Tootfinder

🩺 Researchers take major step toward cuff-free blood pressure monitoring
#medicine

Researchers take major step toward cuff-free blood pressure monitoring
Researchers have shown, for the first time, that speckle contrast optical spectroscopy (SCOS) can be used for cuffless blood pressure monitoring. The new technology could improve early detection and management of hypertension.

Cowboys' Jadeveon Clowney hopes to spark Dallas' lackluster pass rush just in time for Micah Parsons' return

https://www.cbssports.com/nfl/news…

Series B, Episode 05 - Pressure Point
BLAKE: Time's up. We're pulling out. Jenna, I want the shortest way out of this system. Avon, run a proximity check on battle fleet patrols.
VILA: Shall I get back to the flight deck, then?
https://blake.torpidity.net/m/205/195 B7B2

SpeCT: A state-of-the-art tool to calculate correlated-k tables and continua of CO$_2$-H$_2$O-N$_2$ gas mixtures
G. Chaverot, M. Turbet, H. Tran, J. -M. Hartmann, A. Campargue, D. Mondelain, E. Bolmont
https://arxiv.org/abs/2508.18049

SpeCT: A state-of-the-art tool to calculate correlated-k tables and continua of CO$_2$-H$_2$O-N$_2$ gas mixtures
A key challenge in modeling (exo)planetary atmospheres lies in generating extensive opacity datasets that cover the wide variety of possible atmospheric composition, pressure, and temperature conditions. This critical step requires specific knowledge and can be considerably time-consuming. To circumvent this issue, most available codes approximate the total opacity by summing the contributions of individual molecular species during the radiative transfer calculation. This approach neglects inte…

Pressure-tunable phase transitions in atomically thin Chern insulator MnBi$_2$Te$_4$
Albin Marffy, Endre Tovari, Yu-Fei Liu, Anyuan Gao, Tianye Huang, Laszlo Oroszlany, Kenji Watanabe, Takashi Taniguchi, Su-Yang Xu, Peter Makk, Szabolcs Csonka
https://arxiv.org/abs/2507.17449

Pressure-tunable phase transitions in atomically thin Chern insulator MnBi$_2$Te$_4$
Topological insulators lacking time-reversal symmetry can exhibit the quantum anomalous Hall effect. Odd-layer thick MnBi$_2$Te$_4$ is a promising platform due to its intrinsic magnetic nature, however, quantization is rarely observed in it. Our magnetoresistance measurements in the anti-ferromagnetic phase indicate, instead of a quantum anomalous Hall insulator, the presence of a trivial insulator state likely due to disorder, while at high magnetic field a Chern insulator state appears. By ap…

Wake dynamics of a square cylinder while moving upward in quiescent water
Intesaaf Ashraf, Stephane Dorbolo, Neetu Tiwari
https://arxiv.org/abs/2509.18305 https://

Quaternary crystals CdZnTeSe: Growth via the vertical Bridgman method with different compositions of raw materials
S. V. Naydenov, O. K. Kapustnyk, I. M. Pritula, D. S. Sofronov, I. S. Terzin, N. O. Kovalenko
https://arxiv.org/abs/2509.18634

Data-driven Neural Networks for Windkessel Parameter Calibration
Benedikt Hoock, Tobias K\"oppl
https://arxiv.org/abs/2509.21206 https://arxiv.org/pdf…

Data-driven Neural Networks for Windkessel Parameter Calibration
In this work, we propose a novel method for calibrating Windkessel (WK) parameters in a dimensionally reduced 1D-0D coupled blood flow model. To this end, we design a data-driven neural network (NN)trained on simulated blood pressures in the left brachial artery. Once trained, the NN emulates the pressure pulse waves across the entire simulated domain, i.e., over time, space and varying WK parameters, with negligible error and computational effort. To calibrate the WK parameters on a measured p…

Dow Jones launches AI-powered real-time translations of news into French, an expansion of services offering automated translations into Korean and Japanese (Andrew Deck/Nieman Lab)
https://www.niemanlab.org/2025/07/a-pressu

Visual artist Nicole Wittenberg on resisting the pressure of productivity culture
#creativity #artist

Visual artist Nicole Wittenberg on resisting the pressure of productivity culture – The Creative Independent
Visual artist Nicole Wittenberg discusses the difference between obsession and compulsion, the importance of time in nature, and learning to understand what art can mean.

