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  • Book
    Gerd Rosenbusch, Annemarie de Knecht-van Eekelen.
    Summary: This book, which will appeal to all with an interest in the history of radiology and physics, casts new light on the life and career of Wilhelm Conrad Röntgen, showing how his personality was shaped by his youth in the Netherlands and his teachers in Switzerland. Beyond this, it explores the technical developments relevant to the birth of radiology in the late nineteenth century and examines the impact of the discovery of X-rays on a broad range of scientific research. Röntgen (1845-1923) was born in Lennep, Germany, but emigrated with his family to the Netherlands in 1848. As a 17-year-old he moved to Utrecht, entering theTechnical School and living at the home of Dr. Jan Willem Gunning. In this well-educated family he was stimulated to continue his studies at university. In 1868 he received a diploma from the Federal Polytechnic School in Zurich and just a year later completed a PhD in physics. He followed his mentor, August Kundt, to the universities of Würzburg (1870) and Strasburg (1872) and married Anna Ludwig in 1872. In 1879 Röntgen gained his first professorship at a German university, in Giessen, followed by a chair in Würzburg in 1888. Here he discovered X-rays in 1895, for which he received the first Nobel Prize in physics in 1901. From 1900 until his retirement in 1921 he occupied the chair of physics at the Munich University.
    Digital Access Springer 2019
  • Article
    Reynard AM, Beck ME, Cunningham RK.
    Infect Immun. 1978 Mar;19(3):861-6.
    The ability of normal rabbit serum to kill Escherichia coli J6-2 was measured. With the concentration of serum adjusted so that approximately 2% of the cells survived after 2 h of incubation, there was no killing of the same strain bearing the F-like plasmid R100. Other F-like plasmids also provided the host strain with resistance to serum bactericidal activity, whereas none of the I-like plasmids used provided the host strain with resistance. When E. coli J6-2 bore both R100 and an I-like plasmid, there was some resistance to serum but less than with R100 alone. The effects of lysozyme on E. coli J6-2, which had been treated with tris(hydroxymethyl)aminomethane and ethylenediaminetetraacetate, were not altered by the presence of R100. The plasmids from 16 clinical E. coli isolates were transferred to J6-2N, a nalidixic acid-resistant mutant of J6-2. Four of the 16 plasmids provided J6-2N with resistance to normal rabbit serum.
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