Tootfinder

Ionic emissions and activity evolution in comet C/2020 F3 (NEOWISE): Insights from long-slit spectroscopy and photometry
K. Aravind, E. Jehin, S. Hmmidouch, M. Vander Donckt, S. Ganesh, P. Rousselot, P. Hardy, D. Sahu, J. Manfroid, Z. Benkhaldoun
https://arxiv.org/abs/2507.21707

Ionic emissions and activity evolution in comet C/2020 F3 (NEOWISE): Insights from long-slit spectroscopy and photometry
Comet C/2020 F3 (NEOWISE) was the brightest comet in the northern hemisphere since C/1995 O1 (Hale-Bopp), providing a unique opportunity to study its composition and spatial distribution of emissions. We conducted narrow-band photometry and long-slit low-resolution spectroscopy to monitor the comet's activity and compositional evolution over several weeks post-perihelion. Narrow-band images (OH, NH, CN, C$_2$, C$_3$, BC, GC, RC) and broad-band images (B, V, Rc, Ic) were acquired with TRAPPIST-N…

Good Morning #Canada
OTD in 1977, Tim Severin landed on Peckford Island, Newfoundland. Severin had set sail from Ireland on May 17th with a five-man crew in a boat built using only techniques and materials available in sixth-century Ireland. The arduous 7,300km journey was meant to prove that St. Brendon had discovered North America almost 1,000 years before Columbus. I'm sure we were polite and didn't smirk when we welcomed him to Canada.
#CanadaIsAwesome #Myth
https://lookingnorth.blog/2020/07/the-brendan-voyage/

Unredacted court docs in Smartmatic's Fox News lawsuit show how Maria Bartiromo and other Fox hosts privately aided Trump's bid to overturn the 2020 US election (Isabella Simonetti/Wall Street Journal)
https://www.wsj.com/business/media/smartma

Quotegraph: A Social Network Extracted from Millions of News Quotations
Marko \v{C}uljak, Robert West, Andreas Spitz, Akhil Arora
https://arxiv.org/abs/2507.17626 https://

Quotegraph: A Social Network Extracted from Millions of News Quotations
We introduce Quotegraph, a novel large-scale social network derived from speaker-attributed quotations in English news articles published between 2008 and 2020. Quotegraph consists of 528 thousand unique nodes and 8.63 million directed edges, pointing from speakers to persons they mention. The nodes are linked to their corresponding items in Wikidata, thereby endowing the dataset with detailed biographic entity information, including nationality, gender, and political affiliation. Being derived…

Will Musicians Ever Rule the World?
https://muz4now.com/2020/will-musicians-ever-rule-the-world/

Will Musicians Ever Rule the World?
Stan Stewart - @muz4now

Quantum optical model of an artificial neuron
Vivek Mehta, Utpal Roy
https://arxiv.org/abs/2507.17349 https://arxiv.org/pdf/2507.17349

Quantum optical model of an artificial neuron
Magnini \emph{et al.} [\emph{Mach. Learn.: Sci. Technol. 1 (2020) 045008}] recently introduced a qubit-based model of an artificial neuron, along with its applications. The design of its quantum circuit is pivotal for effective implementation. In this context, we present two quantum circuit synthesis algorithms tailored for the realisation of the quantum neuron. Comprehensive circuit simulations are conducted, and the resulting performance is assessed using the circuit cost metric. Additionally…

gcor: A Python Implementation of Categorical Gini Correlation and Its Inference
Sameera Hewage
https://arxiv.org/abs/2506.19230 https://

gcor: A Python Implementation of Categorical Gini Correlation and Its Inference
Categorical Gini Correlation (CGC), introduced by Dang et al. (2020), is a novel dependence measure designed to quantify the association between a numerical variable and a categorical variable. It has appealing properties compared to existing dependence measures, such as zero correlation mutually implying independence between the variables. It has also shown superior performance over existing methods when applied to feature screening for classification. This article presents a Python implementa…

London-based Definely, whose AI tools help law firms draft and review legal contracts, raised a $30M Series B led by Revaia, with Clio and others participating (Cate Lawrence/Tech.eu)
https://tech.eu/2025/06/09/uk-legaltech-de…

UK legaltech Definely secures $30M to boost global reach and AI development
UK legaltech company Definely has raised $30 million in Series B funding to accelerate its global expansion and AI product roadmap. This additional funding brings the total amount raised by Definely since its inception to $40 million. Launched in 2020 by Nnamdi Emelifeonwu and Feargus MacDaei, Definely was born from lived experience, including that of co-founder MacDaeid, who is registered blind after being diagnosed with a degenerative eye condition at age 11. Throughout his life, he consiste…

