Tootfinder

Sources: StubHub aims to go public by late summer but may call off the listing if it can't get close to the $16.5B valuation from a funding round in 2021 (Cory Weinberg/The Information)
https://www.theinformation.com/articles/stubhub-plan…

StubHub Plans Summer IPO in New Test of Market
Online ticketing marketplace StubHub is aiming to go public by late summer, people close to the company said, setting up another sizable internet initial public offering after Reddit’s IPO last month. And as StubHub has more than $2 billion in debt, many times its estimated profits, the company ...

I feel a little better that I stopped backing projects in Kickstarter when it announced this move at the end of 2021. Eff that guy.
https://indieweb.social/@web3isgreat/112079888590848036

web3 is going just great (@web3isgreat@indieweb.social)
Attached: 2 images Kickstarter's bizarre "pivot to blockchain" spurred by secret $100 million Andreessen Horowitz investment March 11, 2024 https://www.web3isgoinggreat.com/?id=kickstarters-a16z-induced-pivot-to-blockchain

"Norway and the UK were furthest from the Paris climate agreement because the countries were “aggressively” exploring and licensing new oil and gas fields. In 2021, the International Energy Agency found there was no room for new oil exploration in its pathway to net zero emissions."

Source: Akamai is in advanced talks to buy Noname Security, which finds and fixes API vulnerabilities, for $500M; the startup was valued at $1B in December 2021 (Marina Temkin/TechCrunch)
https://techcrunch.com/2024/04/12/akamai-acquisition-talks-noname…

API startup Noname Security nears $500M deal to sell itself to Akamai | TechCrunch
Akamai Technologies is in advanced acquisition talks with Noname Security, an API cybersecurity startup, according to a people person familiar with the deal.

Musk avoided capital gains tax on the value of his shares. Plus (due to this loophole) he deducted the FULL value against other income. Plus (due to being a cheat) he then used the tax-free money for his personal benefit.
So once again taxpayers subsidize him to the tune of billions. https://masto.ai/@Nonilex/112…

Source: Akamai is in advanced talks to buy Noname Security, which finds and fixes API vulnerabilities, for $500M; the startup was valued at $1B in December 2021 (Marina Temkin/TechCrunch)
https://techcrunch.com/2024/04/12/akamai-acquisition-talks-noname…

API startup Noname Security nears $500M deal to sell itself to Akamai | TechCrunch
Akamai Technologies is in advanced acquisition talks with Noname Security, an API cybersecurity startup, according to a people person familiar with the deal.

Browns Re-Signing DT Maurice Hurst To One-Year, $3.2M Deal https://www.yardbarker.com/nfl/articles/browns_re_signing_dt_maurice_hurst_to_one_year_32m_deal/s1_17039_40093180

"Methane emissions: Australian cattle industry suggests shift from net zero target to ‘climate neutral’ approach"
#Australia #Emissions #NetZero

This https://arxiv.org/abs/2312.00783 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

XMM-Newton --NuSTAR monitoring campaign of the Seyfert 1 galaxy IC 4329A
We present the results of a joint {\it XMM-Newton} and {\it NuSTAR} campaign on the active galactic nucleus (AGN) IC 4329A, consisting of 9 $\times$ 20 ks {\it XMM-Newton} observations, and 5 $\times$ 20 ks {\it NuSTAR} observations within nine days, performed in August 2021. Within each observation, the AGN is not very variable, with the fractional variability never exceeding 5%. Flux variations are observed between the different observations, on timescales of days, with a 30% ratio between th…

Over the next 15 years we will spend $3 Trillion on highway expansions and maintenance in the United States
With 2.5% of that funding Amtrak will deliver their vision of adding 39 new routes and enhancing 25 routes!
Imagine what Amtrak could do with 5% of the highway budget?

Very soon, a federal judge in Washington, D.C., is expected to issue a ruling that could expose key pieces of discovery that some lawyers say prove Donald Trump acted in his “private” capacity on Jan. 6, 2021
— not in his official role
— when whipping up a mob of his supporters at the Ellipse and urging them to descend on the Capitol where lawmakers were meeting to certify the 2020 election.

The Trump Docket: A window into Trump's 'private' acts on Jan. 6 may soon be opened by judge
It was a rocky week featuring significant losses for Donald Trump's many bids to dismiss his indictments or waylay longrunning civil litigation around Jan. 6.

