Tootfinder

Further Modifying the Reciprocal Tariff Rates (President Donald J. Trump/The White House)
https://www.whitehouse.gov/presidential-actions/2025/07/further-modifying-the-reciprocal-tariff-rates/
http://www.memeorandum.com/250731/p138#a250731p138

Original post: https://bsky.app/profile/did:plc:codxbnqvzymrsh3n5yfbcfa6/post/3m25tbmzgak22

Markov Decision Processing Networks
Sanidhay Bhambay, Thirupathaiah Vasantam, Neil Walton
https://arxiv.org/abs/2509.24541 https://arxiv.org/pdf/2509.24541…

Markov Decision Processing Networks
We introduce Markov Decision Processing Networks (MDPNs) as a multiclass queueing network model where service is a controlled, finite-state Markov process. The model exhibits a decision-dependent service process where actions taken influence future service availability. Viewed as a two-sided queueing model, this captures settings such as assemble-to-order systems, ride-hailing platforms, cross-skilled call centers, and quantum switches. We first characterize the capacity region of MDPNs. Unli…

how the fuck does FreeCAD not have fucking midpoints on fucking lines!?

Didn't have a lot of time today to play around with Cosmic beta on Nix (cosmic-saigon).
Big improvement already:keyboard shortcuts (when you are adding or modifying) are now triggered by typing the actual key combo. For me, as a keyboard shortcuts junkie that's great!
#cosmic

On the Complexity of the Succinct State Local Hamiltonian Problem
Gabriel Waite, Karl Lin
https://arxiv.org/abs/2509.25821 https://arxiv.org/pdf/2509.25821…

On the Complexity of the Succinct State Local Hamiltonian Problem
We study the computational complexity of the Local Hamiltonian problem under the promise that its ground state is succinctly represented. We show that the Succinct State 3-Local Hamiltonian problem is (promise) MA-complete. Our proof proceeds by systematically characterising succinct quantum states and modifying the original MA-hardness reduction. In particular, we show that a broader class of succinct states suffices to capture the hardness of the problem, extending and strengthening prior res…

Self-organized adaptive branching in frangible matter
P. L. B. Fischer, J. Tauber, T. Koch, L. Mahadevan
https://arxiv.org/abs/2509.26101 https://arxiv.org…

Self-organized adaptive branching in frangible matter
Soft and frangible materials that remodel under flow can give rise to branched patterns shaped by material properties, boundary conditions, and the time scales of forcing. We present a general theoretical framework for emergent branching in these frangible (or threshold) materials that switch abruptly from resisting flow to permitting flow once local stresses exceed a threshold, relevant for ex- amples as varied as dielectric breakdown of insulators and the erosion of soft materials. Simulation…

Constraining inhomogeneous energy injection from annihilating dark matter and primordial black holes with 21-cm cosmology
Yitian Sun, Joshua W. Foster, Julian B. Mu\~noz
https://arxiv.org/abs/2509.22772

Constraining inhomogeneous energy injection from annihilating dark matter and primordial black holes with 21-cm cosmology
The cosmic dawn 21-cm signal is a highly sensitive probe of any process which injects energy into the intergalactic medium, enabling novel searches for anomalous energy injection by through dark matter interactions. In addition to modifying the global 21-cm signal, these processes would leave distinct imprints on the frequency-resolved 21-cm power spectrum with a morphology jointly set by the time- and spatial-dependence of energy emission and absorption. In this work, we extend the DM21cm code…

Wafer-Level Prototyping Tools for CMOS Bioelectronic Sensors
Advait Madhavan, Ruohong Shi, Alokik Kanwal, Glenn Holland, Jacob M. Majikes, Paul N. Patrone, Anthony J. Kearsley, Arvind Balijepalli
https://arxiv.org/abs/2509.24075

Wafer-Level Prototyping Tools for CMOS Bioelectronic Sensors
Integrating biology with complementary metal-oxide-semiconductor (CMOS) sensors can enable highly parallel measurements with minimal parasitic effects, significantly enhancing sensitivity. However, realizing this potential often requires overcoming substantial barriers related to design, fabrication, and heterogeneous integration. In this context, we present a comprehensive suite of tools and methods designed for wafer-scale biosensor prototyping that is sensitive, highly parallelizable, and ma…

🇺🇦 #NowPlaying on #BBC6Music's #6MusicArtistInResidence
Akira Yamaoka:
🎵 White Noiz
#AkiraYamaoka
https://muddybends.bandcamp.com/track/akira-yamaoka-white-noiz-muddy-bends-remix
https://open.spotify.com/track/3JjXYP1XVbcrFYwgbFsPCZ