Tootfinder

The Journey of CodeLab: How University Hackathons Built a Community of Engaged Students
Renato Cordeiro Ferreira (University of S\~ao Paulo), Renata Santos Miranda (University of S\~ao Paulo), Alfredo Goldman (University of S\~ao Paulo)
https://arxiv.org/abs/2506.12840

The Journey of CodeLab: How University Hackathons Built a Community of Engaged Students
This paper presents the journey of CodeLab: a student-organized initiative from the University of São Paulo that has grown thanks to university hackathons. It summarizes patterns, challenges, and lessons learned over 15 competitions organized by the group from 2015 to 2020. By describing these experiences, this report aims to help CodeLab to resume its events after the COVID-19 pandemic, and foster similar initiatives around the world.

pySpainMobility: a Python Package to Access and Manage Spanish Open Mobility Data
Ciro Beneduce, Tania Gull\'on Mu\~noz-Repiso, Bruno Lepri, Massimiliano Luca
https://arxiv.org/abs/2506.13385

pySpainMobility: a Python Package to Access and Manage Spanish Open Mobility Data
Mobility patterns play a critical role in a wide range of societal challenges, from epidemic modeling and emergency response to transportation planning and regional development. Yet, access to high-quality, timely, and openly available mobility data remains limited. In response, the Spanish Ministry of Transportation and Sustainable Mobility has released daily mobility datasets based on anonymized mobile phone data, covering districts, municipalities, and greater urban areas from February 2020 …

Staatsanwaltschaft Berlin: Mehr als 600 Encrochat-Verfahren
Im Jahr 2020 konnten Strafverfolger Encrochat knacken. Die Verfahren rund um damit organisierte Kriminalität dauern bis heute an.
https://www…

Melting down a tetraquark: $D^{\ast}D^{(\ast)}$ interactions and $T_{cc}(3875)^ $ in a hot environment
Victor Montesinos, Gloria Montana, Miguel Albaladejo, Juan Nieves, Laura Tolos
https://arxiv.org/abs/2507.13319

Melting down a tetraquark: $D^{\ast}D^{(\ast)}$ interactions and $T_{cc}(3875)^+$ in a hot environment
We discuss the modification of the properties of the tetraquark-like $T_{cc}(3875)^+$ and its heavy quark spin partner, $T_{cc}(4016)^{*+}$ immersed in a hot bath of pions. We consider these exotic states as purely isoscalar $DD^\ast$ and $D^\ast D^\ast$ $S$-wave bound states, respectively. Finite temperature effects are incorporated through the $D$ and $D^\ast$ state-of-the-art thermal spectral functions calculated in [G. Montana et al., Phys. Rev. D, 102 (2020) 096020], using the imaginary-ti…

« Des soldats nous ont dit de nous déshabiller » : en Ethiopie, le silence sur les viols de masse commis pendant la guerre au Tigré
https://www.lemonde.fr/afrique/article/202…

« Des soldats nous ont dit de nous déshabiller » : en Ethiopie, le silence sur les viols de masse commis pendant la guerre au Tigré
Entre 2020 et 2022, 120 000 femmes ont été victimes de viols dans cette région en proie à une rébellion. La réticence des autorités, aussi bien fédérales que régionales, à ouvrir les yeux sur ce fléau, entrave le processus de reconstruction des victimes.

5 Tools to Amp Up Your Keyboard Rig
#DigitalPiano #MusicianTips
https://muz4now.com/2020…

5 Tools to Amp Up Your Keyboard Rig
Stan Stewart - @muz4now

Apple’s ‘liquid glass’ contrast hilarity is now a bullet on my post “I Don’t Care What Google or Apple or Whoever Did”
https://adrianroselli.com/2020/03/i-dont-care-what-google-or-apple-or-whomever-did.html
Please please PLEA…

Just now: we're celebrating 5 years of CLARIN-CH 🇨🇭and the fact that Switzerland is a full member of #CLARIN since beginning of 2025
🎉

Mark your calendars for our upcoming events this Fall from the Love of Children program. You can read and register for these events at https://yaleyouthministryinstitute.org/upcoming-events/

fly_hemibrain: Fly hemibrain (2020)
A synaptic map of the hemibrain connectome of fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using EM reconstruction techniques. Neurons are labeled by their type. Edges are annotated by the connection strength between the neurons.
This network has 21739 nodes and 4259624 edges.
Tags: Biological, Connectome, Weighted, Metadata

Sorry to miss it in person and that I cannot stay for the panels on: teacher, gender, inclusion, decolonisation, and future action. Lovely to see and hear so many wonderful colleagues even from a distance.
My fun memory was the cartoon by the talented (then PhD student) Kalifa Damani during my talk on silent exclusion at the REAL Centre in January 2020 before the world shut, and many fun moments with Pauline Rose over the years.
Congratulations! The achievements are remarkable.

