Tootfinder

OpenAI says it has 3M "paying business users", up from 2M in February; ChatGPT Team users can now use a "record mode" for taking notes during meetings (Hayden Field/The Verge)
https://www.theverge.com/news/679580/chatgpt-google-d…

ChatGPT can now read your Google Drive and Dropbox
ChatGPT now has 3 million “paying business users” and is adding new features like meeting notes.

This https://arxiv.org/abs/2501.14087 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

On the scalar sector of 2HDM: ring of basis invariants, syzygies, and six-loop renormalization-group equations
We consider a generating set of reparametrization invariants that can be constructed from the couplings and masses entering the scalar potential of the general Two-Higgs-Doublet Model (2HDM). Being independent of higgs-basis rotations, they generate a polynomial ring of basis invariants that represent the physical content of the model. Ignoring for the moment gauge and Yukawa interactions, we derive six-loop renormalization group equations (RGE) for all the invariants entering the set. We do no…

July 1 2021
We did mini mid-pandemic road trip to the Interior and found ourselves in a heatdome induced smokey hellscape in Lillooet. Just down the highway… the day before, after hitting the highest temperature ever recorded in Canada 49.6°C, Lytton,BC was completely destroyed by fire after a train (allegedly) sparked a fire that moved like lightning through the town. It still is not fully rebuilt. 😢 Just a few buildings.
We managed to get out of the smoke as we drove a little further north and east to Cache Creek, stopping at a lake to swim. It was nice. But it seemed like there was fire everywhere around us.
This was the first time we got to drive our new Kona EV on a long distance trip. It performed wonderfully. And the kind shop owner let us plug it in to the wall outlet at the hotel.

GOTO065054 593624 - an 8.5 mag amplitude dwarf nova identified in real time via Kilonova Seekers: #Kilonova Seekers - the GOTO project for real-time citizen science in time-domain astrophysics: https://academic.oup.com/mnras/article/533/2/2113/7735340?login=false -> A citizen science project has already identified 20 new astronomical discoveries: https://www.port.ac.uk/news-events-and-blogs/news/citizen-science-project-identifies-20-new-astronomical-discoveries

EMSpice 2.1: A Coupled EM and IR Drop Analysis Tool with Joule Heating and Thermal Map Integration for VLSI Reliability
Subed Lamichhane, Haotian Lu, Sheldon X. -D. Tan
https://arxiv.org/abs/2507.00270

EMSpice 2.1: A Coupled EM and IR Drop Analysis Tool with Joule Heating and Thermal Map Integration for VLSI Reliability
Electromigration (EM) remains a critical reliability concern in current and future copper-based VLSI circuits. As technology scales down, EM-induced IR drop becomes increasingly severe. While several EM-aware IR drop analysis tools have been proposed, few incorporate the real impact of temperature distribution on both EM and IR drop effects. In this work, we introduce EMSpice 2.1, an enhanced tool built upon the existing coupled IR-EM analysis framework, EMSpice 2.0, for EM-aware IR drop analys…

This https://arxiv.org/abs/2501.11669 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Bridging the Gap: OPTICAM Reveals the Hidden Spin of the WZ Sge Star GOTO 065054.49+593624.51
WZ Sge stars are highly evolved accreting white dwarf systems (AWDs) exhibiting remarkably large amplitude outbursts (a.k.a. super-outbursts), typically followed by short rebrightenings/echo outbursts. These systems have some of the lowest mass transfer rates among AWDs, making even low magnetic fields dynamically important. Such magnetic fields are often invoked to explain the phenomenology observed in these systems, such as their X-ray luminosity and long periods of quiescence (30+ years). Ho…

Ark: An Open-source Python-based Framework for Robot Learning
Magnus Dierking, Christopher E. Mower, Sarthak Das, Huang Helong, Jiacheng Qiu, Cody Reading, Wei Chen, Huidong Liang, Huang Guowei, Jan Peters, Quan Xingyue, Jun Wang, Haitham Bou-Ammar
https://arxiv.org/abs/2506.21628

Ark: An Open-source Python-based Framework for Robot Learning
Robotics has made remarkable hardware strides-from DARPA's Urban and Robotics Challenges to the first humanoid-robot kickboxing tournament-yet commercial autonomy still lags behind progress in machine learning. A major bottleneck is software: current robot stacks demand steep learning curves, low-level C/C++ expertise, fragmented tooling, and intricate hardware integration, in stark contrast to the Python-centric, well-documented ecosystems that propelled modern AI. We introduce ARK, an open-so…

Hidden Transits: TOI-2285 b is a Warmer sub-Neptune Likely with a Super-Earth Companion
Akihiko Fukui
https://arxiv.org/abs/2505.22009 https://

Hidden Transits: TOI-2285 b is a Warmer sub-Neptune Likely with a Super-Earth Companion
TOI-2285 b is a sub-Neptune-sized planet orbiting a nearby M dwarf, discovered through the TESS photometric survey and ground-based follow-up observations. The planet was initially reported to have an orbital period of 27.27 d, making it one of the lowest temperature sub-Neptunes transiting a bright M dwarf. However, additional TESS data reveal that its true orbital period is 13.64 d, half the original value, resulting in a warmer equilibrium temperature (358 K) than previously estimated (284 K…

The shared braincell was late to work :neocat_woozy:

Test Drive Unlimited: a quieter Horizon Festival
I found TDU in a box in the loft a couple of weeks ago, and since I now have a new Xbox 360 set up (replacing my old one which didn't have HDMI output) so can play games which are not compatible with the Xbox One, I thought I'd revisit the game. Unfortunately my save wasn't in the cloud, and wasn't transferred while I had both consoles set up, so I needed to start from the beginning.