Quasi-periodic oscillations and reflection feature evolution in 4U 1630-47 observed with Insight-HXMT
Jiashi Chen, Wei Wang
https://arxiv.org/abs/2506.19285

Quasi-periodic oscillations and reflection feature evolution in 4U 1630-47 observed with Insight-HXMT
The Galactic black hole (BH) X-ray binary 4U 1630-47 went into a new outburst in 2021 after $\sim$ 600 days from its 2020 outburst. We perform a detailed analysis of quasi-periodic oscillations and spectral evolutions during its 2021 outburst based on \textit{Insight}-HXMT observations. The main science aims to study the reflection features evolution of this accreting black hole using the observations of detecting quasi-periodic oscillations (QPOs) and quasi-regular modulations (QRMs). The QPOs…

Jährlicher Zubau und Rückbau der #Windenergieleistung in Deutschland. Stand: 09.08.2025.
Summen der Inbetriebnahmen und Stilllegungen pro Jahr.
Der Datenbestand enthält ggf. unplausible Datensätze.
Anmerkung: Erste Versuche einer #Datenanalyse. 😁 Hinweise gerne. Wü…

Related to my last boost, still annoyed this DID NOT make it into WCAG 2.2:
3.2.7 Hidden Controls (Level AA): Controls needed to progress or complete a process are visible at the time they are needed without requiring pointer hover or keyboard focus, or a mechanism is available to make them persistently visible.
https://www.…

Newly unredacted documents in the Smartmatic-Fox News defamation case show former host Jeanine Pirro, now a US attorney, bragging about aiding Trump and the GOP (Jeremy Barr/Washington Post)

Jeanine Pirro bragged about helping Trump and GOP while a Fox News host
The former Fox host complained of “CENSORSHIP” by Fox over her coverage of the 2020 election, according to newly unredacted documents in the Smartmatic defamation case.

LA was a dress rehearsal for what Trump really has planned - Raw Story
https://www.rawstory.com/raw-investigates/trump-lo…

LA was a dress rehearsal for what Trump really has planned
Trump: Well, we’re going to have troops everywhere.Reporter: What’s the bar for sending in the Marines?Trump: The bar is what I think it is.The 2026 and 2028 elections may have just gotten a lot more distant. First, the backstory.It was around 2 a.m. on July 15, 2020, when Mark Pettibone, then 29, w...

Another useful article:
"What to know about Trump’s deployment of National Guard troops to LA protests"
https://apnews.com/article/insurrection-act-trump-troops-newsom-military-national-guard-…

What to know about Trump's deployment of National Guard troops to LA protests
President Donald Trump says he’s deploying 2,000 California National Guard troops to Los Angeles to respond to immigration protests, over the objections of California Gov. Gavin Newsom. It’s not the first time Trump has activated the National Guard to quell protests. In 2020, he asked governors of several states to send troops to Washington, D.C. to respond to demonstrations that arose after George Floyd was killed by Minneapolis police officers. Here are some things to know about when and …

In late 2020, I wrote an odd little musing of thoughts. Just re-read it today, and I like these lines:
"Love must have compassion and empathy at its beck and call.
As uncomfortable as truth can so often be, it remains true without any believers, without any champions arguing its case.
Pain is, heartrendingly, unavoidable. Misery is an option we can choose willfully by thinking we know everything and have nothing to learn."

Midas Touch but for Pain
some people have the ability to diminish all they touch

Rural #Colorado town with less than 10,000 population has hyped up #cowboy #cops whose excessive force incidents are on dramatic rise, far outpacing #Denver

Enjoying Non-linearity in Multinomial Logistic Bandits
Pierre Boudart (PSL, DI-ENS, Inria), Pierre Gaillard (PSL, DI-ENS, Inria), Alessandro Rudi (PSL, DI-ENS, Inria)
https://arxiv.org/abs/2507.05306

Enjoying Non-linearity in Multinomial Logistic Bandits
We consider the multinomial logistic bandit problem, a variant of generalized linear bandits where a learner interacts with an environment by selecting actions to maximize expected rewards based on probabilistic feedback from multiple possible outcomes. In the binary setting, recent work has focused on understanding the impact of the non-linearity of the logistic model (Faury et al., 2020; Abeille et al., 2021). They introduced a problem-dependent constant $κ_*$, that may be exponentially larg…

SETI@home: Data Acquisition and Front-End Processing
Eric J. Korpela (Space Sciences Laboratory, University of California, Berkeley), David P. Anderson (Space Sciences Laboratory, University of California, Berkeley), Jeff Cobb (Space Sciences Laboratory, University of California, Berkeley), Matt Lebofsky (Space Sciences Laboratory, University of California, Berkeley), Wei Liu (Space Sciences Laboratory, University of California, Berkeley), Dan Werthimer (Space Sciences Laboratory, Univ…

