Tootfinder

Iran Builds Up Near Weapons-Grade Uranium Stockpile Despite Nuclear Talks (Laurence Norman/Wall Street Journal)
https://www.wsj.com/world/middle-east/iran-builds-up-near-weapons-grade-uranium-stockpile-despite-nuclear-talks-2f371dae?st=kYET6n&reflink=article_copyURL_share
http://www.memeorandum.com/250531/p27#a250531p27

From ⁨⁨⁨⁨⁨#AnnafromUkraine⁩⁩⁩⁩⁩ @AnnafromUkraine@youtube.com
VLADIVOSTOK ON FIRE: EXPLOSIONS NEAR DESANTNAYA BAY Vlog 1059: War in #Ukraine
Explosions near the "#Desantnaya" Bay …

Optimizing Connectivity and Scheduling of Near/Far Field Users in Massive MIMO NOMA System
Ziad Qais Al-Abbasi
https://arxiv.org/abs/2505.23259 https://

Optimizing Connectivity and Scheduling of Near/Far Field Users in Massive MIMO NOMA System
It is envisioned that the next generations of wireless communication environment will be characterized with dense traffic demand due to the prediction that there will be large numbers of active users. Hence, it is important to find a solution to deal with such dense numbers of users. This paper investigates optimizing the connectivity and users scheduling to improve the performance of near and far field users in a downlink, multiuser, massive MIMO-NOMA system. For the considered system model, c…

Crowdsourced map of Flock ALPRs (automated license plate readers):
https://deflock.me/map

DeFlock
Spot, map, and resist automated license plate readers (ALPRs) near you.

Indivisible And Partners Announce
'NO KINGS' Nationwide
DAY OF DEFIANCE!
Saturday, June 14th
STAND TOGETHER !!
with 3.5 % of the populace = 8 million
To find an event near you
Visit https://nokings.org

No Kings
On June 14—Flag Day—Donald Trump wants tanks in the street and a made-for-TV display of dominance for his birthday. A spectacle meant to look like strength. But real power isn’t staged in Washington. It rises up everywhere else.

Kekul\'e order from diffuse nesting near higher-order Van Hove points
Jonas Beck, Jonathan Bodky, Matteo D\"urrnagel, Ronny Thomale, Julian Ingham, Lennart Klebl, Hendrik Hohmann
https://arxiv.org/abs/2505.22725

Kekulé order from diffuse nesting near higher-order Van Hove points
Translation symmetry-breaking order is assumed to be suppressed by the lack of Fermi surface nesting near certain higher-order Van Hove singularities (HOVHS). We show the anisotropic band-flattening inherent to such HOVHS, combined with broadening of the Fermi surface due to elevated critical temperatures, results in the Fermi surface becoming approximately nested at a wavevector unrelated to the precise shape of the Fermi surface - leading to a $\sqrt{3}\times\sqrt{3}$ Kekulé density wave for…

As a security community we have to make sure that people know about this vulnerability. Right now it's pretty easy to thwart, _don't keep your keys near the front door_. It's a simple countermeasure, but people have to see footage like this to understand. The threat is real and the gear to do this is pretty cheap.
https://www.

Police issue warning after Breckland keyless car theft
Footage shows one thief in a balaclava approaching the house before the car engine starts.

A #cat near #Szczecin Dunikowo train stop.

@… @… This is how I see London too, and I miss it very much.
(I do not miss the tube.)
Sadly, I foresee very little long-haul travel in my near future, but when I get a chance, Toronto (and other parts of Canada) is high …

Nice climb up the grade over Breckenheim past Wildsachsen to Bremthal, then back—woosh!—down to Auringen, through Medenbach, and across the multi-use recreation paths to Nordenstadt (home). Taunus foothills, greater Wiesbaden, Hesse, Germany.
#seniorfitness #nogym

This https://arxiv.org/abs/2406.07612 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Optical and near-infrared spectroscopy of quasars at $z>6.5$: public data release and composite spectrum
We present optical and near-infrared (NIR) spectroscopic observations for a sample of $45$ quasars at $6.50 < z \leq 7.64$ with absolute magnitudes at $1450$ Å in the range $-28.82 \leq M_{1450} \leq -24.13$ and their composite spectrum. The median redshift and $M_{1450}$ of the quasars in the sample are $z_{\rm{median}}=6.71$ and $M_{1450,\rm{median}} \simeq -26.1$, respectively. The NIR spectra are taken with echelle spectrographs, complemented with additional data from optical long slit ins…

Natura Urbana VI 🏡
城市自然 VI 🏡
📷 Nikon FE
🎞️Ilford FP4 Plus, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

Yiding Cao Geld mit PayPal.Me senden
Folgen Sie dem Link PayPal.Me/dingsterdingster und geben Sie den Betrag ein. Es ist bequem und sicher. Sie haben noch kein PayPal-Konto? Kein Problem.

