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AI & Data Science Preprint PDF DOI

From Chatbots to Confidants: A Cross-Cultural Study of LLM Adoption for Emotional Support

Natalia Amat-Lefort, Mert Yazan, Amanda Cercas Curry, Flor Miriam Plaza-del-Arco · 2026

Large Language Models (LLMs) are increasingly used not only for instrumental tasks, but as always-available and non-judgmental confidants for emotional support. Yet what drives adoption and how users …

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Medicine & Health Preprint PDF DOI

Benchmarking Open-Source FDK Against Commercial and Iterative Reconstruction Methods for Preclinical Micro-CBCT

Falk L Wiegmann, Nancy L Ford · 2026

Preclinical micro-CT reconstruction involves large projection sizes and volumes that make iterative methods costly - 5x to 50x slower than analytic alternatives on modern GPUs. Whether this cost is ju…

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AI & Data Science Preprint PDF DOI

Anatomy-Aware Unsupervised Detection and Localization of Retinal Abnormalities in Optical Coherence Tomography

Tania Haghighi, Sina Gholami, Hamed Tabkhi, Minhaj Nur Alam · 2026

Reliable automated analysis of Optical Coherence Tomography (OCT) imaging is crucial for diagnosing retinal disorders but faces a critical barrier: the need for expensive, labor-intensive expert annot…

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Physics Preprint PDF DOI

Partial oracles quantum algorithm framework -- Part I: Analysis of in-place operations

Fintan M. Bolton · 2026

The partial oracles framework is a quantum search algorithm that has the potential to exceed the quadratic speedup of Grover's algorithm, up to a theoretical maximum of an exponential speedup. Until n…

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Physics Preprint PDF DOI

How do sub-bandgap reflectors affect the performance of PV modules?

Klaus Jager, Jyotirmoy Mandal, Barry P. Rand, Forrest Meggers, Christiane Becker · 2026

Sub-bandgap reflectors (SBR) can reduce the temperature of photovoltaic (PV) modules by reflecting the near-infrared region of the solar spectrum with photon energies smaller than the electronic bandg…

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Computer Science Preprint PDF DOI

Physical and Augmented Reality based Playful Activities for Refresher Training of ASHA Workers in India

Arka Majhi, Satish B. Agnihotri, Aparajita Mondal · 2026

Recent health surveys in India highlight the alarming child malnutrition levels and lower rates of complete child immunization in many parts of India. Previous researches report that the conventional …

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Physics Preprint PDF DOI

A Unified Hardware-to-Decoder Architecture for Hybrid Continuous-Variable and Discrete-Variable Quantum Error Correction in LiDMaS+

Dennis Delali Kwesi Wayo, Chinonso Onah, Leonardo Goliatt, Sven Groppe · 2026

We present an architecture-level hardware-to-logical-to-decoder execution stack for hybrid continuous-variable and discrete-variable quantum error correction in LiDMaS+. Provider-native records are no…

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Chemistry Preprint PDF DOI

Perspective on a challenge: predicting the photochemistry of cyclobutanone

Jiri Janos, Nanna Holmgaard List, Andrew J. Orr-Ewing, Jiri Suchan, Mario Barbatti, Olivia Bennett, Marcus Brady, Javier Carmona-Garcia, Rachel Crespo-Otero, Julien Eng, O. Jonathan Fajen, Marco Garavelli, Sandra Gomez, Alice E. Green, Federico J. Hernandez, Daniel Hollas, Lewis Hutton, Lea M. Ibele, Adam Kirrander, Zhenggang Lan, Yorick Lassmann, Joseph E. Lawrence, Benjamin G. Levine, Dmitry V. Makhov, Jonathan R. Mannouch, Xincheng Miao, Roland Mitric, Shane M. Parker, Thomas J. Penfold, Jiawei Peng, Jeremy O. Richardson, Dmitrii Shalashilin, Petr Slavicek, K. Eryn Spinlove, Patricia Vindel-Zandbergen, Federica Agostini, Sara Bonella, Todd J. Martinez, Graham A. Worth, Basile F. E. Curchod · 2026

This Perspective is part of a Special Topic that explored the maturity of nonadiabatic molecular dynamics for predicting photochemical processes. In 2023, a prediction challenge was issued to the comm…

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AI & Data Science Preprint PDF DOI

A Workflow to Efficiently Generate Dense Tissue Ground Truth Masks for Digital Breast Tomosynthesis