New note by cybersecurity
https://poliverso.org/display/0477a01e-2066-166c-c54e-ba6619798744
Per il cyberattacco nel 2021 ai sistemi sanitari del Lazio, 271mila euro di sanzione alla in-house e 120mila alla Regione

That's a topic for me again, #FotoVorschlag "radausflug" / "Cycling trip"
As I'm a fan of #mountainbiking my trips sometimes include quite an incline. That day it was about 1000m incline. On some parts we decided to push the bikes because we were jus…

A King's House
Going to places with the bike has several advantages but also some disadvantages for a photo experience. This hike to a king's house was worthful experience with impressive results ...

Oh Canada! Read this. Let's make history winning, not repeat its mistakes.
:mstdneh:
https://www.strategicvoting.ca/

Strategic Voting 2021 Canadian Federal Election | don’t make a statement, make a difference
Find out how to vote strategically in the Canadian federal election to support progressive candidate in your district. Vote strategically and prevent vote splitting. Make a real change by electing a strong progressive government in Canada.

2021 retro-link! https://www.depesz.com/2021/06/23/a-tale-of-making-company-wide-standard-psqlrc/ - A tale of making a company-wide psqlrc to use with pgbouncer.

L. Brent Bozell IV, son of right wing firebrand needs 12 years for Jan. 6: Feds
https://lawandcrime.com/high-profile/not-a-credible-witness-son-of-prominent-conservati…

Son of prominent conservative among first to invade Senate floor on Jan. 6 needs 12 years: Feds
Federal prosecutors say Leo Brent Bozell IV, son of a prominent right wing activist, deserves no less than 12 years in prison for what he did on Jan. 6, 2021.

Sources detail a secret $100M investment in Kickstarter by a16z Crypto, letting staff and investors cash out, that led to its abandoned blockchain pivot in 2021 (Fortune)
https://fortune.com/crypto/2024/03/11/kickstarter-bloc…

The untold story of Kickstarter’s crypto Hail Mary—and the secret $100 million a16z-led investment to save its fading brand
Inside the once-hot startup's struggle to regain its relevance despite a massive check from the crypto arm of the venture giant Andreessen Horowitz.

#OTD 2021: GENIET VAN HET LEKKERE WEER
Een boodschap die past bij de zomerse temperaturen van vandaag, maar die 3 jaar geleden minder toepasselijk leek met sneeuwval in april. Gemaakt tijdens een lockdownwandeling. Soms kunnen 3 jaar veel verder terug lijken dan decennia.

Russische Journalistin wegen "Verteidigung von Terrorismus" festgenommen
Die russischen Behörden haben die Journalistin Nadeschda Keworkowa wegen der "Rechtfertigung von Terrorismus" festgenommen. Wie ihr Anwalt mitteilte, wurde sie in Untersuchungshaft genommen. Die Vorwürfe betreffen demnach zwei Nachrichten, die die Journalistin 2018 und 2021 im Onlinedienst Telegram veröffentlichte. Die eine betreffe Afghanistan, die ande…
📑

Ukraine-Liveblog: ++ Moskau droht mit Angriff auf britische Militärziele ++
Moskau hat Großbritannien mit einem Angriff gedroht, sollte die Ukraine mit britischen Waffen russisches Gebiet angreifen. Präsident Putin hat Übungen angeordnet, um die Bereitschaft der Atomstreitkräfte zu testen. Alle Entwicklungen im Liveblog zum Nachlesen.

Re-sharing a post from @jwbaker.bsky.social:
The 2024 Richard Deswarte Prize in Digital History is now open for dominations of works published since January 2023.
Nominate your work or a work that you 💜.
Deadline 31 May.
Full details here: https://ihrdighist.blogs.sa…

The 2024 Richard Deswarte Prize in Digital History - Digital History Seminar
Richard Deswarte (1965-2021) was one of the founding convenors of the Digital History seminar at the Institute of Historical Research (IHR), University of London, an advocate for the value and importance of digital history,...

Le revenu après impôt total au Québec s’élevait Š 279,38 milliards de dollars en 2020 et Š 292,67 milliards en 2021. Pourtant, il manquait 2,56 milliards de dollars en 2020, et 2,66 milliards en 2021, dans les revenus des ménages les plus pauvres pour que l’ensemble de la population couvre ses besoins selon la MPC, soit 1% du revenu total après impôt. Or, le décile le plus riche a empoché 4,15 milliards de plus après impôt en 2020!!! Cherchez l’erreur!

