Tootfinder

Insel Poel bei Wismar, Ostsee , 2021 by me
nach einem Gewitter
Island Poel near by Wismar, Baltic Sea, Germany 2021 after a thunderstorm
#meermittwoch #seawednesday #naturism

Heute vor 4 Jahren: Am 22. Juli 2021 kam es im englischen #KKW #Heysham 1 zu einem Ausfall der 400-kV-Stromversorgung durch einen außerhalb des Kraftwerks gelegenen Transformators. Beide Reaktoren schalteten sich automatisch ab und die Notkühlung wurde musste aktiviert werden.

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

Als Windows 10 am 29. Juli 2015 auf den Markt kam, stand Microsoft vor einer Herausforderung: Die Nutzer waren mit Windows 8 unzufrieden und hielten an Windows 7 fest. Die Lösung? Zurück zu den Wurzeln!
Zum Artikel: https://heise.de/-10502275?wt_mc=sm.re

Sparrow, which uses AI to consolidate fragmented leave management processes, raised a $35M Series B led by Silver Lake Waterman, for $64M in total funding (Michael Nuñez/VentureBeat)
https://venturebeat.com/ai/sparrow-raises-35m-ser…

Sparrow raises $35M Series B to automate the employee leave management nightmare
Sparrow raises $35M Series B to scale AI-powered employee leave management platform that has grown 14x since 2021, serving 1,000+ companies and saving $200M in payroll costs.

Blue Lights, Insurmountable Debt, and the Affordances of its Erasure
https://ift.tt/Lgc6zOe
By Justin Martin In The Dawn of Everything: A New History of Humanity (2021), anthropologist David…
via Input 4 RELCFP

Blue Lights, Insurmountable Debt, and the Affordances of its Erasure
By Justin Martin In The Dawn of Everything: A New History of Humanity (2021), anthropologist David Graeber and Archeologist David Wengrow set out to offer a new way of thinking about the human orig…

Elon Musk’s team of Texas lobbyists during the 2025 legislative session did not rival those of huge energy and telecommunications companies,
which typically employ dozens of people to represent them.
⭐️But Musk and his companies still hired more lobbyists this year than any other since 2021, according to data from the Texas Ethics Commission.
❌Musk, the billionaire businessman behind carmaker Tesla and aerospace company SpaceX, influenced several new Texas laws this year. …

Elon Musk Hired a Dozen Texas Lobbyists This Year. State Law Keeps the Extent of Their Influence Under Wraps.
Musk, the billionaire businessman behind Tesla and SpaceX, influenced several new Texas laws this year. How his lobbyists came about these wins, however, is more of a mystery.

🌝 Reverse engineering the mysterious Up-Data Link Test Set from Apollo
http://www.righto.com/2025/07/reverse-engineering-mysterious-up-data.html
#electronics

Reverse engineering the mysterious Up-Data Link Test Set from Apollo
Back in 2021, a collector friend of ours was visiting a dusty warehouse in search of Apollo-era communications equipment. A box with NASA-st...

'Mac's capable of being a starter': Mac Jones being coached hard by 49ers in attempt to revive career https://www.espn.com/nfl/story/_/id/45591949/qb-mac-jones-49ers-attempt-revive-career-2021-nfl-draft

Pretty great to see this (via @…)
Seems like #Linux has seen some significant (300%) growth since 2021. In that time, I've gone from using just #Windows

Predicting Parkinson's Disease Progression Using Statistical and Neural Mixed Effects Models: A Comparative Study on Longitudinal Biomarkers
Ran Tong, Lanruo Wang, Tong Wang, Wei Yan
https://arxiv.org/abs/2507.20058

Predicting Parkinson's Disease Progression Using Statistical and Neural Mixed Effects Models: A Comparative Study on Longitudinal Biomarkers
Predicting Parkinson's Disease (PD) progression is crucial, and voice biomarkers offer a non-invasive method for tracking symptom severity (UPDRS scores) through telemonitoring. Analyzing this longitudinal data is challenging due to within-subject correlations and complex, nonlinear patient-specific progression patterns. This study benchmarks LMMs against two advanced hybrid approaches: the Generalized Neural Network Mixed Model (GNMM) (Mandel 2021), which embeds a neural network within a GLMM …

A direct approach to tree-guided feature aggregation for high-dimensional regression
Jinwen Fu, Aaron J. Molstad, Hui Zou
https://arxiv.org/abs/2507.19650 https://

A direct approach to tree-guided feature aggregation for high-dimensional regression
In high-dimensional linear models, sparsity is often exploited to reduce variability and achieve parsimony. Equi-sparsity, where one assumes that predictors can be aggregated into groups sharing the same effects, is an alternative parsimonious structure that can be more suitable in certain applications. Previous work has clearly demonstrated the benefits of exploiting equi-sparsity in the presence of ``rare features'' (Yan and Bien 2021). In this work, we propose a new tree-guided regularizatio…

Unveiling the Complex Jet Dynamics in the Blazar 2021 317 through Multi-Epoch VLBI Observations
Haitian Shang, Wei Zhao, Xiaoyu Hong, Leonid I. Gurvits, Ailing Zeng, Tao An, Xiaopeng Cheng
https://arxiv.org/abs/2505.23082