Tamerlan Mustafaev, Oleg Kruglov, Margarita Zuley, Luana de Mero Omena, Guilherme Muniz de Oliveira, Vitor de Sousa Franca, Bruno Barufaldi, Robert Nishikawa, Juhun Lee · 2026

Digital breast tomosynthesis (DBT) is now the standard of care for breast cancer screening in the USA. Accurate segmentation of fibroglandular tissue in DBT images is essential for personalized risk e…

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AI & Data Science Preprint PDF DOI

Governed Reasoning for Institutional AI

Mamadou Seck · 2026

Institutional decisions -- regulatory compliance, clinical triage, prior authorization appeal -- require a different AI architecture than general-purpose agents provide. Agent frameworks infer authori…

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Mathematics Preprint PDF DOI

Astrolabe: A Content-Addressable Hypergraph for Semantic Knowledge Management

Xinze Li · 2026

Existing knowledge management tools either preserve prose but lose structural relationships, or capture relationships but restrict edge semantics to fixed vocabularies. We introduce Astrolabe, a conte…

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Mathematics Preprint PDF DOI

Reminiscences of S. K. Godunov. The Russian Mathematician

Eleuterio F. Toro · 2026

These personal reminiscences of the great Russian mathematician Sergey K. Godunov (1929-2023) arose from a request by his daughter, Ekaterina, to contribute a piece to a book she is writing about her …

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AI & Data Science Preprint PDF DOI

Hierarchical Alignment: Enforcing Hierarchical Instruction-Following in LLMs through Logical Consistency

Shu Yang, Zihao Zhou, Di Wang, Wenda Li · 2026

Large language models increasingly operate under multiple instructions from heterogeneous sources with different authority levels, including system policies, user requests, tool outputs, and retrieved…

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Computer Science Preprint PDF DOI

AITH: A Post-Quantum Continuous Delegation Protocol for Human-AI Trust Establishment

Zhaoliang Chen · 2026

The rapid deployment of AI agents acting autonomously on behalf of human principals has outpaced the development of cryptographic protocols for establishing, bounding, and revoking human-AI trust rela…

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Mathematics Preprint PDF DOI

Sha-rigidity of adjoint Chevalley groups of types $A_1$, $A_2$, $B_2$, $G_2$ over commutative rings

Elena Bunina, Vazgen Kirakosyan, Rachel Treskunov · 2026

We prove that every locally inner (class-preserving) endomorphism of adjoint Chevalley groups and their elementary subgroups over commutative rings is inner for the root systems A1, A2, B2 (assuming 2…

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Engineering Preprint PDF DOI

Probabilistic Frequency Hazard Analysis: Adapting the Seismic Hazard Framework to Power System Frequency Exceedance Risk

Sewedo Todowede · 2026

The declining synchronous inertia in power systems undergoing the energy transition increases the sensitivity of system frequency to generation and interconnector disturbances, making accurate frequen…

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Computer Science Preprint PDF DOI

Transient Non-Use: How People in Migration Experience Digital Disconnection

Jonathan Leuenberger, Anamika Rajendran, Augusto Penzo Jara, Tajwar-Ul Hoque, Shiva Darian · 2026

People experiencing migration endure many transitions across borders, technologies, and social systems. While HCI research often emphasizes this community's adoption of technology, less attention has …

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Computer Science Preprint PDF DOI

An Unconditional Barrier for Proving Multilinear Algebraic Branching Program Lower Bounds

Deepanshu Kush · 2026

Since the breakthrough superpolynomial multilinear formula lower bounds of Raz (Theory of Computing 2006), proving such lower bounds against multilinear algebraic branching programs (mABPs) has been a…

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AI & Data Science Preprint PDF DOI

Spatiotemporal Characterization of Overdose Mortality in Georgia, USA Using Spectral and Nonlinear Interaction Analysis, 2003-2021

Dhrubajyoti Ghosh · 2026

Drug overdose mortality in the United States exhibits strong geographic heterogeneity and complex temporal evolution, yet most spatiotemporal studies focus on trends and risks without explicitly chara…

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AI & Data Science Preprint PDF DOI

TSHA: A Benchmark for Visual Language Models in Trustworthy Safety Hazard Assessment Scenarios

Qiucheng Yu, Ruijie Xu, Mingang Chen, Xuequan Lu, Jianfeng Dong, Chaochao Lu, Xin Tan · 2026

Recent advances in vision-language models (VLMs) have accelerated their application to indoor safety hazards assessment. However, existing benchmarks suffer from three fundamental limitations: (1) hea…

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