Graduate Affiliates 2021-2022 (2022-2023 GA list will be final in August)

Rosie Aboody is a fourth year PhD student in Psychology, and she studies how we teach and learn from others. Outside of the lab, Rosie likes to make art, drink hot cocoa, and stare up at the sky in delight when it snows. If you want to know why kids are interesting study populations, or are feeling down and want to hear cute stories about tiny humans, come say hi! 

Vlad Chituc is a second year PhD student in Social Psychology studying moral judgment and decision making. He grew up in a small town in rural, upstate New York before graduating from Yale in 2012 with a B.S, in social psychology (TD ‘12, please don’t hold it against him). He spent the next five years in Durham, NC, where he grew to appreciate folk sing-a-longs, baking bread, and living a bit more slowly. Ask him about music (he’s played in a few bands and collects records), writing (especially creative nonfiction and science journalism), and his dog, Toad (Vlad will always be happy to show you photos and go on about how perfect he is).

Andy DeGuglielmo is a 2L at Yale Law School from Boston. He graduated from Yale College in 2018 with a degree in Political Science and German Literature. As a former Sillimander, some of his best memories include late nights int he buttery and impromptu freestyle study breaks with his roommates in the dance studio. At YLS, he’s particularly interested in federal Indian law, tribal constitutionalism, child welfare, citizenship theory, and immigration law. Don’t hesitate to reach out to talk about law school, internships, political & legal theory, literary theory, or anything else you’re passionate about!

Alexander Goldklank Fulmer is a first year PhD student in Behavioral Marketing. He grew up in Manhattan and graduated from Cornell’s School of Hotel Administration in 2015. After Cornell, Alexander worked in marketing and completed a Psychology program at Columbia University before enrolling at Yale. He loves college history and trivia, is interested in fashion, writing fiction, watching college hockey games, and studying the psychology underlying human behavior. Please feel free to ask Alexander for help with any aspects of the job/internship application process like resume or cover letter writing, or anything else that’s on your mind!


Chris Harshaw is a fourth year PhD student in the Computer Science department where he studies algorithms and optimization at the Yale Institute for Network Science. Born and raised in Dallas, he graduated from Rice University with degrees in computational mathematics and electrical engineering. When he’s not at the white board, Chris enjoys playing jazz music, cooking, and taking long walks around science hill. He’s excited to be part of the Silliman community and loves interacting with students. Talk to me about your favorite music, maker spaces, mathematics education, Texas, and anything you’re passionate about.

Ridge Liu is a second year PhD student in Physics studying high energy/particle physics. A Houston native, he graduated from Rice University as a physics and mathematics major, with a special concentration in eating Viet-Cajun crawfish. Outside of reading papers, Ridge enjoys day hikes, swimming, playing the violin, and exploring food cultures. Talk to him about Houston, cooking, books, trivia, or anything that strikes your fancy!

Ellen Nye is a third-year history PhD student studying British and Ottoman economic relations. She grew up in a college town in the Rocky Mountains of Wyoming where she enjoying skiing, hiking, and running. She graduated from Dartmouth College in 2014 and then earned an MPhil from the University of Cambridge. Before Yale, she spent a year in Istanbul through the Fulbright learning Turkish, working on her research, and eating as much moussaka as possible. Ask her about the Rocky Mountains, studying in the U.K., Turkey, fellowships, and anything historical! 

 Kirsten Reimer is a fourth-year PhD student in the Molecular Biophysics and Biochemistry department where she studies RNA splicing in the context of red blood cell development. She grew up in Prince George, Canada, where she earned a BSc in Biochemistry and Molecular Biology at the University of Northern British Columbia. When she’s not in the lab, Kirsten enjoys being outdoors — especially skiing, hiking, and swimming — reading, doing crosswords, playing piano, and riding her bike.

Madison “Maddy”  Sharp is in her fourth year at the Yale School of Medicine. She grew up in the rolling hills of San Diego before attending Yale College. A proud former Sillimander, Maddy fondly recalls playing inner tube water polo and working in the buttery. After college Maddy worked with sugarcane workers suffering from kidney disease in Nicaragua. As a medical student, she is especially interested in working with displaced populations in conflict zones. Ask her about global health, effective altruism, and road tripping from England to Uzbekistan.

Emily Sigman is a Colorado native interested in agroforestry, food systems, and ecosystem behavior.  She is a National Science Foundation Graduate Research Fellow studying jointly at the School of Forestry and the Jackson Institute for Global Affairs.  She’s the manager of the Yale Community Forest Garden, a co-founder of the Yale Agroforestry Collaborative, and a co-leader of the Coalition for Agriculture Food and the Environment and the Yale Ethnobotany and Mycology Society.  You can often find her tinkering in various gardens around campus, teaching herbal medicine workshops, running with her magnificent companion Toly-The-Wonder-Dog, foraging for mushrooms, and looking at maps dreaming of faraway adventures.


Zachary Silver is a PhD student in Developmental Psychology.  Zach work with Dr. Laurie Santos in the Comparative Cognition Lab where he researches how dogs and other nonhuman animals experience the social world. In his free time he enjoys running and hiking with his dog and composing the music for The Happiness Lab podcast.