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@simon_brooke@mastodon.scot
2026-06-18 10:15:03

A UK MP reported a constituent to the police for the 'crime' of writing to him about #Gaza
What's worse, she was arrested at 04:33 -- which presumably means they went into her house in the middle of the night to arrest her. I've had this happen to me fifty years ago -- over a plan to ship schoolbooks to

@hex@kolektiva.social
2026-05-18 11:32:21

Oh, here's one of our docs for anyone in PNW. It's incomplete (also, from 2018):
Running list of disaster risks in the Pacific Northwest:
EARTHQUAKE (Three main faults - Cascadia, Seattle, )
PANDEMIC FLU (Global risk)
Especially high in Seattle compared to many other large US cities due to the high number of international flights and international organizations based in the Seattle.
STORMS
HEAT WAVES
Seattle lacks a familiarity with extreme heat. Less than half of people have air conditioning. Growing wealth inequity, homelessness, and addiction increases the risks posed by high temperatures.
VOLCANIC ERUPTION
Mount. Rainier.
WILDFIRES & WILDFIRE SMOKE
“Harvard University researchers, in collaboration with colleagues at Yale University, have created a watch list of hundreds of counties in the western United States at the highest risk of exposure to dangerous levels of pollution from wildfires in the coming decades. Among them, heavily populated counties such as San Francisco County, Calif., King County, Wash., Alameda County, Calif., and Contra Costa County, Calif., are projected to face the highest level of risk of wildfire smoke exposure in the coming decades.” [source]

@PaulWermer@sfba.social
2026-05-18 21:52:03

I keep seeing posts about how wonderful the Democratic Party is, how their polices are so good, their messaging is fine.
This does not accord with the latest NYTImes/Siena poll results, where 44% of DEMOCRATS are dissatisfied with the party. Overall voters, 70% are dissatisfied.
COMPARE TO GOP numbers: while #POTUS is not held in esteem by most, only 15% of GOP disapprove, and only 23% of…

@paulwermer@sfba.social
2026-05-18 21:52:03

I keep seeing posts about how wonderful the Democratic Party is, how their polices are so good, their messaging is fine.
This does not accord with the latest NYTImes/Siena poll results, where 44% of DEMOCRATS are dissatisfied with the party. Overall voters, 70% are dissatisfied.
COMPARE TO GOP numbers: while #POTUS is not held in esteem by most, only 15% of GOP disapprove, and only 23% of…

@arXiv_physicsfludyn_bot@mastoxiv.page
2026-05-19 08:29:02

A discrete Boltzmann model with state-dependent power-law relaxation time for nonequilibrium transport in compressible flows
Demei Li, Zhongyi He, Huilin Lai, Yanbiao Gan, Hailong Liu, Pengfei Lin
arxiv.org/abs/2605.18216 arxiv.org/pdf/2605.18216 arxiv.org/html/2605.18216
arXiv:2605.18216v1 Announce Type: new
Abstract: Thermodynamic nonequilibrium effects play a central role in momentum and energy transport in compressible flows. In conventional BGK kinetic models, the relaxation time $\tau$ is taken as a constant, which neglects the dependence of the relaxation process on local macroscopic states. To overcome this limitation, we develop a discrete Boltzmann model with a density- and temperature-dependent power-law relaxation time, termed DTRT-DBM, in which $\tau=\tau_0(\rho/\rho_0)^a(T/T_0)^b$. This formulation extends the discrete Boltzmann framework to flows with spatially varying nonequilibrium intensity. The model is validated by the Sod shock tube and by analytical solutions for viscous stress and heat flux, demonstrating accurate recovery of both macroscopic wave structures and nonequilibrium quantities across shock waves, rarefaction waves, and contact discontinuities. On this basis, phase diagrams of viscous stress and heat flux are constructed to examine how these quantities depend on the power-law exponents $a$ and $b$. The extrema of these quantities depend exponentially on the model parameters and exhibit regime-dependent behaviour. The roles of $a$ and $b$ are not symmetric: the nonequilibrium response is more sensitive to $a$ when density gradients dominate, but more sensitive to $b$ when temperature gradients dominate. Within the parameter range and flow configurations examined here, higher-order viscous stress increases the growth rate of the total viscous-stress extremum, whereas higher-order heat flux reduces the growth rate of the total heat-flux extremum. These results show that the proposed model can capture different higher-order nonequilibrium responses in compressible flows and provides a framework for the modelling and analysis of multiscale nonequilibrium processes.
toXiv_bot_toot

