Tootfinder

The Freedom Flotilla „Madleen” is projected to arrive in just a few hours at a coast in Gaza. If anything happens to @… or the other activists, the international community will never forgive the current Israeli government for it.
I wish and pray for your best, keep being the voice of our generation…

Freiheit für Greta Thunberg, Yasemin Acar und alle Aktivist*innen der Freedom Flotilla - Online-Petition
Humanitäre Hilfe ist kein Verbrechen! Am 1. Juni 2025 wurde das zivile Hilfsschiff Madleen der Freedom Flotilla Coalition auf dem Weg nach Gaza in internationalen Gewässern gewaltsam von der israelischen Armee gestoppt, geentert und seine Besatzung verschleppt. An Bord befanden sich ausschließlich unbewaffnete Freiwillige und dringend für den Gazastreifen benötigte humanitäre Hilfsgüter wie Babynahrung, Medizin und Prothesen für verletzte Kinder. Unter den Festgehaltenen ist neben Greta…

From NLVO to NAO: Reactive Robot Navigation using Velocity and Acceleration Obstacles
Asher Stern, Zvi Shiller
https://arxiv.org/abs/2506.06255 https://

From NLVO to NAO: Reactive Robot Navigation using Velocity and Acceleration Obstacles
This paper introduces a novel approach for robot navigation in challenging dynamic environments. The proposed method builds upon the concept of Velocity Obstacles (VO) that was later extended to Nonlinear Velocity Obstacles (NLVO) to account for obstacles moving along nonlinear trajectories. The NLVO is extended in this paper to Acceleration Obstacles (AO) and Nonlinear Acceleration Obstacles (NAO) that account for velocity and acceleration constraints. Multi-robot navigation is achieved by usi…

ROSGuard: A Bandwidth Regulation Mechanism for ROS2-based Applications
Jon Altonaga Puente, Enrico Mezzetti, Irune Agirre Troncoso, Jaume Abella Ferrer, Francisco J. Cazorla Almeida
https://arxiv.org/abs/2506.04640

ROSGuard: A Bandwidth Regulation Mechanism for ROS2-based Applications
Multicore timing interference, arising when multiple requests contend for the same shared hardware resources, is a primary concern for timing verification and validation of time-critical applications. Bandwidth control and regulation approaches have been proposed in the literature as an effective method to monitor and limit the impact of timing interference at run time. These approaches seek for fine-grained control of the bandwidth consumption (at the microsecond level) to meet stringent timin…

ONLINE WORKSHOP> Navigating Indra’s Net: Digital Approaches to Text Reuse-based Inter-textuality in Pre-Modern East Asian Texts
https://ift.tt/ajGgrIY
When did aliens become a problem? The Mediterranean Association for Marine Biology and Oceanology in…
via Input 4 RELCFP

Performance of MAGIC stellar intensity interferometer and expansion to MAGIC CTAO-LST1 stellar intensity interferometer
Alejo Cifuentes, V. A. Acciari, F. Barnes, G. Chon, E. Colombo, J. Cortina, C. Delgado, C. D\'iaz, M. Fiori, D. Fink, T. Hassan, I. Jim\'enez Mart\'inez, I. Jorge, D. Kerszberg, E. Lyard, G. Mart\'inez, R. Mirzoyan, M. Polo, N. Produit, J. J. Rodr\'iguez-V\'azquez, P. Saha, T. Schweizer, D. Strom, R. Walter, C. W. Wunderlich, MAGIC Collaborat…

Performance of MAGIC stellar intensity interferometer and expansion to MAGIC + CTAO-LST1 stellar intensity interferometer
A new generation of optical intensity interferometers are emerging in recent years taking advantage of the existing infrastructure of Imaging Atmospheric Cherenkov Telescopes (IACTs). The MAGIC SII (Stellar Intensity Interferometer) in La Palma, Spain, has been operating since its first successful measurements in 2019 and its current design allows it to operate regularly. The current setup is ready to follow up on bright optical transients, as changing from regular gamma-ray observations to SII…

Fresnel reflection coefficients in the Fourier domain for a planar surface in uniform motion parallel to its interface
St\'ephane Azar, Sebastian Golat, Francisco J. Rodr\'iguez-Fortu\~no
https://arxiv.org/abs/2506.04417

Fresnel reflection coefficients in the Fourier domain for a planar surface in uniform motion parallel to its interface
The optical reflection coefficient of a dielectric medium moving uniformly in the plane spanned by its surface is rigorously calculated using classical electrodynamics and special relativity, and expressed in the Fourier domain, as a function of the incident frequency and wavevector, valid in both the far- and near-field regimes. It is found that cross-polarisation appears as a consequence of the motion, except when it is directed along the plane of incidence. As an example, using a Drude model…

Interesting piece on the #Arctic #SeaIce and it's (improving) representation in global climate models by Gavin Schmidt over on @realclimate, I'm not entirely sure all of the improvement is for the right reasons, there are probably compensating biases, it would be interesting to see if the models get the regional signal correct in different parts of the Arctic, but overall I agree with this piece, there have been some big steps forward in global models, the regional level is often not very well represented though.
https://www.realclimate.org/index.php/archives/2025/05/predicted-arctic-sea-ice-trends-over-time/

Parity violation in photon quasinormal modes of black holes
Sugumi Kanno, Jiro Soda, Akira Taniguchi
https://arxiv.org/abs/2506.04149 https://

Parity violation in photon quasinormal modes of black holes
Given that black holes are ubiquitous in the universe and axion-like scalar fields are potential candidates for dark energy and/or dark matter, it is natural to consider cosmological black holes endowed with axion hair. We investigate the photon quasinormal modes of a Schwarzschild black hole with axion hair where the electromagnetic field is coupled to the axion field via a Chern-Simons interaction. We derive the master equations for the electromagnetic field as a set of coupled equations for …

Intrinsic Resolution of Organic Scintillators
O. Smirnov
https://arxiv.org/abs/2506.03208 https://arxiv.org/pdf/2506.03208

Intrinsic Resolution of Organic Scintillators
Fluctuations in photon production within scintillators contribute to the overall energy resolution of scintillation detectors. While typically negligible, this contribution - known as intrinsic resolution (IR) - presents significant challenges for both experimental measurement and Monte Carlo simulation. Using the phenomenological model proposed in~[1], we interpreted multiple datasets of IR measurements in organic scintillators. Although our results generally agree with the IR dataset examined…

fftvis: A Non-Uniform Fast Fourier Transform Based Interferometric Visibility Simulator
Tyler A. Cox, Steven G. Murray, Aaron R. Parsons, Joshua S. Dillon, Kartik Mandar, Zachary E. Martinot, Robert Pascua, Piyanat Kittiwisit, James E. Aguirre
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