Tootfinder

Unconditional energy dissipation of Strang splitting for the matrix-valued Allen-Cahn equation
Chaoyu Quan, Tao Tang, Dong Wang
https://arxiv.org/abs/2508.03992 https://

Unconditional energy dissipation of Strang splitting for the matrix-valued Allen-Cahn equation
The energy dissipation property of the Strang splitting method was first demonstrated for the matrix-valued Allen-Cahn (MAC) equation under restrictive time-step constraints [J. Comput. Phys. 454, 110985, 2022]. In this work, we eliminate this limitation through a refined stability analysis framework, rigorously proving that the Strang splitting method preserves the energy dissipation law unconditionally for arbitrary time steps. The refined proof hinges on a precise estimation of the double-we…

A look at LA's shrinking entertainment economy; ProdPro: 30% fewer $40M films and shows began shooting in the US in 2024 vs 2022, down 13% more in 2025 so far (Ben Fritz/Wall Street Journal)
https://www.wsj.com/business/media/los-a…

Christian McCaffrey thought he was being traded to another NFC West team before 49ers acquired him in 2022

https://www.cbssports.com/nfl/news/christi

Home Heat Pumps: Barriers to Installation (2022) - A case study in the friction in specifying and installing a heat-pump in the UK, even for a savvy early adopter. #heatpump #netZero #futureReady -…

Home Heat Pumps: Barriers to Installation (2022)
A case study in the friction in specifying and installing a heat-pump in the UK, even for a savvy early adopter. #heatpump #netZero #futureReady

Private and public school efficiency gaps in Latin America-A combined DEA and machine learning approach based on PISA 2022
Marcos Delprato
https://arxiv.org/abs/2509.25353 https…

Private and public school efficiency gaps in Latin America-A combined DEA and machine learning approach based on PISA 2022
Latin America's education systems are fragmented and segregated, with substantial differences by school type. The concept of school efficiency (the ability of school to produce the maximum level of outputs given available resources) is policy relevant due to scarcity of resources in the region. Knowing whether private and public schools are making an efficient use of resources -and which are the leading drivers of efficiency- is critical, even more so after the learning crisis brought by the CO…

'No, we don't': Ex-Panthers Mayfield, Darnold won't reminisce on Carolina days https://www.espn.com/nfl/story/_/id/46453516/baker-mayfield-brushes-carolina-panthers-sam-darnold

My Four Favorite Streaming Music Sites #music #streaming https://muz4now.com/2022/my-four-favor

My Four Favorite Streaming Music Sites
Stan Stewart - @muz4now

🇺🇦 #NowPlaying on #BBC6Music's #AmyLamé
Bonobo:
🎵 Shadows (6 Music Session, 23 May 2022)
#Bonobo
https://bonobomusic.bandcamp.com/track/shadows-feat-jordan-rakei
https://open.spotify.com/track/7aLYQgzGLy8duSSdTJa1ik

📸 Mémoire du 14 juin 2018
Sept ans ont passé depuis ce post.
Et pourtant, la justice n’a toujours pas terminé son travail.
En Belgique, le jugement définitif est tombé en 2022. Mais en 2025, certaines indemnisations sont encore bloquées. Des victimes attendent toujours que leur souffrance soit reconnue dans les faits, pas seulement dans les mots.
En France, l’affaire OKC/Spatz a été relancée en 2017, réouverte officiellement en 2021. Et aujourd’hui ? Toujours aucune mis…

The Atacama Cosmology Telescope: DR6 Sunyaev-Zel'dovich Selected Galaxy Clusters Catalog
HSC Collaboration, M. Aguena, S. Aiola, S. Allam, F. Andrade-Oliveira, D. Bacon, N. Bahcall, N. Battaglia, E. S. Battistelli, S. Bocquet, B. Bolliet, J. R. Bond, D. Brooks, E. Calabrese, J. Carretero, S. K. Choi, L. N. da Costa, M. Costanzi, W. Coulton, T. M. Davis, S. Desai, M. J. Devlin, S. Dicker, P. Doel, A. J. Duivenvoorden, J. Dunkley, S. Ferraro, B. Flaugher, J. Frieman, P. A. Gallardo, …

The Atacama Cosmology Telescope: DR6 Sunyaev-Zel'dovich Selected Galaxy Clusters Catalog
We present the results of a search for galaxy clusters in the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) microwave sky maps covering 16293 square degrees in three frequency bands, using data obtained over the lifetime of the project (2008-2022). We report redshifts and mass estimates for 9977 clusters detected via their Sunyaev-Zel'dovich (SZ) effect with signal-to-noise greater than 4 at a 2.4 arcminute filter scale. The catalog includes 1166 clusters at redshifts greater than 1, a…

