Tootfinder

Siirtoistutus auttaa palauttamaan uhanalaisia kääväkkäitä metsiin https://www.luke.fi/fi/uutiset/siirtoistutus-auttaa-palauttamaan-uhanalaisia-kaavakkaita-metsiin

Siirtoistutus auttaa palauttamaan uhanalaisia kääväkkäitä metsiin

Erinnert ihr euch noch an die dramatischen Wendungen und den Humor von "Dr. House"? 🥰Hinter dem Unterhaltungswert der Serie steckt eine Fundgrube für medizinische Ungereimtheiten. 😏
Zum Artikel: https://heise.de/-10424609?wt_mc=sm.re

Refuting Perfect Matchings in Spectral Expanders is Hard
Ari Biswas, Rajko Nenadov
https://arxiv.org/abs/2506.07700 https://arxiv.org…

Refuting Perfect Matchings in Spectral Expanders is Hard
This work studies the complexity of refuting the existence of a perfect matching in spectral expanders with an odd number of vertices, in the Polynomial Calculus (PC) and Sum of Squares (SoS) proof system. Austrin and Risse [SODA, 2021] showed that refuting perfect matchings in sparse $d$-regular \emph{random} graphs, in the above proof systems, with high probability requires proofs with degree $Ω(n/\log n)$. We extend their result by showing the same lower bound holds for \emph{all} $d$-regul…

Perfect Matching with Few Link Activations
Hugo Mirault, Peter Robinson, Ming Ming Tan, Xianbin Zhu
https://arxiv.org/abs/2506.06102 https://

Perfect Matching with Few Link Activations
We consider the problem of computing a perfect matching problem in a synchronous distributed network, where the network topology corresponds to a complete bipartite graph. The communication between nodes is restricted to activating communication links, which means that instead of sending messages containing a number of bits, each node can only send a pulse over some of its incident links in each round. In the port numbering model, where nodes are unaware of their neighbor's IDs, we give a rando…

Similarity Matching Networks: Hebbian Learning and Convergence Over Multiple Time Scales
Veronica Centorrino, Francesco Bullo, Giovanni Russo
https://arxiv.org/abs/2506.06134

Similarity Matching Networks: Hebbian Learning and Convergence Over Multiple Time Scales
A recent breakthrough in biologically-plausible normative frameworks for dimensionality reduction is based upon the similarity matching cost function and the low-rank matrix approximation problem. Despite clear biological interpretation, successful application in several domains, and experimental validation, a formal complete convergence analysis remains elusive. Building on this framework, we consider and analyze a continuous-time neural network, the \emph{similarity matching network}, for pri…

Diffusive Spreading Across Dynamic Mitochondrial Network Architectures
Keaton B. Holt, Lizzy Teryoshin, Elena F. Koslover
https://arxiv.org/abs/2506.05643 …

Diffusive Spreading Across Dynamic Mitochondrial Network Architectures
Networks of physical units can vary from a stationary set of spatially-embedded links to a collection of mobile agents that undergo transient social interactions. In living cells, mitochondria form architectures that span across these regimes, transitioning between fragmented, partly connected, and highly fused structures depending on cell type and state. Diffusive transport of biomolecular components through these networks helps to homogenize the mitochondrial population. Here we address the c…

Longer Lists Yield Better Matchings
Yuri Faenza, Aapeli Vuorinen
https://arxiv.org/abs/2506.06217 https://arxiv.org/pdf/2506.06217

Longer Lists Yield Better Matchings
Many centralized mechanisms for two-sided matching markets that enjoy strong theoretical properties assume that the planner solicits full information on the preferences of each participating agent. In particular, they expect that participants compile and communicate their complete preference lists over agents from the other side of the market. However, real-world markets are often very large and agents cannot always be expected to even produce a ranking of all options on the other side. It is t…

The Freedom Flotilla „Madleen” is projected to arrive in just a few hours at a coast in Gaza. If anything happens to @… or the other activists, the international community will never forgive the current Israeli government for it.
I wish and pray for your best, keep being the voice of our generation…

Freiheit für Greta Thunberg, Yasemin Acar und alle Aktivist*innen der Freedom Flotilla - Online-Petition
Humanitäre Hilfe ist kein Verbrechen! Am 1. Juni 2025 wurde das zivile Hilfsschiff Madleen der Freedom Flotilla Coalition auf dem Weg nach Gaza in internationalen Gewässern gewaltsam von der israelischen Armee gestoppt, geentert und seine Besatzung verschleppt. An Bord befanden sich ausschließlich unbewaffnete Freiwillige und dringend für den Gazastreifen benötigte humanitäre Hilfsgüter wie Babynahrung, Medizin und Prothesen für verletzte Kinder. Unter den Festgehaltenen ist neben Greta…

Ärzte untersuchen "Dr. House": Lehrreiche Kraft medizinischer Ungereimtheiten
Studie zur Serie "Dr. House" zeigt: Trotz Ungereimtheiten bietet die Serie wertvolle Einsichten für die Lehre und Diskussion in der medizinischen Ausbildung.

Noch einige der zuletzt hier besonders häufig geteilten #News:
Ärzte untersuchen "Dr. House": Lehrreiche Kraft medizinischer Ungereimtheiten