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  • Artikel  (3)
  • American Association for the Advancement of Science (AAAS)  (3)
  • 2000-2004  (3)
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  • 2001  (3)
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  • Artikel  (3)
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  • 1
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    Candidate number 2: proxy representation (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2001-10-16
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beck, A -- New York, N.Y. -- Science. 2001 Oct 12;294(5541):306.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11599537" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
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    Extremely large variations of atmospheric 14C concentration during the last glacial period (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2001-05-12
    Beschreibung: A long record of atmospheric 14C concentration, from 45 to 11 thousand years ago (ka), was obtained from a stalagmite with thermal-ionization mass-spectrometric 230Th and accelerator mass-spectrometric 14C measurements. This record reveals highly elevated Delta14C between 45 and 33 ka, portions of which may correlate with peaks in cosmogenic 36Cl and 10Be isotopes observed in polar ice cores. Superimposed on this broad peak of Delta14C are several rapid excursions, the largest of which occurs between 44.3 and 43.3 ka. Between 26 and 11 ka, atmospheric Delta14C decreased from approximately 700 to approximately 100 per mil, modulated by numerous minor excursions. Carbon cycle models suggest that the major features of this record cannot be produced with solar or terrestrial magnetic field modulation alone but also require substantial fluctuations in the carbon cycle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beck, J W -- Richards, D A -- Edwards, R L -- Silverman, B W -- Smart, P L -- Donahue, D J -- Hererra-Osterheld, S -- Burr, G S -- Calsoyas, L -- Jull, A J -- Biddulph, D -- New York, N.Y. -- Science. 2001 Jun 29;292(5526):2453-8. Epub 2001 May 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉NSF-Arizona Accelerator Mass Spectrometry Facility, Department of Physics, University of Arizona, Tucson, AZ 85721, USA. wbeck@physics.arizona.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11349137" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    Miniature genome in the marine chordate Oikopleura dioica (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2001-12-26
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seo, H C -- Kube, M -- Edvardsen, R B -- Jensen, M F -- Beck, A -- Spriet, E -- Gorsky, G -- Thompson, E M -- Lehrach, H -- Reinhardt, R -- Chourrout, D -- New York, N.Y. -- Science. 2001 Dec 21;294(5551):2506.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Sars [corrected] Centre for Marine Molecular Biology, Thormo- hlensgt. 55, 5020 Bergen, Norway.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11752568" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Chromosomes, Artificial, Bacterial ; Ciona intestinalis/genetics ; Cloning, Molecular ; DNA, Complementary ; DNA, Intergenic ; Expressed Sequence Tags ; Genes ; *Genome ; Introns ; Male ; Repetitive Sequences, Nucleic Acid ; Sequence Analysis, DNA ; Spermatozoa/chemistry ; Urochordata/anatomy & histology/*genetics/growth & development
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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    AKTUELLE ARTIKEL
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