The University of Massachusetts Amherst

University of Massachusetts Amherst University of Massachusetts Amherst
Academics

Doctoral Oral Exams for May 25-29, 2026

The graduate dean invites all graduate faculty to attend the final oral examinations for the doctoral candidates scheduled as follows:

Brett Mullins, Ph.D., Computer Science, Tuesday, May 26, 9 a.m., CSL E300. Dissertation: “Practical Algorithms for Differentially Private Marginal Query Answering.” Daniel Sheldon, chair.

Alex Winsor, Ph.D., Organismic and Evolutionary Biology, Tuesday, May 26, 1 p.m., French Hall 209. Dissertation: “Visual Cognition and its Neural Substrates in Jumping Spiders.” Elizabeth Jakob, chair.

Luke Chaplinsky, Ph.D., Physics, Tuesday, May 26, 2 p.m., LGRT 1033 and via Zoom. Dissertation: “Progress Toward a Precision Measurement of Coherent Elastic Neutrino-Nucleus Scattering in the Ricochet Experiment.” Scott Hertel, chair.

Kaitlyn M. Gilliam, Ph.D., Molecular and Cellular Biology, Wednesday, May 27, 10 a.m., LGRT 1681. Dissertation: “Nanopore Tweezer Analysis of Flavivirus Protease Conformations, Inhibition and Co-Folding Properties.” Min Chen, chair.

Ankita Gupta, Ph.D., Computer Science, Wednesday, May 27, noon, CSL E120. Dissertation: “Understanding Argumentative Texts at Scale for High-Stakes Decision-Making in Social Contexts.” Brendan O’Connor, chair.

Sean Van Geldern, Ph.D., Physics, Wednesday, May 27, 2 p.m., LGRT 1033 and via Zoom. Dissertation: “Extending the Lifetime of a Cat by Paring it up with a Friend.” Chen Wang, chair.

Kaito Hioki, Ph.D., Molecular and Cellular Biology, Thursday, May 28, 10 a.m., LSL N610. Dissertation: “Transcriptional Changes in T Lymphocytes Acquiring Tissue Cytoplasmic Components.” Leonid Pobezinsky, chair.

Melissa Paciulli, Ph.D., Civil and Environmental Engineering, Thursday, May 28, 11 a.m., 118 ELab II. Dissertation: “Understanding and Improving ADHD Driver Performance in an Immersive Environment.” Song Gao, chair.

Chavon Rogers, Ph.D., Economics, Thursday, May 28, noon, Crotty Hall 308 and via Zoom. Dissertation: “Three Essays on Climate Change and Small Island Economies.” Léonce Ndikumana, chair.

Dhawal Gupta, Ph.D., Computer Science, Thursday, May 28, 1 p.m., via Zoom. Dissertation: “Improving Temporal Credit Assignment in Reinforcement Learning.” Bruno Castro da Silva, chair.