Dallas Cowboys' salary cap space ahead of post-June 1 releases https://www.si.com/nfl/cowboys/news/dallas-cowboys-salary-cap-space-ahead-nfl-post-june-1-releases

As a security community we have to make sure that people know about this vulnerability. Right now it's pretty easy to thwart, _don't keep your keys near the front door_. It's a simple countermeasure, but people have to see footage like this to understand. The threat is real and the gear to do this is pretty cheap.
https://www.

Police issue warning after Breckland keyless car theft
Footage shows one thief in a balaclava approaching the house before the car engine starts.

Solvated electrons in polar liquids as epsilon-near-zero materials tunable in the terahertz frequency range
Matthias Runge, Michael Woerner, Denys I. Bondar, Thomas Elsaesser
https://arxiv.org/abs/2505.22198

Solvated electrons in polar liquids as epsilon-near-zero materials tunable in the terahertz frequency range
Electrons in polar liquids give rise to a polaron resonance at a terahertz (THz) frequency ν_0 depending on electron concentration. The impact of this resonance on light propagation is studied in experiments, where a femtosecond pump pulse generates electrons via multiphoton ionization and a THz probe pulse propagated through the excited sample is detected in a phase-resolved way. We observe a behavior characteristic for epsilon-near-zero (ENZ) materials with strongly modified phase and group …

This https://arxiv.org/abs/2304.11476 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

Maximum Spherical Mean Value (mSMV) Filtering for Whole Brain Quantitative Susceptibility Mapping
To develop a tissue field filtering algorithm, called maximum Spherical Mean Value (mSMV), for reducing shadow artifacts in quantitative susceptibility mapping (QSM) of the brain without requiring brain tissue erosion. Residual background field is a major source of shadow artifacts in QSM. The mSMV algorithm filters large field values near the border, where the maximum value of the harmonic background field is located. The effectiveness of mSMV for artifact removal was evaluated by comparing wi…

Check out my walk on Strava.
https://www.strava.com/activities/14629716750

Stroll through the Zoo | Strava
View Falko Zurell's walk on 29. Mai 2025 | Strava

This https://arxiv.org/abs/2505.13476 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Unified Structural Embedding of Orbifold Sigma Models
This paper introduces a unified structural embedding framework for orbifold sigma models that systematically incorporates twisted sectors, singularities, and smooth regions into a single algebraic object. Traditional approaches to orbifold theories often treat sectors separately, requiring ad hoc regularizations near singularities and failing to capture inter-sector interactions under renormalization group flow. The framework presented herein resolves these limitations through the construction …

Wav2Sem: Plug-and-Play Audio Semantic Decoupling for 3D Speech-Driven Facial Animation
Hao Li, Ju Dai, Xin Zhao, Feng Zhou, Junjun Pan, Lei Li
https://arxiv.org/abs/2505.23290

Wav2Sem: Plug-and-Play Audio Semantic Decoupling for 3D Speech-Driven Facial Animation
In 3D speech-driven facial animation generation, existing methods commonly employ pre-trained self-supervised audio models as encoders. However, due to the prevalence of phonetically similar syllables with distinct lip shapes in language, these near-homophone syllables tend to exhibit significant coupling in self-supervised audio feature spaces, leading to the averaging effect in subsequent lip motion generation. To address this issue, this paper proposes a plug-and-play semantic decorrelation …

This https://arxiv.org/abs/2502.03085 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

How probable is the Lyman-$α$ damping wing in the spectrum of the redshift z = 5.9896 quasar ULAS J0148+0600?
The shape of the Ly-$α$ transmission in the near zone of the redshift $z=5.9896$ quasar ULAS J0148$+$0600 (hereafter J0148) is consistent with a damping wing arising from an extended neutral hydrogen island in the diffuse intergalactic medium (IGM). Here we use simulations of late-ending reionisation from Sherwood-Relics to assess the expected incidence of quasars with Ly-$α$ and Ly-$β$ absorption similar to the observed J0148 spectrum. We find a late end to reionisation at $z=5.3$ is a nece…

Nice climb up the grade over Breckenheim past Wildsachsen to Bremthal, then back—woosh!—down to Auringen, through Medenbach, and across the multi-use recreation paths to Nordenstadt (home). Taunus foothills, greater Wiesbaden, Hesse, Germany.
#seniorfitness #nogym

This https://arxiv.org/abs/2502.05689 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Transition from Regular Black Holes to Wormholes in Covariant Effective Quantum Gravity: Scattering, Quasinormal Modes, and Hawking Radiation
Utilizing the Hamiltonian constraints approach, a quantum-corrected solution has been derived \cite{Zhang:2024ney}, which describes either a regular black hole or a traversable wormhole, contingent upon the value of the quantum parameter. In this work, we compute the quasinormal modes associated with axial gravitational and test fields' perturbations of these objects. We see that due to quantum corrections near the event horizon, the first several overtones deviate from their Schwarzschild valu…

Optimization and variability can coexist
Marianne Bauer, William Bialek, Chase Goddard, Caroline M. Holmes, Kamesh Krishnamurthy, Stephanie E. Palmer, Rich Pang, David J. Schwab, Lee Susman
https://arxiv.org/abs/2505.23398