Anzahl der #Balkonkraftwerke in #Deutschland mit Stand vom 22.08.2025.
Der aktuelle Höchststand liegt bei 1093815 registrierten Anlagen.
Unplausible Inbetriebnahmedaten von 1900 bis 2017 wurden durch das Registrierungsdatum der

OECD lists 1,300 AI regulations, guidelines, and other policies worldwide as of September 2025, up ~30% since 2022, but international cooperation has stalled (Naoki Watanabe/Nikkei Asia)
https://asia.nikkei.com/business/techn

Global web of AI rules grows 30% in 3 years as cooperation stalls
US, Europe and China pursue their own aims, leaving rest of world behind

General Staff: Russia has lost 1,104,550 troops in Ukraine since Feb. 24, 2022: https://benborges.xyz/2025/09/24/general-staff-russia-has-lost.html

Are you using #GNOME desktop manager and do you know a method on how to switch to windows according to their names (sub-string search) like https://karl-voit.at/2022/10/28/window-teleporting/…

Ducks Ltd. ft. Illuminati Hotties - "Head On" (2022)
This is a really nice, jangly cover 🤩
#music #IndieRock #Pixies

Determinants of Latin American students academic resilience-Insights based on PISA 2022 using an explainable machine learning approach
Marcos Delprato
https://arxiv.org/abs/2509.24830

Determinants of Latin American students academic resilience-Insights based on PISA 2022 using an explainable machine learning approach
The learning crisis in the Latin American region (i.e., higher rates of students not reaching basic competencies at secondary level) is worrying, particularly post-pandemic given the stronger role of inequality behind achievement. Within this scenario, the concept of student academic resilience (SAR), students who despite coming from disadvantaged backgrounds reach good performance levels, and an analysis of its determinants, are policy relevant. In this paper, using advancements on explainable…

90 % der Bürger wünschen sich laut Bitkom mehr Tempo bei der Verwaltungsdigitalisierung. 2017 versprach das OZG: 575 Leistungen bis Ende 2022 online. Realität: erst 165 flächendeckend – selbst gefragteste Behördenleistungen gibt es oft nur in 10 % der Kommunen. Das Vertrauen schwindet schneller, als Aktenordner verstauben. #heise

Gefragteste Behördenleistungen nur in 10 Prozent der Kommunen digital verfügbar
Digitalisierung der Behörden bleibt eine Großbaustelle: Nach wie vor sind viele Leistungen nicht online verfügbar. Die Bürger wünschen laut Bitkom mehr Tempo.

Devastating: 1,000 Endangered Monkeys Sent Back to Cruel Testing https://www.speciesunite.com/petition-updates/devastating-1000-endangered-monkeys-sent-back-to-cruel-testing?utm_source=Mastodon

Devastating: 1,000 Endangered Monkeys Sent Back to Cruel Testing — Species Unite
In a heartbreaking update on the ongoing case of 1,000 long-tailed macaques stolen from the wild in Cambodia in 2022 and illegally imported into the United States by Charles River Laboratories, the notorious animal testing supplier revealed in their second-quarter earnings report that the U.S. D

"Study outlines steps for California to reach net-zero emissions by 2045"
#US #USA #America #California

Study outlines steps for California to reach net-zero emissions by 2045
A 2022 California law mandates net-zero greenhouse gas emissions by 2045 and negative emissions every year thereafter. The state can achieve this but will have to act quickly and thoroughly, and success will require new technologies for sectors difficult to decarbonize, a new Stanford University study finds. The state will need to decarbonize not only cars and electricity but also trucks, trains, planes, agriculture, and factories, while slashing pollution from its oil refineries.

On saturation problems for matchings with regularity constraints
Gang Yang, Zixuan Yang, Shenggui Zhang
https://arxiv.org/abs/2509.17039 https://arxiv.org/…

On saturation problems for matchings with regularity constraints
A graph $G$ is $F$-saturated if $G$ is $F$-free but for any edge $e$ in the complement of $G$ the graph $G + e$ contains $F$. Gerbner et al. (Discrete Math., 345 (2022), 112921) initiated the study of $rsat(n,F)$, the minimum number of edges in a regular $n$-vertex $F$-saturated graph, and they posed the problem of for which graphs $rsat(n, F )$ exists. Regarding this problem, we obtain the precise value of $rsat(n,(m+1)K_2)$ for all possible cases, where $(m+1)K_2$ denotes a matching of size $…

