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AI & Data Science Preprint PDF DOI

Estimating Population Viral Load Contextual Exposure Using GPS-Derived Activity Spaces in Rural South Africa

Zhaoxing Wu, Haoyang Wu, Thulile Mathenjwa, Elphas Okango, Khai Hoan Tram, Margot Otto, Maxime Inghels, Paul Mee, Diego Cuadros, Hae-Young Kim, Till Barnighausen, Frank Tanser, Adrian Dobra · 2026

This article introduces novel methodologies for estimating contextual exposure to HIV population viral load using GPS data. We propose a comprehensive analytical framework comprising (i) local (grid-c…

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Physics Preprint PDF DOI

Transport characteristics of bulk and edge states in an off-diagonal Aubry--Andr\'e--Harper chain

Moumita Patra · 2026

We investigate quantum transport in an off-diagonal Aubry--Andr\'e--Harper chain. The periodic hopping modulation generates effective internal boundaries that strongly influence the transmission chara…

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Physics Preprint PDF DOI

IQUEYE at Gemini South: instrument, science commission, and first results

Tomas Cassanelli, Pascual Marcone-Puga, Giampiero Naletto, Luca Zampieri, Paolo Ochner, Michele Fiori, Alessia Spolon, Susana B. Araujo Furlan, Albert Wai Kit Lau, Ryan Mckinven · 2026

The Italian quantum eye (IQUEYE) is a fast photon counter based on the single photon avalanche diode detectors and capable of preserving a ~0.5 ns/h accuracy photon time of arrival. IQUEYE was origina…

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Computer Science Preprint PDF DOI

Do E-Scooter Speed Governance Policies Reduce Harsh Acceleration and Deceleration? Evidence from 19.5 Million Trips Around a Regulatory Ban

Seongjin Choi, Sunbin Yoo, Sugie Lee · 2026

Do e-scooter speed governance policies yield behavioral safety gains beyond the mechanical cap they impose? A firmware ceiling mechanically prevents speeding, but whether the same riders also generate…

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Physics Preprint PDF DOI

Characterization of Thermalization Behaviour in a Generalized Aubry-Andr\'e Model

S. Mal, D. K. Nandy, B. K. Sahoo · 2026

Although random matrix theory provides a fundamental framework for characterizing quantum chaos, encompassing both ergodic and localized phases, a comprehensive understanding of the universal features…

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AI & Data Science Preprint PDF DOI

Wiki Dumps to Training Corpora: South Slavic Case

Mihailo Skoric · 2026

This paper presents a methodology for transforming raw Wikimedia dumps into quality textual corpora for seven South Slavic languages. The work is divided into two major phases. The first involves extr…

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Physics Preprint PDF DOI

Symmetric kiloparsec-scale radio knots in NGC 7213: evidence for a confined weak jet and recurrent nuclear activity

G. Bruni, F. Panessa, E. Kammoun, A. L. Thakur, C. Reynolds, R. Ricci, M. Wieringa, S. Bianchi, A. De Rosa, G. Matt, F. Nicastro, F. Ursini · 2026

Low-luminosity active galactic nuclei (LLAGN) often host weak radio jets whose propagation is shaped by the surrounding interstellar medium. We investigate the nearby LLAGN NGC7213 to assess its abili…

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Earth & Environmental Sciences Preprint PDF DOI

Exploring the Impact of Tilted Magnetic Dipoles on the Atmospheric Dynamics of Hot Jupiters: Towards an Improved Magnetohydrodynamic Framework

James Fecanin, Hayley Beltz, John Allen, Thaddeus Komacek · 2026

The atmospheres of hot Jupiters lie in a dynamical regime without a solar system analogue. The strongly irradiated daysides reach temperatures sufficiently hot for substantial thermal ionization of at…

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Sociology & Anthropology Preprint PDF DOI

Estimating the cascading global impacts of gas disruptions in Qatar

Ritwick Mishra, Diksha Gupta, Achla Marathe, Krista Danielle Yu, Aaron Schroeder, Samarth Swarup, Brian Klahn, Phil Potter, Madhav Marathe, Anil Vullikanti · 2026

This study examines the global impacts of a localized disruption in Qatar's gas sector using a multi-regional input-output framework and scenario-based analysis. While the direct impacts of this disru…

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Physics Preprint PDF DOI

Geometry of transient gravitational waves and estimation of efficiencies of different detector configurations