Scale-by-scale energy transfers in bubbly flows
Hridey Narula, Vikash Pandey, Dhrubaditya Mitra, Prasad Perlekar
https://arxiv.org/abs/2506.07693 https://

Scale-by-scale energy transfers in bubbly flows
Variable density buoyancy-driven bubbly flows allow for multiple definitions of scale-dependent (or filtered) energy. A priori, it is not obvious which of these provide the most physically apt scale-by-scale budget. In the present study, we compare two such definitions, based on (a) filtered momentum and filtered velocity (Pandey et al., 2020), and (b) Favre filtered energy (Aluie 2013, Pandey et al., 2023). We also derive a Kármán-Howarth-Monin (KHM) relation using the momentum-velocity corr…

Focus and Context and LLMs | Taras' Blog on AI, Perf, Hacks
#AI

This https://arxiv.org/abs/2506.05142 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCL_…

Do Large Language Models Judge Error Severity Like Humans?
Large Language Models (LLMs) are increasingly used as automated evaluators in natural language generation, yet it remains unclear whether they can accurately replicate human judgments of error severity. In this study, we systematically compare human and LLM assessments of image descriptions containing controlled semantic errors. We extend the experimental framework of van Miltenburg et al. (2020) to both unimodal (text-only) and multimodal (text + image) settings, evaluating four error types: a…

This still nauseates me.
☑️ Oracle’s Larry Ellison joined Nov. 2020 call about contesting Trump’s loss - The Washington Post
https://www.washingtonpost.com/politics/2022/05/20/larry-ellison-oracle-trump-election-challenges/

Oracle’s Larry Ellison joined Nov. 2020 call about contesting Trump’s loss
The billionaire GOP donor, the biggest backer of Elon Musk’s attempted Twitter takeover, participated along with Fox’s Sean Hannity and Sen. Lindsey Graham, according to court filings and a participant.

“My dance with Covid makes my cancer look like a piece of cake.”
Sagt Jeff Bridges, der 2020 an Lymphdrüsenkrebs erkrankt ist und sich bei der Behandlung aber leider auch C19 eingefangen, hat nach nun bald 5 Jahren: “Covid kicked my ass pretty good.”
https://www.cnn.com/2025/05…

Jeff Bridges says he’s ‘feeling good’ nearly 5 years after cancer diagnosis, but dealing with ‘long-term’ Covid effects
Jeff Bridges is sharing some good news pertaining to his health.

Mon avis sur le premier #LDVELH dans l'univers de Rêve de Dragon.
https://ludovic.hirlimann.net/2020/11/le-bal-au-pont.html

Determining the orientation of radio antennas at the South Pole using Galactic noise measurements
Paras Koundal (for the IceCube Collaboration), Valeria Torres-Gomez (for the IceCube Collaboration)
https://arxiv.org/abs/2507.07224

Determining the orientation of radio antennas at the South Pole using Galactic noise measurements
The IceCube Neutrino Observatory is a multi-messenger observatory at the South Pole. As preparation for an enhancement of its surface array, IceTop, a prototype station consisting of elevated scintillation panels and radio antennas has been installed and is operating since 2020. The radio antennas detect emissions from cosmic-ray-induced air showers, and their precise orientation is essential for an accurate reconstruction of the air-shower properties. This work presents a novel method to deter…

Exoplanet Atmospheric Escape Observations with the Habitable Worlds Observatory
Leonardo A. Dos Santos, Eric D. Lopez, Luca Fossati, Antonio Garc\'ia Mu\~noz, Shingo Kameda, Munazza K. Alam, Keighley Rockcliffe, Seth Redfield, Yuichi Ito, Joshua Lothringer, Shreyas Vissapragada, Hannah R. Wakeford, Apurva V. Oza, Girish M. Duvvuri, Raissa Estrela, Ryoya Sakata, Chuanfei Dong, Ziyu Huang

Exoplanet Atmospheric Escape Observations with the Habitable Worlds Observatory
The Decadal Survey on Astronomy and Astrophysics 2020 highlights the importance of advancing research focused on discovering and characterizing habitable worlds. In line with this priority, our goal is to investigate how planetary systems evolve through atmospheric escape and to develop methods for identifying potentially Earth-like planets. By leveraging the ultraviolet (UV) capabilities of the Habitable Worlds Observatory (HWO), we can use transit spectroscopy to observe atmospheric escape in…

Symmetry and symmetry breaking in interpolation inequalities for two-dimensional spinors -- Preliminary results
Jean Dolbeault, Rupert L. Frank, Jonte Weixler
https://arxiv.org/abs/2506.08318

