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  • 1980-1984  (59)
  • 1970-1974
  • 1960-1964  (20)
  • 1950-1954
  • 1980  (59)
  • 1963  (20)
  • 1
    Series available for loan
    Series available for loan
    Foraminifera from the Kara and Greenland Seas, and review of Arctic studies (1980)
    Washington, DC : United States Gov. Print. Off.
    Associated volumes
    Details Availability
    Call number: SR 90.0002(1070)
    In: Professional paper
    Type of Medium: Series available for loan
    Pages: III, 30 S.
    Series Statement: U.S. Geological Survey professional paper 1070
    Language: English
    Location: Lower compact magazine
    Branch Library: GFZ Library
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  • 2
    Electronic Resource
    Electronic Resource
    Role of phosphatidylinositol in attachment of alkaline phosphatase to membranes (1980)
    s.l. : American Chemical Society
    Biochemistry 19 (1980), S. 3913-3918 
    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/bi00558a004
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  • 3
    Electronic Resource
    Electronic Resource
    Production of biologically active N.alpha.-deacetylthymosin .alpha.1 in Escherichia coli through expression of a chemically synthesized gene (1980)
    s.l. : American Chemical Society
    Biochemistry 19 (1980), S. 6096-6104 
    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/bi00567a023
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  • 4
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    Unknown
    Climate and Conception Rates in Hong Kong (1963)
    Baltimore : Periodicals Archive Online (PAO)
    Human Biology. 35:3 (1963:Sept.) 366 
    Details
    ISSN: 0018-7143
    Topics: Biology
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:5243-1963-035-03-000012
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  • 5
    Electronic Resource
    Electronic Resource
    Determination of arsenic in organic compounds (1980)
    Springer
    Microchimica acta 73 (1980), S. 139-145 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Nach Verbrennung im Sauerstoffkolben mit einem Nickeldrahtnetz als Katalysator wird das Arsen entweder durch. Titration des As(III) mit Jod oder durch Titration des durch As(V) aus Jodid ausgeschiedenen Jods bestimmt. Ein anderes Verfahren beruht auf der kolorimetrischen Bestimmung von Methylenblau nach Verbrennung im offenen Rohr bei Abwesenheit von Halogenen oder im verschlossenen Rohr bei Anwesenheit von Halogenen.
    Notes: Summary Methods are described for the determination of arsenic in organic compounds. Following oxygen flask combustion using a nichrome gauze arsenic is estimated either by titration of arsenic(III) with iodine or by titration of iodine liberated from iodide by arsenic(V). An alternative colorimetric procedure involving measuring the absorbance of molybdenum blue is used following open tube digestion in the absence of halogens or sealed tube digestion in the presence of halogens.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01197242
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  • 6
    Electronic Resource
    Electronic Resource
    On magnetostatic equilibrium in a stratified atmosphere (1980)
    Springer
    Solar physics 65 (1980), S. 147-165 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract This is a study of the relationship between a magnetic field and its embedding plasma in static equilibrium in a uniform gravity. The ideal gas law is assumed. A system invariant in a given direction is treated first. We show that an exact integral of the equation for force balance across field lines can be derived in a closed form. Using this integral, exact solutions can be generated freely by integrating directly for the distributions of pressure, density and temperature necessary to keep a given magnetic field in equilibrium. Particular solutions are presented for illustration with the solar atmosphere in mind. Extending the treatment to the general system depending on all three spatial coordinates, we arrive at the general form of a theorem of Parker that a magnetic field in static equilibrium must possess certain symmetries. We derive an equation involving the Euler potentials of the magnetic field stipulating these necessary symmetries. Only those magnetic fields satisfying this equation can be in static equilibrium and for these fields, the endowed symmetries make the construction of exact solutions an essentially two dimensional problem as exemplified by the special case of invariance in a given direction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00151389
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  • 7
    Electronic Resource
    Electronic Resource
    Cylindrical prominences and the magnetic influence of the photospheric boundary (1980)
    Springer
