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    Article

    Früherkennung des Risikos der späteren Implantatlockerung mittels der Röntgen Stereophotogrammetrischen Analyse (RSA)

    Häufigste Ursache für Implantatrevisionen in der Hüft- und Knieendoprothetik ist die aseptische Implantatlockerung. Die Methode der Röntgen Stereophotogrammetrischen Analyse (RSA) repräsentiert den aktuellen G...

    Dr. rer. biol. hum. F. Seehaus, R. Sonntag, M. Schwarze, E. Jakubowitz in Der Orthopäde (2020)

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    Article

    Fixation of the shorter cementless GTS™ stem: biomechanical comparison between a conventional and an innovative implant design

    Conventional cementless total hip arthroplasty already shows very good clinical results. Nevertheless, implant revision is often accompanied by massive bone loss. The new shorter GTS™ stem has been introduced ...

    J. Nadorf, M. Thomsen, S. Gantz, R. Sonntag in Archives of Orthopaedic and Trauma Surgery (2014)

  3. Article

    Open Access

    Pro-apoptotic Sorafenib signaling in murine hepatocytes depends on malignancy and is associated with PUMA expression in vitro and in vivo

    The multi-kinase inhibitor Sorafenib increases the survival of patients with advanced hepatocellular carcinoma (HCC). Current data suggest that Sorafenib inhibits cellular proliferation and angiogenesis and pr...

    R Sonntag, N Gassler, J-M Bangen, C Trautwein, C Liedtke in Cell Death & Disease (2014)

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    Article

    Metallkonzentrationen bei Patienten mit Metall-Metall-Gleitpaarungs-Prothese

    Erhöhter Verschleiß von Prothesen mit Metall-Metall-Gleitpaarungen führt bei betroffenen Patienten zu erhöhten systemischen und lokalen Metallkonzentrationen. Die lokalen Metallbelastungen in der Nähe des Impl...

    PD Dr. J.P. Kretzer, C. Van Der Straeten, R. Sonntag, U. Müller, M. Streit in Der Orthopäde (2013)

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    Article

    Grundlagen zur tribologischen Analyse von Endoprothesen

    Zur tribologischen Charakterisierung künstlicher Gelenke stehen derzeit verschiedene experimentelle Methoden zur Verfügung, die untereinander allerdings nur begrenzt vergleichbar sind. Auch sind die verwendete...

    Dr. J.P. Kretzer, C. Zietz, C. Schröder, J. Reinders, L. Middelborg in Der Orthopäde (2012)

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    Article

    Neutron-diffraction study of Bi12MO20 single crystals with sillenite structure (M=Si,Si0.995Mn0.005,Bi0.53Mn0.47)

    Single crystals of Bi12MO20 oxides have been characterised by neutron diffraction. The compounds crystallise with the cubic sillenite-type structure (space group I23, Z=2), with unit-cell parameter a=10.104(1) Å,...

    S. Neov, V. Marinova, M. Reehuis, R. Sonntag in Applied Physics A (2002)

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    Article

    Neutron diffraction study on the medium and short-range order of ternary chalcogenide glasses

    Glasses from GexAs40−xS60, GexAs40−xSe60, GexSb40−xS60 and GexSb40−xSe60 families have been investigated by neutron diffraction. The well expressed “first sharp diffraction peak” of the neutron spectra at Q = 10–...

    S. Neov, I. Gerasimova, E. Skordeva, D. Arsova in Journal of Materials Science (1999)

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    Article

    Neutron diffraction study of RMn4Al8 (R = Nd, Dy, Ho, Er), ErCr4Al8 and ErCu4Al8

    Neutron powder diffraction has been used to investigate the magnetic order in a series of RMn4Al8 (space group I4/mmm) compounds with R = (Nd, Dy, Ho and Er). For compounds with Mn, no magnetic order was detected...

    G. Baio, O. Moze, G. Amoretti, R. Sonntag in Zeitschrift für Physik B Condensed Matter (1997)

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    Article

    The phase diagram of (NH4I)x(KI)1−x

    The χ,T phase diagram of (NH4I)x(KI)1−x has been determined using neutron diffraction experiments and dielectric spectroscopy. At low temperatures and with decreasing χ, the sequence γ, β, ε and glass phase has b...