And when I'm talking about understanding the drives to violence, I did write about something similar recently.
https://write.as/hexmhell/algorithmic-violence
The drives behind this and the shooting last week are pretty radically different, but there's some overlap. People like Kirk are part a huge political machine slowly crushing people all over the world. There's a hopeless rage that would naturally drive even the most calm person to the edge of violence. You can't look at the world honestly and be OK. We want to do something. We want to react. But everything we do is silenced or must rmain silent. So it's easy to understand why someone might choose violence. Very different situation, but everyone is subject to the same national and international influences.
I don't promote violence, not because I disagree with it but because I think it's expensive. It takes time to plan, especially for those trying to get away. Guns are not cheap, nor are bullets, nor is the range time you need to get somewhat good under pressure. It's not cheap for the person doing it, and it's not cheap for the community that has to clean up. The community will face police repression (which, if we're honest, was gonna come anyway). The community will have to post bail, will lose a person for a while, will need to support the family, will go to hearings, will write reports, will do interviews.
Sun Tzu said that deploying one soldier to the front takes 7 in the field. Logistics are a huge invisible cost. Some of that time and energy could be reused. It's never bad to be armed and able to defend if needed. But a lot of that energy and time would be better spent planning a community pantry, a tool library, organizing a union, etc. We are living in a disaster, and we need to invest in thriving through the next crumble.
Kirk is replacable. They're almost all replacable, because they don't really care about human life. We do, so none of us are. It's not really a worth while trade, IMHO.

"One person who seems to take Mr Putin’s words at face value is Mr Trump, who, over the months, has displayed an almost clinical dependence on the Kremlin’s strongman, and has recoiled every time Ukraine and its European allies have urged him to apply pressure on him."
Putin’s desire to destroy Western unity rages on

Putin’s desire to destroy Western unity rages on
He bets on a military breakthrough or a Trump-brokered stitch-up

High-capillarity limit and smoothing effect of large solutions for a multi-dimensional generic non-conservative compressible two-fluid model
Ling-Yun Shou, Jiayan Wu, Lei Yao, Yinghui Zhang
https://arxiv.org/abs/2509.16607

High-capillarity limit and smoothing effect of large solutions for a multi-dimensional generic non-conservative compressible two-fluid model
We investigate the global existence and long-time behavior of large solutions, in the high-capillarity regime, for a general multidimensional non-conservative compressible two-fluid model with the capillary pressure relation \(f(α^{-}ρ^{-})=P^{+}-P^{-}\). Our main contributions are threefold. First, for sufficiently large capillarity coefficients, we prove the existence and uniqueness of global solutions in critical Besov spaces for large initial perturbations, under the sharp stability condi…

Efficient Routing of Inference Requests across LLM Instances in Cloud-Edge Computing
Shibo Yu, Mohammad Goudarzi, Adel Nadjaran Toosi
https://arxiv.org/abs/2507.15553

Efficient Routing of Inference Requests across LLM Instances in Cloud-Edge Computing
The rising demand for Large Language Model (LLM) inference services has intensified pressure on computational resources, resulting in latency and cost challenges. This paper introduces a novel routing algorithm based on the Non-dominated Sorting Genetic Algorithm II (NSGA-II) to distribute inference requests across heterogeneous LLM instances in a cloud-edge computing environment. Formulated as a multi-objective optimization problem, the algorithm balances response quality, response time, and i…

Real-time alpha-ray track imaging using a synthetic diamond scintillator
Atsuhiro Umemoto, Masao Yoshino, Takashi Iida, Masashi Miyakawa, Takashi Taniguchi, Shintaro Nomura
https://arxiv.org/abs/2508.12050

Real-time alpha-ray track imaging using a synthetic diamond scintillator
We demonstrated real-time imaging of alpha-ray tracks using a high-pressure, high-temperature synthetic diamond scintillator. The optical microscopy system consisted of a magnification objective lens and an electron-multiplying charge-coupled device (EMCCD) to detect luminescence from the diamond substrate irradiated with alpha-rays from a 241Am source. Optical images of alpha-ray tracks were successfully captured under ambient conditions, and image processing methods were performed to enable a…

