Tootfinder

Eu queria mais tempo livre, não apenas para ler mais e ver mais filmes e séries, mas também para ouvir mais podcasts. Eu passei minha juventude inteira perdendo 3 horas por dia em trajeto, imagina como minha vida teria sido melhor se naquela época jš existisse o podcast.

‘Green’ energy transition leaves a dirty trail in the Philippines’ nickel belt https://news.mongabay.com/2025/11/green-energy-transition-leaves-a-dirty-trail-in-the-philippines-nickel-belt/

‘Green’ energy transition leaves a dirty trail in the Philippines’ nickel belt
MINDANAO, Philippines — Communities living near mining operations in the southern Philippines’ Caraga region are feeling the toll of the global energy transition, with nickel mining driving deforestation and pollution, according to a recent report. Climate Rights International (CRI), the U.S.-based NGO behind the report, highlighted harms to the environment, local livelihoods and public health […]

been faffing around with 3d geometry in build123d recently, and failing to get the cad kernel to produce geometric objects that do what i want
so i sat down to do some algebra
it’s annoying that the usual material about conic sections explains how ellipses and parabolas and hyperbolas work … but not how to derive them given a cone and a plane
so i worked it out for my particular problem, and happily things cancelled out very nicely, making the result nice and simple
(…

Gotham fans are feeling good today
#gothamFC

PAC Learnability in the Presence of Performativity
Ivan Kirev, Lyuben Baltadzhiev, Nikola Konstantinov
https://arxiv.org/abs/2510.08335 https://arxiv.org/p…

PAC Learnability in the Presence of Performativity
Following the wide-spread adoption of machine learning models in real-world applications, the phenomenon of performativity, i.e. model-dependent shifts in the test distribution, becomes increasingly prevalent. Unfortunately, since models are usually trained solely based on samples from the original (unshifted) distribution, this performative shift may lead to decreased test-time performance. In this paper, we study the question of whether and when performative binary classification problems are…

Effects of strain on the stability of the metallic rutile and insulating M1 phases of vanadium dioxide
Peter Mlkvik, Lena Geistlich, Nicola A. Spaldin, Claude Ederer
https://arxiv.org/abs/2510.11480

Effects of strain on the stability of the metallic rutile and insulating M1 phases of vanadium dioxide
We present a systematic density-functional theory study of the effects of strain on the structural and electronic properties in vanadium dioxide (VO$_2$), with particular emphasis on its effect on the relative stability of the metallic rutile and the insulating monoclinic M1 phases. We consider various strain conditions that can be related to epitaxial strain present in VO$_2$ films grown on different lattice planes. Our calculations confirm the dominant role of $c$ axis strain, i.e., along the…

Obstructions for normally spanned sets of vertices
Nicola Lorenz, Max Pitz
https://arxiv.org/abs/2510.04367 https://arxiv.org/pdf/2510.04367

Obstructions for normally spanned sets of vertices
Halin conjectured that a graph has a normal spanning tree if and only if every minor of it has countable colouring number. This has recently been proven by the second author. In this paper, we strengthen this result by establishing the following local version of it: Given a prescribed set of vertices $U$ in a connected graph $G$, there is a normal tree in $G$ that includes $U$ if and only if every $U$-rooted minor of $G$ (i.e. a minor every branch set of which meets $U$) has countable colouri…

Consistent control of drying rates of solution thin films on wafer-sized substrates by dynamic air-knife drying with optimal trajectories
Simon Ternes
https://arxiv.org/abs/2510.00085

Consistent control of drying rates of solution thin films on wafer-sized substrates by dynamic air-knife drying with optimal trajectories
This work tackles the problem of achieving consistent drying rates of a solution film deposited on a $20\,\rm{cm}$-wide substrate ($\approx $ silicon-wafer size) that is driven under a narrow air flow ejected by a slot nozzle (or "air knife"). The main prerequisite of the work is that the drying rate of the solution film is highly decisive for a certain performance indicator of the deposited film at a particular, critical concentration $c_{\rm crit.}$. Empirically, this concentration can be ass…

The beta decay of Tz=-2 64Se and its descendants: the T=2 isobaric multiplet
P. Aguilera, F. Molina, B. Rubio, S. E. A. Orrigo, W. Gelletly, Y. Fujita, J. Agramunt, A. Algora, V. Guadilla, A. Montaner-Piz\'a, A. I. Morales, H. F. Arellano, P. Ascher, B. Blank, M. Gerbaux, J. Giovinazzo, T. Goigoux, S. Gr\'evy, T. Kurtukian Nieto, C. Magron, J. Chiba, D. Nishimura, S. Yagi, H. Oikawa, Y. Takei, D. S. Ahn, P. Doornenbal, N. Fukuda, N. Inabe, T. Kubo, S. Kubono, S. Nishimura, Y. S…

The beta decay of Tz=-2 64Se and its descendants: the T=2 isobaric multiplet
In this paper we present our results on the decay of 64Se. It is the heaviest Tz=-2 nucleus that both beta decays and has a stable mirror partner Tz=+2, thus allowing comparison with charge exchange reaction studies. The beta decays of 64Se and its descendants were studied at the RIKEN Nishina Center (Tokyo, Japan) following their production in the fragmentation of 78Kr on a beryllium target. Beta-delayed gamma-ray and particle radiation was identified for each of the nuclei in the decay chain …