Heute vor 61 Jahren: Am 22. August 1964 zündeten die #USA im Rahmen von Operation Whetstone die Atombombe "Canvasback". Whetstone war eine Serie von #Kernwaffentests bei der 1964/65 insgesamt 46 Bomben größtenteils im Testgebiet in

#Tatort: Mord unter Misteln - #ARD #BR https://ww…

A comprehensive study of comet 67P/Churyumov-Gerasimenko in the 2021/2022 apparition. I. Photometry, spectroscopy, morphology
V. Rosenbush, V. Kleshchonok, O. Ivanova, I. Luk'yanyk, C. Snodgrass, D. Gardener, L. Kolokolova, J. Markkanen, E. Shablovinskaya
https://arxiv.org/abs/2509.12719

A comprehensive study of comet 67P/Churyumov-Gerasimenko in the 2021/2022 apparition. I. Photometry, spectroscopy, morphology
We present observations of comet 67P/Churyumov-Gerasimenko during its 2021/22 apparition, aiming to investigate its dust and gas environment and compare the results with those obtained in 2015/16 using the same telescope. Quasi-simultaneous photometric, spectroscopic, and polarimetric observations were carried out at the 6-m BTA SAO telescope. The comet was observed on 6 October 2021, 31 days before perihelion, with \textit{g}-SDSS and \textit{r}-SDSS filters, and on 6 February 2022, 96 days af…

IP-Basis PINNs: Efficient Multi-Query Inverse Parameter Estimation
Shalev Manor, Mohammad Kohandel
https://arxiv.org/abs/2509.07245 https://arxiv.org/pdf/2…

IP-Basis PINNs: Efficient Multi-Query Inverse Parameter Estimation
Solving inverse problems with Physics-Informed Neural Networks (PINNs) is computationally expensive for multi-query scenarios, as each new set of observed data requires a new, expensive training procedure. We present Inverse-Parameter Basis PINNs (IP-Basis PINNs), a meta-learning framework that extends the foundational work of Desai et al. (2022) to enable rapid and efficient inference for inverse problems. Our method employs an offline-online decomposition: a deep network is first trained offl…

dom: Animal dominance archive (2022)
Animal dominance interaction data published over a century of research. The archive contains 434 agonistic interaction datasets, totaling over 241,000 interactions. A directed edge (i,j) corresponds to an antagonist interaction between i (winner) and j (loser). If a 'weight' edge property map exists, it counts the number of such interactions.
This network has 19 nodes and 132 edges.
Tags: Social, Animal, Weighted

Identifying the post-pandemic determinants of low performing students in Latin America through interpretable Machine Learning SHAP Values-Insights from PISA 2022
Marcos Delprato
https://arxiv.org/abs/2509.24508

Identifying the post-pandemic determinants of low performing students in Latin America through interpretable Machine Learning SHAP Values-Insights from PISA 2022
The high prevalence of students not achieving the basic competencies in Latin America is concerning. Even more so given the region's deep structural inequalities and the larger post-pandemic regional learning losses. Within this scenario, this paper contributes to the identification of the determinants of bottom and low performers (below level 2) using recent advancements on explainable machine learning methods. In particular, relying on PISA 2022 data for 10 countries and using the Shapley Add…

Anzahl der errichteten #Balkonkraftwerke pro Monat in #Deutschland mit Stand vom 25.07.2025.
Unplausible Inbetriebnahmedaten von 1900 bis 2015 wurden durch das Registrierungsdatum der #Steckersolaranlage

Characterizing Online Activities Contributing to Suicide Mortality among Youth
Aparna Ananthasubramaniam, Elyse J. Thulin, Viktoryia Kalesnikava, Silas Falde, Jonathan Kertawidjaja, Lily Johns, Alejandro Rodr\'iguez-Putnam, Emma Spring, Kara Zivin, Briana Mezuk
https://arxiv.org/abs/2507.16185 …

Characterizing Online Activities Contributing to Suicide Mortality among Youth
The recent rise in youth suicide highlights the urgent need to understand how online experiences contribute to this public health issue. Our mixed-methods approach responds to this challenge by developing a set of themes focused on risk factors for suicide mortality in online spaces among youth ages 10-24, and a framework to model these themes at scale. Using 29,124 open text summaries of death investigations between 2013-2022, we conducted a thematic analysis to identify 12 types of online act…

Databricks plans to acquire Tecton, which helps companies build and deploy ML applications, for an undisclosed sum; Tecton was valued at $900M in 2022 (Krystal Hu/Reuters)
https://www.reuters.com/business/finance/databricks-buy-sequoia-…

🇺🇦 Auf radioeins läuft...
Bauhaus:
🎵 Bela Lugosi's dead
#NowPlaying #Bauhaus
https://nickynutz.bandcamp.com/track/bauhaus-bela-lugosis-dead-2022-revamp

Low complexity convergence rate bounds for push-sum algorithms with homogeneous correlation structure
Bal\'azs Gerencs\'er, Mikl\'os Kornyik
https://arxiv.org/abs/2507.16601

Low complexity convergence rate bounds for push-sum algorithms with homogeneous correlation structure
The objective of this work is to establish an upper bound for the almost sure convergence rate for a class of push-sum algorithms. The current work extends the methods and results of the authors on a similar low-complexity bound on push-sum algorithms with some particular synchronous message passing schemes and complements the general approach of Gerencsér and Gerencsér from 2022 providing an exact, but often less accessible description. Furthermore, a parametric analysis is presented on the …

Galois equiangular tight frames from Galois self-dual codes
Junmin An, Jon-Lark Kim
https://arxiv.org/abs/2507.15448 https://arxiv.or…

Galois equiangular tight frames from Galois self-dual codes
Greaves et al. (2022) extended frames over real or complex numbers to frames over finite fields. In this paper, we study the theory of frames over finite fields by incorporating the Galois inner products introduced by Fan and Zhang (2017), which generalize the Euclidean and Hermitian inner products. We define a class of frames, called Galois frames over finite fields, along with related notions such as Galois Gram matrices, Galois frame operators, and Galois equiangular tight frames (Galois ETF…

On the Structural Parameterizations of 2-Club with Triangle Constraints
Ashwin Jacob, Diptapriyo Majumdar, Raghav Sakhuja
https://arxiv.org/abs/2509.16143 https://

On the Structural Parameterizations of 2-Club with Triangle Constraints
Given an undirected graph G = (V, E) and an integer k, the s-Club asks if Gcontains a vertex subset S of at least k vertices such that G[S] has diameter at most s. Recently, Vertex r-Triangle s-Club, and Edge r-Triangle s-Club that generalize the notion of s-Club have been studied by Garvardt et al. [TOCS-2023, IWOCA-2022] from the perspective of parameterized complexity. Given a graph G and an integer k, the Vertex r-Triangle s-Club asks if there is an s-Club S with at least k vertices such th…

Mineral Detection of Neutrinos and Dark Matter 2025 Proceedings
Shigenobu Hirose, Patrick Stengel, Natsue Abe, Daniel Ang, Lorenzo Apollonio, Gabriela R. Araujo, Yoshihiro Asahara, Laura Baudis, Pranshu Bhaumik, Nathaniel Bowden, Joseph Bramante, Lorenzo Caccianiga, Mason Camp, Qing Chang, Jordan Chapman, Reza Ebadi, Alexey Elykov, Anna Erickson, Valentin Fondement, Katherine Freese, Shota Futamura, Claudio Galelli, Andrew Gilpin, Takeshi Hanyu, Noriko Hasebe, Adam A. Hecht, Samuel C. …

Mineral Detection of Neutrinos and Dark Matter 2025 Proceedings
The third ``Mineral Detection of Neutrinos and Dark Matter'' (MD$ν$DM'25) meeting was held May 20-23, 2025 in Yokohama, Japan, hosted by the Yokohama Institute for Earth Sciences, Japan Agency for Marine-Earth Science and Technology (JAMSTEC). These proceedings compile contributions from the workshop and update the progress of mineral detector research. MD$ν$DM'25 was the third such meeting, following the first in October of 2022 held at the IFPU in Trieste, Italy and the second in January of…

General Staff: Russia has lost 1,032,690 troops in Ukraine since Feb. 24, 2022: https://benborges.xyz/2025/07/12/general-staff-russia-has-lost.html

📸 Mémoire du 14 juin 2018
Sept ans ont passé depuis ce post.
Et pourtant, la justice n’a toujours pas terminé son travail.
En Belgique, le jugement définitif est tombé en 2022. Mais en 2025, certaines indemnisations sont encore bloquées. Des victimes attendent toujours que leur souffrance soit reconnue dans les faits, pas seulement dans les mots.
En France, l’affaire OKC/Spatz a été relancée en 2017, réouverte officiellement en 2021. Et aujourd’hui ? Toujours aucune mis…

Can Quantum Physics Help Fight Climate Change? A Thematic Analysis of Press Release Narratives
Maxwell Bernstein, Joanna Krajewski, Rachel Fisher
https://arxiv.org/abs/2507.13600 …

