Tootfinder

Mapping the Gravitational-wave Background Across the Spectrum with a Next-Generation Anisotropic Per-frequency Optimal Statistic
Kyle A. Gersbach, Stephen R. Taylor, Bence B\'ecsy, Anna-Malin Lemke, Andrea Mitridate, Nihan Pol
https://arxiv.org/abs/2509.07090

Mapping the Gravitational-wave Background Across the Spectrum with a Next-Generation Anisotropic Per-frequency Optimal Statistic
With pulsar timing arrays (PTAs) having observed a gravitational wave background (GWB) at nanohertz frequencies, the focus of the field is shifting towards determining and characterizing its origin. While the primary candidate is a population of GW-emitting supermassive black hole binaries (SMBHBs), many other cosmological processes could produce a GWB with similar spectral properties as have been measured. One key argument to help differentiate an SMBHB GWB from a cosmologically sourced one is…

Assessment of Hybrid RANS-LES and WALE Formulations for Wake and Resistance Prediction of the BB2 Submarine
Noh Zainal Abidin (GeM), Frederic Grondin (GeM), Pol Muller (Naval Expert), Jean-Fran\c{c}ois Sigrist (Naval Expert)
https://arxiv.org/abs/2510.03383

Assessment of Hybrid RANS-LES and WALE Formulations for Wake and Resistance Prediction of the BB2 Submarine
Submarine hydrodynamics presents unique challenges in accurately predicting flow separation, wake structure, and resistance due to complex geometry and turbulent behaviour at high Reynolds (Re) numbers. Traditional Reynolds-Averaged Navier-Stokes (RANS) approaches are often limited in resolving unsteady flow structures and turbulence in the near and far regions. To address these limitations, hybrid RANS-LES models such as Detached Eddy Simulation (DES) and Large Eddy Simulation (LES) offer impr…

A Second Look at Charlie Kirk: The Sugar-Coated Voice of MAGA - WhoWhatWhy
https://whowhatwhy.org/politics/us-politics/a-second-look-at-charlie-kirk-the-sugar-coated-voice-of-maga/

Finding Phones Fast: Low-Latency and Scalable Monitoring of Cellular Communications in Sensitive Areas
Martin Kotuliak, Simon Erni, Jakub Pol\'ak, Marc Roeschlin, Richard Baker, Ivan Martinovic, Srdjan \v{C}apkun
https://arxiv.org/abs/2509.25430

Finding Phones Fast: Low-Latency and Scalable Monitoring of Cellular Communications in Sensitive Areas
The widespread availability of cellular devices introduces new threat vectors that allow users or attackers to bypass security policies and physical barriers and bring unauthorized devices into sensitive areas. These threats can arise from user non-compliance or deliberate actions aimed at data exfiltration/infiltration via hidden devices, drones, etc. We identify a critical gap in this context: the absence of low-latency systems for high-quality and instantaneous monitoring of cellular transmi…

Off-Policy Reinforcement Learning with Anytime Safety Guarantees via Robust Safe Gradient Flow
Pol Mestres, Arnau Marzabal, Jorge Cort\'es
https://arxiv.org/abs/2510.01492 h…

Off-Policy Reinforcement Learning with Anytime Safety Guarantees via Robust Safe Gradient Flow
This paper considers the problem of solving constrained reinforcement learning (RL) problems with anytime guarantees, meaning that the algorithmic solution must yield a constraint-satisfying policy at every iteration of its evolution. Our design is based on a discretization of the Robust Safe Gradient Flow (RSGF), a continuous-time dynamics for anytime constrained optimization whose forward invariance and stability properties we formally characterize. The proposed strategy, termed RSGF-RL, is a…

LST-1 observations of GRB 221009A: Insights into its late-time VHE afterglow
Arnau Aguasca-Cabot (for the CTAO-LST Project), Susumu Inoue (for the CTAO-LST Project), Monica Seglar-Arroyo (for the CTAO-LST Project), Kenta Terauchi (for the CTAO-LST Project), Pol Bordas (for the CTAO-LST Project), Marc Rib\'o (for the CTAO-LST Project)
https://