Entre budget et plan d’action : un déficit invisible à prendre en compte vers une société sans pauvreté
Qu’y a-t-il de si impensable dans le projet de « tendre vers un Québec sans pauvreté » inscrit dans une loi adoptée à l’unani

The Impact of Sanctions on GitHub Developers and Activities
Youmei Fan, Ani Hovhannisyan, Hideaki Hata, Christoph Treude, Raula Gaikovina Kula
https://arxiv.org/abs/2404.05489

The Impact of Sanctions on GitHub Developers and Activities
The GitHub platform has fueled the creation of truly global software, enabling contributions from developers across various geographical regions of the world. As software becomes more entwined with global politics and social regulations, it becomes similarly subject to government sanctions. In 2019, GitHub restricted access to certain services for users in specific locations but rolled back these restrictions for some communities (e.g., the Iranian community) in 2021. We conducted a large-scale…

'Always have class, and be humble': Some of the late John Madden's most memorable quotes https://www.raiders.com/news/always-have-class-be-humble-most-memorable-quotes-late-john-madden-nfl-2021

'Always have class, and be humble': Some of the late John Madden's most memorable quotes
In remembrance of the late coach's birthday, look back on a few of the greatest quotes to come from the sports icon.

I made the same joke that @… made about declarative infrastructure definitions, using a different set of tools, a few years ago—interested to learn that nixOS covers a lot of the same applications as tools like Puppet

2021 retro-link! https://github.com/irrustible/ointers - What do you call a Rust pointer we stole the high bits off? An ointer.

"In der Freigabebegründung heißt es, der junge Adelsspross eigne sich als Identifikationsfigur für junge Zuschauer, die zahlreichen intensiven Kampf- und Kriegsszenen könnten Kinder unter 12 Jahren jedoch emotional überfordern und ängstigen."
https://de.m.wikipedia.org/wiki/Dune_(

I've have been very proud to have been invited to do the keynote at the SANER conference in 2021 - even if it was initially planned in Hawai 🏄‍♂️☀️🏖️🕶️🍸 and it got moved online 📺 because of Covid.
Tomorrow, I'm equally proud to do a talk at CERN.
For somebody with no degree in computer science, it makes me feel very warm inside 💗

Shorts vs. Regular Videos on YouTube: A Comparative Analysis of User Engagement and Content Creation Trends
Caroline ViolotUniversity of Lausanne, Tu\u{g}rulcan ElmasIndiana University Bloomington, Igor BilogrevicGoogle, Mathias HumbertUniversity of Lausanne
https://arxiv.org/abs/2403.00454<…

Shorts vs. Regular Videos on YouTube: A Comparative Analysis of User Engagement and Content Creation Trends
YouTube introduced the Shorts video format in 2021, allowing users to upload short videos that are prominently displayed on its website and app. Despite having such a large visual footprint, there are no studies to date that have looked at the impact Shorts introduction had on the production and consumption of content on YouTube. This paper presents the first comparative analysis of YouTube Shorts versus regular videos with respect to user engagement (i.e., views, likes, and comments), content …

Performance of a modular ton-scale pixel-readout liquid argon time projection chamber
DUNE Collaboration, et al.
https://arxiv.org/abs/2403.03212 https://<…

Performance of a modular ton-scale pixel-readout liquid argon time projection chamber
The Module-0 Demonstrator is a single-phase 600 kg liquid argon time projection chamber operated as a prototype for the DUNE liquid argon near detector. Based on the ArgonCube design concept, Module-0 features a novel 80k-channel pixelated charge readout and advanced high-coverage photon detection system. In this paper, we present an analysis of an eight-day data set consisting of 25 million cosmic ray events collected in the spring of 2021. We use this sample to demonstrate the imaging perform…

Stellwerk München Ost
Das Stellwerk am Münchner Ostbahnhof ist bei weitem nicht die einzige Quelle für Störungen im Münchner S-Bahn-Netz und darüber hinaus, aber eine der häufigeren Ursachen. 2021 wurde daher begonnen, ein neues Stellwerk zu errichten. Im Sommer 2023 sollte das neue elektronische Stellwerk in Betrieb gehen, aber im Mai letzten Jahres wurde die Inbetriebnahme auf August 2024 verschoben. Jetzt kam die Nachricht, dass es ein weiteres Jahr länger ...

