Tootfinder

"#RDC Deutschland Group to continue #NightTrain service between Berlin – Hamburg – Stockholm"

RDC Deutschland wird Nachtzug Berlin Stockholm fortführen
The company will continue to offer the established connections even after government funding in Sweden ends. While the European night train landscape is undergoing change, the RDC Deutschland Group is focusing on continuity and responsibility. The company will continue to operate the successful Berlin – Hamburg – Stockholm night train connection even after government funding expires in summer 2026.

COUNTDOWN: 1 day to No Kings 2
Today's Action: commit to being there
It MUST be important to go to No Kings.
Because Trump, Mike Johnson and the MAGA establishment have all declared they don't want you to go
Local No Kings:
noon 10/18,
Alameda Park,
1400 Santa Barbara St.
#NoKings

Indivisible Santa Barbara (@indivisiblesb.bsky.social)
COUNTDOWN: 1 day to No Kings 2 Today's Action: commit to being there It MUST be important to go to No Kings. Because Trump, Mike Johnson and the MAGA establishment have all declared they don't want you to go Local No Kings: noon 10/18, Alameda Park, 1400 Santa Barbara St. #NoKings #indivisiblesb

Why Do We See So Few Black Holes in Massive Binaries?
S. Karpov, V. Lipunov
https://arxiv.org/abs/2509.15977 https://arxiv.org/pdf/2509.15977

Why Do We See So Few Black Holes in Massive Binaries?
We offer a simple explanation for the small number of black holes observed in pairs with massive stars. In detached massive binaries, spherically symmetric accretion takes place. This accretion could result in effective energy release in the hard band only if the equipartition of the gravitational and magnetic energy of plasma is established (Shvartsmans theorem). However, we show that due to the magnetic exhaust effect this equilibrium is virtually never established for the actual magnetic fie…

Pois hš e é sério. Por vezes mortífero.
https://expresso.pt/sociedade/meteorologia/2025-11-15-tornado-no-algarve-parece-ter-aparecido-do-nada-mas-o-…

Tornado no Algarve parece ter “aparecido do nada”, mas o perigo estava identificado: em Portugal há um problema de “perceção do risco”
O tornado de Albufeira voltou a revelar falhas estruturais na prevenção e na preparação do país para fenómenos extremos: em vez de "rajadas fortes" é diferente dizer "estruturas ligeiras podem ser arrancadas do sítio", exemplifica um geógrafo ouvido pelo Expresso

What should you do if you are unable to connect to the Dutch grid? Build your own distribution grid! That’s what a renewable energy developer in the north of the country has done.
https://www.novar.energy/news/novar-establishes-its-own-grid-connection/

Novar establishes its own grid connection - Novar EN
The answer to the congested energy grid: Novar establishes its own grid connection for the largest solar park in the Netherlands. Read the full press release here.

Rip D'Angelo
Genius brings and bears a price
Torn down to early
Always
#dangelo #goat

On fundamental properties of high-order forward-backward envelope
Alireza Kabgani, Masoud Ahookhosh
https://arxiv.org/abs/2511.10421 https://arxiv.org/pdf/2511.10421 https://arxiv.org/html/2511.10421
arXiv:2511.10421v1 Announce Type: new
Abstract: This paper studies the fundamental properties of the high-order forward-backward splitting mapping (HiFBS) and its associated forward-backward envelope (HiFBE) through the lens of high-order regularization for nonconvex composite functions. Specifically, we (i) establish the boundedness and uniform boundedness of HiFBS, along with the H\"older and Lipschitz continuity of HiFBE; (ii) derive an explicit form for the subdifferentials of HiFBE; and (iii) investigate necessary and sufficient conditions for the differentiability and weak smoothness of HiFBE under suitable assumptions. By leveraging the prox-regularity of $g$ and the concept of $p$-calmness, we further demonstrate the local single-valuedness and continuity of HiFBS, which in turn guarantee the differentiability of HiFBE in neighborhoods of calm points. This paves the way for the development of gradient-based algorithms tailored to nonconvex composite optimization problems.
toXiv_bot_toot

Scalar-tensor theories in the Lyra geometry: Invariance under local transformations of length units and the Jordan-Einstein frame conundrum
E. C. Valad\~ao, Felipe Sobrero, Santiago Esteban Perez Bergliaffa
https://arxiv.org/abs/2510.08433

Scalar-tensor theories in the Lyra geometry: Invariance under local transformations of length units and the Jordan-Einstein frame conundrum
The Lyra geometry provides an interesting approach to develop purely geometrical scalar-tensor theories due to the natural presence of the Lyra scale function. This paper explores further the scale function source term to construct a theory on Lyra manifolds which contains proper generalizations of both Brans-Dicke gravity and the Einstein-Gauss-Bonnet scalar-tensor theory. It is shown that the symmetry group of gravitational theories on the Lyra geometry comprises not only coordinate transform…

Should I Run My Cloud Benchmark on Black Friday?
S\"oren Henning, Adriano Vogel, Esteban Perez-Wohlfeil, Otmar Ertl, Rick Rabiser
https://arxiv.org/abs/2510.12397 https://

Should I Run My Cloud Benchmark on Black Friday?
Benchmarks and performance experiments are frequently conducted in cloud environments. However, their results are often treated with caution, as the presumed high variability of performance in the cloud raises concerns about reproducibility and credibility. In a recent study, we empirically quantified the impact of this variability on benchmarking results by repeatedly executing a stream processing application benchmark at different times of the day over several months. Our analysis confirms th…

The Kremlin has heaped praise on Donald Trump’s latest national security strategy,
calling it an encouraging change of policy
that largely aligns with Russian thinking.
The remarks follow the publication of a White House document on Friday
💥that criticises the EU and says Europeis at risk of “civilisational erasure”,
💥while making clear the US is keen to establish better relations with Russia.
🔥“The adjustments that we see correspond in many ways to our vi…