Tootfinder

Sichere Akkus: Lithium-Metall-Batterien mit integriertem Flammschutzmittel
Lithium-Metall-Batterien sind energiereich, können jedoch bei Überhitzung schnell in Brand geraten. Ein Polymer soll das verhindern.

ChatGPT Agent uses a virtual browser to do tasks such as filling online forms and calling public APIs, and generates downloadable PowerPoint and Excel files (Reece Rogers/Wired)
https://www.wired.com/story/openai-chatgpt-agent-launch/

OpenAI’s New ChatGPT Agent Tries to Do It All
It’s a PowerPoint generator! It’s a date-night planner! It’s … another agent from OpenAI.

Approximate polymorphisms of predicates
Yaroslav Alekseev, Yuval Filmus
https://arxiv.org/abs/2506.12155 https://arxiv.org/pdf/2506.1…

Approximate polymorphisms of predicates
A generalized polymorphism of a predicate $P \subseteq \{0,1\}^m$ is a tuple of functions $f_1,\dots,f_m\colon \{0,1\}^n \to \{0,1\}$ satisfying the following property: If $x^{(1)},\dots,x^{(m)} \in \{0,1\}^n$ are such that $(x^{(1)}_i,\dots,x^{(m)}_i) \in P$ for all $i$, then also $(f_1(x^{(1)}),\dots,f_m(x^{(m)})) \in P$. We show that if $f_1,\dots,f_m$ satisfy this property for most $x^{(1)},\dots,x^{(m)}$ (as measured with respect to an arbitrary full support distribution $μ$ on $P$), th…

Following the "Geo-Erlebnis-Tag" during the weekend, preceding the Geo4Göttingen conference, the Geo4Change | Earth, Life, Climate, Resources, Materials | main program will start with plenary sessions for registered conference participants today.
https://geo4goettingen2025.de/
The full pro…

Space-filling efficiency and optical properties of hemoglycin
Julie E M McGeoch, Malcolm W McGeoch
https://arxiv.org/abs/2507.10612 https://

Space-filling efficiency and optical properties of hemoglycin
The empty, extensive low-density lattice topology of hemoglycin is examined to understand how in space, and possibly as early as 800M years into cosmic time a rod-like polymer of glycine and iron came into dominance. A central question to be answered is whether the hemoglycin rod lattice with diamond 2H symmetry represents the most efficient covering of space by a regular arrangement of identical rods. Starting from the tetrahedral symmetry of every hemoglycin lattice vertex we find that the re…

Rethinking cryptophane A for methane gas sensing: cross sensitivity to N2 and CO2 at ambient conditions
Sebasti\'an Alberti, Thierry Brotin, Jana J\'agersk\'a
https://arxiv.org/abs/2507.10558

Rethinking cryptophane A for methane gas sensing: cross sensitivity to N2 and CO2 at ambient conditions
Since the affinity of Cryptophane-A for methane was first reported in 1993, cryptophane-doped polymer films have been extensively studied as enrichment cladding layers in plasmonic, fiber-optic, and integrated waveguide-based optical sensors. While the use of cryptophane-doped layers has improved methane sensitivity compared to undoped claddings, controversy has grown over the years regarding their claimed selectivity and practical applicability. Key questions remain unresolved, including the e…

Active Learning and Explainable AI for Multi-Objective Optimization of Spin Coated Polymers
Brendan Young, Brendan Alvey, Andreas Werbrouck, Will Murphy, James Keller, Mattias J. Young, Matthew Maschmann
https://arxiv.org/abs/2509.08988

Active Learning and Explainable AI for Multi-Objective Optimization of Spin Coated Polymers
Spin coating polymer thin films to achieve specific mechanical properties is inherently a multi-objective optimization problem. We present a framework that integrates an active Pareto front learning algorithm (PyePAL) with visualization and explainable AI techniques to optimize processing parameters. PyePAL uses Gaussian process models to predict objective values (hardness and elasticity) from the design variables (spin speed, dilution, and polymer mixture), guiding the adaptive selection of sa…

Car culture at its absolute worst meets an unjust legal system. Parents lose a son and are then convicted of a felony because they let him walk across the street. Gift link https://www.nytimes.com/2025/08/06/opinion

Opinion | They Let Their Children Cross the Street and Now They’re Felons
They went to jail when their boy was killed. Why don’t road planners bear some guilt?

Geometry-Dependent Adhesion in Transparent, Monodomain Liquid Crystal Elastomers
Aidan Street, Devesh Mistry, Johan Mattsson, Helen F. Gleeson
https://arxiv.org/abs/2507.07639

Geometry-Dependent Adhesion in Transparent, Monodomain Liquid Crystal Elastomers
Elastomeric pressure-sensitive adhesives (PSAs) form adhesive bonds under light pressure. Liquid crystal elastomers (LCEs) are exciting PSA candidates as they can impart both anisotropy and temperature-dependence to adhesion, but the full potential of their anisotropic adhesion is unexplored. Here, identical side-chain LCEs, produced as transparent isotropic or nematic films are investigated; the latter aligned in homeotropic or planar geometries. Their room-temperature adhesion, determined thr…

Car culture at its absolute worst meets an unjust legal system. Parents lose a son and are then convicted of a felony because they let him walk across the street. Gift link https://www.nytimes.com/2025/08/06/opinion

Opinion | They Let Their Children Cross the Street and Now They’re Felons
They went to jail when their boy was killed. Why don’t road planners bear some guilt?