@usul@piaille.fr2026-05-20 04:45:02
Après un an de présence du Rassemblement national, « les esprits RNisés » de l’Eure
https://www.lemonde.fr/politique/article/2023/06/17/apres-un-an-de-presence-du-rassemblement-national-les-…
@usul@piaille.fr2026-05-20 04:45:02
@cdarwin@c.im2026-07-15 23:59:28
The Space Development Agency(SDA) is a United States Space Force
direct-reporting unit
tasked with deploying disruptive space technology.
One of the technologies being worked on is space-based missile tracking using large global satellite constellations made up of
industry-procured low-cost satellites.
The SDA has been managed by the United States Space Force since October 2022.
By February 2024 the SDA had 38 satellites on orbit.
SDA intends to have…
@vosje62@mastodon.nl2026-07-21 06:24:18
RE: #bavovna
'On 25 April 2022, during the Russian invasion of Ukraine, explosions rang out at a military base and an oil depot in the Russian city of Bryansk.[3] As per the Russian government standards, Russian media reported the explosion as a khlopok, a "pop".[1] However, when the announcement was translated into the Ukrainian language, the machine translation program confused the identically written words for "pop" and "cotton", and translated khlopok into Ukrainian as bavovna (Ukrainian: бавовна), a word which unambiguously means "cotton".[4][5] '
https://en.wikipedia.org/wiki/Bavovna
@Jeff@mastodon.opencloud.lu2026-07-17 05:13:06
Communication de la Commission
C(2026) 4730 final, 10.07.2026
Guidelines on the Application of Article 13(5) of Directive (EU) 2022/2557 on the Resilience of Critical Entities
La Commission européenne a adopté les lignes directrices non contraignantes prévue Š l’Article 13 (5) de la Directive CER qui visent Š préciser les mesures de #résilience que les
@netzschleuder@social.skewed.de2026-07-14 14:00:06
dom: Animal dominance archive (2022)
Animal dominance interaction data published over a century of research. The archive contains 434 agonistic interaction datasets, totaling over 241,000 interactions. A directed edge (i,j) corresponds to an antagonist interaction between i (winner) and j (loser). If a 'weight' edge property map exists, it counts the number of such interactions.
This network has 24 nodes and 122 edges.
Tags: Social, Animal, Weighted
@EarthOrgUK@mastodon.energy2026-07-08 19:51:02
Home Heat Pumps: Barriers to Installation (2022) - A case study in the friction in specifying and installing a heat-pump in the UK, even for a savvy early adopter. #heatpump #netZero #futureReady -…
@Sustainable2050@mastodon.energy2026-07-05 10:22:06
The first half of 2026 was the 5th warmest on record here in the central Netherlands.
Just following the forecast for the coming 2 weeks, and then the 1991-2020 average (cool by now) would already bring this year into the top-3 warmest since 1901.
@edintone@mastodon.green2026-07-06 16:58:48
The International Online Organ Forum is the place to go if you are interested in organ music or think you might be. It's on several social media channels (not Mastodon - yet!). Sign-up for their free monthly newsletter and get an amazing free feature-length organ film each month, FREE too. https://io-of.org/st-vi…
@Techmeme@techhub.social2026-06-06 00:31:03
Privacy token Zcash plunges after the disclosure of a 2022 vulnerability in its Orchard shielded pool that could have allowed undetectable ZEC counterfeiting (Akash Girimath/Decrypt)
https://decrypt.co/370105/zec-crashes-38-as-zcash-discloses…
@NuclearDisorder@mastodon.social2026-06-14 06:08:48
Heute vor 3 Jahren: Am 14. Juni 2023 erklärte der belarussische Präsident Aleksander Lukaschenko in einem Fernsehinterview mit dem russischen Staatssender Russia-1, dass #Belarus, wie am 25.03.23 durch Putin angekündigt, #Kernwaffen von Russland erhalten habe.
@tinoeberl@mastodon.online2026-06-30 20:22:02
Kumulativer Zubau von #Balkonsolarleistung in #Deutschland mit Stand vom 29.06.2026.
