Tootfinder

Climate change: across time and frequencies
Luis Aguiar-Conraria, Vasco J. Gabriel, Luis F. Martins, Anthoulla Phella
https://arxiv.org/abs/2509.21334 https://

Climate change: across time and frequencies
We use continuous wavelet tools to characterize the dynamics of climate change across time and frequencies. This approach allows us to capture the changing patterns in the relationship between global mean temperature anomalies and climate forcings. Using historical data from 1850 to 2022, we find that greenhouse gases, and CO$_2$ in particular, play a significant role in driving the very low frequency trending behaviour in temperatures, even after controlling for the effects of natural forcings…

General Staff: Russia has lost 1,100,600 troops in Ukraine since Feb. 24, 2022: https://benborges.xyz/2025/09/20/general-staff-russia-has-lost.html

I'm curious - what San Francisco media has covered this? Admittedly something I have not been looking for. But a quick search doesn't find many news articles - but it appears to be a nationwide problem. Sure, FDA has published their alert (2022) but that's not a great tool to reach people who need to know about risks.
The FDA has warned against this ‘natural remedy’ for joint pain. San Francisco immigrants still trust it

Im März 2022 hat eine kommunales Gremium in der südschwedischen Kommune Staffanstorp den rechtswidrigen Beschluss gefasst, Geflüchtete, die über einen UNHCR-Beschluss nach #Schweden gekommen sind, nicht aufzunehmen. Vor ein paar Tagen hat die Staatsanwaltschaft gegen die Politiker*innen, die nicht formal Bedenken gegen den Beschluss erhoben hatten, Anklage wegen schwerer Dienstvergehen erhoben.…

Sex kommunpolitiker i Staffanstorp åtalas för grovt tjänstefel
Sex kommunpolitiker i Staffanstorps kommun åtalas för grovt tjänstefel efter beslutet att inte ta emot kvotflyktingar.

#fedihilfe ein ungenannt bleiben wollender ChatBot hat eines meiner Fotos als Porträt der Ex- #Femen Aktivistin #JosephineWitt identifiziert. Ist das Quatsch oder hat das LLM recht?
ttps://commons.wikimedia.org/wiki/File:Internationaler_Tag_der_Menschenrechte,_Berlin_2022,_LeaveNoOneBehind,_Marsch_für_Menschenrechte_07.jpg
@…

Largevars: An R Package for Testing Large VARs for the Presence of Cointegration
Anna Bykhovskaya, Vadim Gorin, Eszter Kiss
https://arxiv.org/abs/2509.06295 https://

Largevars: An R Package for Testing Large VARs for the Presence of Cointegration
Cointegration is a property of multivariate time series that determines whether its non-stationary, growing components have a stationary linear combination. Largevars R package conducts a cointegration test for high-dimensional vector autoregressions of order k based on the large N, T asymptotics of Bykhovskaya and Gorin (2022, 2025). The implemented test is a modification of the Johansen likelihood ratio test. In the absence of cointegration the test converges to the partial sum of the Airy_1 …

Doubly Discordant SH0ES NGC4258 Cepheid Relations (HVI), and Impactful Extinction Laws
Daniel Majaess
https://arxiv.org/abs/2510.04998 https://arxiv.org/pd…

Doubly Discordant SH0ES NGC4258 Cepheid Relations (HVI), and Impactful Extinction Laws
S$H_0$ES 2016-2022 $HVI$ data for classical Cepheids in the keystone galaxy NGC4258 yield doubly discordant Wesenheit Leavitt functions:~$ΔW_{0,H-VI} = -0.13\pm0^{m}.02$ ($-0^{m}.17$ unweighted) and that is paired with a previously noted $ΔW_{0,I-VI}\simeq-0^{m}.3$, which in concert with complimentary evidence suggest the 2016 S$H_0$ES NGC4258-anchored $H_0 \pm σ_{H_0}$ warrants scrutiny (i.e., $σ_{H_0}/{H_0}\gtrsim 6$\%). Cepheid distance uncertainties are further exacerbated by extinction…

Separable convex optimization over indegree polytopes
N\'ora A. Borsik, P\'eter Madarasi
https://arxiv.org/abs/2509.06182 https://arxiv.org/pdf/250…

Separable convex optimization over indegree polytopes
We study egalitarian (acyclic) orientations of undirected graphs under indegree-based objectives, such as minimizing the $φ$-sum of indegrees for a strictly convex function $φ$, decreasing minimization (dec-min), and increasing maximization (inc-max). In the non-acyclic setting of Frank and Murota (2022), a single orientation simultaneously optimizes these three objectives, however, restricting to acyclic orientations confines us to the corners of the indegree polytope, where these fairness o…

Teaching with AI: A Systematic Review of Chatbots, Generative Tools, and Tutoring Systems in Programming Education
Said Elnaffar, Farzad Rashidi, Abedallah Zaid Abualkishik
https://arxiv.org/abs/2510.03884

Teaching with AI: A Systematic Review of Chatbots, Generative Tools, and Tutoring Systems in Programming Education
This review examines the role of artificial intelligence (AI) agents in programming education, focusing on how these tools are being integrated into educational practice and their impact on student learning outcomes. An analysis of fifty-eight peer-reviewed studies published between 2022 and 2025 identified three primary categories of AI agents: chatbots, generative AI (GenAI), and intelligent tutoring systems (ITS), with GenAI being the most frequently studied. The primary instructional object…

Multiwavelength continuum, emission line and BAL variability with prominent PV absorption in the X-ray-weakest quasar PG0043 039
Wolfram Kollatschny, Norbert Schartel, Malte A. Probst, Martin W. Ochmann, Lucia Ballo, Maria Santos-Lleo
https://arxiv.org/abs/2510.04733

Multiwavelength continuum, emission line and BAL variability with prominent PV absorption in the X-ray-weakest quasar PG0043+039
PG0043+039 has been identified as an extremely X-ray-weak quasar and as a peculiar broad-absorption-line quasar based on UV HST spectra. We took simultaneous deep X-ray observations of PG0043+039 with XMM-Newton and NuSTAR, UV spectra with the HST, and optical spectra with the HET telescope in 2022. PG0043+039 was an extreme low-X-ray-luminosity quasar in 2022. This AGN showed an extreme steep alpha_oX value of -2.47. The X-ray luminosity was a factor of 3.4 higher in the meantime in 2013. The …