/growth & development ; *Tropical Climate
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Witkowski, C. R., Weijers, J. W. H., Blais, B., Schouten, S., Sinninghe Damste, J. S.
    American Association for the Advancement of Science (AAAS)
    Published 2018
    Staff View
    Publication Date:
    2018-11-29
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Electronic ISSN:
    2375-2548
    Topics:
    Natural Sciences in General
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  4. 4
    Staff View
    ISSN:
    0146-6380
    Keywords:
    desulphurization ; geomacromolecules ; nickel boride ; organic sulphur compounds
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Chemistry and Pharmacology
    Geosciences
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  5. 5
    Staff View
    ISSN:
    0146-6380
    Keywords:
    diagenesis ; hydrosulphurization ; lipids ; organic sulphur compounds ; polysulphides
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Chemistry and Pharmacology
    Geosciences
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  6. 6
    Staff View
    ISSN:
    0146-6380
    Keywords:
    chemical degradation ; geomacromolecules ; methyl iodide ; methylthioethers ; organic sulphur compounds
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Chemistry and Pharmacology
    Geosciences
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  7. 7
    Schouten, S. L.
    Springer
    Published 1935
    Staff View
    ISSN:
    1572-9699
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  8. 8
    Staff View
    ISSN:
    1432-1793
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Notes:
    Abstract  Protozoa are known for their intermediary trophic role in transferring organic matter from small size planktonic particles to mesozooplankton. This study concentrates on the possible addition of biochemical value during this transfer, by new production of compounds that are essential in copepod food. In laboratory experiments, copepods could not be raised on a diet of the chlorophycean Dunaliella sp., though they readily consumed this alga. Dunaliella sp. contained all essential amino acids, but was deficient in highly unsaturated fatty acids and in sterols. In contrast to copepods, the heterotrophic dinoflagellate Oxyrrhis marina grew well on Dunaliella sp., producing significant amounts of the long-chain fatty acids docosahexaenoic acid and eicosapentaenoic acid, in addition to cholesterol and brassicasterol. Using this O. marina grown on Dunaliella sp. to feed Temora longicornis and Pseudocalanus elongatus, both copepod species rapidly developed from young nauplius larvae to maturity on the dinoflagellate diet. Hence, in this experimental food-chain the inadequate chlorophycean food was biochemically upgraded by the protozoan to high-quality copepod food. The results indicate that highly unsaturated fatty acids and/or sterols are essential compounds, which can be produced by protozoans. Due to their intermediate size, the mechanism of trophic upgrading by protozoans may bridge the gap of essential nutrients between the microbial loop and higher trophic levels.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  9. 9
    Lotsy ; Sirks ; Benders ; Herwerden, M. A. v. ; Schouten, S. L.
    Springer
    Published 1920
    Staff View
    ISSN:
    1573-6857
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  10. 10
    Goedewaagen ; Schouten, S. L. ; Kohlbrugge ; Westrienen, A. ; Lek ; Tjebbes
    Springer
    Published 1919
    Staff View
    ISSN:
    1573-6857
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  11. 11
    Staff View
    ISSN:
    1573-6857
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses