As a law student, Stephen A. Bent wrote a case note on the first-ever biotech patent case, which involved a genetically engineered bacterium that consumed oil spills. He founded the Life Sciences Industry Team at law firm Foley & Lardner LLP, where he is now partner. On page 22, he writes about legal issues affecting the use of human embryonic stem cell research.


Nicole Johnston, who is researching lytic enzymes from bacteriophage at Rockefeller University in New York, has written for New Scientist, Maclean's, The Globe &Mail, and Canadian Broadcasting Corporation radio. A recent transplant from Canada, and a regular contributor for The Scientist, Johnston writes on page 24 about how presenilin 1 interacts with other proteins to create the amyloid β fragments associated with Alzheimer disease.


Christopher Thomas Scott is an author, biologist and consultant living in San Francisco. He...

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