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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature medicine 13 (2007), S. 211-217 
    ISSN: 1546-170X
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] The role of autoantibodies in the pathogenesis of multiple sclerosis (MS) and other demyelinating diseases is controversial, in part because widely used western blotting and ELISA methods either do not permit the detection of conformation-sensitive antibodies or do not distinguish them from ...
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 168 (1951), S. 391-391 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The line, if present, ought to be an emission line, since the temperature in the corona is decreasing with depth. Collisions would not prevent the emission of the line : for its excitation potential is so very low that half the hydrogen atoms are always on the excited level. Calculation shows that ...
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 369 (1994), S. 294-296 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The IIRF can be probed by looking for absorption of very high-energy /-rays in the spectra of blazars3. The absorption process involves the collision of a /-ray photon from the blazar with a photon of the IIRF. In the collision, both the /-ray and the infrared photon disappear and their energy ...
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 326 (1987), S. 567-569 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The binary X-ray source Vela X-l was discovered by the Uhuru and SAS 3 satellites1 during 1975 and has been continuously monitored since then by a variety of satellites2'3. The optical counterpart was identified4 as the B supergiant HD77581 at distance of (1.9 ±0.2) kpc from the Earth. The ...
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 209 (1966), S. 974-977 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] FOLLOWING the detection of anomalously excited OH A emission at 1,665 and 1,667 Mc/s from the vicinity of several thermal radio sources by Weaver, Williams, Dieter and Lum1, Weinreb, Meeks, Carter, Barrett and Rogers2 reported observations of linear polarization in the 1,665-Mc/s spectrum of the OH ...
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 441 (2006), S. 506-508 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Arthropod head segments offer a paradigm for understanding the diversification of form during evolution, as a variety of morphologically diverse appendages have arisen from them. There has been long-running controversy, however, concerning which head appendages are homologous among arthropods, ...
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 437 (2005), S. 440-443 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The human Rad50/Mre11/Nbs1 complex (hR/M/N) functions as an essential guardian of genome integrity by directing the proper processing of DNA ends, including DNA breaks. This biological function results from its ability to tether broken DNA molecules. hR/M/N's dynamic molecular architecture ...
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 222 (1969), S. 933-937 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A versatile digital autocorrelation spectrometer designed and built at Jodrell Bank is described, together with some examples of observations made with the new ...
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  • 9
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 202 (1964), S. 203-204 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Patients suffering from various kinds of cancer with metastasis served as volunteers for these tests. Most of them received radiotherapy before or during the test period. This therapy was not administered to the skin being used to determine the skin catalase activity. Known inhibitors of ...
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 225 (1970), S. 622-623 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Observations were made on August 16, 1969, with the 250-foot radio telescope which had a primary halfpower beamwidth for this experiment of 13' 18' arc. It has a further response in a beam 30' arc in radius which contains about 30 per cent of the power. The new 256 channel digital autocorrelation ...
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