Tootfinder

Child labor is making a comeback in the U.S. 
Several states are passing laws to weaken protections for child labor so that younger children may be gainfully employed for hours every day.
This is just one more “What century is this, again?” issue;
they seem to be becoming more common.

The Rev. Edgar Gardner Murphy And The Movement To End Child Labor
Child labor is making a comeback in the U.S.  Several states are passing laws to weaken protections for child labor so that younger children may be

An in-depth look at the US SEC's EDGAR system breach that was disclosed in 2017, as one of the key hackers, Olga Kuprina, says EDGAR remains a soft target (Liam Vaughan/Bloomberg)

🇺🇦 #NowPlaying on KEXP's #MorningShow
Tears for Fears:
🎵 Head Over Heels / Broken (live)
#TearsforFears
https://dirtyneedlz.bandcamp.com/track/head-over-heels-broken-dirty-needlz-brazil-rework
https://open.spotify.com/track/4EYDUxcERxthPxpbs6mTRd

Distinguishing Orbiting and Infalling Dark Matter Particles with Machine Learning
Ze'ev Vladimir, Calvin Osinga, Benedikt Diemer, Edgar M. Salazar, Eduardo Rozo
https://arxiv.org/abs/2506.09146

Distinguishing Orbiting and Infalling Dark Matter Particles with Machine Learning
Dark matter halos are typically defined as spheres that enclose some overdensity, but these sharp, somewhat arbitrary boundaries introduce non-physical artifacts such as backsplash halos, pseudo-evolution, and an incomplete accounting of halo mass. A more physically motivated alternative is to define halos as the collection of particles that are physically orbiting within their potential well. However, existing methods to classify particles as orbiting or infalling suffer from trade-offs betwee…

Disorder-induced suppression of superconductivity in infinite-layer nickelates
Abhishek Ranna, Romain Grasset, Martin Gonzalez, Kyuho Lee, Bai Yang Wang, Edgar Abarca Morales, Florian Theuss, Zuzanna H. Filipiak, Michal Moravec, Marcin Konczykowski, Harold Y. Hwang, Andrew P. Mackenzie, Berit H. Goodge
https://arxiv.org/abs/2506…

Disorder-induced suppression of superconductivity in infinite-layer nickelates
The pairing symmetry of superconducting infinite-layer nickelates is a fundamental yet experimentally challenging question. We employ high-energy electron irradiation to induce disorder in superconducting Nd$_{0.825}$Sr$_{0.175}$NiO$_2$ thin films and examine the impact of pair-breaking defects on superconductivity and elucidate the nature of the superconducting gap. Our measurements reveal a complete suppression of superconductivity with increasing disorder, suggesting an unconventional, sign-…

Gina Ortiz Jones, a Progressive, Is Elected San Antonio's Mayor (Edgar Sandoval/New York Times)
https://www.nytimes.com/2025/06/07/us/gina-ortiz-jones-elected-san-antonio-mayor.html
http://www.memeorandum.com/250608/p32#a250608p32

This https://arxiv.org/abs/2412.09080 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

On the number of modes of Gaussian kernel density estimators
We consider the Gaussian kernel density estimator with bandwidth $β^{-\frac12}$ of $n$ iid Gaussian samples. Using the Kac-Rice formula and an Edgeworth expansion, we prove that the expected number of modes on the real line scales as $Θ(\sqrt{β\logβ})$ as $β,n\to\infty$ provided $n^c\lesssim β\lesssim n^{2-c}$ for some constant $c>0$. An impetus behind this investigation is to determine the number of clusters to which Transformers are drawn in a metastable state.

Steinmeier für mehr gemeinsame Rüstungsproduktion in Europa
Bundespräsident Frank-Walter Steinmeier hat angesichts der Bedrohung durch Russland eine engere Zusammenarbeit Europas bei der Rüstungsproduktion und -beschaffung verlangt. "Wir müssen mehr in die Verteidigungsindustrie investieren", sagte er bei einer Pressekonferenz mit dem lettischen Staatspräsidenten Edgars Rinkevics in Riga.
Man habe im Laufe des russischen Ang…
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Ukraine-Liveblog: ++ Steinmeier fordert mehr gemeinsame Rüstung ++
Bundespräsident Steinmeier hat sich für mehr europäische Zusammenarbeit in der Rüstungsindustrie ausgesprochen. US-Präsident Trump hat angekündigt, der Ukraine nach kurzem Stopp wieder Waffen zu liefern.

Ultra-high-gain water-window X-ray laser driven by plasma photocathode wakefield acceleration
Lily H. A. Berman, David Campbell, Edgar Hartmann, Thomas Heinemann, Thomas Wilson, Bernhard Hidding, Ahmad Fahim Habib
https://arxiv.org/abs/2507.06403

Ultra-high-gain water-window X-ray laser driven by plasma photocathode wakefield acceleration
X-ray free-electron lasers are large and complex machines, limited by electron beam brightness. Here we show through start-to-end simulations how to realise compact, robust and tunable X-ray lasers in the water window, based on ultra-bright electron beams from plasma wakefield accelerators. First, an ultra-low-emittance electron beam is released by a plasma photocathode in a metre-scale plasma wakefield accelerator. By tuning the beam charge, space-charge forces create a balance between beam fi…

Lettlands Präsident begrüßt mehr deutsche Führungsverantwortung
Lettlands Staatspräsident Edgars Rinkevics hält es für angemessen und richtig, dass Deutschland angesichts der geopolitischen Konfrontation mit Russland mehr Verantwortung in EU und NATO übernehmen will. "Deutschland ist eine europäische Großmacht und wirtschaftliches Zentrum. Daher ist es folgerichtig, dass Deutschland eine größere Rol…
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Verteidigungsunterricht als Schulfach: Lettland will gerüstet sein
Verteidigungsunterricht als Schulfach: Die Aufrüstung beginnt in Lettland schon im Klassenzimmer, seit diesem Schuljahr verpflichtend. Aber die Abgrenzung zum Nachbarn Russland geht noch viel weiter.