Tootfinder

Sources: the US has started issuing licenses to Nvidia to export H20 chips to China following weeks of inaction, after Jensen Huang met Trump on Wednesday (Financial Times)
https://www.ft.com/content/e9c52f00-9bde-4840-801e-ba66c792df9e

https://www.theverge.com/notepad-microsoft-newsletter/754647/microsoft-grok-4-roll-out-private-preview-notepad?utm_content=buffer2ce4c&…

Microsoft is cautiously onboarding Grok 4 following Hitler concerns
Microsoft is taking a careful approach with rolling out Grok 4 on Azure AI Foundry. It’s working on a private preview for a handful of customers.

Sources: Apple is in talks to acquire US streaming rights for Formula 1 following the success of F1 the Movie, which has grossed ~$300M at the box office (Financial Times)
https://www.ft.com/content/ef6bbb12-1ef5-4fc7-bff5-77d000c36bff

Primer to get you started with Optimization and Mathematical Programming in R #rstats

CRAN Task View: Optimization and Mathematical Programming
This CRAN Task View contains a list of packages that offer facilities for solving optimization problems. Although every regression model in statistics solves an optimization problem, they are not part of this view. If you are looking for regression methods, the following views will also contain useful starting points: MachineLearning, Econometrics, Robust Packages are categorized according to the following sections. See also the “Related Links” and “Other Resources” sections at the end.

Stress-induced Martensitic transformation in epitaxial Ni-Mn-Ga thin films and its correlation to optical and magneto-optical properties
M. Make\v{s}, J. Z\'azvorka, M. Hubert, P. Ve\v{r}t\'at, M. Rame\v{s}, J. Zemen, O. Heczko, M. Veis
https://arxiv.org/abs/2507.04907

Stress-induced Martensitic transformation in epitaxial Ni-Mn-Ga thin films and its correlation to optical and magneto-optical properties
The optical and magneto-optical properties of thin epitaxial Ni-Mn-Ga films, with thicknesses ranging from 8 to 160 nm, were investigated across the spectral range of 0.7-6.4 eV. The films were deposited by DC magnetron sputtering on MgO substrate with stress-mediating Cr buffer layer. Structural and magnetic characterization revealed an stress-induced martensitic transformation for the films thicker than 80 nm, while thinner films remained in austenite structure deformed by substrate constrain…

Sources: Apple is in talks to acquire US streaming rights for Formula 1 following the success of F1 the Movie, which has grossed ~$300M at the box office (Financial Times)
https://www.ft.com/content/ef6bbb12-1ef5-4fc7-bff5-77d000c36bff

In case anyone here has connections with the Python team: can you please tell them to update their docs on XML security? The way it is is quite misleading, and it's been annoying me for a while. I raised this a while ago in their issue tracker, but it got no reaction whatsoever. https://github.com/python/cpython/issu…

Reconsider XML Security warnings / obsolete vulnerabilities · Issue #127502 · python/cpython
Documentation The documentation for the xml.etree.ElementTree API contains the following stark warning: Warning: The xml.etree.ElementTree module is not secure against maliciously constructed data....

Filing: Netflix UK distribution arm reports revenue of £1.85B for 2024, up 11% from 2023, and an 11% growth in average paid memberships (Naman Ramachandran/Variety)
https://variety.com/2025/tv/news/netflix-uk-revenue-surges-2-billion-profits-grow…

Netflix U.K. Revenue Surges to $2.4 Billion, Profits Grow
Netflix's U.K. arm delivered a strong performance in 2024, with revenue climbing 11% to $2.48 billion as the streaming giant continued its expansion.

The IRS open sourced much of its incredibly popular Direct File software as the future of the free tax filing program is at risk of being killed by Intuit’s lobbyists and Donald Trump’s megabill.
Meanwhile, several top developers who worked on the software have left the government and joined a project to explore the “future of tax filing” in the private sector

The IRS Tax Filing Software TurboTax Is Trying to Kill Just Got Open Sourced
Direct File has been open sourced, and its creators have left government to continue working on the "future of tax filing."

Implantation studies of low-energy positive muons in niobium thin films
Ryan M. L. McFadden, Andreas Suter, Leon Ruf, Angelo Di Bernardo, Arnold M. M\"uller, Thomas Prokscha, Zaher Salman, Tobias Junginger
https://arxiv.org/abs/2507.03785

Implantation studies of low-energy positive muons in niobium thin films
Here we study the range of keV positive muons $μ^+$ implanted in Nb$_2$O$_5$($x$ nm)/Nb($y$ nm)/SiO$_2$(300 nm)/Si [$x$ = 3.6 nm, 3.3 nm; $y$ = 42.0 nm, 60.1 nm] thin films using low-energy muon spin spectroscopy (LE-$μ$SR). At implantation energies 1.3 keV $\leq E \leq$ 23.3 keV, we compare the measured diamagnetic $μ^+$ signal fraction $f_{\mathrm{dia.}}$ against predictions derived from implantation profile simulations using the TRIM.SP Monte Carlo code. Treating the implanted $μ^+$ as l…