Tootfinder

Heute geht es zu den #BatteryDays in Münster. Die Experten sprechen darüber, wie sich eine Batteriezellenfertigung in Deutschland aufbauen lässt. Besonders der Boomende Markt der großen Energiespeicher bietet da viel Potenzial.
Was denkt ihr, welcher in Europa gut verfügbare Grundstoff hat dabei die besten Aussichten?
(Lösung im folgenden Post)

Computational Resolution of Hadamard Product Factorization for $4 \times 4$ Matrices
Igor Rivin
https://arxiv.org/abs/2508.14901 https://arxiv.org/pdf/2508…

Computational Resolution of Hadamard Product Factorization for $4 \times 4$ Matrices
We computationally resolve an open problem concerning the expressibility of $4 \times 4$ full-rank matrices as Hadamard products of two rank-2 matrices. Through exhaustive search over $\mathbb{F}_2$, we identify 5,304 counterexamples among the 20,160 full-rank binary matrices (26.3\%). We verify that these counterexamples remain valid over $\mathbb{Z}$ through sign enumeration and provide strong numerical evidence for their validity over $\mathbb{R}$. Remarkably, our analysis reveals that mat…

Open, Reproducible and Trustworthy Robot-Based Experiments with Virtual Labs and Digital-Twin-Based Execution Tracing
Benjamin Alt, Mareike Picklum, Sorin Arion, Franklin Kenghagho Kenfack, Michael Beetz
https://arxiv.org/abs/2508.11406

Open, Reproducible and Trustworthy Robot-Based Experiments with Virtual Labs and Digital-Twin-Based Execution Tracing
We envision a future in which autonomous robots conduct scientific experiments in ways that are not only precise and repeatable, but also open, trustworthy, and transparent. To realize this vision, we present two key contributions: a semantic execution tracing framework that logs sensor data together with semantically annotated robot belief states, ensuring that automated experimentation is transparent and replicable; and the AICOR Virtual Research Building (VRB), a cloud-based platform for sha…

”’Ordet »inte« har fallit bort, så att det stod att en patient var suicidal’, när jag hade gjort den motsatta bedömningen. ’Verktyget klarar inte heller av läkemedelsnamn. Kvetiapin blir ketamin. Det blir patientfarligt’, säger han.”

Varför i helvete är det just vården som ska vara testmark för experimentell, ofärdig teknik, där människors liv står på spel? Varför blir inköparna i hälso- och sjukvård pålurade sån’t här om och om igen? Och igen.

DPCheatSheet: Using Worked and Erroneous LLM-usage Examples to Scaffold Differential Privacy Implementation
Shao-Yu Chu, Yuhe Tian, Yu-Xiang Wang, Haojian Jin
https://arxiv.org/abs/2509.12590

DPCheatSheet: Using Worked and Erroneous LLM-usage Examples to Scaffold Differential Privacy Implementation
This paper explores how programmers without specialized expertise in differential privacy (DP) (i.e., novices) can leverage LLMs to implement DP programs with minimal training. We first conducted a need-finding study with 6 novices and 3 experts to understand how they utilize LLMs in DP implementation. While DP experts can implement correct DP analyses through a few prompts, novices struggle to articulate their requirements in prompts and lack the skills to verify the correctness of the generat…

Today's Experiments Suffice to Verify the Quantum Essence of Gravity
Martin Pl\'avala
https://arxiv.org/abs/2508.03052 https://arxiv.org/pdf/2508.0…

Today's Experiments Suffice to Verify the Quantum Essence of Gravity
The gravity-mediated entanglement experiments employ concepts from quantum information to argue that if gravitational interaction creates entanglement between two systems, then gravity cannot be described by a classical system. However, the proposed experiments remain beyond out current technological capability, with optimistic projections placing the experiment outside of short-term future. Here we leverage quantum information techniques to argue that current matter-wave interferometers are su…

Virasoro OPE and Conformal Blocks from the Inverse Shapovalov Form
Jean-Fran\c{c}ois Fortin, Lorenzo Quintavalle, Witold Skiba
https://arxiv.org/abs/2509.09765 https://

Virasoro OPE and Conformal Blocks from the Inverse Shapovalov Form
We derive expressions for the Virasoro OPE and four-point conformal blocks on the sphere via the resolution of identity recently determined in [Phys. Rev. D 111, 085010 (2025), arXiv:2409.12224]. Even though the resolution of the identity depends on Virasoro singular vectors, our expression for the blocks does not depend on their precise form, but just on their well-known conformal weights. We verify that our expression is compatible with -- but differs from -- Zamolodchikov's $h$-recursion rel…

Litauen: Bislang keine Zwischenfälle während "Sapad"-Manöver
Litauen hat bislang keine Zwischenfälle an seinen Grenzen während des russisch-belarusischen Manövers "Sapad" registriert. "Das erste Wochenende der aktiven Phase der 'Sapad'-Übungen verlief relativ ruhig, sowohl was die illegale Migration als auch andere Vorfälle an der Staatsgrenze betrifft. Grenzschutzbeamte registrierten keine ungewöhn…
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Manöver von Russland und Belarus: Eine versteckte Mobilmachung?
Nahe der polnischen Grenze beginnen etwa 12.000 Soldaten aus Belarus und Russland mit einer Militärübung. Experten sehen darin eine Provokation in Richtung Westen - und die Gefahr einer versteckten Mobilmachung.

Varför har HBO en bild på Carl Bildts cumface i sin reklam 😂

Achieving Meaningful Collaboration: Worker-centered Design of a Physical Human-Robot Collaborative Blending Task
Nicky Mol, Luka Peternel, Alessandro Ianniello, Denis Zatyagov, Auke Nachenius, Stephan Balvert, J. Micah Prendergast, Sara Muscolo, Olger Siebinga, Eva Verhoef, Deborah Forster, David A. Abbink
https://arxiv.org/abs/2510.12340

Achieving Meaningful Collaboration: Worker-centered Design of a Physical Human-Robot Collaborative Blending Task
The use of robots in industrial settings continues to grow, driven by the need to address complex societal challenges such as labor shortages, aging populations, and ever-increasing production demands. In this abstract, we advocate for (and demonstrate) a transdisciplinary approach when considering robotics in the workplace. Transdisciplinarity emphasizes the integration of academic research with pragmatic expertise and embodied experiential knowledge, that prioritize values such as worker well…