Optimization and variability can coexist
Many biological systems perform close to their physical limits, but promoting this optimality to a general principle seems to require implausibly fine tuning of parameters. Using examples from a wide range of systems, we show that this intuition is wrong. Near an optimum, functional performance depends on parameters in a "sloppy'' way, with some combinations of parameters being only weakly constrained. Absent any other constraints, this predicts that we should observe widely varying parameters,…

This https://arxiv.org/abs/2504.08241 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Onset of thermo-convective instabilities in two-layer binary fluid systems
The current work analyses the onset characteristics of buoyancy and thermocapillary-driven instabilities in two-layer binary fluid systems near their upper critical solution temperature (UCST). The dynamics of the binary fluids are modelled here via a diffuse interface approach (phase-field method) involving a modified free energy formulation to capture the temperature-dependent solubility and interfacial width. Using spectral collocation-based discretization and a suitable grid mapping strateg…

Followerpower if you're from Sweden: I'm trying to figure out how to get around some places near Stockholm. There are some bus stops in a nature reserve, e.g., Järflottvägen (part of Nynäshamn), but the swedish rail webpage sj.se does not find this bus stop. Several sources say there are busses stopping there (lines 848,852), but only thirdparty sources, none look like the bus operator. Should I assume this bus is operating, and where would I find its official timetable and ticket in…

MOA-2022-BLG-091Lb and KMT-2024-BLG-1209Lb: Microlensing planets detected through weak caustic-crossing signals
Cheongho Han, Chung-Uk Lee, Andrzej Udalski, Ian A. Bond, Hongjing Yang, Michael D. Albrow, Sun-Ju Chung, Andrew Gould, Youn Kil Jung, Kyu-Ha Hwang, Yoon-Hyun Ryu, Yossi Shvartzvald, In-Gu Shin, Jennifer C. Yee, Weicheng Zang, Tanagodchaporn Inyanya, Sang-Mok Cha, Doeon Kim, Dong-Jin Kim, Seung-Lee Kim, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge, Przemek Mr…

MOA-2022-BLG-091Lb and KMT-2024-BLG-1209Lb: Microlensing planets detected through weak caustic-crossing signals
The light curves of the microlensing events MOA-2022-BLG-091 and KMT-2024-BLG-1209 exhibit anomalies with very similar features. These anomalies appear near the peaks of the light curves, where the magnifications are moderately high, and are distinguished by weak caustic-crossing features with minimal distortion while the source remains inside the caustic. To achieve a deeper understanding of these anomalies, we conducted a comprehensive analysis of the lensing events. We carried out binary-len…

Natura Urbana VI 🏡
城市自然 VI 🏡
📷 Nikon FE
🎞️Ilford FP4 Plus, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

Yiding Cao Geld mit PayPal.Me senden
Folgen Sie dem Link PayPal.Me/dingsterdingster und geben Sie den Betrag ein. Es ist bequem und sicher. Sie haben noch kein PayPal-Konto? Kein Problem.

This https://arxiv.org/abs/2408.11158 has been replaced.
initial toot: https://mastoxiv.page/@ar…

A Transition Edge Sensor Operated in Coincidence with a High Sensitivity Athermal Phonon Sensor for Photon Coupled Rare Event Searches
Experimental searches for axions or dark photons that couple to the standard model photon require photosensors with low noise, broadband sensitivity, and near zero backgrounds. Here, we introduce an experimental architecture, in which a small photon sensor, in our case a Transition Edge Sensor (TES) with a photon energy resolution $σ_γ= 368.4 \pm 0.4$ meV, is colocated on the same substrate as a large high sensitivity athermal phonon sensor (APS) with a phonon energy resolution $σ_\mathrm{ph…

A Descriptor Is All You Need: Accurate Machine Learning of Nonadiabatic Coupling Vectors
Jakub Martinka, Lina Zhang, Yi-Fan Hou, Miko{\l}aj Martyka, Ji\v{r}\'i Pittner, Mario Barbatti, Pavlo O. Dral
https://arxiv.org/abs/2505.23344

A Descriptor Is All You Need: Accurate Machine Learning of Nonadiabatic Coupling Vectors
Nonadiabatic couplings (NACs) play a crucial role in modeling photochemical and photophysical processes with methods such as the widely used fewest-switches surface hopping (FSSH). There is therefore a strong incentive to machine learn NACs for accelerating simulations. However, this is challenging due to NACs' vectorial, double-valued character and the singularity near a conical intersection seam. For the first time, we design NAC-specific descriptors based on our domain expertise and show tha…

My man here doing the late night grocery shopping in his bathrobe. 😂 🤔 👏

DECA: A Near-Core LLM Decompression Accelerator Supporting Out-of-Order Invocation
Gerasimos Gerogiannis (Intel Corporation,University of Illinois at Urbana-Champaign), Stijn Eyerman (Intel Corporation), Evangelos Georganas (Intel Labs), Wim Heirman (Intel Corporation), Josep Torrellas (University of Illinois at Urbana-Champaign)
https://

