Elizabeth Gudrais

Our sense of touch influences our actions

Tactile sensations change perceptions, says psychologist Christopher Nocera.

Harvard scholars and students fight HIV in sub-Saharan Africa

Harvard professors and students take aim at the social and behavioral factors that contribute to HIV.

The politics of paying for HIV care

In agreeing to help administer PEPFAR (President Bush's Emergency Plan for AIDS Relief), Harvard chose in part to step outside its traditional missions of training and research. But now that funding may be waning.

Network scientists at Harvard: Nicholas Christakis, Laura Bogart, Martin Nowak

Exploring the weblike structures that underlie everything from friendship to cellular behavior

Lee Fleming studies the influence of social-network structure on innovation

Lee Fleming studies the influence of one's social-network structure on innovation and creativity.

A language's network structure affects ease of processing and generating words

For ease or difficulty of processing and generating words in a given language, network structure matters.

"Networked" Web Extra: video and Web-exclusive sidebars on network science

Slime mold demonstrates the power of networks, fanning out to solve a maze and construct a railway map. Video and Web-exclusive sidebars to accompany the feature article "Networked."

Research by Harvard scholars on human social relations, online and offline

Making sense of the differences between online and offline friendship