S1 (Rhine-Ruhr S-Bahn) Services ran via Düsseldorf Airport Terminal station from 24 May 1998 to 28 May 2000. Services were extended from Düsseldorf to Solingen on 13 December 2009, replacing part of the former line S 7 service. S1 (Rhine-Ruhr S-Bahn) Line S1 is a S-Bahn line on the Rhine-Ruhr network. It is operated by DB Regio. It runs from Dortmund west over Essen to Duisburg. From there it travels south to Düsseldorf and Hilden before continuing to Solingen. It is operated at 20 minute intervals, using coupled sets of class 422 four-car electrical multiple units. Line S 1 runs over lines built
University Hospitals of the Ruhr-University of Bochum area were appointed as teaching hospitals. This appointment was first intended to be a temporary solution to financial shortages and political problems in the development of the medical faculty in Bochum in the 1970s, especially after the Universitätsklinikum Essen was spun off from the Ruhr University in 1972 and integrated into the newly formed Universität-Gesamthochschule Essen. In 1998 the cooperation between appointed hospitals and Ruhr University was permanently established. This was in September 2008 the basis for the foundation of the "Verband Klinikum der Ruhr-Universität Bochum" with coordinating tasks in clinical, scientific and didactical fields. University Hospitals of the Ruhr-University