Tootfinder

‘No way’: US labor watchdog refuses to bow to SpaceX, Amazon and Starbucks
Jennifer Abruzzo, the NLRB general counsel, accused some of the US’s largest corporations of “jumping on the bandwagon” in mounting legal challenges to the labor watchdog, which has found itself at the center of the ongoing battle between the companies and a wave of unionizing efforts by workers.
Attorneys representing Elon Musk’s SpaceX, Amazon, Trader Joe’s and Starbucks have all argued in recent months …

This https://arxiv.org/abs/2309.16297 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

The relation between the cool-core radius and the host galaxy clusters: thermodynamic properties and cluster mass
We present a detailed study of cool-core systems in a sample of four galaxy clusters (RXCJ1504.1-0248, A3112, A4059, and A478) using archival X-ray data from the Chandra X-ray Observatory. Cool cores are frequently observed at the centers of galaxy clusters and are considered to be formed by radiative cooling of the intracluster medium (ICM). Cool cores are characterized by a significant drop in the ICM temperature toward the cluster center. We extract and analyze X-ray spectra of the ICM to me…

Spin-mechanical coupling in 2D antiferromagnet CrSBr
Fan Fei, Yulu Mao, Wuzhang Fang, Wenhao Liu, Jack P. Rollins, Aswin L. N. Kondusamy, Bing Lv, Yuan Ping, Ying Wang, Jun Xiao
https://arxiv.org/abs/2404.15130

Spin-mechanical coupling in 2D antiferromagnet CrSBr
Spin-mechanical coupling is vital in diverse fields including spintronics, sensing and quantum transduction. Two-dimensional (2D) magnetic materials provide a unique platform for investigating spin-mechanical coupling, attributed to their mechanical flexibility and novel spin orderings. However, studying spin-mechanical coupling in 2D magnets presents challenges in probing mechanical deformation and thermodynamic properties change at nanoscale. Here we use nano opto-electro-mechanical interfero…

Enabling Stateful Behaviors for Diffusion-based Policy Learning
Xiao Liu, Fabian Weigend, Yifan Zhou, Heni Ben Amor
https://arxiv.org/abs/2404.12539 https:…

Enabling Stateful Behaviors for Diffusion-based Policy Learning
While imitation learning provides a simple and effective framework for policy learning, acquiring consistent actions during robot execution remains a challenging task. Existing approaches primarily focus on either modifying the action representation at data curation stage or altering the model itself, both of which do not fully address the scalability of consistent action generation. To overcome this limitation, we introduce the Diff-Control policy, which utilizes a diffusion-based model to lea…

This https://arxiv.org/abs/2404.10941 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Viscous shock waves of Burgers equation with fast diffusion and singularity
In this paper, we study the asymptotic stability of viscous shock waves for Burgers' equation with fast diffusion $u_t+f(u)_x=μ(u^m)_{xx}$ on $\mathbb{R} \times (0, +\infty)$ when $0u_+=0$, the equation with fast diffusion $(u^m)_{xx}=m\left(\frac{u_x}{u^{1-m}}\right)_x$ processes a strong singularity at $u_+=0$, which causes the stability study to be challenging. We observe that, there exist two different types of viscous shocks, one is the non-deg…

are politicians *ever* going to figure out that X is far less useful than Twitter used to be as a platform, because threads and profiles are now broken without an account, and they need to post their stances on issues somewhere else?
anyway... Ryan Khojasteh, challenging Brooke Jenkins for DA, has a good statement on the slap on the wrist given to a driver who killed a child at 4th & King:

Ryan Khojasteh (@ryankhoj) on X
Pedestrians and bicyclists don't feel safe in our city. Driver kills 4 year-old child and @BrookeJenkinsSF gives *very* lenient plea deal: 2 years probation & community service. I take traffic deaths very seriously. Looks like Jenkins' office was focused more on the protestors?

This https://arxiv.org/abs/2304.12752 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

X-ray Polarization of the Black Hole X-ray Binary 4U 1630-47 Challenges Standard Thin Accretion Disk Scenario
Large energy-dependent X-ray polarization degree is detected by the Imaging X-ray Polarimetry Explorer ({IXPE}) in the high-soft emission state of the black hole X-ray binary 4U 1630--47. The highly significant detection (at $\approx50σ$ confidence level) of an unexpectedly high polarization, rising from $\sim6\%$ at $2$ keV to $\sim10\%$ at $8$ keV, cannot be easily reconciled with standard models of thin accretion discs. In this work we compare the predictions of different theoretical models…

A call I got in 2018:
Him: Hello, I am calling about your computer.
Me: Which one? I have over 20!
Him: Do you use your computer for business or personal use?
Me: I use them for everything.
Him: This is about your home computer.
Me: I have over a dozen computers at home! Which one?
Him: This is about your home computer for personal use.
Me: I have a lot of computers I use, they run Linux, FreeBSD, and Mac OS X, but not Windows, as it suffers from poor…

Enabling Stateful Behaviors for Diffusion-based Policy Learning
Xiao Liu, Fabian Weigend, Yifan Zhou, Heni Ben Amor
https://arxiv.org/abs/2404.12539 https:…

Enabling Stateful Behaviors for Diffusion-based Policy Learning
While imitation learning provides a simple and effective framework for policy learning, acquiring consistent actions during robot execution remains a challenging task. Existing approaches primarily focus on either modifying the action representation at data curation stage or altering the model itself, both of which do not fully address the scalability of consistent action generation. To overcome this limitation, we introduce the Diff-Control policy, which utilizes a diffusion-based model to lea…

It is an old joke where they ask how do you tell if a politician is lying. With Trump it is as long as his heart beats. Wish the devil could say to him "Come on down"
https://twitter.com/i/status/1791961295249723492

Acyn (@Acyn) on X
Trump: And honestly, there's been no president since Abraham Lincoln, perhaps in a certain way including Abraham Lincoln, that has done more for the Black individual in this country than Donald J. Trump. Nobody. Not even close