Dr. Sedov has graduated from the Moscow Lomonosov University, Department of soil Science, in 1985, obtained PhD at the same university in 1993, in 1985-1999 worked in the same department as technical assistant, researcher, assistant professor, since 1999 researcher in the Dep. of Soil Science, Institute of Geoloy, National University of Mexico (UNAM). Initiated the research in paleopedology in 1995 collaborating with Prof. A.Bronger to study Moroccan Terrae Rossae then participated in various paleopedological and geoarchaeological projects: research of loess-paleosol sequences, Holocene soil evolution of Eastern Europe, ancient human impact in soils associated with early-medieval settlements. In Mexico together with the colleagues from UNAM formed a paleopedological group, which first promoted the study of the volcanic paleosols in central Mexico and currently extends its activities towards soil-archaeological topics, associated with pre-hispanic civilizations of Mesoamerica. Author of more than 30 publications in national and international journals, member of org. committees of 2 international events on paleopedology arranged in Mexico in 2001 and 2005.