A new partnership between a Homewood-based community group and researchers at the University of Pittsburgh Center for Health Equity aims to close the life expectancy gaps that exist based on where low-income people live. For example, in Highland Park, the life expectancy is 86 years, but just one neighborhood over, it’s 62. The project will engage the residents themselves and empower them to “put themselves in the role of researcher or scientist,” said Jim Fabisiak, a professor at the university. Efforts will focus on the effects of housing, employment, nutrition, and other factors on life expectancy.