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  • Chemistry  (12)
  • Antithrombin III  (2)
  • 33.50.Hv  (1)
  • 33.80.Be  (1)
  • 36.40.01  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 145 (1986), S. 500-503 
    ISSN: 1432-1076
    Keywords: Antithrombin III ; Albumin ; Shock
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Low antithrombin III (AT III) levels in shock are usually ascribed to disseminated intravascular coagulation (DIC). However, decreased activities of clotting factors and their inhibitors could reflect a generalised fall in plasma proteins rather than DIC. AT III and albumin were compared in 48 asphyxiated and non-asphyxiated newborn rabbits (pH6.70–7.30). Both AT III and albumin were markedly decreased in the sickest animals and there was a direct linear relationship between the two proteins (P〈0.001). Similar results were obtained in ten newborn infants suffering from shock and haemorrhagic diathesis. In all cases AT III and albumin were decreased below the normal range and significantly correlated (P〈0.01). Our findings suggest that AT III is not a useful diagnostic marker of DIC. Further, a similar fall of clottable and non-clottable proteins in shock questions the general assumption that the ensuing coagulopathy is due to intravascular coagulation.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 59 (1981), S. 1349-1351 
    ISSN: 1432-1440
    Keywords: Antithrombin III ; Plasma elimination Half-life ; Consumption coagulopathy ; Antithrombin III ; Plasma-Eliminations-Halbwertszeit ; Verbrauchskoagulopathie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Im Verlauf einer schweren Gerinnungsstörung bei einem Säugling mit Sepsis und Schock wurden vor und während der Substitutionsbehandlung mit humanem Antithrombin wiederholt die Antithrombin-III Spiegel gemessen. Diese Daten wurden mit Hilfe einer Biexponentialfunktion mathematisch ausgewertet. Die Plasma-Eliminations-Halbwertszeit des Antithrombins betrug 7,5 bzw. 10,5 Stunden. Verglichen mit bekannten Plasma-Halbwertszeiten von radioaktiv markiertem Antithrombin III bei Erwachsenen war die Elimination um den Faktor 5–10 beschleunigt. Die deutlich erniedrigten Antithrombin III Spiegel in diesem Fall konnten also mindestens teilweise auf einen beschleunigten Umsatz des Antithrombins zurückgeführt werden. Die Bestimmung der Plasma-Eliminations-Halbwertszeit von Antithrombin III ist hilfreich bei der Abgenzung einer verminderten Produktion von einem gesteigerten Umsatz im Verlauf einer Koagulopathie. Die Diagnose einer disseminierten intravasalen Gerinnung kann so etwas sicherer gestellt werden. Die Vorteile der Antithrombin- Substitutionstherapie werden bei diesem Vorgehen genützt, die Nachteile radioaktiv markierter Proteine vermieden.
    Notes: Summary During the course of severe coagulopathy in an infant suffering from septicaemia and shock, antithrombin III levels were determined repeatedly before and during substitution therapy with human antithrombin. By mathematical analysis of these data, using a biexponential function, the plasma elimination half-life of the antithrombin III was estimated to be 7.5–10.5 h. Compared with known plasma half-lives of radioactively labelled antithrombin III in adults the increase was five-to ten-fold. This indicates that the significantly decreased levels of antithrombin III in this case of coagulopathy were at least partly due to an accelerated consumption of antithrombin III. The estimation of the plasma elimination half-life of antithrombin III helps to differentiate decreased production from increased consumption in cases of severe coagulopathy. Thus, a more precise diagnosis of disseminated intravascular coagulation can be made whilst taking advantage of substitution therapy and avoiding the hazards of radioactive tracer proteins.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1434-6079
    Keywords: 36.40.01 ; 33.80.Gj
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Optimized geometries and binding energies are calculated for ethene (ethylene) dimers, trimers, and tetramers based on a pairwise additive dimer potential. From these results intermolecular frequencies and relative abundancies (catchment areas) of the different isomers are obtained and compared with the results of accurate measurements of the photodissociation upon absorption of one photon of a CO2 laser in the region of thev 7 monomer absorption band at 949 cm−1. The clusters are size selected in a scattering experiment and show for a cluster size fromn=2 ton=6 a frequency maximum shifted by 3 cm−1 to the blue compared with the monomer. The result is explained by the predominance of chains and chain-like structures of the clusters in the photodissociation process. The chains consist of cross-like dimer sub-units.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 34 (1995), S. 111-118 
    ISSN: 1434-6079
    Keywords: 33.10.-n ; 33.50.Hv ; 33.80.Be
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The torsional dynamics of the 9-(N-carbazolyl)-anthracene (C9A) molecule is investigated by means of time-independent (1) and time-dependent (2) quantum-mechanical simulations in a diabatic representation. The study includes effects of surface crossing of the brightS 1 state with a dark state. (1) The intensity pattern of theS 0 →S 1 fluorescence excitation spectrum is used to fit an effective one-dimensional Hamiltonian with a single-minimum potential for the dark state together with diabatic couplings to the double well potential of the bright state. (2) Based on this Hamiltonian, first predictions for a pump-probe scheme are made. In the pump process the molecules are excited to theS 1 state followed by competing torsions in the bright state and diabatic curve crossings to the dark state, depending on the pump frequency. Assuming the probe process to be an ionization from the bright state, the interfering effects of the dark state on the dynamics in the bright state can be monitored in a directly time-dependent way on a fs-ps time scale.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Oberflächenspannung des Quecksilbers im höchsten Vakuum liegt zwischen dem Anfangswert und dem Endwert der Oberflächenspannung in Luft. Bei Zinn konnte eine Veränderung der Oberflächenspannung mit der Zeit im Vakuum von 5·10-5 mm Hg nicht festgestellt werden. Thallium wies eine Zunahme der Oberflächenspannung mit der Zeit im Vakuum von 10-5 bis 10-4 mm Hg auf. Aus diesen Feststellungen wurde geschlossen, daß dort, wo beim Quecksilber Veränderungen der Oberflächenspannung mit der Zeit vorliegen, die sich einstellenden Oberflächenspannungen sich als Resultierende zwischen den Einflüssen der Anordnung der Metallatome der Oberfläche und der ein- und angelagerten Gasatome ergeben.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 68 (1996), S. 1158-1158 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 70 (1998), S. 1205-1206 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 0009-286X
    Keywords: Fischer-Tropsch-Synthese ; Suspensions-Reaktor ; Mn/Fe- und Fe/Cu-Katalysator ; Produktverteilung nach Schulz-Flory ; Geschwindigkeitskonstanten für Synthesegas-Verbrauch ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Chichester [u.a.] : Wiley-Blackwell
    Surface and Interface Analysis 24 (1996), S. 511-516 
    ISSN: 0142-2421
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: Vapor phase decomposition-droplet surface etching-graphite furnace atomic absorption spectroscopy (VPD-DSE-GFAAS) is discussed as a technique for the determination of low levels of metals in chemical oxides on silicon surfaces. The VPD-DSE-GFAAS technique was found to be statistically equivalent to results obtained by the standard surface techniques of total reflectance x-ray fluorescence spectroscopy (TXRF) and SIMS. The capability of the VPD-DSE-GFAAS technique has been extended to detection limits in the 107 to low 109 atom cm-2 range. A positive linear relationship was found for iron, calcium, zinc and aluminum deposited on a silicon wafer from an ammonium hydroxide-hydrogen peroxide-water (SC1) solution. Sodium and potassium deposition from SC1 solutions was found to be independent of solution concentrations. Deposition for these metals appeared to be primarily related to localized micron-sized nuclei deposits and not to adsorption on an atomic scale.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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