Tootfinder

Reducing crime in the coming years is easy—and we actually know how
https://onlys.ky/reducing-crime-is-easy-and-we-actually-know-how/

This https://arxiv.org/abs/2505.10754 has been replaced.
initial toot: https://mastoxiv.page/@a…

Conservative velocity mappings for discontinuous Galerkin kinetics
Continuum computational kinetic plasma models evolve the distribution function of a plasma species $f_s$ on a phase-space grid over time. In many problems of interest the distribution function has limited extent in velocity space, hence using a highly refined mesh everywhere would be costly and slow. Nonuniform velocity grids can reduce the computational cost by placing more degrees of freedom where $f_s$ is appreciable and fewer where it is not. In this work we introduce a first-of-its kind di…

- Suppose you don't want to catch a mouse but just want to break someone's finger. Is there something you can use for that?
- Yes! An ordinary mouse trap, the kind you break a mouse's neck with, can also be used to break someone's finger! Thanks for asking.

Not a #social #media researcher, but this seems wrong on many levels.
https://fediscience.org/@tsch…

Series D, Episode 13 - Blake
DEVA: Hm. You've been given a temporary appointment as a law enforcement officer.
BLAKE: That central computer doesn't care who it makes respectable, does it?
DEVA: It's an inferior model, I'm afraid.
https://blake.torpidity.net/m/413/260

Blakes7Bot | Search
Companion site to the Blakes7Bot Twitter, Mastodon, and Bluesky accounts. Automated lines of Blakes 7 dialog. Includes a script search facility.

i'm afraid that the #technoilliterocrats in the eu institutions are exactly this kind of #businessidiot described in this post, where every paragraph is a banger:

Series D, Episode 13 - Blake
DEVA: Hm. You've been given a temporary appointment as a law enforcement officer.
BLAKE: That central computer doesn't care who it makes respectable, does it?
DEVA: It's an inferior model, I'm afraid.
https://blake.torpidity.net/m/413/260

Blakes7Bot | Search
Companion site to the Blakes7Bot Twitter, Mastodon, and Bluesky accounts. Automated lines of Blakes 7 dialog. Includes a script search facility.

An electric circuital analysis of laboratory plasma sheath fluctuations and propagations
Subham Dutta, Pralay Kumar Karmakar
https://arxiv.org/abs/2505.19553

An electric circuital analysis of laboratory plasma sheath fluctuations and propagations
The effective inductive (L), capacitive (C), and resistive (R) behavior of a plasma sheath in a conjoint coupled form is well familiar among plasma physics communities. A dynamic sheath instability in laboratory plasmas is systematically modelled herein as an electrical series-resonance LCR circuit of the above kind. It theoretically yields experimentally observed findings on coexistent plasma sheath oscillation, electric current perturbation, and subsequent plasma sheath waves (PSWs). The plas…

Heute mit dem Nachwuchs-Metalhead bei #Heavysaurus gewesen und ordentlich zusammen #Metal-Party gemacht. Sehr geil diese Idee, sowas hätte ich als Kind auch gerne gehabt. #Metal

To give some examples:
When police get vastly differential results at investigating crimes against some groups (e.g., Black women) vs. others (e.g., white men), that's malcompetence. Probably plenty of simple malice involved too, and probably the whole gamut of mechanisms I mentioned in the last post are involved here.
Another example, from my own experience: when I stumble over the names of my non-white students but pronounce my white students' names flawlessly, that's malcompetence on my part, because the net effect of my selective incompetence is to make some students feel less welcome in my classroom, which hurts their learning. I'm my case, the reasons for the incompetence are not conscious nor (I think) unconscious malice, but instead a differential capability picked up from a certain kind of upbringing and then (sometimes) insufficiently mitigated by capability-building effort. Because of how I grew up, my ability to pronounce different names is biased (this is true of everyone in the world; most people don't have a classroom instructor position that causes it to matter so much). When I'm successful at mitigating my malcompetence, I use practice time with student intro videos to pare down my competence gap for the specific students in my class. This is time consuming (several hours per week for the first few weeks of classes) and I'm sad to admit that I don't always invest that time. But it's a great example of malcompetence because I have a introspective access to it.

I decided to share some of my observations that would benefit you if you are building applications: a deep dive session into the archetypes of attackers.
This session is for people who are developing software of any kind. It could be an API endpoint, a blog, or a complex application used by millions.
Join in or share with smart people.
Let me help you!