The bright black hole X-ray binary 4U 1543-47 during 2021 outburst. A clear state transition from super-Eddington to sub-Eddington accretion revealed by Insight-HXMT
Pei Jin, Guobao Zhang, Yuexin Zhang, Mariano M\'endez, Jinlu Qu, David M. Russell, Jiancheng Wang, Shuangnan Zhang, Yi-Jung Yang, Shumei Jia, Zixu Yang, Hexin Liu
https://

The bright black hole X-ray binary 4U 1543-47 during 2021 outburst. A clear state transition from super-Eddington to sub-Eddington accretion revealed by Insight-HXMT
We present a detailed analysis of the observations with the Hard X-ray Modulation Telescope of the black hole X-ray transient 4U~1543-47 during its outburst in 2021. We find a clear state transition during the outburst decay of the source. Using previous measurements of the black-hole mass and distance to the source, the source luminosity during this transition is close to the Eddington limit. The light curves before and after the transition can be fitted by two exponential functions with short…

The Penrose Inequality for Metrics with Singular Sets
Huaiyu Zhang
https://arxiv.org/abs/2405.04227 https://arxiv.org/pdf/2405.04227<…

The Penrose Inequality for Metrics with Singular Sets
We study the Penrose inequality and its rigidity for metrics with singular sets. Our result could be viewed as a complement of Theorem 1.1 of Lu and Miao (J. Funct. Anal. 281, 2021) and Theorem 1.2 of Shi, Wang and Yu (Math. Z. 291, 2019), in which they assume the singular set is a hypersurface and assume an additional condition on the mean curvature. As a complement, this paper study the case of singular set of dimensional less than n-1, without any additional conditions.

Neurodiversity, scotpol
The Scottish Government has spent about two years consulting on how to consult about the Learning Disabilities, Autism and Neurodivergence Bill the SNP said they'd introduce in their 2021 manifesto.
So HOW have they managed to come back with a consultation featuring a 190-page full consultation document, with a 35-page "short guide" - that's 35 pages of A4, mind?
Where the education section alone is roughly a half-hour read?
Where they felt the need to include a request to "Please USE THIS GUIDE - _here_ - on How to complete your online response"... and then forgot to actually link to the guide?
Where the page on completing a written out recorded response instructs people to "please complete the Respondent Information Form and send with your completed questionnaire" but links to neither of those documents?
...anyway, so I'll be live on the SEMA YouTube tomorrow at 12:30 trying to be as constructive and helpful as possible about all this.
https://www.youtube.com/@SEMA_Scot?si=ct_IwgEMAJGoSzNB

In which I brush up and release (0.5.0) the “topfew” program I built back in 2021/22 and have been neglecting, but noticed that I was using it all the time so maybe others will too: https://www.tbray.org/ongoing/When/202x/2024/04/12/Topfew-release

Topfew Release 0.5

2021 retro-link! https://zwischenzugs.com/2018/06/08/anatomy-of-a-linux-dns-lookup-part-i/ - Anatomy of a Linux DNS lookup.

Fotograaf werd opgepakt en moest spullen inleveren bij A12-demonstratie: onrechtmatig, oordeelt hof - #ADnl
https://www.ad.nl/den-haag/…

The bright black hole X-ray binary 4U 1543-47 during 2021 outburst. A clear state transition from super-Eddington to sub-Eddington accretion revealed by Insight-HXMT
Pei Jin, Guobao Zhang, Yuexin Zhang, Mariano M\'endez, Jinlu Qu, David M. Russell, Jiancheng Wang, Shuangnan Zhang, Yi-Jung Yang, Shumei Jia, Zixu Yang, Hexin Liu
https://