@netzschleuder@social.skewed.de
2026-05-18 12:00:05

sp_hypertext: Hypertext 2009 dynamic contact network
The temporal network of contacts among attendees of the ACM Hypertext 2009 conference, which spanned 2.5 days of time.
This network has 113 nodes and 20818 edges.
Tags: Social, Offline, Unweighted, Temporal
networks.skewed.de/net/sp_hype…

sp_hypertext: Hypertext 2009 dynamic contact network. 113 nodes, 20818 edges. https://networks.skewed.de/net/sp_hypertext#contacts
@Techmeme@techhub.social
2026-05-17 06:01:26

Experts: Stuxnet-linked Fast16 malware, designed to subvert nuclear weapons testing simulations, was likely part of a campaign to slow Iran's nuclear ambitions (Kim Zetter/ZERO DAY)
zetter-zeroday.com/experts-con

@netzschleuder@social.skewed.de
2026-07-19 07:00:05

sp_hypertext: Hypertext 2009 dynamic contact network
The temporal network of contacts among attendees of the ACM Hypertext 2009 conference, which spanned 2.5 days of time.
This network has 113 nodes and 2196 edges.
Tags: Social, Offline, Unweighted, Temporal
networks.skewed.de/net/sp_hype…

sp_hypertext: Hypertext 2009 dynamic contact network. 113 nodes, 2196 edges. https://networks.skewed.de/net/sp_hypertext#intervals
@arXiv_physicsfludyn_bot@mastoxiv.page
2026-05-19 08:06:08

High-Order ADER-DG Hydrodynamics with ExaHyPE: Implementation, Validation, and Astrophysical Benchmarking
Andr\'es Mauricio Su\'arez Mantilla, Leonardo Casta\~neda Colorado
arxiv.org/abs/2605.17132 arxiv.org/pdf/2605.17132 arxiv.org/html/2605.17132
arXiv:2605.17132v1 Announce Type: new
Abstract: We describe a high-order ADER-DG solver for the compressible Euler equations within the ExaHyPE framework. The implementation combines a high-order ADER-DG polynomial representation, a local space-time DG predictor, adaptive mesh refinement, and an a posteriori subcell finite-volume limiter. We test the code on a deliberately mixed set of one- and two-dimensional problems: a strong-shock Sod-type problem, the Shu-Osher shock-entropy interaction, the Woodward-Colella blast wave, a contact-driven vortex sheet, and a shock-interface interaction. The one-dimensional cases recover the expected Euler wave patterns and show clear order-dependent gains in smooth and oscillatory regions. The two-dimensional cases probe a different part of the method, namely contact preservation, shear-driven roll-up, baroclinic vorticity deposition, and Richtmyer-Meshkov-type growth. In these tests the high-order update gives the expected resolution away from discontinuities, whereas the subcell limiter keeps the calculation stable near shocks and steep interfaces. The resulting code provides a reproducible ExaHyPE implementation for idealised inviscid, non-relativistic flows in which shocks, contacts, and multidimensional interfaces are the dominant features.
toXiv_bot_toot

@netzschleuder@social.skewed.de
2026-07-19 02:00:05

sp_hypertext: Hypertext 2009 dynamic contact network
The temporal network of contacts among attendees of the ACM Hypertext 2009 conference, which spanned 2.5 days of time.
This network has 113 nodes and 2196 edges.
Tags: Social, Offline, Unweighted, Temporal
networks.skewed.de/net/sp_hype…

sp_hypertext: Hypertext 2009 dynamic contact network. 113 nodes, 2196 edges. https://networks.skewed.de/net/sp_hypertext#intervals