I'd venture this backlash isn’t just because of one Epstein PR mistake. It’s because Trump smells weak and vulnerable, and his supporters are looking for an exit. The MAGA types loved Trump because he made them feel like winners. And right now he doesn’t.
That doesn't mean we win, yay, time to kick back. His supporters are in an abusive relationship, and they will find it hard to leave.
What this means is − keep the pressure up. ←
Worth skimming this whole roundup from @…. I just don't think the backlash happens without larger underlying weakness.
#uspol https://toad.social/@wdlindsy/114851991461182777

I wonder how Nazi Germany handled climate issues during the Holocaust. Do you think it was widely discussed at the time? https://mastodon.social/@Snoro/115179873107637672

Neural Parameter-varying Data-enabled Predictive Control of Cold Atmospheric Pressure Plasma Jets
Pegah GhafGhanbari, Mircea Lazar, Javad Mohammadpour Velni
https://arxiv.org/abs/2507.08259

Neural Parameter-varying Data-enabled Predictive Control of Cold Atmospheric Pressure Plasma Jets
Cold Atmospheric Pressure Plasma Jets (APPJs) show significant potential for biomedical applications, but their inherent complexity, characterized by nonlinear dynamics and strong sensitivity to operating conditions like tip-to-surface distance, presents considerable challenges for achieving robust and reliable real-time control. To address these issues, this paper presents the Neural Parameter-Varying Data-enabled Predictive Control (NPV-DeePC) framework. By integrating hyper neural networks (…

Accelerating LLM Inference via Dynamic KV Cache Placement in Heterogeneous Memory System
Yunhua Fang, Rui Xie, Asad Ul Haq, Linsen Ma, Kaoutar El Maghraoui, Naigang Wang, Meng Wang, Liu Liu, Tong Zhang
https://arxiv.org/abs/2508.13231

Accelerating LLM Inference via Dynamic KV Cache Placement in Heterogeneous Memory System
Large Language Model (LLM) inference is increasingly constrained by memory bandwidth, with frequent access to the key-value (KV) cache dominating data movement. While attention sparsity reduces some memory traffic, the relevance of past tokens varies over time, requiring the full KV cache to remain accessible and sustaining pressure on both bandwidth and capacity. With advances in interconnects such as NVLink and LPDDR5X, modern AI hardware now integrates high-bandwidth memory (HBM) with high-s…

🩹 Wearable blood pressure monitor attaches like a bandage for real-time continuous measurement
https://medicalxpress.com/news/2025-08-wearable-blood-pressure-bandage-real.html

Wearable blood pressure monitor attaches like a bandage for real-time continuous measurement
Seoul National University College of Engineering announced that a research team has developed a wearable electronic device that attaches to the skin like a bandage and enables real-time, continuous monitoring of blood pressure over extended periods.

YES!
GDP growth is effectively dead.The motor is broken.
Now it's time to face reality and share the wealth that is so evidently present.
An economy for life!
#degrowth
Blow to Chancellor as UK economy shrank unexpectedly in May

Blow to Chancellor as UK economy shrank unexpectedly in May
The UK economy contracted unexpectedly in May, marking the second month in a row of falling output and heaping further pressure on Chancellor Rachel Reeves. The Office for National Statistics (ONS) said gross domestic product (GDP) contracted by 0.1% in May, following a 0.3% drop in April. Most economists had expected the economy to rebound […]

Ever-escalating Russian drone attacks and the concern that Ukraine will be split up under a future peace plan
have cast a shadow over a meeting of European leaders to plan for the eventual reconstruction of the country.
The conference is the fourth in this format and is being attended by Volodymyr Zelenskyy, Germany’s Friedrich Merz, Italy’s Giorgia Meloni and Poland’s Donald Tusk.
It comes at a time of unprecedented pressure on the Ukrainian economy as Vladimir Putin wide…

Assessing robustness and bias in 1D retrievals of 3D Global Circulation Models at high spectral resolution: a WASP-76 b simulation case study in emission
Lennart van Sluijs, Hayley Beltz, Isaac Malsky, Genevieve H. Pereira, L. Cinque, Emily Rauscher, Jayne Birkby
https://arxiv.org/abs/2507.16687

Assessing robustness and bias in 1D retrievals of 3D Global Circulation Models at high spectral resolution: a WASP-76 b simulation case study in emission
High-resolution spectroscopy (HRS) of exoplanet atmospheres has successfully detected many chemical species and is quickly moving toward detailed characterization of the chemical abundances and dynamics. HRS is highly sensitive to the line shape and position, thus, it can detect three-dimensional (3D) effects such as winds, rotation, and spatial variation of atmospheric conditions. At the same time, retrieval frameworks are increasingly deployed to constrain chemical abundances, pressure-temper…