Unveiling the Complex Jet Dynamics in the Blazar 2021+317 through Multi-Epoch VLBI Observations
We present an investigation of the compact structure of the AGN 2021+317 based on multi-epoch Very Long Baseline Interferometry (VLBI) observations at 15, 22, and 43 GHz in the period from 2013 through 2024. The VLBI images show a core-jet structure extended to the south, with two stationary components in the northern region, one of which likely to be the core of the source. We also detected two new moving jet components (S4 and S5) in the observations of 2021. Based on these observational find…

Difference of weighted composition operators between Bergman spaces
Jiaoye Du, Cezhong Tong, Zicong Yang
https://arxiv.org/abs/2507.19735 https://arxiv.org…

Difference of weighted composition operators between Bergman spaces
We first obtain a simpler proof of the main results in [IEOT, {\bf 93}(2021), 17], which characterized the bounded and compact differences $C_{u,φ}-C_{v,ψ}$ of two weighted composition operators acting from $A_α^p(\mathbb{D})$ to $A_α^q(\mathbb{D})$. Then we get some characterizations for the difference of weighted composition operator belonging to Schatten class. Moreover, compact difference of a weighted composition operator and a unweighted composition operator on Hardy space is also stu…

Replaced article(s) found for math.DS. https://arxiv.org/list/math.DS/new
[1/1]:
- Contribution of the 2021 COVID-19 Vaccination Regime to COVID-19 Transmission and Control in Sout...
Tesfalem Abate Tegegn, Yibeltal Adane Terefe

Complementary Time-Space Tradeoff for Self-Stabilizing Leader Election: Polynomial States Meet Sublinear Time
Yuichi Sudo
https://arxiv.org/abs/2505.23649 …

Complementary Time-Space Tradeoff for Self-Stabilizing Leader Election: Polynomial States Meet Sublinear Time
We study the self-stabilizing leader election (SS-LE) problem in the population protocol model, assuming exact knowledge of the population size $n$. Burman, Chen, Chen, Doty, Nowak, Severson, and Xu (PODC 2021) showed that this problem can be solved in $O(n)$ expected time with $O(n)$ states. Recently, Gąsieniec, Grodzicki, and Stachowiak (PODC 2025) proved that $n+O(\log n)$ states suffice to achieve $O(n \log n)$ time both in expectation and with high probability (w.h.p.). If substantially m…

Blue Lights, Insurmountable Debt, and the Affordances of its Erasure
https://ift.tt/uNYyhKV
By Justin Martin In The Dawn of Everything: A New History of Humanity (2021), anthropologist David…
via Input 4 RELCFP

Blue Lights, Insurmountable Debt, and the Affordances of its Erasure
By Justin Martin In The Dawn of Everything: A New History of Humanity (2021), anthropologist David Graeber and Archeologist David Wengrow set out to offer a new way of thinking about the human orig…

"Critically endangered angel shark filmed off Welsh coast"
#UK #UnitedKingdom #Wales #Sharks

On the rate of convergence for Landau type Schr\"odinger Operators
Yucheng Pan, Wenchang Sun
https://arxiv.org/abs/2505.24568 https://

On the rate of convergence for Landau type Schrödinger Operators
We study the pointwise convergence of Landau type Schrödinger operators within the fractional Sobolev space $W^{s,p}(\mathbb R)$. Our results extend those established by Bailey (Rev. Mat. Iberoam., 29 (2): 531-546, 2013) and Yuan, Zhao and Zheng (Nonlinear Anal., 208: Paper No. 112312, 28, 2021). Furthermore, we also analyze the convergence rate of Landau type Schrödinger operators along curves and derive a sharp result for the case of convergence along vertical lines.

All-sky search for individual Primordial Black Hole bursts with LHAASO
Cao, Aharonian, Bai, Bao, Bastieri, Bi, Bi, Bian, Bukevich, Cai, Cao, Cao, Chang, Chang, Chen, Chen, Chen, Chen, Chen, Chen, Chen, Chen, Chen, Chen, Chen, Chen, Chen, Chen, Chen, Chen, Cheng, Cheng, Chu, Cui, Cui, Cui, Cui, Dai, Dai, Dai, , Diao, Dong, Duan, Fan, Fan, Fang, Fang, Fang, Feng, Feng, Feng, Feng, Feng, Feng, Feng, Gabici, Gao, Gao, Gao, Gao, Gao, Ge, Ge, Geng, Giacinti, Gong, Gou, Gu, Guo, Guo, Guo, Guo…

All-sky search for individual Primordial Black Hole bursts with LHAASO
Primordial Black Holes~(PBHs) are hypothetical black holes with a wide range of masses that formed in the early universe. As a result, they may play an important cosmological role and provide a unique probe of the early universe. A PBH with an initial mass of approximately $10^{15}$~g is expected to explode today in a final burst of Hawking radiation. In this work, we conduct an all-sky search for individual PBH burst events using the data collected from March 2021 to July 2024 by the Water Che…