Brain and Behavior
Includes neuroscience and psychology.

Education
Includes economics and political science.

Environment and Ecology
Includes agriculture, food and renewable resources; geology and geography; and atmospheric and hydrospheric science.

General Interest
Includes science that covers a range of subjects.

Genomics and Proteomics
Includes biological, chemical, and cellular sciences.

Information, Math, and the Internet
Includes statistics, computers, information technology, and industrial science.

Medicine and Public Health
Includes dentistry and oral health sciences, medical and pharmaceutical sciences.

Molecular and Cellular
Includes organismic life sciences and biological and chemical sciences.

Nanotechnology
Includes materials science.

Organismic
Includes science relating to organisms.

Physical Sciences
Includes astronomy, physics, and chemistry.

Social Sciences
Includes education, language and culture, anthropology, economics, and political science.

Technology and Engineering
Includes statistics, computers, information technology, and industrial science.