TEKTRAN summaries on the Internet are "snapshots in time"--Selected pre-publication notices -- of recent research results from the Agricultural Research Service (ARS) of the U.S. Department of Agriculture. You can search TEKTRAN to glimpse the future of food and nutrition, crops and livestock, natural resources, and industrial products and technology. You can also read breaking news in biology, chemistry, and other sciences. We update TEKTRAN regularly -- adding summaries of new articles that scientists have submitted for publication and removing summaries after three years. We exclude some summaries to protect potential patents.