DECA: A Near-Core LLM Decompression Accelerator Supporting Out-of-Order Invocation
To alleviate the memory bandwidth bottleneck in Large Language Model (LLM) inference workloads, weight matrices are stored in memory in quantized and sparsified formats. Hence, before tiles of these matrices can be processed by in-core generalized matrix multiplication (GeMM) hardware engines, they need to be dequantized and de-sparsified. This is currently performed in software with vector operations. Unfortunately, this approach delivers only modest performance. Moreover, it is hard to unders…

Numerical asymptotics of near-axis expansions of quasisymmetric magnetohydrostatic equilibria with anisotropic pressure
Lanke Fu, Eduardo Rodriguez, Rory Conlin, Amitava Bhattacharjee
https://arxiv.org/abs/2505.20475

Numerical asymptotics of near-axis expansions of quasisymmetric magnetohydrostatic equilibria with anisotropic pressure
Quasisymmetry (QS) is a property of special magnetic configurations, where the magnetic field strength, but not necessarily the full vector field, has a direction of symmetry. QS leads to reduced neoclassical transport and thus can be a desirable property in stellarator design. The Garren-Boozer (GB) conundrum has been interpreted to mean that globally quasisymmetric magnetohydrostatic (MHS) equilibria, other than axisymmetric solutions, with isotropic pressure do not exist. When expanded as po…

Emerging applications of neurotechnology and their implications for EU governance #BCI

Emerging applications of neurotechnology and their implications for EU governance
This report sums up recent developments in neurotechnology, that is, technology that can read and modify activity from the central nervous system. Some devices record information from the brain, and others deliver stimulation to the brain (and some do both). These technologies are rapidly advancing and are likely to have a profound impact on various aspects of society. In the near future, neurotechnology is set to revolutionise the way we approach a range of policy areas, from healthcare, educa…

"'Holy grail' of limitless clean energy could be here by 2040"
#UK #UnitedKingdom #Energy

'Holy grail' of limitless clean energy could be here by 2040
Hopes are rising of providing near-limitless clean energy in just 15 years

I have a garage spot near my apartment that I own but I do not own a car. What's in my spot? Some of my bikes of course.
This is a nice demo of how much more space efficient cycles are compared to cars, even though I have a cargo bike, penny farthing and a tall bike here.
P.S. That car on the left, yes he had moved it as far away from my penny as possible! 🤣

This https://arxiv.org/abs/2505.22567 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

A black hole in a near-pristine galaxy 700 million years after the Big Bang
The recent discovery of a large number of massive black holes within the first two billion years after the Big Bang, as well as their peculiar properties, have been largely unexpected based on the extrapolation of the properties of luminous quasars. These findings have prompted the development of several theoretical models for the early formation and growth of black holes, which are, however, difficult to differentiate. We report the metallicity measurement around a gravitationally lensed massi…

AISHELL-5: The First Open-Source In-Car Multi-Channel Multi-Speaker Speech Dataset for Automatic Speech Diarization and Recognition
Yuhang Dai, He Wang, Xingchen Li, Zihan Zhang, Shuiyuan Wang, Lei Xie, Xin Xu, Hongxiao Guo, Shaoji Zhang, Hui Bu, Wei Chen
https://arxiv.org/abs/2505.23036…

AISHELL-5: The First Open-Source In-Car Multi-Channel Multi-Speaker Speech Dataset for Automatic Speech Diarization and Recognition
This paper delineates AISHELL-5, the first open-source in-car multi-channel multi-speaker Mandarin automatic speech recognition (ASR) dataset. AISHLL-5 includes two parts: (1) over 100 hours of multi-channel speech data recorded in an electric vehicle across more than 60 real driving scenarios. This audio data consists of four far-field speech signals captured by microphones located on each car door, as well as near-field signals obtained from high-fidelity headset microphones worn by each spea…

This https://arxiv.org/abs/2505.10537 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csNI_…

LibIQ: Toward Real-Time Spectrum Classification in O-RAN dApps
The O-RAN architecture is transforming cellular networks by adopting RAN softwarization and disaggregation concepts to enable data-driven monitoring and control of the network. Such management is enabled by RICs, which facilitate near-real-time and non-real-time network control through xApps and rApps. However, they face limitations, including latency overhead in data exchange between the RAN and RIC, restricting real-time monitoring, and the inability to access user plain data due to privacy a…

The photographer of the image I use as a background on Trello, is Alex Knight from Pexels: https://www.pexels.com/photo/people-near-buildings-during-nighttime-with-lights-2816903/
I would love to visit Tokyo... nighttime there looks magical to me.

