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@usul@piaille.fr
2026-09-10 03:54:17

En Israël, les révélations sur l’alerte reçue par Benyamin Nétanyahou avant le 7-Octobre provoquent un séisme politique
lemonde.fr/international/artic

@Ruhrnalist@mastodon.social
2026-10-15 04:47:44

Stories über Bahn Verspätung langweilen - ausser man ist betroffen.
Gestern abend kommt plötzlich die Meldung: Bahnhöfe fallen weg. Auch der Ersatzbahnhof wird nicht angefahren. Gut, dass ich es nicht erst heute am falschen Bahnhof gesehen habe.
Bei der Bahn braucht man keinen Kaffee am Morgen, das Adrenalin steigt auch so.

@oekologisch_unterwegs@mastodon.online
2026-08-04 17:19:38

Die #Bergwacht #Oberstdorf musste innerhalb einer Woche zu 27 Einsätzen ausrücken und stieß mit ihren ehrenamtlichen Kräften an ihre Grenzen.
Das Spektrum reichte von Stürzen und Verletzungen bis zu einer aufwendigen Vermisstensuche am

@buercher@tooting.ch
2026-10-07 17:06:57

Avant la votation, les initiants 12% avaient assuré qu‘il n‘y auraient pas des coupes. Maintenant, ils déplorent que le Conseil d‘Etat essaie d‘éviter des coupes. Les coupes et le moins d‘Etat, c’était bien le but de l’initiative 12%.
letemps.ch/suisse/vaud/le-gouv

@pre@boing.world
2026-10-01 18:05:45

People think Proportional Representation is extreme. Or that constituencies should have multiple MPs for diversity.
My visions are much more radical.
Geography is bunk. If local people want a local MP they can appoint one.
But if sea-side people around the cost want one? Or cyclists? Or Subgenii?
Why does everyone care so much about geography? Your MP is not fixing the local pot-holes. They're representing your political interests which may not be those of your neighbors.
We have a system where like 75% of people have a representative they didn't vote for and don't agree with and half the remaining were holding their nose to keep the opposition out.
Elections are a very sucky way to do democracy. Just let me nominate my representative, and then everyone can have a representative they agree with and picked personally.

@arXiv_astrophGA_bot@mastoxiv.page
2026-07-22 08:09:07

Estimating stellar metallicities from Gaia DR3 XP data using LAMOST DR10
Divyansh Srivastava, Andrzej Niedzielski, Rodolfo Smiljanic
arxiv.org/abs/2607.18707 arxiv.org/pdf/2607.18707 arxiv.org/html/2607.18707
arXiv:2607.18707v1 Announce Type: new
Abstract: Gaia DR3 provides astrophysical parameters for hundreds of millions of stars, but the metallicities [M/H] from its GSP-Phot module suffer from systematic biases. We estimate stellar metallicities from Gaia DR3 data using the homogeneous spectroscopic iron abundances [Fe/H] of LAMOST DR10 as training labels. We cross-matched LAMOST DR10 with Gaia DR3 and trained a gradient-boosted decision-tree regressor (XGBoost) on 1.20 million AFGK stars using only Gaia-derived inputs and proxies. We validated the estimates on held-out LAMOST stars, GALAH DR4, APOGEE DR17, and 46 open clusters, and applied the model to measure the radial metallicity gradient of the Milky Way disk. On the held-out test set, the model achieves a mean absolute error of 0.052 dex and $R^2=0.94$ with negligible bias, compared with 0.242 dex for GSP-Phot on the same stars. The estimates transfer well to external surveys, with mean absolute errors of 0.066 dex for GALAH and 0.068 dex for APOGEE. For open clusters, the median difference between our estimated [Fe/H] and spectroscopic values is 0.041 dex, smaller than both GSP-Phot (0.248 dex) and a previous APOGEE-trained XGBoost model (0.067 dex). Applied to the Galactic disk, our model recovers a broken thin-disk radial gradient, with inner and outer slopes of $ 0.119$ and $-0.058\,\mathrm{dex\,kpc^{-1}}$, respectively, and a break near 5.9 kpc, as well as an open-cluster gradient of $-0.066\,\mathrm{dex\,kpc^{-1}}$; both agree with previous high-resolution spectroscopic studies. Our [Fe/H] estimates are accurate to 0.05-0.07 dex for AFGK stars with $[\mathrm{Fe/H}]\gtrsim-2.5$; below this limit, the predictions should be treated as lower bounds. The catalogue and trained model are publicly available on Zenodo and are suitable for chemical studies of the Milky Way.
toXiv_bot_toot