Tootfinder

Everything You Need to Know About CS Education: Open Results from a Survey of More Than 18,000 Participants
Katsiaryna Dzialets, Aleksandra Makeeva, Ilya Vlasov, Anna Potriasaeva, Aleksei Rostovskii, Yaroslav Golubev, Anastasiia Birillo
https://arxiv.org/abs/2508.05286

Everything You Need to Know About CS Education: Open Results from a Survey of More Than 18,000 Participants
Computer science education is a dynamic field with many aspects that influence the learner's path. While these aspects are usually studied in depth separately, it is also important to carry out broader large-scale studies that touch on many topics, because they allow us to put different results into each other's perspective. Past large-scale surveys have provided valuable insights, however, the emergence of new trends (e.g., AI), new learning formats (e.g., in-IDE learning), and the increasing …

Travis Kelce on Chiefs' Super Bowl LIX loss: 'I've thrown that thing in the trash' https://www.nfl.com/news/travis-kelce-chiefs-super-bowl-lix-loss-ive-thrown-that-thing-in-trash

Slow graph bootstrap percolation III: Chain constructions
David Fabian, Patrick Morris, Tibor Szab\'o
https://arxiv.org/abs/2508.03835 https://arxiv.or…

Slow graph bootstrap percolation III: Chain constructions
For graphs $H$, we study the extremal function $M_H(n)$ which is the maximum running time (until stabilisation) of an $H$-bootstrap percolation process on $n$ vertices. Building on previous work in the clique case $H=K_k$, we develop a general framework of chain constructions. We demonstrate the flexibility of this framework by applying several variations of the method to give lower bounds on $M_H(n)$ for a wide variety of different graphs $H$ including dense graphs, random graphs and complete …

Analysis and simulations of binary black hole merger spins -- the question of spin-axis tossing at black hole formation
Hans C. G. Larsen, Casper C. Pedersen, Thomas M. Tauris, Ali Sepas, Claudia Larsen, Christophe A. N. Biscio
https://arxiv.org/abs/2508.03809

Analysis and simulations of binary black hole merger spins -- the question of spin-axis tossing at black hole formation
The origin of binary black hole (BH) mergers remains a topic of active debate, with effective spins (chi_eff) measured by the LIGO-Virgo-KAGRA (LVK) Collaboration providing crucial insights. In this study, our objective is to investigate the empirical chi_eff distribution (and constrain individual spin components) of binary BH mergers and compare them with extensive simulations, assuming that they originate purely from isolated binaries or a mixture of formation channels. We explore scenarios u…

Prospects of a New $L_5$ Trojan Flyby Target for the Lucy Mission
Luis E. Salazar Manzano, David W. Gerdes, Kevin J. Napier, Hsing Wen Lin, Fred C. Adams, Tessa Frincke, Simone Marchi, Keith S. Noll, John Spencer
https://arxiv.org/abs/2508.03687

Prospects of a New $L_5$ Trojan Flyby Target for the Lucy Mission
NASA's Lucy spacecraft is en route to conduct the first close encounter with Jupiter's Trojans. While most scheduled flybys lie in the $L_4$ cloud, the only $L_5$ target is the Patroclus-Menoetius binary. Since each flyby offers unique insights into target and population properties unattainable from Earth, we examine the feasibility of including an additional, yet unknown, $L_5$ target while minimizing the impact on Lucy's primary mission. We use the background $L_5$ Trojans brighter than the c…

Mechanical characterization of pharmaceutical powders and correlation with their behavior during grinding
Laura Baraldi, Davide De Angelis, Roberto Bosi, Roberto Pennini, Irene Bassanetti, Andrea Benassi, Guido Enrico Bellazzi
https://arxiv.org/abs/2508.02767

Mechanical characterization of pharmaceutical powders and correlation with their behavior during grinding
Controlling the size of powder particles is pivotal in the design of many pharmaceutical forms and the related manufacturing processes and plants. One of the most common techniques for particle size reduction in process industry is powder milling, whose efficiency relates to the mechanical properties of powder particles themselves. In this work, we first characterize the elastic and plastic response of different pharmaceutical powders by measuring their Young modulus, the hardness and the britt…

🌍 The climate crisis demands urgent action. But which actions are best?
Decision makers face tough trade-offs:
Policy A lowers emissions at home but increases reliance on imports.
Policy B cuts emissions long-term but raises unemployment short-term.
Policy C boosts jobs now but increases emissions in the near term.
None of these choices are simple. A policy that looks good locally may increase global emissions, or its effects may depend on what other countries d…

Tracking Electron, Proton, and Solvent Motion in Proton-Coupled Electron Transfer with Ultrafast X-rays
Abdullah Kahraman, Michael Sachs, Soumen Ghosh, Benjamin I. Poulter, Estefan\'ia Sucre-Rosales, Elizabeth S. Ryland, Douglas Garratt, Sumana L. Raj, Natalia Powers-Riggs, Subhradip Kundu, Christina Y. Hampton, David J. Hoffman, Giacomo Coslovich, Georgi L. Dakovski, Patrick L. Kramer, Matthieu Chollet, Roberto A. Mori, Tim B. van Driel, Sang-Jun Lee, Kristjan Kunnus, Amy A. Cordo…

Tracking Electron, Proton, and Solvent Motion in Proton-Coupled Electron Transfer with Ultrafast X-rays
Proton-coupled electron transfer (PCET) is foundational to catalysis, bioenergetics, and energy conversion, yet capturing and disentangling the coupled motions of electrons, protons, and solvent has remained a major experimental challenge. We combine femtosecond optical spectroscopy, site-specific ultrafast soft X-ray absorption spectroscopy, and time-resolved X-ray scattering with advanced calculations to disentangle the elementary steps of PCET in solution. Using a ruthenium polypyridyl model…

Putin is 'obstacle to peace,' retired US General Petraeus says: https://benborges.xyz/2025/08/25/putin-is-obstacle-to-peace.html

Extended Weak Order for the Rank 3 Universal Coxeter Group
Grant Barkley, Colin Defant, Patricia Hersh, Jon McCammond, Thomas McConville, David E Speyer
https://arxiv.org/abs/2509.00871

Extended Weak Order for the Rank 3 Universal Coxeter Group
The weak order is a classical poset structure on a Coxeter group; it is a lattice when the group is finite but merely a meet-semilattice when the group is infinite. Motivated by problems in Kazhdan--Lusztig theory, Matthew Dyer introduced the extended weak order, a poset that contains a copy of the weak order as an order ideal, and he conjectured that the extended weak order for any Coxeter group is a lattice. We prove Dyer's conjecture for the rank 3 universal Coxeter group. This is the first …