LST-1 observations of GRB 221009A: Insights into its late-time VHE afterglow
Gamma-ray bursts (GRBs) originate from explosions at cosmological distances, generating collimated jets. GRB 221009A, exploded on 9 October 2022, has been established as the brightest GRB to date. Its bright and long emission was extensively followed up from radio to gamma rays. LHAASO firmly detected the onset of the afterglow emission at energies up to $\sim$13 TeV within about an hour after the burst, starting just a few minutes after the trigger. While this VHE emission component can be acc…

In case you missed it:
As UK politics turns both right and left, how do we get degrowth onto the agenda?
"Neither the embryonic Your Party, nor even the Green Party, provide evidence that their approach, extant or emerging, at this point in time, is adequate to the scale of the existential crisis facing humanity. This could change, and it should be a focus of the small degrowth movement in these islands "

As UK politics turns both right and left, how do we get degrowth onto the agenda?
By Mark H Burton In the series, Prospects for Degrowth The last few weeks have seen two opposing developments in British politics, both in the context of the Starmer Labour government and its failu…

At first I thought „Oh no, I need to peel off laptop stickers!“, but then I remembered that I won’t travel to the United States anytime soon (for large values of “soon”).
https://edition.cnn.com/2025/09/17/politics/antifa-terrorist-designation-trump

Trump says he’s designating Antifa as a terrorist organization
President Donald Trump said he is designating the far-left anti-fascism movement Antifa as a terrorist organization, announcing the move on his Truth Social platform in the early hours of Thursday morning UK time.

Comprehensive Numerical Hydrodynamic Analysis of Submarine in a Straight Course Simulation Using Wall-Resolved RANS Models
Noh Zainal Abidin (GeM), Frederic Grondin (GeM), Pol Muller (Naval Expert), Jean-Fran\c{c}ois Sigrist (Naval Expert)
https://arxiv.org/abs/2510.04911

Comprehensive Numerical Hydrodynamic Analysis of Submarine in a Straight Course Simulation Using Wall-Resolved RANS Models
This research explores several critical factors affecting CFD-based prediction accuracy of submarine hydrodynamics and builds upon previous work on preliminary mesh and solver benchmarking. A scaled submarine model is analyzed numerically using the Reynolds-Averaged Navier-Stokes (RANS) turbulence model at a Reynold number (Re) of 3.6x106 with wall-resolved meshes targeting y+ <5. Based on prior work using a 13x106 cells mesh generated with SnappyHexMesh, a mesh convergence study was performed …

Church members flee as federal agents arrive at east Charlotte place of worship (Nick Sullivan/The Charlotte Observer)
https://www.charlotteobserver.com/news/politics-government/article312932422.html
http://www.memeorandum.com/251115/p68#a251115p68

Mitigating Language Barriers in Education: Developing Multilingual Digital Learning Materials with Machine Translation
Lucie Pol\'akov\'a, Martin Popel, V\v{e}ra Kloudov\'a, Michal Nov\'ak, Mariia Anisimova, Ji\v{r}\'i Balhar
https://arxiv.org/abs/2509.09473

Mitigating Language Barriers in Education: Developing Multilingual Digital Learning Materials with Machine Translation
The EdUKate project combines digital education, linguistics, translation studies, and machine translation to develop multilingual learning materials for Czech primary and secondary schools. Launched through collaboration between a major Czech academic institution and the country's largest educational publisher, the project is aimed at translating up to 9,000 multimodal interactive exercises from Czech into Ukrainian, English, and German for an educational web portal. It emphasizes the developme…

#Österreich:
Mit den heute angekündigten ersten "Deregulierungsmaßnahmen" werden übrigens Photovoltaikanlagen und E-Ladestationen für Betriebe vollständig genehmigungsfrei.
#AtPol #AutPol #Pol_At #Elektromobilität #Photovoltaik #ELadestationen

Der Verfassungssprecher (!) der ÖVP, Wolfgang Gerstl, soll als Mitglied einer Bezirkswahlbehörde verbotenerweise die Kontaktdaten von fünf Privatpersonen verwendet haben, um sie zu kontaktieren und ihnen vorzuwerfen, eine andere Liste als die ÖVP zu unterstützen.
Ziel sei es laut StA Wien gewesen, das Antreten einer Liste zu verhindern.
#Österreich #Gerstl #ÖVP #AtPol #AutPol #pol_at