Can Quantum Physics Help Fight Climate Change? A Thematic Analysis of Press Release Narratives
The climate crisis demands innovative solutions and quantum technologies are considered by some a potential solution (Berger et al., 2021; Calvin et al., 2023). The United Nations declared 2025 the International Year of Quantum Science and Technology (United Nations, 2024), focusing on applications for quantum technologies. Quantum technologies, leveraging quantum mechanics, offer unprecedented computational power (Ajagekar & You, 2022) and sensitivity (Schleich et al., 2016) that could revolut…

NuSTAR discovers a long type-I X-ray burst from the clocked burster GS 1826-24
Aditya S. Mondal, Mayukh Pahari, Gulab C. Dewangan
https://arxiv.org/abs/2507.11231

NuSTAR discovers a long type-I X-ray burst from the clocked burster GS 1826-24
The source GS~1826-24 is a neutron star low mass X-ray binary known as the 'clocked burster' because of its extremely regular bursting behavior. We report on the detection of a long type-I X-ray burst from this source. We perform a detailed spectroscopic analysis of the long X-ray burst, lasting for $\sim 600$ s, seen in the NuSTAR observation carried out on 2022 September. The persistent emission is well described by an absorbed thermal Comptonization model (nthcomp), and the source exhibits a…

Heute vor 60 Jahren: Am 23. Juli 1965 zündeten die #USA im Rahmen von Operation Whetstone die Atombombe "Links". Whetstone war eine Serie von #Kernwaffentests bei der 1964/65 insgesamt 46 Bomben größtenteils im Testgebiet in

Sources: Zerohash, which provides crypto and stablecoin infrastructure, is raising ~$100M at a ~$1B valuation, up from $340M when it raised a Series D in 2022 (Ben Weiss/Fortune)
https://fortune.com/crypto/2025/07/11/

Exclusive: Crypto and stablecoin infrastructure startup zerohash to raise $100 million at almost $1 billion valuation
The company is the latest beneficiary of venture capital’s booming interest in stablecoins.

Anzahl der errichteten #Balkonkraftwerke pro Jahr in #Deutschland mit Stand vom 10.07.2025.
Unplausible Inbetriebnahmedaten von 1900 bis 2015 wurden durch das Registrierungsdatum der #Steckersolaranlage

General Staff: Russia has lost 1,090,010 troops in Ukraine since Feb. 24, 2022: https://benborges.xyz/2025/09/09/general-staff-russia-has-lost.html

Analysis of 10 crypto exchanges: on average they took four days to list $TRUMP, whereas the other top four meme coins since 2022 took 129 days to be listed (Reuters)
https://www.reuters.com/sustainability/boa

Medium CEO says the company has been profitable since August 2024 and details its financial turnaround after losing $2.6M per month in 2022 (Tony Stubblebine/The Coach Life)
https://medium.com/the-coach-life/fell-in-a-hole-got-out-381356ec8d7f

Kumulativer Zubau von #Balkonsolarleistung in #Deutschland mit Stand vom 10.07.2025.
Die summarische Leistung aller offiziell registrierten #Steckersolaranlagen beträgt…

Improved bounds on the $H$-rank of a mixed graph in terms of the matching number and fractional matching number
Qi Wu, Yong Lu
https://arxiv.org/abs/2507.04728

Improved bounds on the $H$-rank of a mixed graph in terms of the matching number and fractional matching number
A mixed graph $\widetilde{G}$ is obtained by orienting some edges of a graph $G$, where $G$ is the underlying graph of $\widetilde{G}$. Let $r(\widetilde{G})$ be the $H$-rank of $\widetilde{G}$. Denote by $r(G)$, $κ(G)$, $m(G)$ and $m^{\ast}(G)$ the rank, the number of even cycles, the matching number and the fractional matching number of $G$, respectively. Zhou et al. [Discrete Appl. Math. 313 (2022)] proved that $2m(G)-2κ(G)\leq r(G)\leq 2m(G)+ρ(G)$, where $ρ(G)$ is the largest number of …

Heute vor 61 Jahren: Am 11. September 1964 zündeten die #USA im Rahmen von Operation Whetstone die Atombombe "Spoon". Whetstone war eine Serie von #Kernwaffentests bei der 1964/65 insgesamt 46 Bomben größtenteils im Testgebiet in

Die #Klimakrise trifft #Deutschland:
Die invasive #Tigermücke breitet sich seit 2022 massiv am #Oberrhein

„Nichts zu tun, wäre fatal“: Kommunen wehren sich gegen aggressive Stechmücken-Art
Die Asiatische Tigermücke hat sich am Oberrhein massiv ausgebreitet. Die Bekämpfung soll weitergehen – auch wenn die Hoffnung auf eine Ausrottung des invasiven Insekts mittlerweile zerschlagen hat.