Tootfinder

Beamstrahlung monitoring at SuperKEKB upgrade 2023
Dmitri Liventsev, Giovanni Bonvicini, Daniel Ricalde Herrmann, Pedro L. M. Podesta-Lerma, Makoto Tobiyama
https://arxiv.org/abs/2509.03955

Beamstrahlung monitoring at SuperKEKB upgrade 2023
Beam monitoring is crucial for particle accelerators to achieve high luminosity. We describe an upgrade of the LABM, a beam monitoring device utilizing observation of the beamstrahlung, radiation emitted by a beam of charged particles when it accelerates in the electromagnetic field of another beam of charged particles.

PitchBook: US AI and robotics VC deals are up over 4x since 2023 to $160B so far in 2025, while comparable China deals are just $10B , up from $9.24B in 2023 (CNBC)
https://www.cnbc.com/2025/11/26/cnbc-china

CNBC's The China Connection newsletter: Foreign investors warm to China’s cheaper AI valuations despite fears of a U.S. bubble
For all the worries about a bubble in U.S. AI spending, capital flows into China's tech sector is far less, pushing startups to do more with less.

Shirley Collins - "Archangel Hill" (2023)
#NowPlaying #ShirleyCollins #BritishFolkMusic

Nachtrag: Änderung der Berechnung bezüglich https://mastodon.online/@tinoeberl/115236719296242946.
Der Filter auf "in Betrieb" ändert die Zahlen leider rückwirkend. Also:
Anzahl der Inbetriebnahmen von Balkonkraftwerken pro Jahr in

Ein Nebeneffekt der chinesischen"Solarmauer" ist, dass die Vegetation vom Schatten der Paneele profitiert und die Wüste damit zurückgedrängt wird.
https://www.sonnenseite.com/de/energie/die

Die Grüne Chinesische Solarmauer in der Kubuqi-Wüste entwickelt sich zum größten Klimaschutzprojekt der Welt - Sonnenseite - Ökologische Kommunikation mit Franz Alt
Im Mai 2023 besuchte ich eines der größten Solar- und Begrünungsprojekte der Welt in der zur Gobi gehörenden Kubuqi-Wüste in China und berichtete

Social media ‘trust’/’distrust’ buttons could reduce spread of misinformation | UCL News - UCL – University College London
@… & @… I am tagging you, although maybe you already knew hehe

Partially paywalled but still lots of juicy data. “State of the software engineering job market in 2025”: https://newsletter.pragmaticengineer.com/p/state-of-the-tech-market-in-2025
From which:

State of the software engineering job market in 2025
A deepdive into today’s tech jobs market, with exclusive data on tech jobs, AI engineering, Big Tech recruitment, the growing importance of location, and more

Multivariate Quadratic Hawkes Processes -- Part II: Non-Parametric Empirical Calibration
Cecilia Aubrun, Michael Benzaquen, Jean-Philippe Bouchaud
https://arxiv.org/abs/2509.21244

Multivariate Quadratic Hawkes Processes -- Part II: Non-Parametric Empirical Calibration
This is the second part of our work on Multivariate Quadratic Hawkes (MQHawkes) Processes, devoted to the calibration of the model defined and studied analytically in Aubrun, C., Benzaquen, M., & Bouchaud, J. P., Quantitative Finance, 23(5), 741-758 (2023). We propose a non-parametric calibration method based on the general method of moments applied to a coarse-grained version of the MQHawkes model. This allows us to bypass challenges inherent to tick by tick data. Our main methodological innov…

Sources: Micron plans to stop selling server chips to data centers in China after a 2023 ban, but will continue selling chips to auto and smartphone sectors (Reuters)
https://www.reuters.com/business/autos-transp…

There is an ActivityPub proposal that involves the #DNS.
I have only just discovered it and have not considered it deeply so I am reluctant to make any grand statements. It is not obvious to me why this is useful or better than alternative approaches. It appears to involve the use of TXT RRs, any new de facto use of which makes me skeptical.

[TRACKING] FEP-612d: Identifying ActivityPub Objects through DNS
The proposal has been received. Thank you! This issue tracks discussions and updates to the proposal during the `DRAFT` period. Please post links to relevant discussions as comment to this issue. `dateReceived`: 2023-04-18 If no further actions are taken, the proposal may be set by ed...

2023 gab es aufgeregte Berichte über eine rätselhafte Erwärmung des #Atlantik.
Nun erlebt der #Nordpazifik eine ungewöhnlich starke #MeeresHitzewelle.
Zwischen Juli und Septemb…

Mysterious 'warm blob' breaks records in the North Pacific Ocean
Temperatures have surged across a large area of the north Pacific - and scientists don't know exactly why.

