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  • Nature Publishing Group  (3,534)
  • 1975-1979  (3,534)
  • 1978  (3,534)
  • 1
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    Nature Publishing Group
    In:  Nature, 275 (5680). pp. 547-549.
    Publication Date: 2019-06-20
    Description: THE rare deep-sea octopod Cirrothauma murrayi Chun 1910 was first described from a single specimen caught during the Michael Sars Expedition of 1910 (ref. 1). Until now it has been caught only four more times2. We describe here three specimens of this species that were recently caught during biological cruises of RRS Discovery (Fig. 1). All of these animals, including the Discovery ones, have been caught at depths of more than 1,500 m, except one that was dip-netted through the ice of the Arctic Ocean3.
    Type: Article , PeerReviewed
    Format: text
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  • 2
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    Nature Publishing Group
    In:  Nature, 275 (5680). pp. 536-538.
    Publication Date: 2018-01-22
    Description: THE Sierra Leone Rise, located in the east equatorial Atlantic, forms a discontinuous chain of seamounts as shallow as 2 km extending with a general NE–SW trend from near the Sierra Leone coast of Africa, to the St Paul fracture zone near the Mid-Atlantic Ridge (Fig. 1). The origin of this feature has remained a topic of discussion. Sheridan et al.1 have hypothesised that the Sierra Leone Rise is a volcanic structure formed at the beginning of the opening of the Atlantic in the early Cretaceous period. The twin features of the Sierra Leone and the Ceara Rises are probably of oceanic origin and were created 80 Myr ago or later in their present-day position with respect to Africa and South America2. The Atlantic ocean exhibits several similar aseismic structures which appear symmetrically oriented with respect to the mid-oceanic ridge, such as the Walvis–Rio Grande Rise and the Iceland Faeroes–Iceland Greenland Ridges. These structures are volcanic edifices having a composition similar to that found in their associated islands3–7. Deep sea drilling of the Ceara Rise8,9 penetrated a basaltic basement of the upper Cretaceous period (Maestrichtian) (Leg 39, Site 354). Similarly, a DSDP hole (Leg 41, Site 366) on the Sierra Leone Rise, penetrated sediments of the same period, without reaching basement10. We report here the discovery of alkali-rich volcanics in an area of the Sierra Leone Rise. The sediment overlying the rock fragments is aged ∼45 Myr.
    Type: Article , PeerReviewed
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  • 3
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    Nature Publishing Group
    In:  Nature, 272 (5648). pp. 43-46.
    Publication Date: 2016-09-02
    Description: The past 20,000 yr have witnessed tremendous climatic changes, a glacial maximum at about 18,000 yr BP and a climatic optimum centred on about 6,000 yr BP, both of which mark extreme situations for the Quaternary. This paper attempts to show that active sand dunes were extensive 18,000 yr ago. Conversely, it seems that sand dunes were generally dormant 6,000 yr ago. Thus the former textbook concept1,2 of an arid climatic optimum and a pluvially active glacial maximum is reversed.
    Type: Article , PeerReviewed
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 676-676 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A. G. OGSTON COMMENTS-How did I come to make my original discovery? My undergraduate training was in pure chemistry, with a strong preference for physical chemistry, and my first research was on the conductivities of dilute electrolyte solutions in Sir Harold Hartley's laboratory in Balliol. It was ...
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 694-695 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Simple calculations show that the number of possible frequency channels is so large that a search is not realistic, and we can assume that another party wishing to communicate would also consider this unpractical. Thus we need to predict the other party's decisions, and we can rely only on the ...
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 697-698 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] To obtain a quantitative measure of surface located iron metal, a mild specific leaching agent was used. Although X-ray photoelectron spectroscopy (XPS)6,7 may distinguish between Fe(II) and Fe(0) at depths 〈 20 Å, this technique is not quantitative. Fe(0) is readily dissolved in a ...
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 705-707 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] All four fossils were recovered from quarries in unconsoli-dated channel sands of the 'Upper Fossil Wood Zone', Jebel Quatrani Formation. This formation has been radiometrically dated as 〉26 Myr old5. All four bones are undistorted but broken so that they preserve varying portions of the distal ...
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 703-704 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Worked flint is the most abundant source of evidence for human activity before the advent of pottery-making cultures, and any information which can be deduced from it regarding its technology and date of fabrication is of considerable archaeological interest. Excavations frequently produce flint ...
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  • 9
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 707-708 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Scanning electron micrographs showing two views of conjoined twin isolated on the twelfth day from a female injected with vincristine sulphate on the seventh day of gestation. A single head and thorax and two complete vertebral columns may be seen. A small round mass of tissue (arrowed) was ...
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 713-715 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Table 1 Agglutinin titres of anti-C4, anti-C3, anti-Ch and anti-Rg with red cells coated with complement Source of complement Ch, Rg phenotype LIS % sucrose Anti-C4c Anti-C4d Antiserum Anti-C3b Anti-C3d Anti-Ch Anti-Rg EDTA plasma Ch+,Rg + 10 0 0 0 0 0 0 ACD plasma Ch+,Rg + 10 〉 10,000 〉 1,600 〉 ...
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