* Deborah Jin, 34, Boulder, Colo.; a physicist at the National Institute of Standards who is studying the behavior of atoms near absolute zero.
* Angela Johnson, 42, Kent, Ohio; a children's novelist and poet whose works include "Gone From Home" and "Looking for Red."
* Tom Joyce, 46, Santa Fe, N.M.; a blacksmith who has brought modern artistry to his ancient craft.
* Sarah H. Kagan, 41, Philadelphia; an associate professor at the University of Pennsylvania who is working on standards and practices for treating elderly cancer patients.
* Jim Yong Kim, 43, Geneva; a public health physician with the World Health Organization who specializes in the control of infectious diseases.
* Nawal Nour, 37, Boston; an obstetrician and gynecologist at Brigham and Women's Hospital in Boston who founded a clinic addressing the medical and emotional needs of female immigrants who have been genitally circumcised.
* Loren Rieseberg, 42, Bloomington, Ind.; a botanist at Indiana University who uses sunflowers to study how species originate.
* Amy Rosenzweig, 36, Evanston, Ill.; a biochemist at Northwestern University researching the structural mechanisms for metal metabolism in living cells.
* Pedro A. Sanchez, 62, Upper Grandview, N.Y.; a soil scientist at Columbia University who specializes in improving land productivity in developing countries.
* Peter Sis, 54, New York; an illustrator and author whose work spans children's literature, journalism, graphic art and book publishing.
* Sarah Sze, 34, New York; an artist who uses everyday objects to create gravity-defying sculptures in horizontal and tower-like formations.
* Eve Troutt Powell, 42, Athens, Ga.; an associate professor of history at the University of Georgia who is focusing on the role of race in the social and cultural evolution of Egyptian identity and modern Islamic society.
* Anders Winroth, 38, New Haven, Conn.; an associate professor of medieval history at Yale University who is tracing the development of medieval canon law.
* Daisy Youngblood, 58, Santa Fe, N.M.; a sculptor working in clay and cast bronze.
* Xiaowei Zhuang, 31, Cambridge, Mass.; an assistant professor of chemistry and chemical biology at Harvard University who uses optical spectroscopic methods to reveal the behavior of individual molecules.
MacArthur Foundation