Effects of thrust, tip-speed ratio, and time variations on wind-turbine wakes at high Reynolds numbers
Nathaniel J. Wei, Adina Y. Fleisher, John W. Kurelek, Marcus N. Hultmark
https://arxiv.org/abs/2505.22788

Effects of thrust, tip-speed ratio, and time variations on wind-turbine wakes at high Reynolds numbers
The evolution of rotor wakes is an important problem for a wide range of wind-energy and aerodynamic applications, and is of particular relevance to dynamic wake control strategies for wind farms. This study aims to clarify the influence of turbine thrust and tip-speed ratio on tip-vortex breakdown and the evolution of the near wake. Scaling arguments show that these parameters contribute to the wake dynamics in distinct ways, and that neither thrust nor tip-speed ratio are alone sufficient to …

This https://arxiv.org/abs/2503.00532 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepe…

Performance and radiation damage mitigation strategy for silicon photomultipliers on LEO space missions
Space missions require lightweight, low-power consuming, radiation-tolerant components. Silicon photomultipliers are increasingly used for detecting near-UV, optical, and infrared light in space due to their compact design, low cost, low power consumption, robustness, and high photo-detection efficiency, which makes them sensitive to single photons. Although SiPMs outperform traditional photomultiplier tubes in many areas, concerns about their radiation tolerance and noise remain. In this study…

Apache Point rapid response characterization of primitive pre-impact detection asteroid 2024 RW$_1$
Carl Ingebretsen, Bryce T. Bolin, Robert Jedicke, Peter Vere\v{s}, Christine H. Chen, Carey M. Lisse, Russet McMillan, Torrie Sutherland, Amanda J. Townsend
https://arxiv.org/abs/2505.23736

Apache Point rapid response characterization of primitive pre-impact detection asteroid 2024 RW$_1$
Pre-impact detection asteroids (PIDAs) may be detected only a few hours before their impact with Earth, providing a brief opportunity to characterize them before impact. We describe the characterization of PIDA 2024 RW$_1$, which was discovered by the Catalina Sky Survey on 2024 September 4 at 05:43 UTC, before it entered the atmosphere near the northern Philippines at 16:39 UTC. We observed 2024 RW$_1$ with the Astrophysical Research Consortium Telescope Imaging Camera on the Apache Point Astr…

Rolling, sliding and trapping of driven particles in square obstacle lattices
Galor Geva, Arin Escobar, Paula Magrinya, Pablo Llombart, Alfredo Alexander-Katz, Laura R. Arriaga, Juan L. Aragones
https://arxiv.org/abs/2505.21702

Rolling, sliding and trapping of driven particles in square obstacle lattices
Transport phenomena in complex and dynamic microscopic environments are fundamentally shaped by hydrodynamic interactions. In particular, microparticle transport in porous media is governed by the delicate interplay between particle-substrate friction and pressure forces. Here, we systematically investigate the motion of externally driven rotating magnetic microparticles near a substrate patterned with a square lattice of cylindrical obstacles, a model porous medium. Remarkably, we observe a re…

$\eta_c\eta_c$ and $J/\psi J/\psi$ scatterings from lattice QCD
Geng Li, Chunjiang Shi, Ying Chen, Wei Sun
https://arxiv.org/abs/2505.23220 https://…

$η_cη_c$ and $J/ψJ/ψ$ scatterings from lattice QCD
We investigate the $J^{PC}=(0,2)^{++}$ $η_c η_c$ and $J/ψJ/ψ$ scatterings in $N_f=2$ lattice QCD at two pion masses $m_π\approx 420$\,MeV and 250\,MeV. The quark field smearing scheme used in the distillation method strongly suppresses high-momentum states, thereby limiting the maximum accessible center-of-mass energy in this study to approximately 6.6\,GeV. Given the observed near-decoupling of the $η_cη_c$ and $J/ψJ/ψ$ channels, we analyze their scattering properties using the single…

This https://arxiv.org/abs/2505.09545 has been replaced.
initial toot: https://mastoxiv.page/@ar…

TorchGDM: A GPU-Accelerated Python Toolkit for Multi-Scale Electromagnetic Scattering with Automatic Differentiation
We present "torchGDM", a numerical framework for nano-optical simulations based on the Green's Dyadic Method (GDM). This toolkit combines a hybrid approach, allowing for both fully discretized nano-structures and structures approximated by sets of effective electric and magnetic dipoles. It supports simulations in three dimensions and for infinitely long, two-dimensional structures. This capability is particularly suited for multi-scale modeling, enabling accurate near-field calculations within…

Has to be one of the absolute best 1hr and 33mins ever produced on a single album. Incredible variety, and every single song a damn near masterpiece.
Not normally on Apple Music but because I had it in my old CD collection way back in the day, (bought on Boxing Day 1994 I think?) it lives on.
AND ITS JUST THE 3RD DISC OF 4.
So yes, also the best CD set ever created. 😂
#BobMarley #SongsOfFreedom #music #1990s #album #GOAT

Quantum multicriticality and emergent symmetry in Dirac systems with two order parameters at three-loop order
Max Uetrecht, Igor F. Herbut, Michael M. Scherer, Emmanuel Stamou, Tom Steudtner
https://arxiv.org/abs/2505.22723

Quantum multicriticality and emergent symmetry in Dirac systems with two order parameters at three-loop order
Two-dimensional materials with interacting Dirac excitations can host quantum multicritical behavior near the phase boundaries of the semimetallic and two-ordered phases. We study such behavior in Gross--Neveu--Yukawa field theories where $N_f$ flavors of Dirac fermions are coupled to two order-parameter fields with $SO(N_A)$ and $SO(N_B)$ symmetry, respectively. To that end, we employ the perturbative renormalization group up to three-loop order in $4-ε$ spacetime dimensions. We distinguish t…