The bright black hole X-ray binary 4U 1543-47 during 2021 outburst. A clear state transition from super-Eddington to sub-Eddington accretion revealed by Insight-HXMT
We present a detailed analysis of the observations with the Hard X-ray Modulation Telescope of the black hole X-ray transient 4U~1543-47 during its outburst in 2021. We find a clear state transition during the outburst decay of the source. Using previous measurements of the black-hole mass and distance to the source, the source luminosity during this transition is close to the Eddington limit. The light curves before and after the transition can be fitted by two exponential functions with short…

får man skriva att man är en "icke vinstdrivande" skola när man i regel gör 6-7 siffror plus och tar ut utdelningar mellan 300-750 kkr varje år?
Utdelningar senaste åren är 742 kkr (2022-12-19), 726 kkr (2021-10-29), 705 kkr (2020-10-28), 300 kkr (2019-11-08), 300 kkr (2018-12-10), 390 kkr (2017-11-30).
Vinster senaste åren:
19-20 1,5 mkr.
20-21 1,2 mkr.
21-22 700 kkr.
22-23 800 kkr.
Uppgifter från årsredovisningarna som ligger på

Multi-level Nonstandard Analysis and the Axiom of Choice
Karel Hrbacek
https://arxiv.org/abs/2405.00621 https://arxiv.org/pdf/2405.00…

Multi-level Nonstandard Analysis and the Axiom of Choice
Model-theoretic frameworks for Nonstandard Analysis depend on the existence of nonprincipal ultrafilters, a strong form of the Axiom of Choice (AC). Hrbacek and Katz, APAL 72 (2021) formulate axiomatic nonstandard set theories SPOT and SCOT that are conservative extensions of respectively ZF and ZF + ADC (the Axiom of Dependent Choice), and in which a significant part of Nonstandard Analysis can be developed. The present paper extends these theories to theories with many levels of standardness,…

Probabilistic Generating Circuits -- Demystified
Sanyam Agarwal, Markus Bl\"aser
https://arxiv.org/abs/2404.02912 https://arxiv.…

Probabilistic Generating Circuits -- Demystified
Zhang et al. (ICML 2021, PLMR 139, pp. 12447-1245) introduced probabilistic generating circuits (PGCs) as a probabilistic model to unify probabilistic circuits (PCs) and determinantal point processes (DPPs). At a first glance, PGCs store a distribution in a very different way, they compute the probability generating polynomial instead of the probability mass function and it seems that this is the main reason why PGCs are more powerful than PCs or DPPs. However, PGCs also allow for negative weig…

Akamai agrees to acquire Noname Security, which finds and fixes API vulnerabilities, for ~$450M, closing in Q2 2024; Noname was valued at $1B in December 2021 (Ingrid Lunden/TechCrunch)
https://techcrunch.com/2024/05/07/akamai-confirms-acquisition…

Akamai confirms acquisition of Noname for $450M | TechCrunch
A couple of weeks ago, TechCrunch broke the news that Akamai was in discussions to acquire Noname Security, a specialist in API security, for around $500

This https://arxiv.org/abs/2207.08543 has been replaced.
link: https://scholar.google.com/scholar?q=a

Comparing Diagonals on the Associahedra
We prove that the formula for the diagonal approximation $Δ_{K}$ on J. Stasheff's $n$-dimensional associahedron $K_{n+2}$ derived by the current authors in 2004 agrees with the "magical formula" for the diagonal approximation $Δ_{K}^{\prime}$ derived by Markl and Shnider in 2006, by Loday in 2011, and by Masuda, Thomas, Tonks, and Vallette in 2021.

"Indonesian palm oil, Brazilian beef top contributors to U.S. deforestation exposure"
#US #USA #America #Brazil

Indonesian palm oil, Brazilian beef top contributors to U.S. deforestation exposure
If you’re in the United States, your meal might come with a side of deforestation.  The US imported palm oil, cattle products, soybeans, cocoa, rubber, coffee and corn linked to an estimated 122,800 hectares (303,445 acres) of tropical deforestation between October 2021 and November 2023 — an area the size of the city of Los […]

This https://arxiv.org/abs/2312.04841 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Unveiling Luminous Ly$α$ Emitters at $z\approx6$ through JWST/NIRCam Imaging in the COSMOS Field
We study a sample of 14 spectroscopically confirmed Ly$α$ Emitters (LAEs) in the late era of reionization (at redshift $z\approx6$) based on the JWST/NIRCam imaging dataset. These LAEs with high Ly$α$ luminosity of $L$(Ly$α$) $\sim10^{42.4-43.4}$ erg s$^{-1}$ have been covered by the (ongoing) COSMOS-Web survey (Kartaltepe et al. 2021; Casey et al. 2022) over $0.28$ deg$^2$ in four NIRCam bands (F115W, F150W, F277W, and F444W). With JWST imaging, we determine the UV continua with $M_{\rm UV}…