Some semi-decoupled algorithms with optimal convergence for a four-field linear thermo-poroelastic model
Ziliang Li, Mingchao Cai, Jingzhi Li, Qiang Liu
https://arxiv.org/abs/2508.13109

Some semi-decoupled algorithms with optimal convergence for a four-field linear thermo-poroelastic model
We propose three semi-decoupled algorithms for efficiently solving a four-field thermo-poroelastic model. The first two algorithms adopt a sequential strategy: at the initial time step, all variables are computed simultaneously using a monolithic solver; thereafter, the system is split into a mixed linear elasticity subproblem and a coupled pressure-temperature reaction-diffusion subproblem. The two variants differ in the order in which these subproblems are solved. To further improve computati…

Constraining $f(Q,\mathcal{L}_{m})$ gravity with redshift-dependent pressure: Insights from observational probes
Amit Samaddar, S. Surendra Singh
https://arxiv.org/abs/2508.04738

Constraining $f(Q,\mathcal{L}_{m})$ gravity with redshift-dependent pressure: Insights from observational probes
We explore the late time cosmological dynamics of the Universe within the framework of $f(Q,\mathcal{L}_{m})$ gravity by considering the specific form $f(Q, \mathcal{L}_m)=-Q+2\mathcal{L}_m+γ$. To describe the cosmic pressure evolution, a redshift dependent parametrization of $p(z)=α+\frac{βz}{1+z}$ is introduced. MCMC analysis is performed using a combined datasets from Hubble ($46$ points), BAO ($15$ points including DESI DR2) and Pantheon$+$ ($1701$ SNe Ia), the model parameters are const…

Unsteady gas dynamics modeling for leakage detection in parallel pipelines
Ilgar G. Aliyev, Konul Gafarbayli, Ahad Mammadov, Firangiz Mammadrazayeva
https://arxiv.org/abs/2509.09612

Unsteady gas dynamics modeling for leakage detection in parallel pipelines
This study presents a novel analytical framework for modeling unsteady gas dynamics in parallel pipeline systems under leakage conditions. The proposed method introduces a time-dependent leakage mass flow rate function, which dynamically captures the temporal decay of leakage based on real-time inlet pressure measurements. This functional form allows for a more physically consistent and mathematically tractable representation of gas loss compared to conventional constant-rate or stepwise models…

Jake Ferguson's deal won't pressure Micah Parsons into signing; Will the Cowboys learn anything this time?

https://www.cbssports.com/nfl/news/jake-fe

Bulk viscosity from early-time thermalization of cosmic fluids in light of DESI DR2 data
Hermano Velten, William Iania
https://arxiv.org/abs/2509.05148 https://

Bulk viscosity from early-time thermalization of cosmic fluids in light of DESI DR2 data
If nonrelativistic dark matter and radiation are allowed to interact, reaching an approximate thermal equilibrium, this interaction induces a bulk viscous pressure changing the effective one-fluid description of the universe dynamics. By modeling such components as perfect fluids, a cosmologically relevant bulk viscous pressure emerges for dark matter particle masses in the range of $1\,\text{eV} - 10\,\text{eV}$ keeping thermal equilibrium with the radiation. Such a transient bulk viscosity in…