    Solar physics 66 (1980), S. 285-303 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We construct exact, non-linear, solutions for an horizontal, cylindrical, current-carrying, prominence supported against solar gravity by the action of a Lorentz force. The solutions incorporate the photosphere boundary condition, proposed by van Tend and Kuperus (1978), and analyzed by them for line filaments. Our solutions have finite radius for the prominence material and, as well as satisfying the equations of magnetostatic equilibrium, they allow for the continuity of gas pressure, and of the normal and tangential components of magnetic field across the circular prominence boundary. We show that an infinity of solutions is possible and we illustrate the basic behavior by investigation of a special case. We also give a prescription for constructing equilibrium fields for any horizontal prominence with arbitrary cross-section and with an arbitrary external magnetic field. The prescription is ideally suited for numerical codes and we suggest that both the equilibrium of such shapes can easily be accomplished numerically together with their evolutionary history.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00150586
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  • 8
    Electronic Resource
    Electronic Resource
    Exact static equilibrium of vertically oriented magnetic flux tubes (1980)
    Springer
    Solar physics 67 (1980), S. 57-77 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A method is prescribed for generating exact solutions of magnetostatic equilibrium describing a cylindrically symmetric magnetic flux tube oriented vertically in a stratified medium. Given the geometric shape of the field lines, compact formulae are presented for the direct calculation of all the possible distributions of pressure, density, temperature and magnetic field strength compatible with these field lines under the condition of static equlibrium. The plasma satisfies the ideal gas law and gravity is uniform in space. A particular solution is obtained by this method for a medium sized sunspot whose magnetic field obeys the similarity law of Schlüter and Temesváry (1958). With this solution, it is possible for the first time to illustrate explicitly the confinement of the magnetic field of the cool sunspot by the hotter external plasma in an exact relationship involving both magnetic pressure and field tension as well as the support of the weight of the plasma by pressure gradients. It is found that the cool region of the sunspot is not likely to extend much more than a few density scale heights below the photosphere. The sunspot field approaches being potential in the neighbourhood of the photosphere so that the Lorentz force exerting on the photosphere is less than what the magnetic pressure would suggest. This accounts for how the sunspot field can be confined in the photosphere where its magnetic pressure is often observed to even exceed the normal photospheric pressure. The energy mechanism operating in the sunspot and the question of mechanical stability are not treated in this paper.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00146682
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  • 9
    Electronic Resource
    Electronic Resource
    On the equilibrium of a cylindrical plasma supported horizontally by magnetic fields in uniform gravity (1980)
    Springer
    Solar physics 67 (1980), S. 229-243 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We consider the mechanical equilibrium of a cylinder of plasma suspended horizontally by magnetic fields in uniform gravity. This configuration is what may be expected if a quiescent prominence were to condense in a region initially filled with a uniform magnetic field. A set of exact solutions describing the equilibrium situation is presented. Although the plasma distribution is assumed to be cylindrically symmetric to obtain tractibility of the problem, exact force balance between plasma pressure, the Lorentz force and gravity is achieved everywhere in space. The set of solutions covers a particular case of a uniform temperature as well as cases where the temperature rises from zero at the center of the plasma cylinder to rapidly reach a constant asymptotic value outside the cylinder. The physical properties of these solutions are described. A suggestion is made for future development, based on the present work, to construct a prominence model in which the requirements of both mechanical and radiative equilibrium are satisfied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00149804
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  • 10
    Electronic Resource
    Electronic Resource
    Immunization of female rabbits against testosterone stimulates testosterone accumulation by isolated ovarian follicles (1980)
    Springer
    Cellular and molecular life sciences 36 (1980), S. 465-466 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Ovarian follicles isolated from female rabbits after active immunization against testosterone-3-oxime bovine serum albumin produced more testosterone than similar follicles from controls.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01975150
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