Transparent and heat-insulation bionic hydrogel-based smart window system for long-term cooling and waste heat collection
Qianwang Ye, Hanqing Dai, Yukun Yan, Liwei Wang, Xinlin Du, Yimeng Wang, Zhile Han, Wanlu Zhang, Ruiqian Guo
https://arxiv.org/abs/2505.23213

Transparent and heat-insulation bionic hydrogel-based smart window system for long-term cooling and waste heat collection
With the energy crisis and climate warming, the position of a new generation of smart windows is becoming increasingly important, and materials or systems that can have high blocking of near-infrared (NIR) and ultraviolet (UV) and high transmittance of visible light (VIS) are needed. Currently, it is difficult for smart heat-insulation materials to achieve high transmittance of VIS, good UV isolation, outstanding cooling and thermal insulation, and excellent waste heat collection. Here, we desi…

We're spending a week staying at a little cottage in the countryside outside Penrith near the Lake District. It's lovely and peaceful here although the neighbours are very nosy!

Ukraine detains alleged Russian spies who used dash cams to guide missile strikes https://therecord.media/ukraine-detains-russian-spies-using-dashcams-missile-strikes

The near-total repeal of the #InflationReductionAct, as passed by the US House, would increase USA carbon emissions by 150 MtCO2eq/year by 2030 (for power generation alone) and 1 Gt/y by 2035. (While also increasing costs nearly everywhere.)
http…

📉 Chart of the Week: 'Dire Picture' for BTC Miners as Revenue Flatlines Near Record Low
https://www.coindesk.com/business/2025/04/20/chart-of-the-day-dire-picture-for-btc-miners-as-revenue-flatlines-near-r…

Chart of the Week: 'Dire Picture' for BTC Miners as Revenue Flatlines Near Record Low
Despite bitcoin trading around $84,000, miner revenue has decreased due to the recent halving event and rising operational costs.

Traffic is very slow. We will be making several trips to a Goodwill type location in the near future.

Euclid: Early Release Observations of ram-pressure stripping in the Perseus cluster. Detection of parsec scale star formation with in the low surface brightness stripped tails of UGC 2665 and MCG 07-07-070
Koshy George, et al.
https://arxiv.org/abs/2505.23342

Euclid: Early Release Observations of ram-pressure stripping in the Perseus cluster. Detection of parsec scale star formation with in the low surface brightness stripped tails of UGC 2665 and MCG +07-07-070
Euclid is delivering optical and near-infrared imaging data over 14,000 deg$^2$ on the sky at spatial resolution and surface brightness levels that can be used to understand the morphological transformation of galaxies within groups and clusters. Using the Early Release Observations (ERO) of the Perseus cluster, we demonstrate the capability offered by Euclid in studying the nature of perturbations for galaxies in clusters. Filamentary structures are observed along the discs of two spiral galax…

On Sunday, I've seen an office labeled "psychodietician".
I imagined Razputin (if you haven't played Psychonauts yet, you should), holding a finger near his temple, deeply focused, using telekinesis to move food into somebody's mouth.

A Burns-Krantz type theorem for Blaschke products
Annika Moucha
https://arxiv.org/abs/2505.21346 https://arxiv.org/pdf/2505.21346

A Burns-Krantz type theorem for Blaschke products
Let $f$ be a holomorphic function mapping the open unit disk into itself. We establish a boundary version of Schwarz' lemma in the spirit of a result by Burns and Krantz and provide sufficient conditions on the local behaviour of $f$ near some boundary point that forces $f$ to be a Blaschke product with predescribed critical points. For the proof, a local Julia type inequality based on Nehari's sharpening of Schwarz' lemma is established.

If Western leftists really “treat all warmongering nations equally”, why haven't I heard of russian, belarusian, Iranian, Chinese, Ethiopian, Sudanese, Myanmar, Indian diplomats being assassinated downtown?
Yes, the assassin shouted “#FreePalestine”.

Looks like for the first day of summer vintage streetcars we've got the nice open air Melbourne car. https://streetcar.live/

Market Street Railway's Real-Time Streetcar Guide
With this live, interactive map, track San Francisco's vintage streetcars and find them near you.

I visited Russel Wright's fabulous Manitoga and wrote an essay about it. Read it and visit this spectacular building and landscape near New York City. Links below.

