In memoriam Prof. Dr. Jürgen Kiefer:
The “Gesellschaft für Biologische Strahlenforschung“ (GBS; society for biological radiation research) is grieving for its founder and honorary member Prof. Dr. Jürgen Kiefer (November 29th, 1936 – August 25th, 2017)
who has unexpectedly died. From 1970 to 2002 he was professor for biophysics at the Centre for Radiation of the Justus-Liebig University, Gießen, Germany. In addition, he was professor for radiology in the Department of Veterinary Medicine from 1985 to 2002.
Besides his scientific contributions to radiation research, Prof. Kiefer was appointed to many national and international committees of radiation protection and safety. His initiative and his continuous engagement for radiation research and promotion of young scientists significantly contributed to the foundation of GBS in 1996. He was vice-president of GBS from 1996-1998 and president from 1998-2002. For his merits he was awarded with the “Friedrich-Dessauer-Medaille“ in 2003 and the “Ulrich-Hagen-Award” of the GBS in 2006.
On behalf of the council of GBS, Michael Hausmann
In memoriam Prof. Dr. Dietrich Harder:
The “Deutsche Gesellschaft für Biologische Strahlenforschung” (DeGBS; German Society for Biological Radiation Research) is grieving for its founder and honorary member Prof. Dr. Dietrich Harder, who has unexpectedly died. From 1974 to 1999, he was full professor for Medical Physics and Biophysics at the Medical Faculty of the University of Göttingen and director of the Institute of Medical Physics and Biophysics at the University Medical Centre, Göttingen, Germany. Prof. Harder significantly contributed to radiation research–understanding radiation interaction on the cellular level, especially mechanisms of chromosome aberration induction for understanding and measurements of relative biological effectiveness (RBE). After his retirement, he continued his work, especially in the context of radiation protection with a focus on the balance between radiation risk and in curative effects of Radon. After the German unification, his activities significantly promoted the reconstruction of the Radon therapeutic baths in Bad Schlema and the local research of Radon effects and the history of the city. Besides his scientific contributions to radiation research, Prof. Harder was appointed to many national and international committees of radiation protection and safety. Prof Harder was founder and first editor of the “Zeitschrift für Medizinische Physik”. His initiative and his continuous engagement for radiation research and promotion of young scientists significantly contributed to the foundation of “Gesellschaft für Biologische Strahlenforschung” (GBS, today DeGBS) in 1996. He was president of GBS from 1996 to 1998. For his merits, he was awarded with many prizes as, for instance, the “Hermann-Holthusen-Ring” of the German Röntgen Society, “Timoféeff-Ressovsky-Medal” of the Russian Academy of Medical Sciences, or the “Ulrich-Hagen-Award” of the GBS in 2005. For his meritoriousness in radiation protection, he was awarded with the Federal Cross of Merits by the President of the Federal Republic of Germany.
On behalf of the council of DeGBS, Rüdiger Greinert and Michael Hausmann (Senior President)