SETI@home: Data Acquisition and Front-End Processing
SETI@home is a radio Search for Extraterrestrial Intelligence (SETI) project, looking for technosignatures in data recorded at multiple observatories from 1998 to 2020. Most radio SETI projects analyze data using dedicated processing hardware. SETI@home uses a different approach: time-domain data is distributed over the Internet to $\gt 10^{5}$ volunteered home computers, which analyze it. The large amount of computing power this affords ($\sim 10^{15}$ floating-point operations per second (FPO…

Sharp Hardy and spectral gap inequalities on special irreversible Finsler manifolds
S\'andor Kaj\'ant\'o
https://arxiv.org/abs/2508.13793 https://

Sharp Hardy and spectral gap inequalities on special irreversible Finsler manifolds
The sharpness of various Hardy-type inequalities is well-understood in the reversible Finsler setting; while infinite reversibility implies the failure of these functional inequalities, cf. Kristály, Huang, and Zhao [Trans. Am. Math. Soc., 2020]. However, in the remaining case of irreversible manifolds with finite reversibility, there is no evidence on the sharpness of Hardy-type inequalities. In fact, we are not aware of any particular examples where the sharpness persists. In this paper we p…

Evolution of Rayleigh-Taylor turbulence under vorticity and strain-rate control
Dongxiao Zhao, Gaojin Li
https://arxiv.org/abs/2506.07012 https://

Evolution of Rayleigh-Taylor turbulence under vorticity and strain-rate control
We investigate the role of small-scale structures in turbulent Rayleigh-Taylor (RT) flows through the application of preferential flow control targeting high vorticity or high strain-rate regions (Buzzicotti et al. 2020). Through numerical simulations, we analyze the effects of flow control on RT statistics, mixing, and anisotropy behavior. Our results reveal that eliminating intense small-scale motion leads to the formation of more organized and coherent flow structures, with reduced mixing an…

Optimal Portfolio Construction -- A Reinforcement Learning Embedded Bayesian Hierarchical Risk Parity (RL-BHRP) Approach
Shaofeng Kang, Zeying Tian
https://arxiv.org/abs/2508.11856

Optimal Portfolio Construction -- A Reinforcement Learning Embedded Bayesian Hierarchical Risk Parity (RL-BHRP) Approach
We propose a two-level, learning-based portfolio method (RL-BHRP) that spreads risk across sectors and stocks, and adjusts exposures as market conditions change. Using U.S. Equities from 2012 to mid-2025, we design the model using 2012 to 2019 data, and evaluate it out-of-sample from 2020 to 2025 against a sector index built from exchange-traded funds and a static risk-balanced portfolio. Over the test window, the adaptive portfolio compounds wealth by approximately 120 percent, compared with 1…

A senior US official says the recent hack of the US federal court filing system is a continuation of "rudimentary security issues" persisting since 2020 (John Sakellariadis/Politico)
https://www.politico.com/news/2025/08/12/federal-courts-hack-se…

Kommenden Dienstag 8.7.25, 19:30 Uhr, ist es so weit:
Michael Blume in der Manufaktur
Sturmflut der Lügen - Wie wir unsere Gesellschaft gegen Desinformation Wappnen
@…
#schorndorf

Superpolynomial convergence in the Riemann Rearrangement Theorem
Stefan Steinerberger
https://arxiv.org/abs/2508.02489 https://arxiv.org/pdf/2508.02489

Superpolynomial convergence in the Riemann Rearrangement Theorem
Let $x \in \mathbb{R}$ be arbitrary and consider the `greedy' approximation of $x$ by signed harmonic sums: given $a_n = \sum_{k \leq n} \varepsilon_k/k$ with $\varepsilon_k \in \left\{-1,1\right\}$, we set $\varepsilon_{n+1} = 1$ if $a_n \leq x$ and $\varepsilon_{n+1} = -1$ otherwise. Bettin-Molteni-Sanna showed (Adv. Math. 2020) that this procedure has remarkable approximation properties: for almost all $x \in \mathbb{R}$ one has superpolynomial convergence in the sense that for every $k \in …

I haven't visited the U.S. since January 2020 (business travel prior to retirement), but my social media commentary, like the example above, means I won't be traveling there anytime soon. I'm likely to be "disappeared" once they get access to my phone.
Thankfully, I'm not remotely interested in going there.
#ElbowsUp

Bis zu 68 Prozent mehr - Seit 2020: Diese Lebensmittel wurden am teuersten! #News #Nachrichten

On the existence of negative moments for some non-colliding particle systems and its application
Minh Thang Do, Hoang Long Ngo
https://arxiv.org/abs/2507.04022

On the existence of negative moments for some non-colliding particle systems and its application
We consider a class of $d$-dimensional stochastic differential equations that model a non-colliding random particle system. We provide a sufficient condition, which does not depend on the dimension $d$, for the existence of negative moments of the gap between two particles, and then apply this result to study the strong rate of convergence of the semi-implicit Euler-Maruyama approximation scheme. Our finding improves a recent result of Ngo and Taguchi (Annals of Applied Probability, 2020).