Oh god
https://www.pixiv.net/en/artworks/92041231

Yu-Gi-Oh! SEVENS / ろぐうぅぅかいしいぃぃぃ / August 16th, 2021 - pixiv
pixiv

In which I brush up and release (0.5.0) the “topfew” program I built back in 2021/22 and have been neglecting, but noticed that I was using it all the time so maybe others will too: https://www.tbray.org/ongoing/When/202x/2024/04/12/Topfew-release

Topfew Release 0.5

@… @… nehmen wir mal die Zahlen aus dem Artikel:
1/2020 7,4%, 1/2021 9,3% und 1/2022 11,6% ergeben 31% vom ersten Quartal 2019 bis zum ersten Quartal 2022.
Das sind allerdings alle Wohnimmobilien, nicht nur gebrauchte. Bei gebrauchten…

Upgrade of NaI(Tl) crystal encapsulation for the NEON experiment
J. J. Choi, E. J. Jeon, J. Y. Kim, K. W. Kim, S. H. Kim, S. K. Kim, Y. D. Kim, Y. J. Ko, B. C. Koh, C. Ha, B. J. Park, S. H. Lee, I. S. Lee, H. Lee, H. S. Lee, J. Lee, Y. M. Oh
https://arxiv.org/abs/2404.03691

Upgrade of NaI(Tl) crystal encapsulation for the NEON experiment
The Neutrino Elastic-scattering Observation with NaI(Tl) experiment (NEON) aims to detect coherent elastic neutrino-nucleus scattering~(CE$ν$NS) in a NaI(Tl) crystal using reactor anti-electron neutrinos at the Hanbit nuclear power plant complex. A total of 13.3 kg of NaI(Tl) crystals were initially installed in December 2020 at the tendon gallery, 23.7$\pm$0.3\,m away from the reactor core, which operates at a thermal power of 2.8\,GW. Initial engineering operation was performed from May 2021…

AssetHarvester: A Static Analysis Tool for Detecting Assets Protected by Secrets in Software Artifacts
Setu Kumar Basak, K. Virgil English, Ken Ogura, Vitesh Kambara, Bradley Reaves, Laurie Williams
https://arxiv.org/abs/2403.19072

AssetHarvester: A Static Analysis Tool for Detecting Assets Protected by Secrets in Software Artifacts
GitGuardian monitored secrets exposure in public GitHub repositories and reported developers leaked over 12 million secrets (database and other credentials) in 2023, indicating a 113% surge from 2021. Despite the availability of secret detection tools, developers ignore the tools' reported warnings because of false positives (25%-99%). However, each secret protects assets of different values accessible through asset identifiers (a DNS name and a public or private IP address). The asset informat…

Filing: API Holdings, the parent firm of Indian online pharmacy PharmEasy, raises $216M at a $710M valuation, down ~90% from its peak valuation of $5.6B in 2021 (Entrackr)
https://entrackr.com/2024/04/exclusive-pharmeasy-raises-216-m…

Exclusive: PharmEasy raises $216 Mn led by MEMG at $710 Mn valuation
PharmEasy has raised Rs 1,804 crore ($216 million) led by Ranjan Pai's Manipal Education and Medical Group (MEMG) and existing investors.

An Exploratory Analysis of COVID Bot vs Human Disinformation Dissemination stemming from the Disinformation Dozen on Telegram
Lynnette Hui Xian Ng, Ian Kloo, Kathleen M. Carley
https://arxiv.org/abs/2402.14203

An Exploratory Analysis of COVID Bot vs Human Disinformation Dissemination stemming from the Disinformation Dozen on Telegram
The COVID-19 pandemic of 2021 led to a worldwide health crisis that was accompanied by an infodemic. A group of 12 social media personalities, dubbed the ``Disinformation Dozen", were identified as key in spreading disinformation regarding the COVID-19 virus, treatments, and vaccines. This study focuses on the spread of disinformation propagated by this group on Telegram, a mobile messaging and social media platform. After segregating users into three groups -- the Disinformation Dozen, bots, a…

Improved Space Bounds for Subset Sum
Tatiana Belova, Nikolai Chukhin, Alexander S. Kulikov, Ivan Mihajlin
https://arxiv.org/abs/2402.13170 https://<…

