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Physics Preprint PDF DOI

A common four-beam geometry reveals altitude-stratified GeV pulses in canonical young pulsars

Paul K. H. Yeung, Takayuki Saito · 2026

Despite the diversity and energy dependence of $\gamma$-ray pulse morphologies in Crab, Vela and Dragonfly, the phaseograms of these three canonical young pulsars can be organised within a single four…

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Computer Science Preprint PDF DOI

Enhancing multimodal affect recognition in healthcare: the robustness of appraisal dimensions over labels within age groups and in cross-age generalisation

Hippolyte Fournier, Sina Alisamir, Safaa Azzakhnini, Isabella Zsoldos, Eleonore Tran, Gerard Bailly, Frederic Elisei, Beatrice Bouchot, Brice Varini, Patrick Constant, Joan Fruitet, Franck Tarpin-Bernard, Solange Rossato, Francois Portet, Olivier Koenig, Hanna Chainay, Fabien Ringeval · 2026

The integration of artificial intelligence (AI) into healthcare has advanced significantly, yet affect recognition remains a major challenge, particularly in AI-assisted interventions such as Computer…

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Computer Science Preprint PDF DOI

Towards an Ethical AI Curriculum: A Pan-African, Culturally Contextualized Framework for Primary and Secondary Education

Abidemi Kuburat Adedeji, Franklin Tchakounte, Sulaiman Oluwasegun Yusuff · 2026

Artificial intelligence (AI) is now embedded in educational, civic, and economic systems worldwide. For African primary and secondary education, this creates a double imperative: to prepare a young po…

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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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Earth & Environmental Sciences Preprint PDF DOI

Formation and Trapping of CO2 from Cryogenic Irradiation of Carbonate

Ashma Pandya, Swaroop Chandra, Michael E. Brown · 2026

The detection of CO2 on the Jovian satellite Europa by Galileo NIMS and recent mapping of the leading side by JWST has revealed that it is most concentrated in geologically young terrains, and its v3 …

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Physics Preprint PDF DOI

SPYGLASS. VII-B. Tracing the Fragments of Massive Star Formation Using Low-Mass Associations

Ronan Kerr, Adam L. Kraus, Jonathan C. Tan, Julio Chaname, Facundo Perez Paolino, Joshua S. Speagle, Juan P. Farias, Jose G. Fernandez-Trincado, Keith Hawkins · 2026

New observations from the Gaia spacecraft have traced an emerging demographic of low-mass associations disconnected from larger associations or GMCs. The first of these associations were recently char…

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Physics Preprint PDF DOI

Coupling between stellar and HI lopsidedness in Milky Way-type galaxies from the Auriga Superstars cosmological simulations

Arianna Dolfi, Facundo A. Gomez, Rebekka Bieri, Francesca Fragkoudi, Robert J. J. Grand, Antonela Monachesi, Ruediger Pakmor, Freeke van de Voort · 2026

Lopsidedness is common in disk galaxies, yet its origin and evolution remain unclear. Previous studies typically examined stellar and gas asymmetries separately, but a combined analysis offers a stron…

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Physics Preprint PDF DOI

Blueberry and Green Pea galaxies live in low density environments

Maitrayee Gupta, Jiri Svoboda, Konstantinos Kouroumpatzakis, Nicolas Peschken, Peter G. Boorman, Abhijeet Borkar · 2026

Little is currently known about the large-scale environments of Green Pea (GP) and Blueberry (BB) galaxies, which are low-mass, compact systems with extreme specific star-formation rates (sSFR). Their…

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Physics Preprint PDF DOI

Nature and nurture: the dynamical ages of in situ and accreted globular clusters in the Milky Way

Eugenio Carretta (INAF - Osservatorio di Astrofisica e Scienza dello Spazio di Bologna) · 2026

The bifurcated age-metallicity relation of globular clusters (GCs) in the Milky Way (MW) shows that GCs are either originated in situ or accreted into the Galaxy from former satellites of the MW. The …

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Physics Preprint PDF DOI

Covariant Construction of Generalized Form Factors

Hao Sun, Tuo Tan, Jiang-Hao Yu · 2026

We present a systematic technique for constructing the Lorentz-covariant structures of hadronic matrix elements of local operators. The spinor Young tableaux of the Lorentz group is employed to constr…