Osvaldo M. Moreschi · 2026

This work introduces a geometrical method for analyzing transient gravitational waves recorded at interferometric observatories. This approach is intended to aid in assessing the performance and sensi…

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Computer Science Preprint PDF DOI

Mapping Emerging Climate Misinformation Playbooks in the Global South

Marcelo Sartori Locatelli, Wenchao Dong, Pedro Loures Alzamora, Pedro Dutenhefner, Wagner Meira Jr., Meeyoung Cha, Virgilio Almeida · 2026

Climate misinformation continues to erode support for climate action, a challenge that is especially acute in the Global South, where high climate vulnerability intersects with development pressures. …

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Mathematics Preprint PDF DOI

Dimension of the motivic Galois group of a 1-motive

Cristiana Bertolin · 2026

We compute the dimension of the motivic Galois group of a 1-motive M defined over the field of complex numbers, expressing it explicitly in terms of the rank of the multiplicative group generated by t…

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Mathematics Preprint PDF DOI

$q$-Derivative Grammar

Guo-Niu Han, Kathy Q. Ji, Huan Xiong · 2026

The concept of context-free grammar in Combinatorics was first introduced by Chen in 1993. In 1996, Dumont significantly extended the theory of context-free grammars to a variety of other combinatoria…

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AI & Data Science Preprint PDF DOI

Machine Learning and Deep Learning Models for Short Term Electricity Price Forecasting in Australia's National Electricity Market

Wei Lu, Jay Wang, Dingli Duan, Ding Mao, Caiyi Song, John Huang · 2026

Short term electricity price forecast is essential in competitive power markets, yet electricity price series exhibit high volatility, irregularity, and non-stationarity. This phenomenon is pronounced…

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Mathematics Preprint PDF DOI

Generalized Aubry-Andr\'e formula and continuity of the intersection spectrum of the Almost Mathieu operator

Anton Gorodetski, Victor Kleptsyn · 2026

We consider the spectrum of the Almost Mathieu operator (AMO) and show that the moments of the restriction of the Lebesgue measure to the intersection spectrum $\text{Leb}|_{\Sigma_{\alpha,\lambda}}$ …

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Physics Preprint PDF DOI

The Vertical Structure and Asymmetry of Mg ii-enriched Gas in the Milky Way Disk

Xiaochuan Jiang, Taotao Fang, Shulan Yan · 2026

The physical properties of Milky Way Mgii-bearing gas remain poorly constrained due to the saturation of the near-UV doublet. We utilize the weaker Mgii $\lambda\lambda$1239, 1240 doublet from 482 arc…

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Mathematics Preprint PDF DOI

Hybrid Conjecture in a Mixed Shimura variety

Rodolphe Richard, Andrei Yafaev · 2026

The authors previously formulated the hybrid conjecture, unifying Andr\'e-Pink-Zannier and Andr\'e-Oort conjectures, and proved it in Shimura varieties of abelian type. We study its analogue for mixed…

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Engineering Preprint PDF DOI

Adaptive Spatial-Temporal Graph Learning-Enabled Short-Term Voltage Stability Assessment against Time-Varying Topological Conditions

Chao Deng, Lipeng Zhu, Chang Liu, Hefeng Zhai, Baoye Tian, Zexiang Zhu, Jiayong Li, Cong Zhang · 2026

The emerging deep learning (DL) technology has recently exhibited great potential in data-driven short-term voltage stability (SVS) assessment of complex power grids. However, without sufficient atten…

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AI & Data Science Preprint PDF DOI

VS-DDPM: Efficient Low-Cost Diffusion Model for Medical Modality Translation

Nikoo Moradi, Gijs Luijten, Behrus Hinrichs-Puladi, Jens Kleesiek, Victor Alves, Jan Egger, Andre Ferreira · 2026

Diffusion models produce high-quality synthetic data but suffer from slow inference. We propose 3D Variable-Step Denoising Diffusion Probabilistic Model (VS-DDPM) a framework engineered to maintain ge…

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AI & Data Science Preprint PDF DOI

When Cow Urine Cures Constipation on YouTube: Limits of LLMs in Detecting Culture-specific Health Misinformation

Anamta Khan, Ratna Kandala, Deepti, Sheza Munir, Joyojeet Pal · 2026

Social media platforms have become primary channels for health information in the Global South. Using gomutra (cow urine) discourse on YouTube in India as a case study, we present a post-facto Large L…

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