*What:* Dr. Nithya Ramanathan from Nexleaf Analytics on phone sensors for global health *When: *Tuesday, April 23 at 12pm *Where:* The Allen Center, CSE 203 *Abstract - Putting mobile phone sensors to work for global health and the environment* Big data represents a scientific paradigm shift. But as with other technologies, the benefits of big data will not be distributed equitably. Nexleaf is a research and development organization that builds low-cost sensors and mobile platforms to make big data more accessible. In this talk Ill describe several projects we are working on with NGOs, governments, and scientists around the world to create new sensors and data analytics that, when coupled with mobile platform based solutions, capture data that aim to improve the health and environment of people living on less than $4 per day. *Bio* Dr. Nithya Ramanathan is the President and Co-Founder of Nexleaf Analytics, and an Assistant Research Professor in Computer Science at the University of California Los Angeles. Dr. Ramanathan brings over 14 years of experience as a computer scientist, including her work in research and development at Intel and Hewlett-Packard, to the development of software architecture for mobile participatory sensing systems, with an emphasis on environmental and public health applications. Her work includes building systems for monitoring air pollution, wildlife conservation, cookstove financing, behavioral intervention, water access and coldchain monitoring around the world. Dr. Ramanathan received a highly competitive NIH Challenge Grant to develop AndWellness, a self-monitoring and self-management mobile phone application that provides real-time assessments and feedback on behavioral and environmental exposures for disease onset and progression for chronic diseases. Dr. Ramanathan received her Ph.D. in Computer Science from UCLA and holds a BS degree from the University of California at Berkeley in Electrical Engineering. She leads a number of projects with funding from the National Science Foundation, The Bill and Melinda Gates Foundation, Google, Qualcomm, Nokia, the U.S. Agency for International Development (USAID), Vodafone Foundation, the United Nations Environment Programme (UNEP), and the National Institutes of Health; additionally, she is a former Switzer Fellow, PopTech Social Innovation Fellow, and Rainer Arnhold Fellow.