RESEARCH LEADER OF THE YEAR: 1.Angela Belcher, Massachusetts Institute of Technology

BUSINESS LEADER OF THE YEAR: 2.Swiss Re

POLICY LEADER OF THE YEAR: 3.Vice President Al Gore

Other Research, Business and Policy Leaders

More Than Government Grants
4.Michael Kremer, Harvard University (policy)
5.Scott Johnson, Myelin Repair Foundation (policy)
6.Kathy Giusti, Multiple Myeloma Research Foundation (policy)
7.Christiane Nsslein-Volhard, Christiane Nsslein-Volhard Foundation (policy)
8.Warren E. Buffett, investor/philanthropist (policy)

On the Road to Green
9.Iogen Corporation (business)
10. Michikazu Hara, Tokyo Institute of Technology (research)
11. DaimlerChrysler (business)
12. General Motors, DaimlerChrysler and BMW (business)
13. EDrive Systems and Hymotion (business)

Unlocking Alzheimer's
14. John R. Cirrito and David M. Holtzman, Washington University in St. Louis School of Medicine (research)
15. Randall J. Bateman and David M. Holtzman, Washington University in St. Louis School of Medicine (research)
16. Robert P. Hammer, Louisiana State University (research)

Beginning to See the Light
17. Igor I. Smolyaninov, University of Maryland (research)
18. John B. Pendry, Imperial College London, David Schurig and David Smith, Duke University, and Ulf Leonhardt, University of St. Andrews (research)
19. Nader Engheta, University of Pennsylvania (research)

The Promise of the Mother Cell
20. Kevin Eggan, Harvard Stem Cell Institute (research)
21. Richard K. Burt, Northwestern University, Feinberg School of Medicine (research)
22. Laurie A. Boyer and Richard A. Young, Whitehead Institute for Biomedical Research (research)
23. Susan L. Lindquist, Whitehead Institute for Biomedical Research (research)
24. Representative Diana DeGette of Colorado and Representative Mike Castle of Delaware (policy)

Smart Tags Get Smarter
25. IMEC (business)
26. Eugenio Cantatore, Philips Research Laboratories (business)
27. Hewlett-Packard Laboratories (business)

Chicken-Wire Electronics
28. Andre K. Geim, University of Manchester, and Philip Kim, Columbia University (research)
29. Walter de Heer, Georgia Institute of Technology (research)
30. Prabhakar R. Bandaru, University of California, San Diego (research)
31. Ray H. Baughman, Mei Zhang and Shaoli Fang, NanoTech Institute, University of Texas at Dallas (research)

Growing Replacement Parts
32. William R. Wagner and Michael S. Sacks, University of Pittsburgh (research)
33. Cytograft (business)
34. Shulamit Levenberg, Technion-Israel Institute of Technology

Robots on the Move
35. Stanford Racing Team (research)
36. Jessy W. Grizzle, University of Michigan at Ann Arbor (research)

DNA Sequencing on the Cheap
37. George M. Church, Harvard Medical School (research)
38. 454 Life Sciences (business)
39. H. Kumar Wickramasinghe, IBM Almaden Research Center (business)

Material Progress
40. Natalia Dubrovinskaia, University of Bayreuth (research)
41. Pulickel M. Ajayan, Rensselaer Polytechnic Institute (research)
42. Antoni P. Tomsia, Lawrence Berkeley National Laboratory (research)
43. Daniel E. Morse, University of California, Santa Barbara (research)

Sight Savers
44. Larry I. Benowitz, Children's Hospital Boston (research)
45. Elizabeth Goldring, Center for Advanced Visual Studies, Massachusetts Institute of Technology (research)
46. Protagoras Cutchis, Johns Hopkins University (research)

Of Brain Maps and Saving the Internet
47. Christopher Monroe, University of Michigan at Ann Arbor, and David J. Wineland, National Institute of Standards and Technology (research)
48. Timothy Wu, Columbia University (policy)
49. Andrew J. Turberfield, University of Oxford (research)
50. Paul G. Allen, Allen Institute for Brain Science (research)


SCIENTIFIC AMERICAN

EDITORIAL CONTRIBUTORS
Mark Alpert, Steven Ashley, Charles Q. Choi, Graham P. Collins, Mariette DiChristina, Brie Finegold, W. Wayt Gibbs, JR Minkel, George Musser, Michelle Press, John Rennie, Ricki L. Rusting, Christine Soares, Gary Stix, Philip M. Yam

For extended coverage of the SA 50, including related podcasts, go to www.sciam.com/ontheweb