Ava Hoffman , PhD » R-Ladies complete list Go back to directory. Add to Address Book. Ava Hoffman, , PhD Postdoctoral Fellow Johns Hopkins UniversityEarth and Planetary Sciences City Baltimore MD United Stateshome Website: GitHub Biographical Info Interests: Ecology, genetics/bioinformatics, modeling, data science, sustainability, science outreach Contact method: Twitter Categories: Speaker, United States Updated 2 years ago.