Symmetry and symmetry breaking in interpolation inequalities for two-dimensional spinors -- Preliminary results
On the two-dimensional Euclidean space, we study a spinorial analogue of the Caffarelli-Kohn-Nirenberg inequality involving weighted gradient norms. This (SCKN) inequality is equivalent to a spinorial Gagliardo-Nirenberg type interpolation inequality on a cylinder as well as to an interpolation inequality involving Aharonov-Bohm magnetic fields, which was analyzed in a paper of 2020. We examine the symmetry properties of optimal functions by linearizing the associated functional around radial m…

Truthful, Credible, and Optimal Auctions for Matroids via Blockchains and Commitments
Aadityan Ganesh, Qianfan Zhang
https://arxiv.org/abs/2507.04592 https…

Truthful, Credible, and Optimal Auctions for Matroids via Blockchains and Commitments
We consider a revenue-optimizing auctioneer in single-dimensional environments with matroid feasibility constraints. Akbarpour and Li (2020) argue that any revenue-optimal, truthful, and credible mechanism requires unbounded communication. Recent works (Ferreira and Weinberg, 2020; Essaidi et al., 2022; Chitra et al., 2024) circumvent their impossibility for the single-item setting through the use of cryptographic commitments and blockchains. We extend their results to matroid feasibility const…

{testthat} is great for automatic testing. Here are some tricks for the heavy user: #rstats

Dare I admit that I don't really understand what std::move() does? Of course I dare. #CPlusPlus
Reading the "Move: What it is, and how to use it" section on https://herbsutter.com/2020/02/17/move

Move, simply
C++ “move” semantics are simple, and unchanged since C++11. But they are still widely misunderstood, sometimes because of unclear teaching and sometimes because of a desire to view move…

From Nothing
#StrangeInspiration #NowPlaying
https://muz4now.com/2020/from-nothing-

From Nothing #NowPlaying
Stan Stewart - @muz4now

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…

How Broncos' Dondrea Tillman found 'light at the end of the tunnel' in uncommon NFL path https://www.nytimes.com/athletic/6466035/2025/07/03/dondrea-tillman-broncos-ufl-spring-league/

Everybody is wondering if some ICE agents are actually just bounty hunters, and that's possible but not super likely. What's much more likely is that a good chunk of the agents deployed today are the American equivalent of Wagner, which is currently named "Tripple Canopy" but you probably know as "Blackwater."
It's reasonably likely that the mercenaries who were grabbing people off the streets in Portland in 2020 are back at it for round 2. After all, this is just another opportunity for Trump to dump money in Erik Prince's pocket and wouldn't it be good for Trump to have a man on his side who happens to own a private army?
https://www.brennancenter.org/our-work/research-reports/inside-federal-protective-service-homeland-securitys-domestic-police

Impact of the WHO's 90-70-90 Strategy on HPV-Related Cervical Cancer Control: A Mathematical Model Evaluation in China
Hua Liu, Chunya Liu, Yumei Wei, Qibin Zhang, Jingyan Ma
https://arxiv.org/abs/2506.06405

Impact of the WHO's 90-70-90 Strategy on HPV-Related Cervical Cancer Control: A Mathematical Model Evaluation in China
In August 2020, the World Health Assembly approved the Global Strategy to eliminate cervical cancer, marking the first time that numerous countries committed to eliminating a form of cancer. China introduced the HPV vaccine in 2016 and has made significant advancements in both prevention and treatment strategies. However, due to the relatively late introduction of the vaccine, the burden of cervical cancer in China continues to rise. In light of this, we develop a compartmental model to assess …

Rovibrational computations for He$_2^ $ X$^ \ \Sigma_\mathrm{u}^ $ including non-adiabatic, relativistic and QED corrections
Edit M\'atyus, \'Ad\'am Marg\'ocsy
https://arxiv.org/abs/2506.19120

Rovibrational computations for He$_2^+$ X$^+\ Σ_\mathrm{u}^+$ including non-adiabatic, relativistic and QED corrections
We report the potential energy curve, the diagonal Born-Oppenheimer, non-adiabatic mass, relativistic, and leading-order QED corrections for the ground electronic state of the helium dimer cation; the higher-order QED and finite-nuclear size effects are also estimated. The computations are carried out with an improved error control and over a much broader configuration range compared to earlier work [D. Ferenc, V. I. Korobov, and E. Mátyus, Phys. Rev. Lett. 125, 213001 (2020)]. As a result, al…

Measurement of the Positive Muon Anomalous Magnetic Moment to 127 ppb
Aguillard, Albahri, Allspach, Annala, Badgley, Bae{\ss}ler, Bailey, Bailey, Barlas-Yucel, Barrett, Barzi, Bedeschi, Berz, Bhattacharya, Binney, Bloom, Bono, Bottalico, Bowcock, Braun, Bressler, Cantatore, Carey, Casey, Cauz, Chakraborty, Chapelain, Chappa, Charity, Chen, Cheng, Chislett, Chu, Chupp, Claessens, Confortini, Convery, Corrodi, Cotrozzi, Crnkovic, Dabagov, Debevec, Di Falco, Di Sciascio, Donati, Drendel, …