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Physics Preprint PDF DOI

Characterisation of the Clouds' young stellar Bridge using Gaia DR3

Marie Scholch, Oscar Jimenez-Arranz, Merce Romero-Gomez, Xavier Luri · 2026

The interaction between the LMC and SMC (the Clouds) has resulted in prominent tidal features, including an extended bridge of gas and stars connecting the two galaxies. This Bridge has likely formed …

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Mathematics Preprint PDF DOI

Fluctuation from averaging limit under fractional Brownian motion

Xiaoyu Yang, Yong Xu · 2026

This work considers a type of slow-fast system, where the slow component is driven by fractional Brownian motion with H > 1/2 and the fast component is a Markovian stationary process. Our solution map…

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Physics Preprint PDF DOI

Cosmological Impact of Redshift-Dependent Type Ia Supernovae Calibration

Seyed Hamidreza Mirpoorian, Meng-Xiang Lin, Levon Pogosian · 2026

Type Ia supernovae (SNIa) play a central role in constraining the late-time expansion history of the Universe and are directly implicated in current cosmological tensions. Motivated by the possibility…

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Neuroscience Preprint PDF DOI

The Genetic and Environmental Architecture of the Human Functional Connectome

Tanu Raghav, Daniel Guerrero, Uttara Tipnis, Julie Sara Benny, Mintao Liu, Mario Dzemidzic, Arian Ashourvan, Alex P. Miller, Beau Ances, Jaroslaw Harezlak, Joaquin Goni · 2026

Functional connectivity varies across individuals due to genetic and environmental factors, yet classical twin models typically confound non-shared environment with measurement error and are largely l…

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Earth & Environmental Sciences Preprint PDF DOI

A very eccentric brown dwarf coplanar to a warm Jupiter and a hot super Earth

Matias I. Jones, Luca Naponiello, Trifon Trifonov, Rafael Brahm, Gabriele Pichierri, Lorena Acuna-Aguirre, Robert J. De Rosa, Marcelo Tala Pinto, Aldo S. Bonomo, Luigi Mancini, Alessandro Sozzetti, Yared Reinarz, Alessandro Morbidelli, Nestor Espinoza, Giovanni Rosotti, Eric L. Nielsen, Stefan Y. Stefanov, Thomas Henning, Andres Jordan, Jan Eberhardt, Artie Hatzes, Leonardo Vanzi, Jan Janik, Petr Kabath · 2026

In transiting planetary systems, where planetary sizes are accurately determined from transit observations, the presence of transit timing variations (TTVs), especially when combined with radial veloc…

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Mathematics Preprint PDF DOI

Recursive Record Filtering and Longest Decreasing Subsequences

Jackson Zariski, Kaitlin Kratter · 2026

We consider a recursive record-filtering procedure, which we informally call Disappear-Sort. Let $D_n$ denote the random variable giving the required number of passes in Disappear-Sort to eliminate a …

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Physics Preprint PDF DOI

From Random Fringes to Deterministic Response: Statistical Foundations of Time-Reversed Young Interferometry

Jianming Wen · 2026

Young interference is usually read as the gradual statistical accumulation of random detection events. Here we show that a time-reversed Young (TRY) geometry has a different statistical character: the…

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AI & Data Science Preprint PDF DOI

Liquid Neural Network Models for Natural Gas Spot Price Time-Series Forecasting

Yiqian Liu, Jiayi Niu, Adam Kelleher, Subhabrata Das · 2026

Natural gas is undoubtedly an essential component of the global energy system. Accurate short-term forecasting of natural gas price is challenging due to pronounced volatility driven by seasonal deman…

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Physics Preprint PDF DOI

Dynamical masses of young stellar objects with the VLBA: DYNAMO-VLBA: Radio binary stars in Orion

Sergio A. Dzib, Jazmin Ordonez-Toro, Laurent Loinard, Marina Kounkel, Gisela Ortiz-Leon, Phillip A. B. Galli, Luis F. Rodriguez, Amy J. Mioduszewski, Josep M. Masque, Eoin O'Kelly, Jan Forbrich, Karla Moo-Herrera · 2026

We present results from a multi-epoch Very Long Baseline Array (VLBA) survey conducted as part of the DYNAMO-VLBA project, aimed at measuring the dynamical masses of young stellar systems in the Orion…

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Physics Preprint PDF DOI

Supermassive stars with embedded stellar black hole cores: dense assembling star clusters as faint multiple Little Red Dot systems

Antti Rantala · 2026

Numerical simulations have established that star clusters with densities comparable to the high redshift ($z>6$-$10$) James Webb Space Telescope (JWST) proto globular clusters may build up extremely m…

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