Improved Space Bounds for Subset Sum
More than 40 years ago, Schroeppel and Shamir presented an algorithm that solves the Subset Sum problem for $n$ integers in time $O^*(2^{0.5n})$ and space $O^*(2^{0.25n})$. The time upper bound remains unbeaten, but the space upper bound has been improved to $O^*(2^{0.249999n})$ in a recent breakthrough paper by Nederlof and Węgrzycki (STOC 2021). Their algorithm is a clever combination of a number of previously known techniques with a new reduction and a new algorithm for the Orthogonal Vecto…

Multi-Center Fetal Brain Tissue Annotation (FeTA) Challenge 2022 Results
Kelly Payette, C\'eline Steger, Roxane Licandro, Priscille de Dumast, Hongwei Bran Li, Matthew Barkovich, Liu Li, Maik Dannecker, Chen Chen, Cheng Ouyang, Niccol\`o McConnell, Alina Miron, Yongmin Li, Alena Uus, Irina Grigorescu, Paula Ramirez Gilliland, Md Mahfuzur Rahman Siddiquee, Daguang Xu, Andriy Myronenko, Haoyu Wang, Ziyan Huang, Jin Ye, Mireia Aleny\`a, Valentin Comte, Oscar Camara, Jean-Baptiste Mass…

Multi-Center Fetal Brain Tissue Annotation (FeTA) Challenge 2022 Results
Segmentation is a critical step in analyzing the developing human fetal brain. There have been vast improvements in automatic segmentation methods in the past several years, and the Fetal Brain Tissue Annotation (FeTA) Challenge 2021 helped to establish an excellent standard of fetal brain segmentation. However, FeTA 2021 was a single center study, and the generalizability of algorithms across different imaging centers remains unsolved, limiting real-world clinical applicability. The multi-cent…

A Geometric Representation
Nicholas Phat Nguyen
https://arxiv.org/abs/2404.12661 https://arxiv.org/pdf/2404.12661

A Geometric Representation
This article provides a geometric representation for the well-known isomorphism between the special orthogonal group of an isotropic quadratic space of dimension 3 and the group of projective transformations of a projective line. This geometric representation depends on the theory of inversive transformations in dimension 1 as outlined in the 2021 article Projective Line Revisited by the same author. This geometric representation also provides a new perspective on some classical properties of t…

The Impact of School and Family Networks on COVID-19 Infections Among Dutch Students: A Study Using Population-Level Registry Data
Javier Garcia-Bernardo, Christine Hedde-von Westernhagen, Tom Emery, Albert Jan van Hoek
https://arxiv.org/abs/2404.08098

The Impact of School and Family Networks on COVID-19 Infections Among Dutch Students: A Study Using Population-Level Registry Data
Understanding the impact of different social interactions is key to improving epidemic models. Here, we use extensive registry data -- including PCR test results and population-level networks -- to investigate the impact of school, family, and other social contacts on SARS-CoV-2 transmission in the Netherlands (June 2020--October 2021). We isolate and compare different contexts of potential SARS-CoV-2 transmission by matching pairs of students based on their attendance at the same or different …

Improved Space Bounds for Subset Sum
Tatiana Belova, Nikolai Chukhin, Alexander S. Kulikov, Ivan Mihajlin
https://arxiv.org/abs/2402.13170 https://<…

Improved Space Bounds for Subset Sum
More than 40 years ago, Schroeppel and Shamir presented an algorithm that solves the Subset Sum problem for $n$ integers in time $O^*(2^{0.5n})$ and space $O^*(2^{0.25n})$. The time upper bound remains unbeaten, but the space upper bound has been improved to $O^*(2^{0.249999n})$ in a recent breakthrough paper by Nederlof and Węgrzycki (STOC 2021). Their algorithm is a clever combination of a number of previously known techniques with a new reduction and a new algorithm for the Orthogonal Vecto…

This https://arxiv.org/abs/2404.19272 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Chandra Study of the Proper Motion of HST-1 in the Jet of M87
The radio galaxy M87 is well known for its jet, which features a series of bright knots observable from radio to X-ray wavelengths. We analyze the X-ray image and flux variability of the knot HST-1 in the jet. Our analysis includes all 112 available \textit{Chandra} ACIS-S observations from 2000-2021, with a total exposure time of $\sim$887 ks. We use de-convolved images to study the brightness profile of the X-ray jet and measure the relative separation between the core and HST-1. From 2003-20…

