Tootfinder

Obesity & diet
I wouldn't normally share a positive story about the new diet drugs, because I've seen someone get obsessed with them who was at a perfectly acceptable weight *by majority standards* (surprise: every weight is in fact perfectly acceptable by *objective* standards, because every "weight-associated" health risk is its own danger that should be assessed *in individuals*). I think two almost-contradictory things:
1. In a society shuddering under the burden of metastasized fatmisia, there's a very real danger in promoting the new diet drugs because lots of people who really don't need them will be psychologically bullied into using them and suffer from the cost and/or side effects.
2. For many individuals under the assault of our society's fatmisia, "just ignore it" is not a sufficient response, and also for specific people for whom decreasing their weight can address *specific* health risks/conditions that they *want* to address that way, these drugs can be a useful tool.
I know @… to be a trustworthy & considerate person, so I think it's responsible to share this:
#Fat #Diet #Obesity

An influential US medical journal
👉is rejecting a call from the secretary of the Department of Health and Human Services, Robert F Kennedy Jr,
to retract a large Danish study that found that aluminum ingredients in vaccines do not increase health risks for children,
the journal’s editor told Reuters.
⚠️ Kennedy has long promoted doubts about vaccines’ safety and efficacy,
and as health secretary has upended the federal government’s process for recommending immun…

Q&A with researcher Petter Törnberg on his pre-print study showing how social media's structural architecture creates problematic outcomes like echo chambers (Jennifer Ouellette/Ars Technica)
https://arstechnica.com/science/2025/08/study-social-medi…

Study: Social media probably can’t be fixed
“The [structural] mechanism producing these problematic outcomes is really robust and hard to resolve.”…

Magic Steady State Production: Non-Hermitian and Stochastic pathways
Pablo Martinez-Azcona, Matthieu Sarkis, Alexandre Tkatchenko, Aur\'elia Chenu
https://arxiv.org/abs/2507.08676

Magic Steady State Production: Non-Hermitian and Stochastic pathways
Universal quantum computers require states with both entanglement and non-stabilizerness, the latter property being commonly known as \textit{quantum magic}. Here, we introduce a protocol that prepares magic steady states by leveraging non-Hermitian dynamics, which, contrary to unitary dynamics, can host pure-state attractors. We investigate the dissipative qubit, in which we find the optimal parameters to prepare $|H\rangle$ and $|T\rangle$ states. Interestingly, this approach does n…

K-promotion on m-packed labelings of posets
Jamie Kimble (Michigan State University), Bruce E. Sagan (Michigan State University), Avery St. Dizier (Michigan State University)
https://arxiv.org/abs/2508.09305

K-promotion on m-packed labelings of posets
Schutzenberger's promotion operator, pro, is a fundamental map in dynamical algebraic combinatorics. At first, its action was mainly considered on standard Young tableaux. But pro was subsequently shown to have interesting properties when applied to natural labelings of other posets. Pechenik defined a K-theoretic version of promotion, pro_K, on m-packed labelings of tableaux. The operator pro was then extended to increasing labelings of other posets. The purpose of the current work is to show …

🦴 Scientists 3D-print part of human femur as strong as real bone
#manufacturing

Scientists 3D-print part of human femur as strong as real bone
A group of North Texas doctors and scientists printed part of a human femur—the longest and strongest bone in the body—that mimics the strength, flexibility and overall mechanics of a real femur. The findings were published in 2024 in a study in the Journal of Orthopaedic Research.

Macroscopic approaches to rotating neutron stars
A. A. Uleiev, A. G. Magner, S. P. Maydanyuk, A. Bonasera, H. Zheng, S. N. Fedotkin, A. I. Levon, U. V. Grygoriev, T. Depastas
https://arxiv.org/abs/2508.10717

Macroscopic approaches to rotating neutron stars
The macroscopic model for a neutron star (NS) as a perfect liquid drop at equilibrium is extended to rotating systems with a small frequency $ω$ within the effective-surface (ES) approach. The gradient surface terms of the NS energy density $\cal{E}(ρ)$ [Equation of State] are taken into account along with the volume ones at the leading order of the leptodermic parameter $a/R << 1$, where $a$ is the ES crust thickness and $R$ is the mean NS radius. The macroscopic NS angular momentum at small…

Beyond Random Sampling: Instance Quality-Based Data Partitioning via Item Response Theory
Lucas Cardoso, Vitor Santos, Jos\'e Ribeiro Filho, Ricardo Prud\^encio, Regiane Kawasaki, Ronnie Alves
https://arxiv.org/abs/2508.10628

Beyond Random Sampling: Instance Quality-Based Data Partitioning via Item Response Theory
Robust validation of Machine Learning (ML) models is essential, but traditional data partitioning approaches often ignore the intrinsic quality of each instance. This study proposes the use of Item Response Theory (IRT) parameters to characterize and guide the partitioning of datasets in the model validation stage. The impact of IRT-informed partitioning strategies on the performance of several ML models in four tabular datasets was evaluated. The results obtained demonstrate that IRT reveals a…

Oscillating bound states in waveguide-QED system with two giant atoms
F. J. L\"u, W. Z. Jia
https://arxiv.org/abs/2508.09338 https://arxiv.org/pdf/250…

Oscillating bound states in waveguide-QED system with two giant atoms
We study the bound states in the continuum (BIC) in a system of two identical two-level giant atoms coupled to a one-dimensional waveguide. By deriving general dark-state conditions, we clarify how coupling configurations and atomic parameters influence decay suppression. Through analysis of the long-time dynamical behaviors of atoms and bound photons, we carry out a detailed classification of bound states and explore the connections between these dynamical behaviors and the system's intrinsic …

Computational Study of the Spectral Properties of Isospectrally Patterned Lattices
Peter Schmelcher
https://arxiv.org/abs/2507.08351 https://

Computational Study of the Spectral Properties of Isospectrally Patterned Lattices
We perform a computational spectral analysis of different isospectrally patterned lattices (IPL). Having been introduced very recently, the lattice Hamiltonian of IPL consist of coupled cells which possess all the same set of eigenvalues. The latter is achieved in a controllable manner by parametrizing the cells via the phases of the involved orthogonal (or unitary) transformations. This opens the doorway of systematically designing lattice Hamiltonians with unique properties by choosing corres…