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Physics Preprint PDF DOI

Some Properties and Uses of the Species Scale

Luis E. Ibanez · 2026

The 'Species Scale' has proved to be an important concept when studying consistent effective actions in Quantum Gravity. This is a short summary of my contribution to the Corfu Summer Institute in Sep…

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Mathematics Preprint PDF DOI

Characterization of non-special divisors of small degree on Kummer extensions and LCP codes

Erik Mendoza, Horacio Navarro, Luciane Quoos · 2026

A recent construction of linear complementary pairs (LCPs) of algebraic geometry codes is intimately linked to the identification of non-special divisors of small degree within a function field over a…

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Earth & Environmental Sciences Preprint PDF DOI

The Physical Limit of Neural Hypoxia Detection in the Black Sea from Satellite Observations

Victor Mangeleer, Luc Vandenbulcke, Marilaure Gregoire, Gilles Louppe · 2026

Coastal hypoxia (O_2 < 63 [mmol / m^3]) threatens ocean health worldwide. Bottom oxygen consumed by respiration cannot be renewed, making monitoring essential to protect vulnerable marine ecosystems a…

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Education Preprint PDF DOI

USEQIP: Outcomes and experiences from 17 years of undergraduate summer schools in experimental quantum information science

John M Donohue, Michael J Grabowecky, George Nichols, Martin Laforest, Lino Eugene, Fiona Thompson, Peter Sprenger, Kevin Resch, David G Cory · 2026

To grow the quantum information science and technology workforce, opportunities for students to gain experiential learning and build a sense of belonging in the broader community are essential. The Un…

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Biology & Life Sciences Preprint PDF DOI

OxyPOM: a biogeochemical model for Oxygen and Particulate Organic Matter dynamics with detailed temperature sensitivity

Ovidio Garcia-Oliva, Carsten Lemmen · 2026

Periods of low dissolved oxygen concentration -- hypoxia and anoxia -- threaten the health of aquatic ecosystems and the services they provide.Hypoxia is strongly influenced by temperature, but the di…

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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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Physics Preprint PDF DOI

The Leiden/ESA Astrophysics Program for Summer Students (LEAPS)

S. Bellotti, A. D. Sellek, P. Sharda, K. M. Dutkowska, A. Chrimes, H. Rottgering · 2026

International student mobility plays a critical role in shaping future research careers, particularly in highly globalized fields such as astrophysics. The Leiden/ESA Astrophysics Program for Summer S…

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Computer Science Preprint PDF DOI

Same Project, Different Start: How Contribution Events Shape Activity and Retention in Open Source

Mohamed Ouf, Mariam Guizani · 2026

Open source projects depend on newcomers who stay, yet most leave after a single contribution. Contribution events such as Google Summer of Code, LFX Mentorship, Hacktoberfest, and 24 Pull Requests at…

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Earth & Environmental Sciences Preprint PDF DOI

climt-paraformer: Stable Emulation of Convective Parameterization using a Temporal Memory-aware Transformer

Shuochen Wang, Nishant Yadav, Joy Merwin Monteiro, Auroop R. Ganguly · 2026

Accurate representation of moist convective sub-grid-scale processes remains a major challenge in global climate models, as traditional parameterization schemes are both computationally expensive and …

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Mathematics Preprint PDF DOI

Regulation Zero 2: A Flow-Centric Sequential Regulation Planning Framework to Counter Regulation Cascading in Pre-tactical Air Traffic Flow Management

Thinh Hoang, Zhengyi Wang, Leila Zerrouki, Daniel Delahaye · 2026

Air Traffic Flow Management (ATFM) traffic regulations are being increasingly used as rising demand meets persistent workforce shortages. This operational strain has amplified a critical phenomenon th…

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Earth & Environmental Sciences Preprint PDF DOI

Oort Cloud Ecology - IV. Exchanging Asteroids

Erwan Hochart, Simon Portegies Zwart · 2026

Aims. Investigate the influence of cluster environments on asteroids, with special attention towards captured material. Methods. Using numerical methods, a sub-virial fractally distributed star-formin…

