Tootfinder

Immediate Media's BBC History Magazine launches a Substack and a weekly podcast, and says it has 745,000 paying online subscribers, but print remains important (Charlotte Tobitt/Press Gazette)
https://pressgazette.co.uk/publishers/…

This https://arxiv.org/abs/2406.14346 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Atomic Toposes with Co-Well-Founded Categories of Atoms
The atoms of the Schanuel topos can be described as the pairs $(n,G)$ where $n$ is a finite set and $G$ is a subgroup of $\operatorname{Aut}(n)$. We give a general criterion on an atomic site ensuring that the atoms of the topos of sheaves on that site can be described in a similar fashion. We deduce that these toposes are locally finitely presentable. By applying this to the Malitz-Gregory atomic topos, we obtain a counter-example to the conjecture that every locally finitely presentable topos…

Billionaire and radio host John Catsimatidis prefers Eric Adams over fellow Republican in mayor's race (Emily Ngo/Politico)
https://www.politico.com/news/2025/06/27/billionaire-and-radio-host-john-catsimatidis-prefers-eric-adams-over-fellow-republican-in-mayors-race-00429886
http://www.memeorandum.com/250627/p163#a250627p163

Optical response of a binary atomic system with incoherent gain
L. Acevedo, J. S\'anchez-C\'anovas, M. Donaire
https://arxiv.org/abs/2506.21177 htt…

Optical response of a binary atomic system with incoherent gain
We study the optical response of a binary system of identical atoms in which one of them is excited by an incoherent pump. %We study the properties of photon scattering, absorption and emission, together with the time evolution of the atomic system. %This allows us to characterize and eventually manipulate the state of the system, paving the way for prospective applications in quantum information processing. Applying the diagrammatic formalism developed in Donaire [Phys. Rev. A104, 043704 (2021…

An Efficient Implementation of Guard-Based Synchronization for an Object-Oriented Programming Language
Shucai Yao (Huawai Technologies Canada), Emil Sekerinski (McMaster University)
https://arxiv.org/abs/2505.20850

An Efficient Implementation of Guard-Based Synchronization for an Object-Oriented Programming Language
In the shared variable model of concurrency, guarded atomic actions restrict the possible interference between processes by regions of atomic execution. The guard specifies the condition for entering an atomic region. That is a convenient model for the specification and verification of concurrent programs, but has eschewed efficient execution so far. This article shows how guarded atomic actions, when attached to objects, can be implemented highly efficiently using a combination of coroutines, …

Someone on lemmy mentioned that replacing "Russian XYZ" with "local meth head" makes news headlines much more fun.
I agree. So I installed a firefox extension that does this automatically: https://addons.mozilla.org/firefox/addon/word-replacer-max/

Word Replacer Max – Get this Extension for 🦊 Firefox (en-US)
Download Word Replacer Max for Firefox. Seamlessly replace text on any web page.

WhatsApp launches optional Meta AI-generated summaries of unread messages in the US; Meta can't read the messages and summaries are hidden from other chat users (Ivan Mehta/TechCrunch)
https://techcrunch.com/2025/06/25/meta-is-adding-ai-power…

Meta is adding AI-powered summaries to WhatsApp | TechCrunch
Meta announced on Wednesday that it's adding an AI-powered summaries feature to WhatsApp. The optional new feature uses Meta AI to summarize unread

Hyperspherical Variational Autoencoders Using Efficient Spherical Cauchy Distribution
Lukas Sablica, Kurt Hornik
https://arxiv.org/abs/2506.21278 https://

Hyperspherical Variational Autoencoders Using Efficient Spherical Cauchy Distribution
We propose a novel variational autoencoder (VAE) architecture that employs a spherical Cauchy (spCauchy) latent distribution. Unlike traditional Gaussian latent spaces or the widely used von Mises-Fisher (vMF) distribution, spCauchy provides a more natural hyperspherical representation of latent variables, better capturing directional data while maintaining flexibility. Its heavy-tailed nature prevents over-regularization, ensuring efficient latent space utilization while offering a more expres…

A look at SFGate, which has the largest audience of any purely local US news site; EIC Grant Marek says the site has 60 employees and has "never had a layoff" (Lucy Kenningham/Press Gazette)
https://pressgazette.co.uk/pub…

How SFGATE is making local news pay and filling California's news gaps
SFGATE has the largest audience of any purely local news site in the US.