Radiation Effects on Biological Systems: RadiationInduced DNA Lesions in Eukaryotic Cells, Their Repair, and Biological Relevance; M. Frankenberg-Schwager. Does the Topology of Closed Supercoiled DNA Affect its Radiation Sensitivity? C.E. Swenberg, et al. Plasmids as Testsystem for the Detection of DNA Strand Breaks; J. Wehner, et al. Thymine Dimer Formation Mediated by the Photosensitizing Properties of Pharmaceutical Constituents; L.F. Salter, et al. Theoretical Models of Biological Radiation Action: A Model of Cell Damage in Space Flight; R. Katz, et al. Concepts of Microdosimetry and their Applicability to Radiation Problems in Manned Space Missions; J. Breckow. Theoretical Analysis of Heavy Ion Action on Cells; J. Kiefer. Mathematical Models of Lesion Induction and Repair in Irradiated Cells; S. Kozubek, G. Horneck. Cell Kinetics and Track Structure; J.W. Wilson, et al. 18 additional articles. Index.