How popular media gets love wrong
Now a bit of background about why I have this "engineered" model of love:
First, I'm a white straight cis man. I've got a few traits that might work against my relationship chances (e.g., neurodivergence; I generally fit pretty well into the "weird geek" stereotype), but as I was recently reminded, it's possible my experience derives more from luck than other factors, and since things are tilted more in my favor than most people on the planet, my advice could be worse than useless if it leads people towards strategies that would only have worked for someone like me. I don't *think* that's the case, but it's worth mentioning explicitly.
When I first started dating my now-wife, we were both in graduate school. I was 26, and had exactly zero dating/romantic experience though that point in my life. In other words, a pretty stereotypical "incel" although I definitely didn't subscribe to incel ideology at all. I felt lonely, and vaguely wanted a romantic relationship (I'm neither aromantic nor asexual), but had never felt socially comfortable enough to pursue one before. I don't drink and dislike most social gatherings like parties or bars; I mostly hung around the fringes of the few college parties I attended, and although I had a reasonable college social life in terms of friends, I didn't really do anything to pursue romance, feeling too awkward to know where to start. I had the beginnings of crushes in both high school and college, but never developed a really strong crush, probably correlated with not putting myself in many social situations outside of close all-male friend gatherings. I never felt remotely comfortable enough to act on any of the proto-crushes I did have. I did watch porn and masturbate, so one motivation for pursuing a relationship was physical intimacy, but loneliness was as much of a motivating factor, and of course the social pressure to date was a factor too, even though I'm quite contrarian.
When I first started dating my now-wife, we were both in graduate school. I was 26, and had exactly zero dating/romantic experience though that point in my life. In other words, a pretty stereotypical "incel" although I definitely didn't subscribe to incel ideology at all. I felt lonely, and vaguely wanted a romantic relationship (I'm neither aromantic nor asexual), but had never felt socially comfortable enough to pursue one before. I don't drink and dislike most social gatherings like parties or bars; I mostly hung around the fringes of the few college parties I attended, and although I had a reasonable college social life in terms of friends, I didn't really do anything to pursue romance, feeling too awkward to know where to start. I had the beginnings of crushes in both high school and college, but never developed a really strong crush, probably correlated with not putting myself in many social situations outside of close all-male friend gatherings. I never felt remotely comfortable enough to act on any of the proto-crushes I did have. I did watch porn and masturbate, so one motivation for pursuing a relationship was physical intimacy, but loneliness was as much of a motivating factor, and of course the social pressure to date was a factor too, even though I'm quite contrarian.
I'm lucky in that I had some mixed-gender social circles already like intramural soccer and a graduate-student housing potluck. Graduate school makes a *lot* more of these social spaces accessible, so I recognize that those not in school of some sort have a harder time of things, especially if like me they don't feel like they fit in in typical adult social spaces like bars.
However, at one point I just decided that my desire for a relationship would need action on my part and so I'd try to build a relationship and see what happened. I worked up my courage and asked one of the people in my potluck if she'd like to go for a hike (pretty much clearly a date but not explicitly one; in retrospect not the best first-date modality in a lot of ways, but it made a little more sense in our setting where we could go for a hike from our front door). To emphasize this point: I was not in love with (or even infatuated with) my now-wife at that point. I made a decision to be open to building a relationship, but didn't follow the typical romance story formula beyond that. Now of course, in real life as opposed to popular media, this isn't anything special. People ask each other out all the time just because they're lonely, and some of those relationships turn out fine (although many do not).
I was lucky in that some aspects of who I am and what I do happened to be naturally comforting to my wife (natural advantage in the "appeal" model of love) but of course there are some aspects of me that annoy my wife, and we negotiate that. In the other direction, there's some things I instantly liked about my wife, and other things that still annoy me. We've figured out how to accept a little, change a little, and overall be happy with each other (though we do still have arguments; it's not like the operation/construction/maintenance of the "love mechanism" is always perfectly smooth). In particular though, I approached the relationship with the attitude of "I want to try to build a relationship with this person," at first just because of my own desires for *any* relationship, and then gradually more and more through my desire to build *this specific* relationship as I enjoyed the rewards of companionship.
So for example, while I think my wife is objectively beautiful, she's also *subjectively* very beautiful *to me* because having decided to build a relationship with her, I actively tried to see her as beautiful, rather than trying to judge whether I wanted a relationship with her based on her beauty. In other words, our relationship is more causative of her beauty-to-me than her beauty-to-me is causative of our relationship. This is the biggest way I think the "engineered" model of love differs from the "fire" and "appeal" models: you can just decide to build love independent of factors we typically think of as engendering love (NOT independent of your partner's willingness to participate, of course), and then all of those things like "thinking your partner is beautiful" can be a result of the relationship you're building. For sure those factors might affect who is willing to try building a relationship with you in the first place, but if more people were willing to jump into relationship building (not necessarily with full commitment from the start) without worrying about those other factors, they might find that those factors can come out of the relationship instead of being prerequisites for it. I think this is the biggest failure of the "appeal" model in particular: yes you *do* need to do things that appeal to your partner, but it's not just "make myself lovable" it's also: is your partner putting in the effort to see the ways that you are beautiful/lovable/etc., or are they just expecting you to become exactly some perfect person they've imagined (and/or been told to desire by society)? The former is perfectly possible, and no less satisfying than the latter.
To cut off my rambling a bit here, I'll just add that in our progress from dating through marriage through staying-married, my wife and I have both talked at times explicitly about commitment, and especially when deciding to get married, I told her that I knew I couldn't live up to the perfect model of a husband that I'd want to be, but that if she wanted to deepen our commitment, I was happy to do that, and so we did. I also rearranged my priorities at that point, deciding that I knew I wanted to prioritize this relationship above things like my career or my research interests, and while I've not always been perfect at that in my little decisions, I've been good at holding to that in my big decisions at least. In the end, *once we had built a somewhat-committed relationship*, we had something that we both recognized was worth more than most other things in life, and that let us commit even more, thus getting even more out of it in the long term. Obviously you can't start the first date with an expectation of life-long commitment, and you need to synchronize your increasing commitment to a relationship so that it doesn't become lopsided, which is hard. But if you take the commitment as an active decision and as the *precursor* to things like infatuation, attraction, etc., you can build up to something that's incredibly strong and rewarding.
I'll follow this up with one more post trying to distill some advice from my ramblings.
#relationships #love

