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  • Nature Publishing Group  (3,541)
  • 1985-1989  (3,541)
  • 1960-1964
  • 1955-1959
  • 1985  (3,541)
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  • 1985-1989  (3,541)
  • 1960-1964
  • 1955-1959
Year
  • 1
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    Anomalous 13C enrichment in modern marine organic carbon (1985)
    Nature Publishing Group
    In:  Nature, 315 (6016). pp. 216-218.
    Details
    Publication Date: 2016-10-26
    Description: Marine organic carbon is heavier isotopically (13C enriched) than most land-plant or terrestrial organic C1. Accordingly, δ 13C values of organic C in modern marine sediments are routinely interpreted in terms of the relative proportions of marine and terrestrial sources of the preserved organic matter2,3. When independent geochemical techniques are used to evaluate the source of organic matter in Cretaceous or older rocks, those rocks containing mostly marine organic C are found typically to have lighter (more-negative) δ 13C values than rocks containing mostly terrestrial organic C. Here we conclude that marine photosynthesis in mid-Cretaceous and earlier oceans generally resulted in a greater fractionation of C isotopes and produced organic C having lighter δ 13C values. Modern marine photosynthesis may be occurring under unusual geological conditions (higher oceanic primary production rates, lower P CO2) that limit dissolved CO2 availability and minimize carbon isotope fractionation4.
    Type: Article , PeerReviewed
    Format: text
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  • 2
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    Does the ocean–atmosphere system have more than one stable mode of operation? (1985)
    Nature Publishing Group
    In:  Nature, 315 (6014). pp. 21-26.
    Details
    Publication Date: 2016-06-10
    Description: The climate record obtained from two long Greenland ice cores reveals several brief climate oscillations during glacial time. The most recent of these oscillations, also found in continental pollen records, has greatest impact in the area under the meteorological influence of the northern Atlantic, but none in the United States. This suggests that these oscillations are caused by fluctuations in the formation rate of deep water in the northern Atlantic. As the present production of deep water in this area is driven by an excess of evaporation over precipitation and continental runoff, atmospheric water transport may be an important element in climate change. Changes in the production rate of deep water in this sector of the ocean may push the climate system from one quasi-stable mode of operation to another.
    Type: Article , PeerReviewed
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  • 3
    Electronic Resource
    Electronic Resource
    The cause of university education (1985)
    [s.l.] : Nature Publishing Group
    Nature 318 (1985), S. 596-596 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR-The way in which the political ideology of a democratic government can make or mar the cause of higher education or university autonomy is best illustrated in the action of the governments of France (Naturells, 172-173 & 316, 5; 1985) and Britain (Nature 315, 265; 1985). In France, the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/318596a0
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  • 4
    Electronic Resource
    Electronic Resource
    Membrane proteins: Structure of a bacterial photosynthetic reaction centre (1985)
    [s.l.] : Nature Publishing Group
    Nature 318 (1985), S. 598-599 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ON PAGE 618 of this issue J. Deisenhofer et al. report the first structure at atomic resolution of a protein - or, more accurately, a complex of several proteins - from a biological membrane. Not only is it a superb structure but since it is of a photo-synthetic reaction centre complex (from the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/318598a0
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  • 5
    Electronic Resource
    Electronic Resource
    Biophysics: XANES spectroscopy and the crystallographic imperative (1985)
    [s.l.] : Nature Publishing Group
    Nature 318 (1985), S. 602-602 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PERHAPS nowhere in the determination of molecular structure is precision more at a premium than in the case of metalloproteins, so that any method that promises to enhance or improve on single crystal protein crystallography is worth investigating. X-ray near-edge structure (XANES) spectroscopy is ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/318602a0
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  • 6
    Electronic Resource
    Electronic Resource
    Astrophysics: Bipolar wind from young stars (1985)
    [s.l.] : Nature Publishing Group
    Nature 318 (1985), S. 604-604 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE molecular cloud L1551 contains the best example of a collimated bipolar high-velocity molecular outflow driven by a young stellar object. Now high-resolution I2CO observations have directly demonstrated the postulated windswept cavity and shell in this cloud (Snell, R.L. & Schloerb, P.P. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/318604a0
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  • 7
    Electronic Resource
    Electronic Resource
    How did we get to here from there? (1985)
    [s.l.] : Nature Publishing Group
    Nature 318 (1985), S. 607-608 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ON August 6, 1945, I was at a camp at Titchfield, Hampshire, England, when I heard the news that an atomic bomb had been dropped on Japan. A year later I began my studies in physics for the DPhil. at Oxford. There, in the Clarendon Laboratory, I met some of those who participated in the atomic bomb ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/318607a0
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  • 8
    Electronic Resource
    Electronic Resource
    100 years ago (1985)
    [s.l.] : Nature Publishing Group
    Nature 318 (1985), S. 603-603 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE CONTINUITY OF THE GERM-PLASMA CONSIDERED AS THE BASIS OF A THEORY OF HEREDITY THE present essay deals not with the entire subject of heredity, but with the fundamental question, How is it that a single cell of the body unites within itself the entire tendencies of inheritance of the whole ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/318603a0
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  • 9
    Electronic Resource
    Electronic Resource
    A 12.6-ms pulsar in Cygnus X-3 (1985)
    [s.l.] : Nature Publishing Group
    Nature 318 (1985), S. 642-644 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Cyg X-3 has been observed many times by ?-ray telescopes at TeV energies1"5 and more recently by cosmic-ray detectors at PeV energies6"7. There is a consensus that the TeV emission is confined to two short periods in the 4.8-h X-ray modulation cycle8, with the stronger period occurring about X-ray ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/318642a0
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  • 10
    Electronic Resource
    Electronic Resource
    Polymerization of silicate anions in solutions at low concentrations (1985)
    [s.l.] : Nature Publishing Group
    Nature 318 (1985), S. 649-651 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We determined that a spectrum of Na- or Ca-silicate could be obtained at very low Si concentrations and that the 'fingerprint approach (Fig. 1) is applicable to the spectra obtained because they have lines distinctly placed, well separated, and of adequate intensity to determine the frequencies at ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/318649a0
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