Tootfinder

Simultaneous Six-way Observations from the Navy Precision Optical Interferometer
Ellyn K. Baines, Solvay Blomquist, James H. Clark III, Jim Gorney, Erin Maier, Jason Sanborn, Henrique R. Schmitt, Jordan M. Stone, Gerard T. van Belle, Kaspar von Braun
https://arxiv.org/abs/2506.01720

Simultaneous Six-way Observations from the Navy Precision Optical Interferometer
We measured the angular diameters of six stars using the 6-element observing mode of the Navy Precision Optical Interferometer (NPOI) for the first time since the early 2000s. Four of the diameters ranged from 1.2 mas to 1.9 mas, while the two others were much smaller at approximately 0.5 mas to 0.7 mas, which are the two smallest angular diameters measured to date with the NPOI. There is a larger spread in the measurements than data obtained with 3- or 4- or 5-element modes, which can be attri…

Investigating Timing-Based Information Leakage in Data Flow-Driven Real-Time Systems
Mohammad Fakhruddin Babar, Zain A. H. Hammadeh, Mohammad Hamad, Monowar Hasan
https://arxiv.org/abs/2506.01991

Investigating Timing-Based Information Leakage in Data Flow-Driven Real-Time Systems
Leaking information about the execution behavior of critical real-time tasks may lead to serious consequences, including violations of temporal constraints and even severe failures. We study information leakage for a special class of real-time tasks that have two execution modes, namely, typical execution (which invokes the majority of times) and critical execution (to tackle exceptional conditions). The data flow-driven applications inherit such a multimode execution model. In this paper, we i…

Huge anisotropic magneto-thermal switching in high-purity polycrystalline compensated metals
Poonam Rani, Yuto Watanabe, Takuma Shiga, Yuya Sakuraba, Hikaru Takeda, Minoru Yamashita, Ken-ichi Uchida, Aichi Yamashita, Yoshikazu Mizuguchi
https://arxiv.org/abs/2506.00427

Huge anisotropic magneto-thermal switching in high-purity polycrystalline compensated metals
Magneto-thermal transport is a promising physical property for thermal management applications. Magneto-thermal switching enables active control of heat flows, and a high switching ratio is desirable for improving performance. Here, we report on the observation of a huge magneto-thermal switching (MTS) effect in high-purity (5N) Pb polycrystalline wires, where magnetic fields perpendicular to the heat current direction are applied at low temperatures. At T = 3 K and B = 0.1 T, the measured ther…

Microtubule polymerization generates microtentacles important in circulating tumor cell invasion
Lucina Kainka, Reza Shaebani, Kathi Kaiser, Jonas Bosche, Ludger Santen, Franziska Lautenschl\"ager
https://arxiv.org/abs/2505.18301

Microtubule polymerization generates microtentacles important in circulating tumor cell invasion
Circulating tumor cells (CTCs) have crucial roles in the spread of tumors during metastasis. A decisive step is the extravasation of CTCs from the blood stream or lymph system, which depends on the ability of cells to attach to vessel walls. Recent work suggests that such adhesion is facilitated by microtubule (MT)-based membrane protrusions called microtentacles (McTNs). However, how McTNs facilitate such adhesion and how MTs can generate protrusions in CTCs remain unclear. By combining fluore…

This https://arxiv.org/abs/2504.07446 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nli…

A mass conserved reaction-diffusion system reveals switching between coexisting polar and oscillatory cell motility states
Motile eukaryotic cells display distinct modes of migration that often occur within the same cell type. It remains unclear, however, whether transitions between the migratory modes require changes in external conditions, or whether the different modes are coexisting states that emerge from the underlying signaling network. Using a simplified mass-conserved reaction-diffusion model of small GTPase signaling with F-actin mediated feedback, we uncover a distinct bistable mechanism (involving gradi…

#AI slop has done the unthinkable and made #Rule34 scalable https://mastodon.social/@404mediaco/11

An Anarchist Approach to the Undergraduate Mathematics Curriculum
Asia Matthews, Vincent Bouchard
https://arxiv.org/abs/2505.18811 https://

An Anarchist Approach to the Undergraduate Mathematics Curriculum
Contemporary anarchism centers around three tenets: (1) a constant challenge of and resistance to all forms of domination, (2) so-called "prefigurative politics", in which all decisions are made in a manner that is consistent with a set of non-hierarchical values such as equality, decentralization and voluntary cooperation, (3) a focus on diversity and open-endedness (Gordon, 2008). Within this philosophy the notion of end goals becomes moot; progress, then, is measured by process, in which the…

We sounded the alarms about this when #DALLE and #ChatGPT were first unleashed, but not enough people cared. They just saw the shiny.
https://

Direct Estimation of Earthquake Source Properties from a Single CCTV Camera
Soumaya Latour, Mathias Lebihain, Harsha S. Bhat, C\'edric Twardzik, Quentin Bletery, Kenneth W. Hudnut, Fran\c{c}ois Passel\`egue
https://arxiv.org/abs/2505.15461

Direct Estimation of Earthquake Source Properties from a Single CCTV Camera
We present the first direct measurement of the slip-rate function during a natural coseismic rupture, recorded during the 28 March 2025, Mw 7.7 Mandalay earthquake (Myanmar). This measurement was made on a video footage of the surface rupture captured by a security camera located only meters away from the fault trace. Using direct image analysis, we measured the relative slip at each time step and deduced the slip rate. Our results show a local slip duration of 1.3 s, and that the surface slip …