SCCRUB: Surface Cleaning Compliant Robot Utilizing Bristles
Jakub F. Kowalewski, Keeyon Hajjafar, Alyssa Ugent, Jeffrey Ian Lipton
https://arxiv.org/abs/2507.06053

SCCRUB: Surface Cleaning Compliant Robot Utilizing Bristles
Scrubbing surfaces is a physically demanding and time-intensive task. Removing adhered contamination requires substantial friction generated through pressure and torque or high lateral forces. Rigid robotic manipulators, while capable of exerting these forces, are usually confined to structured environments isolated from humans due to safety risks. In contrast, soft robot arms can safely work around humans and adapt to environmental uncertainty, but typically struggle to transmit the continuous…

Tuning of SiV quantum emission in nitrogen-doped nanodiamonds by dual-color excitation
A. A. Zhivopistsev, A. M. Romshin, A. V. Gritsienko, D. G. Pasternak, R. K. Bagramov, V. P. Filonenko, F. M. Maksimov, A. I. Chernov, A. M. Skomorokhov, N. I. Kargin, I. I. Vlasov
https://arxiv.org/abs/2509.06500…

Tuning of SiV quantum emission in nitrogen-doped nanodiamonds by dual-color excitation
The charge dynamics of silicon-vacancy (SiV) centers have been investigated for the first time in high-pressure high-temperature nanodiamonds (NDs) with varying concentrations of substitutional nitrogen (Ns). We demonstrate a controlled sixfold enhancement of SiV- photoluminescence (PL) under dual-color excitation, consisting of strong red (~660 nm) illumination combined with weak green (~530 nm) excitation. The measured dependencies of SiV- PL lifetime and intensity on excitation wavelength, t…

Finite-Time Splash in Free Boundary Problem of 3D Neo-Hookean Elastodynamics
Wei Zhang, Jie Fu, Chengchun Hao
https://arxiv.org/abs/2508.08751 https://arxi…

Finite-Time Splash in Free Boundary Problem of 3D Neo-Hookean Elastodynamics
This paper establishes finite-time splash singularity formation for 3D viscous incompressible neo-Hookean elastodynamics with free boundaries. The system features mixed stress-kinematic conditions where viscous-elastic stresses balance pressure forces at the evolving interface -- a configuration generating complex boundary integrals that distinguish it from Navier-Stokes or MHD systems. To address this challenge, we employ a Lagrangian framework inspired by Coutand and Shkoller (2019), developi…

Particle production and identification for the T10 secondary beamline of the CERN East Area
Maarten van Dijk, Ahsan Hayat, Dipanwita Banerjee, Johannes Bernhard, Berare Gokturk, Laurie Nevay, Jorgen Petersen, Martin Schwinzerl
https://arxiv.org/abs/2507.02567

Particle production and identification for the T10 secondary beamline of the CERN East Area
The particle composition of the T10 beam line in the renovated East Hall at CERN has been measured using several experimental techniques and detectors: pressure scans on a threshold Cherenkov counter, a lead-glass calorimeter, time-of-flight, and finally using two separate threshold Cherenkov counters. For the pressure scans, at a given beam momentum, the count rate in the Cherenkov counters is measured as a function of pressure in the counter. The count rate normalized to the rate of beam part…

The challenge of HEPA filters in the classrooms.
h/t @…
source: https://xcancel.com/kadamssl/status/1938267359233429683#m