Photoemission Chronoscopy of the Iodoalkanes
Christian A. Schr\"oder, Maximilian Pollanka, Pascal Freisinger, Matthias Ostner, Maximilian Forster, Sven-Joachim Paul, Reinhard Kienberger
https://arxiv.org/abs/2507.11497

Photoemission Chronoscopy of the Iodoalkanes
Time delays in photoemission are on the order of attoseconds and have been experimentally determined in atoms, molecules and solids. Their magnitude and energy dependence are expected to yield fundamental insights into the properties of the systems in which they're measured. In a recent study Biswas \textsl{et al.} (Biswas, S., Förg, B., Ortmann, L. et al. Probing molecular environment through photoemission delays. Nat. Phys. 16, 778-783 (2020)) determined the absolute photoemission time of th…

Remember how Epstein's suicide wasn't captured on camera because of two camera failures (2019)?
Remember how Epstein's suicide was captured but the footage was accidentally erased (2020)?
Cool that the FBI was able to release the footage now. Not sus. Very normal. Thanks FBI.

CPJ says police have assaulted "more than 20" journalists, including by less-lethal projectiles, since LA protests began on June 6, echoing the 2020 US protests (Washington Post)
https://www.washingtonpost.com/style/media/2025/06/09…

Journalists come under fire covering L.A. protests
Reporters say they were struck with less-lethal rounds fired by law enforcement in Los Angeles. Advocates worry it will inhibit vital journalism.

Forecasting Extreme Day and Night Heat in Paris
Richard Berk
https://arxiv.org/abs/2508.12886 https://arxiv.org/pdf/2508.12886

Forecasting Extreme Day and Night Heat in Paris
As a demonstration of concept, quantile gradient boosting is used to forecast diurnal and nocturnal Q(.90) air temperatures for Paris, France during late the spring and summer months of 2020. The data are provided by the Paris-Montsouris weather station. Q(.90) values are estimated because the 90th percentile requires that the temperatures be relatively rare and extreme. Predictors include seven routinely collected indicators of weather conditions, lagged by 14 days; the temperature forecasts a…

Volatile enrichment in low-mass planets: Signatures of past planetary disruption?
Mario Sucerquia, Mat\'ias Montesinos, Ana Mar\'ia Agudelo, Nicol\'as Cuello
https://arxiv.org/abs/2507.11693

Volatile enrichment in low-mass planets: Signatures of past planetary disruption?
Context: Tidal disruption and engulfment events around main-sequence stars, such as the luminous red nova ZTF SLRN-2020 (a candidate planetary-engulfment event), reveal the destruction of close-in giant planets. While current observations focus on stellar accretion and inner dust emission, the fate of the volatile-rich material expelled during disruption remains poorly understood. Aims: We investigate whether the H/He-rich gas expelled from the disrupted planet's envelope and atmosphere can e…

LiDO: Discovery of a 10:1 Resonator with a Novel Libration State
Rosemary E. Pike, Ruth Murray-Clay, Kathryn Volk, Mike Alexandersen, Mark Comte, Samantha M. Lawler, Ying-Tung Chen, Arcelia Hermosillo Ruiz, Cameron Semenchuck, Cameron Collyer, J. J. Kavelaars, Lowell Peltier
https://arxiv.org/abs/2508.05627…

LiDO: Discovery of a 10:1 Resonator with a Novel Libration State
The Large inclination Distant Objects LiDO survey has discovered the first securely classified object in the 10:1 mean motion resonance of Neptune. This object, 2020 VN40, is short-term stable in the 10:1 resonance, but not stable on Gyr timescales. 2020 VN40 is likely part of the scattering sticking population, and temporarily resides in the 10:1 resonance at ~139.5 au. This discovery confirms that this distant resonance is populated, as a single detection is likely to be indicative of a large…

Flashback zu meiner turnusmäßigen Grippe-Impfung 2020, bei der sich vor Ort herausstellte, dass die zuständige Ärztin im Dienst gerade die damalige SPÖ-Vorsitzende Pamela Rendi-Wagner war.
#Vaccinate #Grippeimpfung #Österreich