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  • 11
    Electronic Resource
    Electronic Resource
    The Halos of May 1, 8 and 22 (1902)
    [s.l.] : Nature Publishing Group
    Nature 66 (1902), S. 223-223 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SINCE the publication in NATURE of the letters on these three phenomena, my attention has been directed by Prof. S. P. Thompson to the “Memoire sur les Halos,” by M. A. Bravais. The first of the above three halos, recorded by Prof. E. E. Barnard, is apparently new, unless the radius of one of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/066223b0
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  • 12
    Electronic Resource
    Electronic Resource
    A Remarkable Solar Halo (1902)
    [s.l.] : Nature Publishing Group
    Nature 66 (1902), S. 76-77 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ON Sunday, August 7, 1898, being in Norway, I was climbing, with a friend, the upper slopes of the Horntind, above Skogstad, in the well-known Valders route between Christiania and Laerdal, lat. 61° 15′ 30″, long. exactly 6° E. We had reached a height of about 4000 feet above sea level when we ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/066076c0
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  • 13
    Electronic Resource
    Electronic Resource
    Some Further Experiments on the X-Rays (1897)
    [s.l.] : Nature Publishing Group
    Nature 56 (1897), S. 316-317 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MESSRS. A. VOSMAER AND F. L. ORTT, in a paper kindly sent to me by the editor of NATURE, have arrived at the conclusion that the X-rays are more or less perfectly discharged particles. Others—Sir W. Crookes, for example—have suggested the material nature of the rays, and the only novel point in ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/056316b0
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  • 14
    facet.materialart.
    Unknown
    Dimensions and determinants of judgements of colour samples and a simulated interior space by architects and non-architects (1979)
    London, etc. : Periodicals Archive Online (PAO)
    British journal of psychology. 70 (1979) 231 
    Details
    ISSN: 0007-1269
    Topics: Psychology
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:0047-1979-070-00-000029
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  • 15
    Electronic Resource
    Electronic Resource
    Freeness Conditions for 2-Crossed Modules of Commutative Algebras (1998)
    Springer
    Applied categorical structures 6 (1998), S. 455-471 
    Details
    ISSN: 1572-9095
    Keywords: free 2-crossed modules ; free simplicial algebras
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract In this paper we give a construction of free 2-crossed modules. By the use of a ‘step-by-step’ method based on the work of André, we will give a description of crossed algebraic models for the steps in the construction of a free simplicial resolution of an algebra. This involves the introduction of the notion of a free 2-crossed module of algebras.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008686023366
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  • 16
    Electronic Resource
    Electronic Resource
    Freeness Conditions for Crossed Squares and Squared Complexes Dedicated to Professor Daniel Quillen on his Sixtieth Birthday (2000)
    Springer
    K-Theory 20 (2000), S. 345-368 
    Details
    ISSN: 1573-0514
    Keywords: crossed square ; squared complex ; free simplicial group
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract Following Ellis, we investigate the notion of totally free crossed square and related squared complexes. It is shown how to interpret the information in a free simplicial group given with a choice of CW-basis, in terms of the data for a totally free crossed square. Results of Ellis then apply to give a description in terms of tensor products of crossed modules. The paper ends with a purely algebraic derivation of a result of Brown and Loday.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1026535602325
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  • 17
    Electronic Resource
    Electronic Resource
    Alum Solution (1891)
    [s.l.] : Nature Publishing Group
    Nature 45 (1891), S. 29-29 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PERHAPS the following evidence of the practical superiority of potash alum solution to distilled water in adiathermancy, when the electric arc is the radiant and the “radiometer” a Crookes, may be of interest. The same glass-sided cell was used throughout, and the difference of voltage between ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/045029b0
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  • 18
    Electronic Resource
    Electronic Resource
    The X-Rays produced by a Wimshurst Machine (1896)
    [s.l.] : Nature Publishing Group
    Nature 55 (1896), S. 30-32 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN my two papers of June 4 and June 18 respectively, I proved the existence of non-homogeneity in the X-rays, and gave a simple method of strengthening and maintaining the discharge of these rays from an ordinary focus tube by means of a conductor wrapped round the part of the tube level with ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/055030c0
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  • 19
    Electronic Resource
    Electronic Resource
    First Visible Colour of Incandescent Iron (1892)
    [s.l.] : Nature Publishing Group
    Nature 45 (1892), S. 558-559 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] HAVING read in your number for March 24 (p. 484) a letter on the above subject, I thought it might prove interesting to try a similar experiment with the carbon filament of an ordinary incandescent lamp. That used was an Edison Swan 16 candlepower 80 volt, and the method employed to heat it was ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/045558c0
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  • 20
    Electronic Resource
    Electronic Resource
    Microscopic examination and fatty acid characterization of filamentous bacteria colonizing substrata around subtidal hydrothermal vents (1989)
    Springer
    Archives of microbiology 152 (1989), S. 64-71 
    Details
    ISSN: 1432-072X
    Keywords: Thiothrix sp. ; Beggiatoa sp. ; Sulfideoxidizing ; Polyunsaturated ; Fatty acids ; Inclusions ; Sheath ; Southern California ; Ultrastructure ; Sulfur
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Microscopic examination of the whitish mat that covered the substrata around subtidal hydrothermal vents at White Point in southern California revealed a “Thiothrix-like” bacterium containing sulfur inclusions as the dominant filamentous form in this microbial community. The matlike appearance developed as a result of the closely-packed manner inwhich the basal ends of the filaments were anchored to the substrate. The dominant phospholipid fatty acids of these filaments (16:0, 16:1w7c, 18:0, 18:1w7c) were similar to those recovered from a sample of Beggiatoa isolated from a spring in Florida. Filaments from both sources contained small quantities of C18 and C20 polyunsaturated fatty acids, as well. A larger but less abundant sheathless, filamentous form, which also contained sulfur inclusions and displayed a cell wall structure similar to a previously described Thioploca strain, also colonized the substrata around the subtidal mat. The preservation methods used in the preparation of thin-sections of the subtidal mat material were found to be inadequate for defining some key cellular structures of the large filaments. Nevertheless, the results demonstrate that the filamentous bacteria comprising the microbial mat in the vicinity of the subtidal vents exhibit some of the features of the free-living filamentous microorganisms found in deep-water hydrothermal areas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00447013
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