Measuring the Carbon Footprint of Cryptographic Privacy-Enhancing Technologies
Marc Damie, Mihai Pop, Merijn Posthuma
https://arxiv.org/abs/2508.04583 https://

Measuring the Carbon Footprint of Cryptographic Privacy-Enhancing Technologies
Privacy-enhancing technologies (PETs) have attracted significant attention in response to privacy regulations, driving the development of applications that prioritize user data protection. At the same time, the information and communication technology (ICT) sector faces growing pressure to reduce its environmental footprint, particularly its carbon emissions. While numerous studies have assessed the energy footprint of various ICT applications, the environmental footprint of cryptographic PETs …

Thermal Sunyaev-Zel'dovich Effect in the circumgalactic medium -- II: dependence on star formation
Sanskriti Das, Nhut Truong, Yi-Kuan Chiang, Smita Mathur
https://arxiv.org/abs/2508.09514

Thermal Sunyaev-Zel'dovich Effect in the circumgalactic medium -- II: dependence on star formation
We measure thermal Sunyaev-Zel'dovich (tSZ) Effect in the circumgalactic medium (CGM) of $\approx$2.5 million $\rm M_{200}$=$\rm 10^{12-14}\,M_\odot$ WISE$\times$DESI galaxies out to $z$=1.2. We split the sample into quiescent (0.7 million) and star-forming (1.8 million) galaxies, exploring the relation between the thermal pressure of the CGM and star formation for the first time. We develop and implement a novel probabilistic approach to cross-correlate the galaxy catalog with the Atacama Cosm…

Search for thermodynamically stable ambient-pressure superconducting hydrides in GNoME database
Antonio Sanna, Tiago F. T. Cerqueira, Ekin Dogus Cubuk, Ion Errea, Yue-Wen Fang
https://arxiv.org/abs/2508.19781

Search for thermodynamically stable ambient-pressure superconducting hydrides in GNoME database
Hydrides are considered to be one of the most promising families of compounds for achieving high temperature superconductivity. However, there are very few experimental reports of ambient-pressure hydride superconductivity, and the superconducting critical temperatures ($T_{\rm c}$) are typically less than 10 K. At the same time several hydrides have been predicted to exhibit superconductivity around 100 K at ambient pressure but in thermodynamically unfavorable phases. In this work we aim at a…

Putin has every reason to seek a lifeline for the Russian economy.
In recent weeks, a flurry of signs has shown Russia’s war-drained, sanctions-constrained economy to be at an inflection point.
For the first time since the start of the war, nonmilitary economic activity has been contracting,
bankers are making plans to weather a financial crisis,
and energy firms are worrying about losing their largest customer for seaborne oil exports.

Putin’s Fear of a Humiliating Economic Crisis
Greater sanctions pressure could finally bring Moscow to the negotiating table.

Exotic collective dynamics in molten Carbon
Taras Bryk, Giancarlo Ruocco, Jean-Fran\c{c}ois Wax, No\"el Jakse
https://arxiv.org/abs/2507.07657 https:/…

Exotic collective dynamics in molten Carbon
Collective longitudinal and transverse propagating modes in molten Carbon at $T=5500$~K and pressure range $10$-$40$ GPa are reported from {\it ab initio} based as well as machine learned molecular dynamics. A striking exotic feature in collective dynamics is the two-peak shape of the current spectral functions of the single-component liquid, which makes evidence of a second branch of longitudinal propagating modes in the wave number range $k>1$Å$^{-1}$. It is shown that time correlation funct…

The difference between Jeffries’s speech being an empty stunt and the speech being a substantive blow is whether we’ve been using that time to put pressure on R MoC and to bring the deeply unpopular consequences of the bill to public light. I hope we’ve been doing that.
They wanted this to pass quickly and in the middle of the night. The longer it takes, the higher the price of passage for them.