Supra-arcade downflows in an extensive fan associated with a giant quiescent solar filament eruption
Xiaoyan Xie, Katharine Reeves, Chengcai Shen, Nishu Karna, Yan Xu, Christopher Moore, Crisel Suarez, Ritesh Patel, Daniel Seaton
https://arxiv.org/abs/2509.09944

Supra-arcade downflows in an extensive fan associated with a giant quiescent solar filament eruption
We investigate the aftermath of a giant quiescent solar filament eruption on December 24, 2023. One feature of the eruption is an extensive fan above the filament channel that is about three times as wide as similar structures that appear above active regions (ARs) during solar flares. The fan contains numerous supra-arcade downflows (SADs), and we investigate the largest SADs with continuous Hinode X-ray Telescope (XRT) observations. The measured maximum width of the SADs in this event is at l…

Quantum criticality in cuprate superconductors revealed by optical conductivity measurement
Hwiwoo Park, Sung-Sik Lee, G. D. Gu, Jungseek Hwang
https://arxiv.org/abs/2509.19675 …

Quantum criticality in cuprate superconductors revealed by optical conductivity measurement
The ubiquitous temperature ($T$)-linear behaviour of the transport scattering rate in the normal state of strongly correlated electron systems is called strange metallicity \cite{zaanen:2004,phillips:2022,hartnoll:2022,chowdhury:2022,yuan:2022}. Although strange metallicity is crucial to understanding superconductivity in correlated electron systems, its origin remains elusive to date \cite{hussey:2023}. Here, we present the doping-, temperature-, and frequency ($ω$)-dependent transport proper…

Non-iid hypothesis testing: from classical to quantum
Giacomo De Palma, Marco Fanizza, Connor Mowry, Ryan O'Donnell
https://arxiv.org/abs/2510.06147 https://

Non-iid hypothesis testing: from classical to quantum
We study hypothesis testing (aka state certification) in the non-identically distributed setting. A recent work (Garg et al. 2023) considered the classical case, in which one is given (independent) samples from $T$ unknown probability distributions $p_1, \dots, p_T$ on $[d] = \{1, 2, \dots, d\}$, and one wishes to accept/reject the hypothesis that their average $p_{\mathrm{avg}}$ equals a known hypothesis distribution $q$. Garg et al. showed that if one has just $c = 2$ samples from each $p_i$,…

Anzahl der installierten #Windkraftanlagen pro Jahr in #Deutschland mit Stand vom 06.09.2025.
Der Datenbestand enthält ggf. unplausible Datensätze.
👉 Zusatzlesestoff: 14 Tipps zum #Energiesparen

All Models Are Wrong, But Can They Be Useful? Lessons from COVID-19 Agent-Based Models: A Systematic Review
Emma Von Hoene, Sara Von Hoene, Szandra Peter, Ethan Hopson, Emily Csizmadia, Faith Fenyk, Kai Barner, Timothy Leslie, Hamdi Kavak, Andreas Zufle, Amira Roess, Taylor Anderson
https://arxiv.org/abs/2509.13346

All Models Are Wrong, But Can They Be Useful? Lessons from COVID-19 Agent-Based Models: A Systematic Review
The COVID-19 pandemic prompted a surge in computational models to simulate disease dynamics and guide interventions. Agent-based models (ABMs) are well-suited to capture population and environmental heterogeneity, but their rapid deployment raised questions about utility for health policy. We systematically reviewed 536 COVID-19 ABM studies published from January 2020 to December 2023, retrieved from Web of Science, PubMed, and Wiley on January 30, 2024. Studies were included if they used ABMs …

Verizon agrees to buy Starry, which provides home internet via millimeter wave tech to ~100K customers and filed for bankruptcy in 2023, for an undisclosed sum (Masha Abarinova/Fierce Network)
https://www.fierce-network.com/broadband/verizon-buys-starry-what-y…

Anzahl der registrierten #Balkonkraftwerke in #Deutschland mit Stand vom 19.09.2025.
Der aktuelle Höchststand liegt bei 1131260 registrierten Anlagen.
Unplausible Inbetriebnahmedaten von 1900 bis 2017 wurden durch das Registrierungsdatum der

🇺🇦 #NowPlaying on #BBC6Music's #RadcliffeAndMaconie
Level 42:
🎵 Running In The Family
#Level42
https://orenamram.bandcamp.com/track/level-42-running-in-the-family-oren-amram-2023-remix
https://open.spotify.com/track/1x8eR79qEHjqSRAeQzV8c2

Dealroom: European VC deals are set to rise 3-4% YoY in 2025 to $57B, about the same as in 2023, driven by rising startup valuations in AI, fintech, and defense (Ivan Levingston/Financial Times)
https://www.ft.com/content/5cd37cea-87e7-4648-b85b-f77091dd4558

An intense geomagnetic storm originated from stealth Coronal Mass Ejection: remote and $in situ$ observations by near radially aligned spacecraft
P. Vemareddy, K. Selva Bharathi
https://arxiv.org/abs/2509.10090

An intense geomagnetic storm originated from stealth Coronal Mass Ejection: remote and $in situ$ observations by near radially aligned spacecraft
We investigate the solar origin and heliospheric evolution of an intense geomagnetic storm that occurred on March 23-24, 2023. Despite multiple candidate CMEs observed between March 19-21, a weak CME detected on March 19 at 18:00 UT was identified as the cause, originating from the eruption of a longitudinal-filament channel near center of the sun. The channel underwent a smooth transition to eruption phase without detectable low coronal signatures. Wide-angle heliospheric imaging revealed asym…

Jährlicher Zubau und Rückbau von #Balkonsolarleistung in Deutschland mit Stand vom 05.09.2025.
Unplausible Inbetriebnahmedaten von 1900 bis 2017 wurden durch das Registrierungsdatum der #Steckersolaranlage ersetzt.
👉 Zusatzlesestoff: Förderantrag

🇺🇦 #NowPlaying on #BBC6Music's #TheMorningAfterMix
Suicide:
🎵 Surrender ('88 Version) (2023 Remaster)
#Suicide
https://promqueenband.bandcamp.com/track/surrender-suicide
https://open.spotify.com/track/4Ds35tFDM7sTBpB2h09c9I