    M. Paasch, M. Winterlich, R. Böhmer in Zeitschrift für Physik B Condensed Matter (1995)

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    Article

    Neutron diffraction study of (NH4I)0.73(KI)0.27

    Powder and single crystal neutron diffraction experiments were performed on (NH4I)0.73(KI)0.27 and provide experimental evidence for the occurence of a new phase below 63K. This ε phase has trigonal symmetry (spa...

    M. Paasch, G. J. Mclntyre, M. Reehuis in Zeitschrift für Physik B Condensed Matter (1995)

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    Article

    Neutron diffraction study of (NH4I)0.73(KI)0.27

    Powder and single crystal neutron diffraction experiments were performed on (NH4I)0.73(KI)0.27 and provide experimental evidence for the occurence of a new phase below 63K. This ε phase has trigonal symmetry (spa...

    M. Paasch, G. J. Mclntyre, M. Reehuis in Zeitschrift für Physik B Condensed Matter (1995)

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    Article

    The phase diagram of (NH4I)x(KI)1−x

    The χ,T phase diagram of (NH4I)x(KI)1−x has been determined using neutron diffraction experiments and dielectric spectroscopy. At low temperatures and with decreasing χ, the sequence γ, β, ε and glass phase has b...

    M. Paasch, M. Winterlich, R. Böhmer in Zeitschrift für Physik B Condensed Matter (1995)

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    Article

    X-ray superstructure determination of ordered oxygen and Cu-displacements in a single domain of YBa2Cu3O6.35

    The superstructure of ordered oxygen atoms in a single domain of YBa2Cu3O6.35 has been determined by X-ray diffraction. The 45o rotated superstructure cell is orthorhombic—spacegroup Pbam, lattice constants ...

    Th. Zeiske, D. Hohlwein, R. Sonntag in Zeitschrift für Physik B Condensed Matter (1992)

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    Article

    Cisplatin/etoposide/ifosfamide stepwise dose escalation with concomitant granulocyte/macrophage-colony-stimulating factor for patients with far-advanced testicular carcinoma

    In order to develop a more dose-intensive induction regimen for the treatment of far-advanced testicular tumours, the German Cooperative Group for Testicular Tumours started a dose-escalation trial of cisplati...

    A. Harstrick, H. -J. Schmoll, C. Bokemeyer in Journal of Cancer Research and Clinical On… (1991)

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    Article

    Crystallographic and magnetic structures of highT c related (Bi/Pb)2Sr2FeO6.25 determined by neutron powder diffraction

    The structure of (Bi/Pb)2Sr2FeO6.25 was refined from high resolution neutron powder diffraction data taken at 300 K and 5 K. The average structure is well described in the orthorhombic spacegroup Amaa witha=5.425...

    N. Stüsser, R. Sonntag, D. Hohlwein in Zeitschrift für Physik B Condensed Matter (1991)

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    Chapter

    Nervensystem, Auge, Mund, Rachen, Nasennebenhöhlen, Schilddrüse, Thymus, Niere, Nebenniere, Harnblase, Knochen, Weichteile, seltene Tumoren anderer Lokalisation

    Die Inzidenz von Hirntumoren liegt bei 4,5/100000. Bei Kindern machen sie rund 50% aller soliden Tumoren aus. Sie können — nach histologischen Kriterien — maligne oder benigne sein, wobei histologisch zwar ben...

    R. Sonntag, G. A. Nagel in Internistische Krebstherapie (1979)

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    Article

    Die in sich gedrehte, sich in sich selbst verbiegende Welle und ihre Stabilität

    Im Gegensatz zur elastisch verbogenen, ursprünglich geraden Welle ist zum Drehen der im spannungslosen Zustand gekrümmten Welle ein mit dem Drehwinkel periodisch veränderliches Drehmoment nötig. Dieses kommt, ...

    R. Sonntag in Forschung auf dem Gebiet des Ingenieurwesens A (1957)

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    Article

    Der klinische Wert des Oto-Audion

    R. Sonntag in Archiv für Ohren-, Nasen- und Kehlkopfheilkunde (1930)