Tootfinder

Mutale Nkonde: Building the AI Future We Want to Live In
Event on December 5th at the Toronto Reference Library
https://www.eventbrite.ca/e/mutale-nkonde-building-the-ai-future-we-want-to-live-in-tickets-178232…

On Setting Up a Raspberry Pi Off-grid PV-Powered Server (2014) - How I set up a Raspberry Pi (Model B then B ) after the SheevaPlug. ~1.6W consumption typical, 400x less than my original server rack! #RPi #frugal #offGrid

On Setting Up a Raspberry Pi Off-grid PV-Powered Server (2014)
How I set up a Raspberry Pi (Model B then B+) after the SheevaPlug. 1.6W consumption typical, 400x less than my original server rack! #RPi #frugal #offGrid

Is it because they are eating less or because they can't afford food after buying Ozempic?
"According to new research, the medications are associated with meaningful reductions in how much households spend on food, both at the grocery store and at restaurants."
https://news.cornell.edu/stories/2025/12/ozempic-changing-foods-americans-buy

Anthropic open sources a method to score AI model political evenhandedness; Gemini 2.5 Pro got 97%, Grok 4 96%, Claude Opus 4.1 95%, GPT-5 89%, and Llama 4 66% (Ina Fried/Axios)
https://www.axios.com/2025/11/13/anthropic-bot-bias-data

Anthropic tries to measure bot bias
There's no consensus over what constitutes political bias in AI systems.

I bought a pair of 25' Intellitron stainless steel whip antennas from GigaParts while they were on sale ("two is one and one is none" and the second one tipped me me into "free shipping" making its marginal cost pretty low). On removing them from the packages, however, loose roll pins fell out, and the bases fell off the antennas. Both of them.
A roll pin is an inappropriate fastener to use to connect two concentric thin-walled tubes, so this is a design failure. And the roll pins are …

Concentrated sets and the Hurewicz property
Valentin Haberl, Piotr Szewczak, Lyubomyr Zdomskyy
https://arxiv.org/abs/2511.09320 https://arxiv.org/pdf/2511.09320 https://arxiv.org/html/2511.09320
arXiv:2511.09320v1 Announce Type: new
Abstract: A set of reals $X$ is $\mathfrak{b}$-concentrated if it has cardinality at least $\mathfrak{b}$ and it contains a countable set $D\subseteq X$ such that each closed subset of $X$ disjoint with $D$ has size smaller than $\mathfrak{b}$. We present ZFC results about structures of $\mathfrak{b}$-concentrated sets with the Hurewicz covering property using semifilters. Then we show that assuming that the semifilter trichotomy holds, then each $\mathfrak{b}$-concentrated set is Hurewicz and even productively Hurewicz. We also show that the appearance of Hurewicz $\mathfrak{b}$-concentrated sets under the semifilter trichotomy is somewhat specific and the situation in the Laver model for the consitency of the Borel Conjecture is different.
toXiv_bot_toot

A model for transport of soluble surfactants in two-phase flows
Suhas S. Jain
https://arxiv.org/abs/2510.10857 https://arxiv.org/pdf/2510.10857

A model for transport of soluble surfactants in two-phase flows
In this work, we propose a novel transport model for soluble surfactants in two-phase flows. In a two-phase flow, the soluble surfactants can adsorb/desorb from/into the bulk of any of the phases to the interface and can modify the interface properties. This results in sharp gradients in the surfactant concentration on the interface and also between the two phases in the bulk when there is selective adsorption/desorption, presenting a serious challenge for the numerical simulations. To overco…

Achieving Coordination in Non-Cooperative Joint Replenishment Games
Junjie Luo, Changjun Wang
https://arxiv.org/abs/2510.10929 https://arxiv.org/pdf/2510.1…

Achieving Coordination in Non-Cooperative Joint Replenishment Games
We analyze an infinite-horizon deterministic joint replenishment model from a non-cooperative game-theoretical approach. In this model, a group of retailers can choose to jointly place an order, which incurs a major setup cost independent of the group, and a minor setup cost for each retailer. Additionally, each retailer is associated with a holding cost. Our objective is to design cost allocation rules that minimize the long-run average system cost while accounting for the fact that each retai…

Detailed Kinetic Model for Combustion of NH3/H2 Blends
Yu-Chi Kao, Anna C. Doner, Timo T. Pekkanen, Chuangchuang Cao, Sunkyu Shin, Alon Grinberg Dana, Yi-Pei Li, William H. Green
https://arxiv.org/abs/2510.09860

Detailed Kinetic Model for Combustion of NH3/H2 Blends
Ammonia is a promising zero-carbon fuel for industrial and transport applications, but its combustion is hindered by flame instabilities, incomplete oxidation, and the formation of nitrogen oxides. Accurate and detailed kinetic models are critical for designing optimal burners and engines. Despite numerous mechanisms published in recent years, large discrepancies remain between model predictions and experimental data, particularly for NOx species. In this work, we have reviewed the literature t…

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