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Computer Science Preprint PDF DOI

Revisiting Code Debloating with Ground Truth-based Evaluation

Muhammad Bilal, Moiz Ali, Mohit Kumar, Fareed Zaffar, Fahad Shaon, Ashish Gehani, Sazzadur Rahaman · 2026

Program debloating aims to remove unused code to reduce performance overhead, attack surfaces, and maintenance costs. Over time, debloating has evolved across multiple layers (container, library, and …

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AI & Data Science Preprint PDF DOI

CT Open: An Open-Access, Uncontaminated, Live Platform for the Open Challenge of Clinical Trial Outcome Prediction

Jianyou Wang, Youze Zheng, Longtian Bao, Hanyuan Zhang, Qirui Zheng, Yuhan Chen, Yang Zhang, Matthew Feng, Maxim Khan, Aditya K. Sehgal, Christopher D. Rosin, Ramamohan Paturi, Umber Dube, Leon Bergen · 2026

Scientists have long sought to accurately predict outcomes of real-world events before they happen. Can AI systems do so more reliably? We study this question through clinical trial outcome prediction…

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AI & Data Science Preprint PDF DOI

Capturing Aleatoric Uncertainty in Climate Models

Cornelia Gruber, Henri Funk, Magdalena Mittermeier, Helmut Kuchenhoff, Goran Kauermann · 2026

Internal climate variability arises from the climate system's inherently chaotic dynamics. Quantifying it is essential for climate science, as it enables risk-based decision-making and differentiates …

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Mathematics Preprint PDF DOI

Degenerations of generalized Kummer varieties

Lars H. Halle, Klaus Hulek, Ziyu Zhang · 2026

We present a method to construct explicit degenerations of higher-dimensional generalized Kummer varieties. We start with a simple degeneration $f: \mathcal Y \to C$ of abelian surfaces. Then $ \mathc…

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Computer Science Preprint PDF DOI

A Universal Textual Merge Strategy Based on Tokens for Version Control Systems

Qiqi Jason Gu, Mikolas Janota · 2026

Merging is a core operation in version control systems such as Git, but traditional line-based algorithms often yield spurious conflicts, particularly in the presence of refactorings or parallel edits…

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Physics Preprint PDF DOI

Scattering lengths beyond the nuclear scale and the Efimov effect

F. Miguel Marques · 2026

The interaction of neutrons and nuclei at low energies may potentially lead to scattering lengths several orders of magnitude larger than the effective range of the interaction, well beyond the nuclea…

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Physics Preprint PDF DOI

Deriving volume density profiles of filaments from observed surface densities

Alexander Men'shchikov, Guo-Yin Zhang · 2026

Accurate characterization of filamentary structures in star-forming clouds is essential for understanding star formation. Traditional methods fit observed surface density profiles $\Sigma(r)$ with slo…

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Physics Preprint PDF DOI

No country for old stars -Spectroscopic confirmation of the first intermediate-age RR Lyrae in the open cluster Trumpler 5

Valentina D'Orazi, Cecilia Mateu, Giuliano Iorio, Alexey Bobrick, Zdenek Prudil, Ricardo Salinas, Angela Bragaglia, Lyudmila Mashonkina, Raffaele Gratton, Ilya Ilyn, Natalia Alvarez Baena, Vittorio F. Braga, Antonino Nunnari, Venu Kalari, Felice Cusano, Silvia Tosi · 2026

RR Lyrae stars are widely considered tracers of ancient (greater than 10 Gyr), metal-poor stellar populations. However, recent kinematic and photometric studies suggest the existence of a metal-rich R…

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Mathematics Preprint PDF DOI

Computation of Least Trimmed Squares: A Branch-and-Bound framework with Hyperplane Arrangement Enhancements

Xiang Meng, Andres Gomez, Rahul Mazumder · 2026

We study computational aspects of a key problem in robust statistics -- the penalized least trimmed squares (LTS) regression problem, a robust estimator that mitigates the influence of outliers in dat…

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