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  1. No Access

    Article

    Adsorption of Natural Gas Methane on Metal-Organic Framework Structures in the Range of Supercritical Temperatures

    The Dubinin theory of volume filling of micropores (TVFM) was used to study the structure–energy characteristics of metal-organic frameworks based on salts of copper (C300), aluminum (A520), and zinc (Z205) pr...

    A. A. Fomkin, A. Yu. Tsivadze… in Protection of Metals and Physical Chemistr… (2018)

  2. No Access

    Article

    Intra-individual, randomised comparison of the MRI contrast agents gadobutrol versus gadoteridol in patients with primary and secondary brain tumours, evaluated in a blinded read

    To prove that 1.0 M gadobutrol provides superior contrast enhancement and MRI image characteristics of primary and secondary brain tumours compared with 0.5 M gadoteridol, thereby providing superior diagnostic...

    M. Koenig, G. Schulte-Altedorneburg, M. Piontek, A. Hentsch… in European Radiology (2013)

  3. No Access

    Article

    Strains ofaspergillus versicolor tiraboschi synthesizing sterigmatocystin and the differentiation of mycotoxic risk dependent on their productivity in housing buildings

    In biomasses from 22 moulds isolated in housing buildings a Chromatographie HPLC UV/VIS analysis was carried out to assess the production of sterigmatocystin by fungal isolates. The results are discussed with ...

    M. Piontek in Mycotoxin Research (2007)

  4. No Access

    Article

    Two novel gene expression systems based on the yeasts Schwanniomyces occidentalis and Pichia stipitis

    Two non-Saccharomyces yeasts have been developed as hosts for heterologous gene expression. The celD gene from Clostridium thermocellum, encoding a heat-stable cellulase, served as the test sequence. The first s...

    M. Piontek, J. Hagedorn, C. P. Hollenberg… in Applied Microbiology and Biotechnology (1998)

  5. No Access

    Article

    Recombinant Hansenula polymorpha as a biocatalyst: coexpression of the spinach glycolate oxidase (GO) and the S. cerevisiae catalase T (CTT1) gene

     The methylotrophic yeast Hansenula polymorpha has been developed as an efficient production system for heterologous proteins. The system offers the possibility to cointegrate heterologous genes in anticipated fi...

    G. Gellissen, M. Piontek, U. Dahlems… in Applied Microbiology and Biotechnology (1996)

  6. No Access

    Article

    High-level secretion of hirudin by Hansenula polymorpha —authentic processing of three different preprohirudins

    A DNA sequence coding for a subtype of the hirudin variant HV1 was expressed in the methylotrophic yeast Hansenula polymorpha from a strongly inducible promoter element derived from a gene of the inducible promot...

    U. Weydemann, P. Keup, M. Piontek… in Applied Microbiology and Biotechnology (1995)

  7. No Access

    Chapter

    Hamburger Jugendstudie: „Herstellung von Arbeitsvermögen“ und „Entwicklung des Ichs“

    Eine Stichprobe Hamburger Schulabgänger (1979) aus Haupt- und Realschulen und aus Gymnasien bildet den Berichtsbereich unserer Untersuchungsergebnisse aus den Jahren 1981 und 1982. Diese Stichprobe ist eine hinsi...

    H. Friebel, R. Friebel-Beyer, St. Toth… in Berufliche Qualifikation und Persönlichkei… (1985)