tific Council for the Joint Congress of the International Society for Environmental Epidemiology and the International Society for Exposure Assessment (ISEE-ISEA), Paris 2006, and was a member of the Scientific Council for the 6th International Conference on High Levels of Natural Radiation and Radon Areas (Osaka, September 2004) and of the International Programme Committee for the 11th International Radiation Protection Association (IRPA) Congress, Madrid 2004. She has been responsible for numerous projects supported currently or previously under the European Commission’s Quality of Life, Radiation Protection, and INCO-Copernicus Programmes.

Roger Cox, Ph.D., is director of the National Radiological Protection Board (NRPB) at Chilton, Oxfordshire. He was formerly division head and head of the Radiation Effects Department. After his Ph.D. research in microbial genetics, he joined the MRC Radiobiology Unit at Harwell in 1971 where he was involved in cellular and molecular research relating to postirradiation repair, mutagenesis, and tumor development. At NRPB (1990–) he has continued to pursue personal research interests in the mechanisms and genetics of radiation tumorigenesis. Roger Cox is involved in the work of a variety of national and international committees considering radiation effects and radiological protection. These include the NRPB Advisory Group on Ionizing Radiation (1995–), the International Commission on Radiological Protection (ICRP; 1989–), and UNSCEAR (1989–1993 and 1996–).

Scott Davis, Ph.D., is professor and chairman of the Department of Epidemiology in the School of Public Health and Community Medicine at the University of Washington and a full member in the Program in Epidemiology of the Division of Public Health Sciences at the Fred Hutchinson Cancer Research Center, Seattle, Washington. He obtained his undergraduate degree in biology and chemistry from the University of New Mexico, a master of science in community health from the University of Rochester, and a Ph.D. in epidemiology from the University of Washington. He served as a research associate in epidemiology at RERF in Hiroshima, Japan, from 1983 to 1985. His primary research focus is radiation epidemiology. For more than a decade he has directed two major research activities investigating the effects of ionizing radiation on human health. One is a series of studies in the Russian Federation of the effects of exposure to radiation from the Chernobyl Power Station. These studies have focused on the risk of thyroid cancer and leukemia among children in the Bryansk Oblast. The second is a long-term follow-up study of thyroid disease in persons exposed to atmospheric releases of radiation from the Hanford Site in eastern Washington State (the Hanford Thyroid Disease Study). He has conducted several epidemiologic studies of the possible health effects associated with exposure to power frequency magnetic fields, focusing on the risk of leukemia and breast cancer. Recently this work has expanded to include investigations of the effects of exposure to light-at-night and circadian disruption on melatonin and reproductive hormones important in the etiology of breast and other hormone-related cancers. He has also maintained a long-standing interest in the etiology of leukemias and lymphomas and has directed epidemiologic studies of Hodgkin’s disease, non-Hodgkin’s lymphoma, and multiple myeloma. Dr. Davis was a Special Fellow of the Leukemia Society of America from 1986 to 1987 and the recipient of a Research Career Development Award from the National Cancer Institute (NCI) from 1988 to 1993. He is an elected member of the American Epidemiological Society and a fellow of the American College of Epidemiology. He was recently elected a member (academician) of the Russian Academy of Medical Sciences.

William C. Dewey, Ph.D., is emeritus professor of radiation oncology, University of California, San Francisco (UCSF). From 1981 to 2004 when he retired, he was director of the Radiation Oncology Research Laboratory at UCSF. Dr. Dewey earned his doctorate in radiation biology from the University of Rochester in 1958. He was a faculty member of the University of Texas Graduate School of Biomedical Sciences at M.D. Anderson Hospital in Houston, Texas (1958–1965), and of the Department of Radiology and Radiation Biology, Colorado State University (1965–1981). He served as president of the Radiation Research Society in 1979 and was Failla lecturer of that society in 1989. Dr. Dewey was program chairman for the Ninth International Congress of Radiation Research in 1991, and chairman and organizer of Third International Symposium: Cancer Therapy by Hyperthermia, Drugs and Radiation in 1980. He is the author and coauthor of 264 publications mainly on the effects of radiation and hyperthermia on mammalian cells in culture. He received the Andrew G. Clark research award in 1977 and was an American Society for Therapeutic Radiology and Oncology (ASTRO) gold medal recipient in 1998. Dr. Dewey is known, in part, for his studies of the effects of radiation and hyperthermia on synchronous cell populations and for the number of investigators in the radiation biology community who trained in his laboratory.

Ethel S. Gilbert, Ph.D., is a biostatistician in the Radiation Epidemiology Branch of NCI. She holds a B.A. in mathematics from Oberlin College and an M.P.H. and Ph.D. in biostatistics from the University of Michigan. Her current research includes studies of workers at the Mayak nuclear plant in Russia, studies of second cancers after radio- and chemotherapy, and radiation risk assessment. Formerly, Dr. Gilbert spent several years as a senior staff scientist at Pacific Northwest National Laboratories, where her research focused on epidemiologic studies of nuclear workers, including combined analyses of national and international data. Dr. Gilbert is a fellow of the American Statistical Associa-

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