K.E. van Holde is Distinguished Professor Emeritus of Biophysics and Biochemistry at Oregon State University. Dr. van Holde's major research interest is the structure of chromatin; his work resulted in theaward of an American Cancer Society Research Professorship in 1977 and hiselection to the National Academy of Sciences in 1989. He has received Guggenheim, NSF, and EMBO Fellowships and is the author of two books and more than 175 scientific papers.

Kevin Ahern is a Senior Instructor in the Department of Biochemistry and Biophysics at Oregon State University, where he pioneered the development of Web-based courses for teaching biochemistry. He is a contributing editor to Science magazine and a columnist for Genetic Engineering News. He has edited two books, Biotechnology Software Reports - Computer Applications for Molecular Biologists and The Biotechnology Software Directory, A Buyer's Guide, and is the founder of DaVinci Press Ink, a scientific software consulting firm. Dr. Ahern's teaching experience includes undergraduate and graduate biochemistry courses.

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