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Defenses

Ph.D. Final Defense - Andreas Towarnicky

9:00 AM – 11:00 AM

Benedum Hall, Pittsburgh, PA

Title: Understanding Proton-Coupled Electron Transfer on Polyoxometalates Abstract: Catalysis is essential to efficient chemical reactions, and improving its performance is key to meeting the challenges of global demand and sustainability while supporting our quality of life. Copious efforts pursue enhanced and innovative catalytic capabilities; however, their development still faces myriad complexities with incomplete understanding, slowing progress. Investigation via molecular models promises to unlock deeper understanding of the underlying physics, particularly when theoretical modelling…

Defenses

Ph.D. Final Defense - Dnyanesh Deepak Sarawate

11:00 AM – 1:00 PM

Benedum Hall, Pittsburgh, PA

Title: Electric-Field-Driven Ion Trapping and Tunable Relaxation Kinetics in Two-dimensional Transistors for Edge Computing Abstract: Two challenges that modern electronics face include processing sensor data directly on local devices (i.e., edge computing) and protecting hardware from reverse engineering. These two applications demand different memory behaviors: processing time-dependent signals requires a short-term, fading memory, whereas protecting hardware requires programmable doping that persists without constant power. One way to achieve time-dependent memory is through the use of i…

Defenses

PhD Dissertation Defense: Renata de Almeida Ramos

12:00 PM – 2:00 PM

Pittsburgh, PAapproximate location

Dissertation Defense for Renata de Almeida Ramos Date: Wednesday, Nov. 4, 2026 Time: 10 am to 12 pm PDT (Las Vegas) 1 pm to 3 pm EST (Pittsburgh)15 hrs to 17 hrs (São Paulo)Zoom Link: Available upon request. Contact Renata de Almeida Ramos at [email protected]. Dissertation Title: "The Felted Web - The Continuous Process of Becoming a Critical Teacher among Experienced Pedagogues in the Early Years of Elementary Education in Brazil and the United States" Dissertation Description: This study travels alongside five experienced early elementary public educators in São Paulo, Portland, and Washin…

Defenses

Dissertation Defense: Jipeng Zhang

7:30 AM

Public Health, Pittsburgh, PA

"Retinal AI for Macular Degeneration: Prediction, Image Quality, and Privacy Protection", Department of Biostatistics and Health Data Science, School of Public Health. Advisors and Committee Chairs: Wei Chen and Qiong Wu Abstract: Retinal imaging is fundamental to the diagnosis and monitoring of age-related macular degeneration (AMD), a leading cause of irreversible vision loss in older adults. Because AMD progression is gradual, heterogeneous, and asymptomatic in its early stages, clinical assessment alone is insufficient, creating demand for quantitative methods that leverage retinal imag…

Defenses

Dissertation Defense-Tianyue Qu

12:00 PM – 2:00 PM

Space Research Coordination Center, Pittsburgh, PA

CLIFF EVOLUTION THROUGH FEEDBACK BETWEEN DRAINAGE DIVIDE MIGRATION AND WATERFALL RETREAT: MECHANISM, RATES, AND TIMING Cliffs are steep slopes that separate low-relief highland plateaus from incised lowlands, forming topographic barriers that influence the routing of water and sediment and the spatial patterns of climate and biota. Cliffs whose tops align with drainage divides, where large rivers do not cross the cliff, are expected to retreat slowly and uniformly. However, such cliffs are often associated with deep embayments (i.e., alcoves) that destroy the cliff front even in landscapes…

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