Eine Bekannte macht jedes Jahr eine legendäre Party. Diese Jahr mit 50 Personen. 10 mehr als im letzten Jahr. Das ist das #Wachstum, das wir brauchen. Mehr #Freunde, mehr #Glück, mehr #Party. Alle kommen mit dem #Fahrrad, essen müssen sie sowieso. Also alles prima!
Ich wollte ja auf meine Wahlkampfplakate 2021 „Mehr Glück statt #BIP“ schreiben. Das wurde aber als zu kompliziert verworfen.
Wir haben uns dann auf einfache Nachrichten geeinigt.
Bild: Marius Beyer, damaliger Vorsitzender der Partei #DiePartei, #Erlangen

Multivariate confluent Vandermonde with G-Arnoldi and applications
Lei-Hong Zhang, Ya-Nan Zhang, Linyi Yang, Yifu Wu
https://arxiv.org/abs/2404.09266 https…

Multivariate confluent Vandermonde with G-Arnoldi and applications
In the least-squares fitting framework, the Vandermonde with Arnoldi (V+A) method presented in [Brubeck, Nakatsukasa, and Trefethen, SIAM Review, 63 (2021), pp. 405-415] is an effective approach to compute a polynomial that approximates an underlying univariate function f. Extensions of V+A include its multivariate version and the univariate confluent V+A; the latter enables us to use the information of the derivative of f in obtaining the approximation polynomial. In this paper, we shall exten…

The Active Asteroids Citizen Science Program: Overview and First Results
Colin Orion Chandler, Chadwick A. Trujillo, William J. Oldroyd, Jay K. Kueny, William A. Burris, Henry H. Hsieh, Jarod A. DeSpain, Nima Sedaghat, Scott S. Sheppard, Kennedy A. Farrell, David E. Trilling, Annika Gustafsson, Mark Jesus Mendoza Magbanua, Michele T. Mazzucato, Milton K. D. Bosch, Tiffany Shaw-Diaz, Virgilio Gonano, Al Lamperti, Jos\'e A. da Silva Campos, Brian L. Goodwin, Ivan A. Terentev, Charles…

The Active Asteroids Citizen Science Program: Overview and First Results
We present the Citizen Science program Active Asteroids and describe discoveries stemming from our ongoing project. Our NASA Partner program is hosted on the Zooniverse online platform and launched on 2021 August 31, with the goal of engaging the community in the search for active asteroids -- asteroids with comet-like tails or comae. We also set out to identify other unusual active solar system objects, such as active Centaurs, active quasi-Hilda asteroids, and Jupiter-family comets (JFCs). Ac…

Just going to leave this here:
#Australia 2024, #Alonso vs. #Russell: 20sec penalty
#Silverstone 2021,

12/ Das ist hier aus einer Arbeit der Themenklasse #Nachhaltigkeit der #HumboldtUni. Sie haben interessante Überlegungen zum Thema #CO2Kompensation angestellt. Und ja, selbst die Kompensationen sind kolonialistisch, weil wir dem globalen Süden seine billigen Kompensationsmöglichkeiten wegnehmen. Deswegen die Schwarze Putzfrau in 10/.
#FliegenTötet #Flugscham #tazscham
#hunniesForFuture
#tazReisen #fliegenTötet #stayGrounded #amBodenBleiben
#Heuchelei
#Presse #Medien #taz #Klimakatastrophe

The Massalia asteroid family as the origin of ordinary L chondrites
Micha\"el Marsset, Pierre Vernazza, Miroslav Bro\v{z}, Cristina A. Thomas, Francesca E. DeMeo, Brian Burt, Richard P. Binzel, Vishnu Reddy, Allison McGraw, Chrysa Avdellidou, Benoit Carry, Stephen M. Slivan, David Polishook
https://arxiv.org/abs/2403.08548<…

The Massalia asteroid family as the origin of ordinary L chondrites
Studies of micrometeorites in mid-Ordovician limestones and Earth's impact craters indicate that our planet witnessed a massive infall of ordinary L chondrite material 466 million years (My) ago (Heck et al. 2017, Schmieder & Kring 2020, Kenkmann 2021) that may have been at the origin of the first major mass extinction event (Schmitz et al. 2019). The breakup of a large asteroid in the main belt is the likely cause of this massive infall. In modern times, material originating from this breakup …