Die summierte Leistung aller offiziell registrierten #Steckersolaranlagen beträgt b…
@krone@frawas.de2026-07-01 16:48:16
Neuer Tatvorwurf - Erster Nord-Stream-Verdächtiger angeklagt #News #Nachrichten
@EarthOrgUK@mastodon.energy2026-06-04 03:23:04
On Website Technicals (2022-07) - Tech updates: hot, cross (references). - https://www.earth.org.uk/note-on-site-technicals-62.html
@BBC6MusicBot@mastodonapp.uk2026-07-10 20:32:56
@arXiv_mathAT_bot@mastoxiv.page2026-06-03 07:44:29
Cheeger Inequalities for the Persistent Laplacian
Magnus Bakke Botnan, Rui Dong
https://arxiv.org/abs/2606.02846 https://arxiv.org/pdf/2606.02846 https://arxiv.org/html/2606.02846
arXiv:2606.02846v1 Announce Type: new
Abstract: We study Cheeger-type inequalities for persistent Laplacians associated with inclusions of simplicial complexes $\mathcal{K}\hookrightarrow \mathcal{L}$. We introduce a persistent up $p$-Laplacian $\Delta_{q,p,\mathrm{up}}^{\mathcal{K},\mathcal{L}}$ for $p\geq 1$. For $p=2$, this recovers the usual persistent up Laplacian, while for $p=1$ it yields a nonzero persistent Cheeger constant $\varphi_q^{\mathcal{K},\mathcal{L}}$. We prove a Cheeger-type inequality relating $\varphi_q^{\mathcal{K},\mathcal{L}}$ to the smallest nonzero eigenvalue of $\Delta_{q,\mathrm{up}}^{\mathcal{K},\mathcal{L}}$. This gives a persistent extension of recent work by Jost and Zhang (Ann. Sc. Norm. Super. Pisa Cl. Sci., 2024; arXiv:2302.01069).
We then study two more structured settings. Under a locally complete $q$-skeleton assumption on $\mathcal{K}$, we extend the complete-skeleton isoperimetric inequality of Parzanchevski--Rosenthal--Tessler (Combinatorica, 2016; arXiv:1207.0638) to the persistent setting. For orientable $(q 1)$-dimensional pseudomanifolds, we prove a Kron-type reduction of the persistent up Laplacian to a vertex- and edge-weighted graph Laplacian, possibly with Dirichlet boundary terms, and obtain two-sided Cheeger inequalities; this is related to the dual-graph perspective in the work of Steenbergen--Klivans--Mukherjee (Adv. Appl. Math., 2014; arXiv:1209.5091). We also describe the nonzero persistent Cheeger constant $\varphi_q^{\mathcal{K},\mathcal{L}}$ explicitly in terms of the dual graph in the non-branching pseudomanifold case. Finally, for graph inclusions $H\hookrightarrow G$, we compare the persistent Cheeger constants introduced here with the Kron-reduction Cheeger constants of M\'emoli et al. (SIAM J. Math. Data Sci., 2022; arXiv:2012.02808).
toXiv_bot_toot
@chris@mstdn.chrisalemany.ca2026-06-02 19:11:25
My water bill came in recently, which is kind of appropriate considering all the pond talk.
Since building it, the front yard #pandemicPond very very rarely is topped up on its own from tap water. Generally we keep it full from rain water, the rain barrel, or as part of the general low-flow spray/water system for the yard in the summer. So our water consumption really is dependant on how much garden watering we are doing. I'm not surprised we were high last year as we watered the new green-driveway and young trees.
The #PoolPond might, or might not, be different given the sheer volume *and* surface area (ie. evaporation). We have a 1000L rainwater barrel in the back yard, but that would only be useful for replacing evaporation losses at best in the poolpond.
I'll have to fill it once or twice in the coming weeks and possibly once a year if I do an annual cleaning at the end of the summer. We'll see. This year will also feature a return of vegetation to the back yard, so we'll likely be watering it more than when it is established in a year or two.
The city splits our bill into 3 periods per year, which is a little weird but ok...
Our household consumption has varied quite a bit since the pandemic due to changes in household composition (kids moving to uni etc) or us being more or less active in the garden.
I am happy that we used very little water this winter/spring, the least since 2022. I expect it to spike in the current April-August period as both kids have returned and I'll be doing all this pond stuff. But if I can keep it under 150,000L ($150) on the August bill, I'll be happy.
In the coming years, if I can use less in the Fall, Winter and Spring to "save up" for Summer, that would be nice but minimizing all seasons will always be the goal. That's why more trees are going to happen in the backyard at some point. Shade=Less watering!
In all, I'm happy with the only modest rise in our water consumption over the past few years.
#Home #PortAlberni #Water #Bills
