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  • 1985-1989  (46)
  • 1980-1984  (49)
  • 1975-1979  (50)
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  • 1
    Electronic Resource
    Electronic Resource
    Complexation of fibronectin with tissue transglutaminase (1989)
    s.l. : American Chemical Society
    Biochemistry 28 (1989), S. 628-635 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00428a032
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  • 2
    Electronic Resource
    Electronic Resource
    The Marl Slate: a model for the precipitation of calcite, dolomite and sulphides in a newly formed anoxic sea (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 34 (1987), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Detailed studies of a new, complete Marl Slate core in South Yorkshire have provided information on isotopic (δ13C, δ18O, δ34S) and geochemical variations (trace elements and C/S ratio) which enable the formulation of a model for carbonate and sulphide precipitation in the Late Permian Zechstein Sea. Calcite and dolomite are intimately associated; the fine lamination, organic character and absence of benthos in the sediments are indicative of anoxic conditions. Lithologically the core can be divided into a lower, predominantly sapropelic Marl Slate (2 m) and an upper Transition Zone (0·65 m) of alternating sapropel and calcite-rich and dolomite-rich carbonates.C/S ratios are 2·22 for the Marl Slate and 1·72 for the Transition Zone respectively, both characteristic of anoxic environments. δ18O in the carbonates shows a large and systematic variation closely mirrored by variations in calcite/dolomite ratio. The results suggest a fractionation factor equivalent to a depletion of 3·8% for 18O and 1·5% for 13C in calcite. The δ34S values of pyrite are isotopically light (mean value = - 32·7%) suggesting a fractionation factor for the Marl Slate of almost 44%, typical of anoxic basins.The results are related to stratification in the early Zechstein Sea. Calcite was precipitated in oxic upper layers above the halocline. Below the oxic/anoxic boundary framboidal pyrite was precipitated, resulting in lower sulphate concentration and elevated Mg/Ca ratio (due to calcite precipitation). As a result of this, dolomite formation occurred below the oxic/anoxic interface, within the anoxic water column and in bottom sediments. Variations in calcite/dolomite ratios, and isotopic variations, are thus explained by fluctuations in the relative level of the oxic/anoxic boundary in the Zechstein Sea.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1987.tb00558.x
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  • 3
    Electronic Resource
    Electronic Resource
    Experiments to Assess the Hydraulic Efficiency of Well Screens (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 21 (1983), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: The hydraulic properties of commercial well screens were investigated to determine which screen design features affected head loss. The test program began with laboratory experiments and continued as a field-scale experiment with the installation of a well field in the Thames Valley Gravel Aquifer.The laboratory experiments indicated that, for all practical purposes, the head loss attributable to all of the screens tested was negligible. The experimental head loss, however, did vary from screen to screen, particularly at high intake velocities, and the screens could be ranked on the basis of their hydraulic efficiencies. This efficiency hierarchy is explained tentatively in terms of the screen construction methods and slot geometry. The field experiments showed that the hydraulic performance of all well screens is independent of screen design provided that the open area of the screen is above about 10%. The field experiments also indicated that the development capacity of a screen in a gravel aquifer is not wholly dependent on screen design, but that progressive development does increase the hydraulic efficiency of a well.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1983.tb00722.x
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  • 4
    Electronic Resource
    Electronic Resource
    A vapour phase preservative treatment of manufactured wood based board materials (1989)
    Springer
    Wood science and technology 23 (1989), S. 273-279 
    Details
    ISSN: 1432-5225
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary The preservative treatment of four different wood based board materials using an esterified borate applied in the vapour phase was investigated. Under optimum conditions complete impregnation via the board faces was achieved in all boards treated. Board moisture content and treatment time had a major influence on retention and depth of penetration of the borate vapour.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00367740
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  • 5
    Electronic Resource
    Electronic Resource
    Carbon cycle changes of the Zechstein Sea: isotopic transition zone in the Marl Slate (1982)
    [s.l.] : Nature Publishing Group
    Nature 297 (1982), S. 389-390 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] On the basis of measurements of carbon isotopes on rocks of various ages, early models assumed that the mean S13C (carbonate) values were constant3"6. In recent years, however, descriptions of secular variation of S13C values in carbonate rocks during the Mesozoic7'8 and Cenozoic9*10 have ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/297389a0
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  • 6
    Electronic Resource
    Electronic Resource
    Atomic resolution with a 600-kV electron microscope (1979)
    [s.l.] : Nature Publishing Group
    Nature 281 (1979), S. 49-51 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The electron gun incorporates a lanthanum hexaboride thermionic cathode, in the indirectly-heated rod configura tion9'10. For operation with a brightness 10 times greater than is normally obtained from a tungsten filament the cathode lifetime is regularly more than 100 h. Such brightness allows ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/281049a0
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  • 7
    Electronic Resource
    Electronic Resource
    Devonian palaeogeography of the Orcadian Basin and the Great Glen Fault (1976)
    [s.l.] : Nature Publishing Group
    Nature 259 (1976), S. 550-551 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A variety of modes of displacement have been put forward for the Great Glen Fault. Some are based on pre-Devonian evidence4'5 and are not considered relevant to our argument. We consider the following three: First, sinistral movements of 200-300 km (ref. 1) or - 500km (ref. 6). ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/259550a0
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  • 8
    Electronic Resource
    Electronic Resource
    Evidence of rapid changes in the Permian geomagnetic field during the Zechstein marine transgression (1977)
    [s.l.] : Nature Publishing Group
    Nature 270 (1977), S. 593-594 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Late Palaeozoic palaeomagnetic data are voluminous, largely because of the ubiquity of easily measured red beds and igneous rocks. Within these data there are systematic discrepancies and it has been suggested that the Permian geomagnetic field did not perfectly correspond to an axial dipole. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/270593a0
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  • 9
    Electronic Resource
    Electronic Resource
    Small is beautiful (1988)
    [s.l.] : Nature Publishing Group
    Nature 334 (1988), S. 392-392 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] To ANY molecular biologist who has the time to reflect, it will no doubt seem surprising that only a decade ago we were (blissfully?) unaware of the existence of the intervening sequences that are present in many of the genes of eukaryotic cells. What seems all the more amazing is how far we have ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/334392b0
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  • 10
    Electronic Resource
    Electronic Resource
    Increase in human skeletal muscle lactate produced by fenfluramine (1976)
    [s.l.] : Nature Publishing Group
    Nature 262 (1976), S. 617-617 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Human skeletal muscle was obtained at surgery for total hip joint replacement. The preparation and incubation of the tissue (in Krebs-bicarbonate buffer with added bovine serum albumin Imgrnl-1 and glucose 16.67 x 10?3 M) was carried out using the method of Kirby, Leighton and Turner5. Muscle ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/262617a0
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