Measurement of the Positive Muon Anomalous Magnetic Moment to 127 ppb
A new measurement of the magnetic anomaly $a_μ$ of the positive muon is presented based on data taken from 2020 to 2023 by the Muon $g-2$ Experiment at Fermi National Accelerator Laboratory (FNAL). This dataset contains over 2.5 times the total statistics of our previous results. From the ratio of the precession frequencies for muons and protons in our storage ring magnetic field, together with precisely known ratios of fundamental constants, we determine $a_μ = 116\,592\,0710(162) \times 10^…

A Generic Construction of $q$-ary Near-MDS Codes Supporting 2-Designs with Lengths Beyond $q 1$
Hengfeng Liu, Chunming Tang, Zhengchun Zhou, Dongchun Han, Hao Chen
https://arxiv.org/abs/2506.16793

A Generic Construction of $q$-ary Near-MDS Codes Supporting 2-Designs with Lengths Beyond $q+1$
A linear code with parameters $[n, k, n - k + 1]$ is called maximum distance separable (MDS), and one with parameters $[n, k, n - k]$ is called almost MDS (AMDS). A code is near-MDS (NMDS) if both it and its dual are AMDS. NMDS codes supporting combinatorial $t$-designs have attracted growing interest, yet constructing such codes remains highly challenging. In 2020, Ding and Tang initiated the study of NMDS codes supporting 2-designs by constructing the first infinite family, followed by severa…

"Chart: UK misses tree-planting targets by forest the ‘size of Isle of Wight’"
#UK #UnitedKingdom #Trees #Environment

Chart: UK misses tree-planting targets by forest the ‘size of Isle of Wight’ - Carbon Brief
A forest area equivalent to the size of the Isle of Wight has not been planted because UK governments have failed to meet tree-planting goals since 2020.

Endlich die Plakette für die #Gasanlage bekommen
#Camping in #Italien kann los gehen! Der #Eriba

Endlich die Plakette für die Gasanlage bekommen
In 2020 hat der Eriba Nova 545 eine Gasdichtigkeitsprüfung bekommen. Zwei Jahre später wurde ich darauf hingewiesen, dass mein Druckminderer zu alt sei. Aber da die Gasdichtigkeitsprüfung da noch nicht wieder Pflicht war, habe ich eben keine machen lassen. Natürlich …

Endlich die Plakette für die Gasanlage bekommen<…

The liberal obsession with optics serves the right and persuades no one. There is literally an active ethnic cleansing happening in the US right now, and the only thing that matters is making that as hard as possible to carry out.
Anarchists destroying intelligence assets saves lives. Every escooter thrown at a cop car is one less escort for a goon too afraid to kidnap random brown people without being flanked by a branch full of bad apples. Spray paint is not violence. Vandalism is not violence. Community self defense in all forms is legitimate.
Make no mistake, these raids are about changing demographics. Demographic trends have been shifting blue for a long time, and the right has, for a long time, been blaming "white replacement." Conspiracy theory aside, Democrats have also been relying on the growth of black and brown voters as a block. The nuances of whiteness as an identity are lost on the current administration and their supporters. They see that "white people will be a minority by 2050" and equate that with the "end of Western Civilization."
The only way to "save Western Civilization" is to change those demographics. Forced birth and forced removal are two sides of the same white nationalist objective. Of course they can't have due process, because they need to be able to kidnap anyone who they see as a threat to their demographic future.
They don't care about optics. The plan is to murder away any threat and flood everyone else with propaganda. There is no mythical middle. There's no one unconvinced. They know this, but they win when democrats buy that myth and save the police the work of policing the protests.
If your protest is 90% "peaceful," they'll take pictures of the 10% that isn't. If it's 99% peaceful, they'll shoot rubber bullets and teargas until someone throws a brick and take 100 pictures from a dozen angles. If its 100% "peaceful" and no one can be provoked, they'll generate pictures with AI or photoshop like they did during the George Floyd uprising and the pictures from the CHOP/CHAZ. Do you have literally no memory?
#USPol #FiftyFiftyOne #50501movenent #resistance #NoKingsDay #NoKingsDayOfAction

Bird of the Day — Palm Warbler, Kansas 2020
#Birds #NaturePhotography #Nature #Wildlife

"Global oil demand to dip in 2030, first drop since COVID: IEA"
#Climate #ClimateChange #FossilFuels #Energy

Global oil demand to dip in 2030, first drop since COVID: IEA
Global oil demand will fall slightly in 2030, its first drop since the 2020 COVID pandemic, the International Energy Agency said Tuesday.