Tootfinder

Trash panda update: Didn't set any more boobytraps. Sprinkled cayenne pepper powder along a bunch of their travel routes (but not fully ringing the yard) which didn't seem to do a whole lot. Maybe they just walked around it, or I need to use more? I'll try doing the entire fence line tonight and see if it's more effective if I make sure not to leave any gaps.
I tried the nerf gun for what I think will probably be the last time. Shot at one of them and the cheeky bugger …

On the Ratliff-Rush closure of an ideal of a one-dimensional ring
Veronica Crispin Quinonez, Marco D'Anna, Vincenzo Micale
https://arxiv.org/abs/2507.02444

On the Ratliff-Rush closure of an ideal of a one-dimensional ring
Let $I$ be an ideal in a Noetherian ring $R$ and let $\widetilde{I}$ be its Ratliff-Rush closure. In this paper we study the asymptotic Ratliff-Rush number, i.e. $h(I)=\min\{n\in\mathbb N_+ \mid I^m=\widetilde{I^m}, \ \forall \ m\ge n\}$, in the one-dimensional case. Since $1\le h(I)\le r(I)$, where $r(I)$ is the reduction number of $I$, we look for conditions that determine the extremal values of $h(I)$.

Like other large #FreeSoftware projects, #Gentoo developers have varying degrees of activity. There are some people who dedicate a lot of their free time to Gentoo, maintain hundreds of packages, participate in multiple areas. Then, there are people with narrower interests, lower commit counts, but they are still putting an effort and making Gentoo a better distribution — and that matters. But then, there is the tail.
There is a few of developers whose main talents seem to be 1) finding packages that require absolutely minimal maintenance effort, and 2) justifying their developer status with long essays. I mean, this is getting beyond absurd. It is not just "my packages are all up-to-date". It is not even "my packages require very low maintenance, that's why I'm not doing much". It is literally "I deliberately choose low-maintenance packages, so I don't have to do anything". But of course, all these people definitely need commit access to Gentoo, and show off their Gentoo developer badges, and it's *so damn unfair*.
And in the meantime, other developers are overburdened, and getting burned out. And they step down from more things. And who takes these things over? Of course, not the developers who just admitted to not having much to do…

I’ve long thought that top govt folks (the elected ones) should have the same healthcare/pension as the poorest citizen.
And take transit to work. https://mastodon.social/@VeroniqueB99/114797404531262958

Vee (@VeroniqueB99@mastodon.social)
Attached: 1 image Let them eat cake.

Boende i hettans Paris: ”Nu är vi less på det här” https://www.dn.se/varlden/boende-i-paris-bavar-infor-framtiden-nu-ar-vi-less-pa-det-har/

Boende i Paris bävar inför framtiden – juni var näst varmaste junimånaden som uppmätts
Boende i Paris bävar inför framtiden – juni var näst varmaste junimånaden som uppmätts i Frankrike

An investigation of a varying G through Strong Lensing and SNe Ia observations
R. F. L. Holanda, M. Ferreira, Javier E. Gonzalez
https://arxiv.org/abs/2508.00075 https://…

An investigation of a varying G through Strong Lensing and SNe Ia observations
In this paper, we analyze the potential variation of the gravitational constant $G$ using data from strong gravitational lensing systems and Type Ia supernovae. Testing $G(z)$ parameterizations where $G(z) = G_0(1 + G_1z)$ and $G(z) = G_0(1 + z)^{G_1}$, we also account for the influence of $G$ on the luminosity of SNe Ia through the Chandrasekhar mass-luminosity relation. Only the flat universe hypothesis is considered. Constraints from 158 lensing systems and the Pantheon+ sample show no signi…

Appendices for "Closed-Form BER Analysis for Uplink NOMA with Dynamic SIC Decoding"
Hequn Zhang, Qu Luo, Pei Xiao, Yue Zhang, Huiyu Zhou
https://arxiv.org/abs/2508.00540

Appendices for "Closed-Form BER Analysis for Uplink NOMA with Dynamic SIC Decoding"
This document provides the supplementary materials for the paper Closed-Form BER Analysis for Uplink NOMA with Dynamic SIC Decoding. The appendices present detailed mathematical derivations and proofs that support the analytical framework of the main paper. Specifically, we include: (i) cumulative distribution functions for ordered channel gains; (ii) probability density functions of normalized signal-plus-interference variances in NOMA dynamic SIC decoding; (iii) closed-form expressions for pa…

Phase stabilization and phase tuning of an optical lattice with a variable period
P. A. Aksentsev, V. A. Khlebnikov, I. S. Cojocaru, A. E. Rudnev, I. A. Pyrkh, D. A. Kumpilov, P. V. Trofimova, A. M. Ibrahimov, O. I. Blokhin, K. O. Frolov, S. A. Kuzmin, A. K. Zykova, D. A. Pershin, V. V. Tsyganok, A. V. Akimov
https://arxiv.org/a…

Phase stabilization and phase tuning of an optical lattice with a variable period
Optical lattices play a significant role in the field of cold atom physics, particularly in quantum simulations. Varying the lattice period is often a useful feature, but it presents the challenge of maintaining lattice phase stability in both stationary and varying-period regimes. Here, we report the realization of a feedback loop for a tunable optical lattice. Our scheme employs a CCD camera, a computer, and a piezoelectric actuator mounted on a mirror. Using this setup, we significantly impr…

China und die Seltenen Erden (II) https://www.german-foreign-policy.com/news/detail/10003

While I'm copying yesterday's photos to my computer, I'll just share some more photos from my recent blog post.
I tried to put the bushes at the lake as framing elements into the #photos. I think it worked out quite okay. -- And while we were on this walk I imagined all the time where and how this could look at sunset or with fog.
Maybe I should go there a again a couple o…