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@Techmeme@techhub.social
2026-09-07 05:01:19

Blockstream's Liquid Network halts new transactions after "purported white-hat hackers" withdrew ~4,000 of the 4,200 bitcoin held in its federation wallet (Omkar Godbole/CoinDesk)
coindesk.com/markets/…

@jerome@jasette.facil.services
2026-07-05 22:23:54

Editorial: The Human Rights Museum’s Nakba exhibit ignores the important context that I don’t want to hear about it
thebeaverton.com/2026/07/edito

@netzschleuder@social.skewed.de
2026-08-06 20:00:04

sp_high_school_new: High school dynamic contacts (2011-2012)
These datasets contain the temporal network of contacts between students in a high school in Marseilles, France. The first dataset gives the contacts of the students of three classes during 4 days in Dec. 2011, and the second corresponds to the contacts of the students of 5 classes during 7 days (from a Monday to the Tuesday of the following week) in Nov. 2012.
This network has 180 nodes and 45047 edges.
Tags: Soc…

sp_high_school_new: High school dynamic contacts (2011-2012). 180 nodes, 45047 edges. https://networks.skewed.de/net/sp_high_school_new#2012
@raiders@darktundra.xyz
2026-08-06 20:33:32

Geno Smith's red, sun glare-tackling contacts are a sight to see at Jets camp foxsports.com/articles/nfl/gen

@markhburton@mstdn.social
2026-08-07 08:02:58

Scottish Labour leadership contest a race to the bottom on climate, say Scottish Greens | Morning Star
morningstaronline.co.uk/articl

Thomas Smith withdrew from the Republican primary contest for Michigan’s eighth district last month.
On Tuesday, he won the nomination.
Unofficial results show Smith with more than 50% of the vote, according to the Associated Press,
defeating the man he endorsed,
anti-abortion activist Al Lemmo,
and the man Donald Trump endorsed,
former federal law enforcement officer Amir Hassan.
In a statement on Wednesday, Smith said he was “humbled and honored th…

@arXiv_mathDS_bot@mastoxiv.page
2026-08-05 08:01:42

Pattern formation: reactivity is not necessary for chemotaxis--driven instabilities
Angela Monti
arxiv.org/abs/2608.03685 arxiv.org/pdf/2608.03685 arxiv.org/html/2608.03685
arXiv:2608.03685v1 Announce Type: new
Abstract: A classical result by Neubert, Caswell and Murray states that reactivity of a spatially homogeneous equilibrium is a necessary condition for diffusion-driven (Turing) instability. In this work, we investigate whether the same conclusion remains valid in the presence of chemotaxis. We consider a general reaction--diffusion system coupled with a chemotactic flux and establish necessary conditions for asymptotic instability. We show that the classical requirement of reactivity can be relaxed when the chemotactic contribution is sufficiently strong. In particular, while reactivity remains necessary for Turing instability, it is not a necessary condition for chemotaxis-driven instability. From a computational viewpoint, we extend the matrix-oriented formulation developed for reaction--diffusion systems to the more general class of reaction--diffusion--chemotaxis models. The chemotactic transport term is discretized in a form compatible with the matrix-oriented approximation of the diffusion operator, yielding an efficient numerical framework for the simulation of chemotaxis-driven pattern formation. A geometric interpretation of the instability region is presented, highlighting the distinct roles played by diffusion and chemotaxis. The theoretical and numerical developments are illustrated through two representative examples: a chemotaxis-extended Schnakenberg model, showing how chemotaxis modifies classical Turing patterns, and a predator--prey model, demonstrating that chemotaxis alone can induce pattern formation in the absence of both reactivity and diffusion-driven instability. These results reveal a fundamental difference between diffusion-driven and chemotaxis-driven mechanisms of spatial self-organization and provide new theoretical and computational insights into the role of non-symmetric transport processes in biological pattern formation.
toXiv_bot_toot

@netzschleuder@social.skewed.de
2026-08-07 05:00:05

sp_high_school_new: High school dynamic contacts (2011-2012)
These datasets contain the temporal network of contacts between students in a high school in Marseilles, France. The first dataset gives the contacts of the students of three classes during 4 days in Dec. 2011, and the second corresponds to the contacts of the students of 5 classes during 7 days (from a Monday to the Tuesday of the following week) in Nov. 2012.
This network has 180 nodes and 45047 edges.
Tags: Soc…

sp_high_school_new: High school dynamic contacts (2011-2012). 180 nodes, 45047 edges. https://networks.skewed.de/net/sp_high_school_new#2012
@netzschleuder@social.skewed.de
2026-06-07 03:00:04

cintestinalis: Tadpole larva brain (C. intestinalis)
Entire connectivity matrix for the complete brain of a larva of Ciona intestinalis. Each directed edge represents a synaptic connection from pre-synaptic cell i to post-synaptic cell j (may not be a neuron). Edge weights represent the cumulative depth of presynaptic contacts in µm.
This network has 205 nodes and 2903 edges.
Tags: Biological, Connectome, Weighted

cintestinalis: Tadpole larva brain (C. intestinalis). 205 nodes, 2903 edges. https://networks.skewed.de/net/cintestinalis
@netzschleuder@social.skewed.de
2026-09-05 18:00:05

contact: Haggle human proximity network (2006)
A network of human proximities, as measured by carried wireless devices. Each node represents a person, and an edge denotes when two people were within a certain proximity of each other, as measured by a wireless protocol (Bluetooth or Wifi). The edges are timestamped.
This network has 274 nodes and 28244 edges.
Tags: Social, Offline, Unweighted, Timestamps

contact: Haggle human proximity network (2006). 274 nodes, 28244 edges. https://networks.skewed.de/net/contact