I opened the door to go to purchase something. Near the house, there are plenty of people talking to each other.
Social anxiety kicked in. I went back to my house.
With physical exercises and exposure therapy, my social anxiety is getting better and better.
But sometime, it still attacks me with full power. Well, at least now, I can smile (albeit still in high anxiety).
#SocialAnxiety

This https://arxiv.org/abs/2203.06002 has been replaced.
link: https://scholar.google.com/scholar?q=a

Experiments on the Violation of Electromagnetic Gauge Symmetry by Yang-Mills Gravity Using Josephson Effects in Superconductors
Yang-Mills gravity is a quantum theory of gravity with translational gauge symmetry that is based on a flat space-time. The universal coupling of all quantum fields to quantum Yang-Mills gravity is based on the replacement of $\partial_μ$ by the translational gauge covariant derivative $(\partial_μ+gϕ_μ^ν\partial_ν)$ in the Lagrangians of non-gravitational fields. Near the surface of the Earth, Yang-Mills gravity causes the phase gradient $\partial_k θ$ to be altered by a factor of $h_1\…

More collages of public domain art
I started making some filler assets (grass etc) and found some cool carts as well. Haven't uploaded them yet but I will once I have enough

Mostly posting on Bluesky now but thought I'd share some spring colour here.
Dog violets in the local cemetery and the woods awakening (Crab Wood near Winchester)
#Spring #Wildflowers #woodland

This https://arxiv.org/abs/2503.03711 has been replaced.
initial toot: https://mastoxiv.page/@a…

The shear Alfvén continuum of quasisymmetric stellarators
The shear Alfvén wave (SAW) continuum plays a critical role in the stability of energetic particle-driven Alfvén eigenmodes. We develop a theoretical framework to analyze the SAW continuum in three-dimensional quasisymmetric magnetic fields, focusing on its implications for stellarator design. By employing a near-axis model and degenerate perturbation theory, the continuum equation is solved, highlighting unique features in 3D configurations, such as the interactions between spectral gaps. Nu…

¯\_(ツ)_/¯

Just finished reading Dream State by Eric Puchner, and it kind of pissed me off. I think I can see exactly why it might be popular with a certain WASPy liberal "literati" type that probably includes a lot of influential reviewers, but to me, it's points about love & life, despite being much more complex, ring just about as hollow (and harmful) as a Disney movie.
I've got a lot of quibbles, but I think most galling to me was a throwaway line near the beginning about why platonic relationships get so much less glory in media than romantic ones, when so much of the plot proceeds to revolve around a stale agency-free romantic attraction model that's certainly more complex on its face than a Disney romance but which is ultimately just as misleading.
Go read Loveless or really any YA #OwnVoices romance (especially queer) and you'll be learning more & better lessons about the human condition.

I like how this new mall near my home closed one of it main halls/corridors to put shops.
They were like: " Those halls make people transit way to efficiently, lets close them off, put shops and trap more people inside the mall."

Natura Urbana II 🏡
城市自然 II 🏡
📷 Pentax MX
🎞️Ilford FP4 Plus, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

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This https://arxiv.org/abs/2504.19332 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Reeb orbits frequently intersecting a symplectic surface
Consider a symplectic surface in a three-dimensional contact manifold with boundary on Reeb orbits (periodic orbits of the Reeb vector field). We assume that the rotation numbers of the boundary Reeb orbits satisfy a certain inequality, and we also make a technical assumption that the Reeb vector field has a particular ``nice'' form near the boundary of the surface. We then show that there exist Reeb orbits which intersect the interior of the surface, with a lower bound on the frequency of thes…

Today I have seen a guy riding an autodrom (bumper car) converted to run on batteries near Prater Hauptallee :-)

Natura Urbana II 🏡
城市自然 II 🏡
📷 Pentax MX
🎞️Ilford FP4 Plus, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

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Good night!

The leadership of the Unites States has made clear that they will imprison and deport lawful residents who publicly disagree with the government.
This man lives in the US legally, is married to a US citizen who is carrying his child, and is set to be deported because in exercising his free speech rights he said something the government didn’t like.
The emergency is now.
#MahmoudKhalil

ICE arrests Palestinian activist Mahmoud Khalil
A prominent Palestinian activist who helped lead last spring's protests at Columbia University has been arrested by federal immigration agents. Mahmoud Khalil's lawyer says he was arrested at his apartment near the university by agents who claimed they were acting on a State Department order to revoke his green card. Khalil, who graduated in December, was taken into custody by Immigration and Customs Enforcement agents and was being held at an immigration detention center in New Jersey. His wif…

3400 BC: The oldest evidence for the use of the wheel and wagon originates from Northern Germany
https://www.uni-kiel.de/en/details/news/051-wheel-tracks

3400 BC: The oldest evidence for the use of the wheel and wagon originates from Northern Germany
A new publication documents Stone Age wheel tracks on a burial site near Flintbek.