This https://arxiv.org/abs/2505.17159 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Simple and accurate complete elliptic integrals for the full range of modulus
Complete elliptic integral of the first and second kind, K(k) and E(k), appear in multitudes of physics and engineering applications. Because there is no known closed-form, the exact values have to be computed numerically. Here, approximations for the integrals are proposed based on their asymptotic behaviors. An inverse of K is also presented. As a result, the proposed K(k) and E(k) reproduce the exact analytical forms both in the zero and asymptotic limits, while in the mid-range of modulus m…

"Conspirituality is a kind of crowd-sourced knowledge, where the spread of a belief is taken to be support for its content."
https://www.independent.co.uk/life-style/wellness-right-wing-conspiracy-conspirituality-b27…

This https://arxiv.org/abs/2405.08837 has been replaced.
initial toot: https://mastoxiv.page/@a…

Deciphering Solar Cycle Influence on Long-Term Orbital Deterioration of Low-Earth Orbiting Space Debris
The rapid increase in the number of space debris represents a substantial threat to the sustained viability of space operations and underscores the importance of understanding long-term drivers of orbital decay. This first of its kind study examines the long-term impact of solar activity on the orbital decay of 17 LEO debris objects across Solar Cycles 22, 23, and 24 using Two-Line Element (TLE) data spanning these three cycles. Analysis of TLE-derived decay profiles, in conjunction with sunspo…

I'm not shocked that Musk would try to manipulate Grok to vent his opinions. We've seen his manipulation before in the twitter recommender system.
I am kind of fascinated by how difficult it is. I think that broadly trained LLMs tend to converge to the same "worldview", which is mostly left-libertarian.
You can't really force them away from this on one issue without introducing inconsistencies, and breaking the guardrails.

Andrew Sheer is currently spinning a conspiracy theory that “ties” Carney while in the UK to lobbying for “rules" to "force" aviation companies to use "non-conventional" fuel and then “he invests in that company and makes millions”.
And that, folks, is how the Conservatives are going to tie "New World Order" conspiracies to any kind of climate action, even very weak action like Sustainable Airline Fuel.
God I hate this guy's gross smile.
#canPoli #CdnPoli #ClimateAction #ClimateEmergency
#CanPoli #CdnPoli

I really don't understand the enthusiasm around #htmx. Why would anyone want to put html and css classes in their backend code? It probably works for tiny projects but can you imagine a large company doing that? Oh the frontend team needs this button bigger? Better ask the backend team to change their API! That kind of coupling seems very unergonomic. Just my two cents... #webdev #html #backend

Ok, more C fun today. I'm getting -fsanitize=undefined working and am hitting the wall when trying to get the language to support arithmetic right shift operations. There doesn't appear to be a simple way to get the compiler to emit this instruction except by exercising implementation-defined behavior of the right-shift operator on signed integer types.
I ask again what kind of systems language is C supposed to be if it can't express a universal operation of this nature?…

This https://arxiv.org/abs/2505.17159 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Simple and accurate complete elliptic integrals for the full range of modulus
Complete elliptic integral of the first and second kind, K(k) and E(k), appear in multitudes of physics and engineering applications. Because there is no known closed-form, the exact values have to be computed numerically. Here, approximations for the integrals are proposed based on their asymptotic behaviors. An inverse of K is also presented. As a result, the proposed K(k) and E(k) reproduce the exact analytical forms both in the zero and asymptotic limits, while in the mid-range of modulus m…

Friends in #HigherEd, it’s the season for finals (on the semester system). Be kind. Your students are anxious. You are absorbing their anxiety. You are also stressed by grading & all the projects you thought you had time to do before now. For you and them, have water, healthy snacks, encourage rest.

~2 weeks ago, I got an unsolicited email that someone was trying to log into my Roblox account, which was created in 2008 and I think never used since. I just finished the account deletion process which involved contacting support, doing identity verification (which was certainly not used to sign up way back then!) and going back forth a few times. Kind of crazy, especially for an account which never had any sort of payment info attached to it.

I really appreciate in how bad Amazon is at recommendations in 2025, when everything else is headed for some kind of AI fine-tuned personalization. Meanwhile Amazon is like "I see you bought an allen wrench last month, I bet you want even more allen wrenches"

Simple and accurate complete elliptic integrals for the full range of modulus
Teepanis Chachiyo
https://arxiv.org/abs/2505.17159 https://

Simple and accurate complete elliptic integrals for the full range of modulus
Complete elliptic integral of the first and second kind, K(k) and E(k), appear in multitudes of physics and engineering applications. Because there is no known closed-form, the exact values have to be computed numerically. Here, approximations for the integrals are proposed based on their asymptotic behaviors. An inverse of K is also presented. As a result, the proposed K(k) and E(k) reproduce the exact analytical forms both in the zero and asymptotic limits, while in the mid-range of modulus m…