Changing tastes
I found a list on my Google Drive account, seemingly from 2008, which identifies itself as the "Best Games". Obviously there have been a number of amazing games released since, but it's interesting to see whether I still consider these to be near the peak of gaming. I'll start with the list, and then below I'll enter some thoughts. Phantasy Star Online…

Natura Urbana 🏡
城市自然 🏡
📷 Pentax MX
🎞️Ilford FP4 Plus, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

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The full formula for the probability of "success" is:
p = {
1/(2^(-n 1)) if n is negative, or
1 - (1/(2^(n 1))) if n is zero or positive
}
(Both branches have the same value when n is 0, so the behavior is smooth around the origin.)
How can we tweak this?
First, we can introduce fixed success and/or failure chances unaffected by level, with this formula only taking effect if those don't apply. For example, you could do 10% failure, 80% by formula, and 10% success to keep things from being too sure either way even when levels are very high or low. On the other hand, this flattening makes the benefit of extra advantage levels even less exciting.
Second, we could allow for gradations of success/failure, and treat the coin pools I used to explain that math like dice pools a bit. An in-between could require linearly more success flips to achieve the next higher grade of success at each grade. For example, simple success on a crit role might mean dealing 1.5x damage, but if you succeed on 2 of your flips, you get 9/4 damage, or on 4 flips 27/8, or on 7 flips 81/16. In this world, stacking crit levels might be a viable build, and just giving up on armor would be super dangerous. In the particular case I was using this for just now, I can't easily do gradations of success (that's the reason I turned to probabilities in the first place) but I think I'd favor this approach when feasible.
The main innovation here over simple dice pools is how to handle situations where the number of dice should be negative. I'm almost certain it's not a truly novel innovation though, and some RPG fan can point out which system already does this (please actually do this, I'm an RPG nerd too at heart).
I'll leave this with one more tweak we could do: what if the number 2 in the probability equation were 3, or 2/3? I think this has a similar effect to just scaling all the modifiers a bit, but the algebra escapes me in this moment and I'm a bit lazy. In any case, reducing the base of the probability exponent should let you get a few more gradations near 50%, which is probably a good thing, since the default goes from 25% straight to 50% and then to 75% with no integer stops in between.

Natura Urbana 🏡
城市自然 🏡
📷 Pentax MX
🎞️Ilford FP4 Plus, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

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Bird of the Day — Blue-throated Mountain-gem, Arizona 2008
#Birds #NaturePhotography #Nature #Wildlife

Today I have seen a guy riding an autodrom (bumper car) converted to run on batteries near Prater Hauptallee :-)

✒️ Scientists have found a way to 'tattoo' tardigrades
... I think there will be a lot of competition for Ig Nobels this year
https://phys.org/news/2025-04-scientists-tattoo-tardigrades.html

Scientists have found a way to 'tattoo' tardigrades
If you haven't heard of a tardigrade before, prepare to be wowed. These clumsy, eight-legged creatures, nicknamed water bears, are about half a millimeter long and can survive practically anything: freezing temperatures, near starvation, high pressure, radiation exposure, outer space and more. Researchers reporting in the journal Nano Letters took advantage of the tardigrade's nearly indestructible nature and gave the critters tiny "tattoos" to test a microfabrication technique to build microsc…

Good Morning #Canada
#HappyBirthday to Harold Jay Smith, born May 26, 1912. Better known by his stage name Jay Silverheels, he is mostly recognized for his role as Tonto in the TV series The Lone Ranger. Silverheels was born on the Six Nations of the Grand River reserve, near Hagersville, Ontario, and was an accomplished athlete before being discovered and starting his acting career.
#CanadaIsAwesome #CanadianLegends
https://www.thecanadianencyclopedia.ca/en/article/jay-silverheels

#FensterFreitag #NotMyHouse #OnHoliday #ICanSeeTheSea

🔫 From Civil Wars to Neoliberalism in Central America
#globalsouth

From Civil Wars to Neoliberalism in Central America
The end of the bloody, US-backed civil wars across Central America led to a brutal neoliberal economic restructuring near the turn of the century — which then helped produce the 21st-century authoritarianism of Salvadoran president Nayib Bukele.

An Afternoon in a Café ☕️
咖啡厅的下午 ☕️
📷 Pentax MX
🎞️Lucky SHD 400
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

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An Afternoon in a Café ☕️
咖啡厅的下午 ☕️
📷 Pentax MX
🎞️Lucky SHD 400
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

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Bird of the Day - Red-billed Tropicbird, Galapagos 2017
#Birds #NaturePhotography #Nature #Wildlife

I’m a newbie #ukulele player having a blast learning stiff strumming patterns that I can’t even follow along singing to without wrecking the whole thing.
But I am curious about how to move away from it in the near future. What should I aim for?
I guess plucking and fingerpicking?

Observation of Resonant Tunneling from Molecular Shape into Vibronic Feshbach Resonances Followed by Mode-Specific Fragmentation
Narayan Kundu, Meenakshi Rana, Aryya Ghosh, Dhananjay Nandi
https://arxiv.org/abs/2505.00532

Observation of Resonant Tunneling from Molecular Shape into Vibronic Feshbach Resonances Followed by Mode-Specific Fragmentation
We present a kinematically complete study of dissociative electron attachment (DEA) in linear OCS molecules, focusing on how electrons resonantly attach and trigger dissociation. Near the Franck-Condon regime, DEA is dominated by molecular shape resonances, where transient OCS$^-$ states form with high vibrational amplitudes, spectroscopically evident as broad features in DEA cross-sections. As the electron beam energy increases from 5.5 to 6.0 eV, S$^-$ population shifts from lower to higher-e…

Biking home today
#cycling #biking #JPL #Pasadena