A linear, mass-conserving, multi-time-step compact block-centered finite difference method for incompressible miscible displacement problem in porous media
Xiaoying Wang, Hongxing Rui, Hongfei Fu
https://arxiv.org/abs/2508.01256

A linear, mass-conserving, multi-time-step compact block-centered finite difference method for incompressible miscible displacement problem in porous media
In this paper, a two-dimensional incompressible miscible displacement model is considered, and a novel decoupled and linearized high-order finite difference scheme is developed, by utilizing the multi-time-step strategy to treat the different time evolutions of concentration and velocity/pressure, and the compact block-centered finite difference approximation for spatial discretization. We show that the scheme is mass-conserving, and has second-order temporal accuracy and fourth-order spatial a…

Pseudo-grand canonical molecular dynamics via volumetrically controlled osmotic pressure
Blake I. Armstrong, Aaron D. Copeland, Davide Donadio, Paolo Raiteri
https://arxiv.org/abs/2508.03051

Pseudo-grand canonical molecular dynamics via volumetrically controlled osmotic pressure
Molecular dynamics simulations are typically constrained to have a fixed number of particles, which limits our capability to simulate chemical and physical processes where the composition of the system changes during the simulation time. Typical examples are the calculation of nucleation and crystal growth rates in heterogeneous solutions where the driving force depends on the composition of the fluid. Constant chemical potential molecular dynamics simulations would instead be required to compu…

Two-dimensional spatially resolved measurements of helium metastable densities by tunable diode laser absorption spectroscopy in atmospheric pressure RF plasma jets
David A Schulenberg, Xiao-Kun Wang, Mate Vass, Ihor Korolov, Thomas Mussenbrock, Julian Schulze
https://arxiv.org/abs/2507.20748

Two-dimensional spatially resolved measurements of helium metastable densities by tunable diode laser absorption spectroscopy in atmospheric pressure RF plasma jets
Helium metastable species play a critical role in sustaining radio-frequency (RF) driven micro atmospheric pressure plasma jets through Penning ionization and for the generation of reactive oxygen and nitrogen species (RONS). Their densities are typically measured using tunable diode laser absorption spectroscopy (TDLAS). Most spatially resolved TDLAS approaches rely on mechanical scanning of a narrow laser beam across the plasma, which is time-consuming and limits spatial resolution. In this w…

Salt-Rock Creep Deformation Forecasting Using Deep Neural Networks and Analytical Models for Subsurface Energy Storage Applications
Pradeep Kumar Shukla, Tanujit Chakraborty, Mustafa Sari, Joel Sarout, Partha Pratim Mandal
https://arxiv.org/abs/2508.05248

Salt-Rock Creep Deformation Forecasting Using Deep Neural Networks and Analytical Models for Subsurface Energy Storage Applications
This study provides an in-depth analysis of time series forecasting methods to predict the time-dependent deformation trend (also known as creep) of salt rock under varying confining pressure conditions. Creep deformation assessment is essential for designing and operating underground storage facilities for nuclear waste, hydrogen energy, or radioactive materials. Salt rocks, known for their mechanical properties like low porosity, low permeability, high ductility, and exceptional creep and sel…

High-Capacity and Real-Time Acoustic Communication by Multiplexing Velocity
Lei Liu, Xiujuan Zhang, Ming-Hui Lu, Yan-Feng Chen
https://arxiv.org/abs/2508.03010 https://

High-Capacity and Real-Time Acoustic Communication by Multiplexing Velocity
Acoustic communication is indispensable for underwater networks, deep ocean exploration, and biological monitoring, environments where electromagnetic waves become impractical. However, unlike the latter, whose vector polarization naturally supports multiple information channels, acoustic waves are longitudinal and have traditionally relied almost exclusively on a single scalar pressure channel, posing a fundamental limit on their data-carrying capacity. Here, we theoretically and experimentall…

Eddy population based model for the wall-pressure spectrum at high Reynolds number
Jonathan M. O. Massey, Alexander J. Smits, Beverley J. McKeon
https://arxiv.org/abs/2507.23098

Eddy population based model for the wall-pressure spectrum at high Reynolds number
Wall-pressure fluctuations beneath turbulent boundary layers drive noise and structural fatigue through interactions between fluid and structural modes. Conventional predictive models for the spectrum--such as the widely accepted Goody model--fail to capture the energetic growth in the subconvective regime that occurs at high Reynolds number, while at the same time over-predicting the variance. To address these shortcomings, two semi-empirical models are proposed for the wall-pressure spectru…

Floor sensors are cheap and easy to use! A Nihon Buyo Case Study
Miho Imai
https://arxiv.org/abs/2508.19261 https://arxiv.org/pdf/2508.19261

Floor sensors are cheap and easy to use! A Nihon Buyo Case Study
As floor-sensing technologies gain traction in movement research, questions remain about their usability and effectiveness for non-expert users. This study presents a case study evaluating Flexel, a modular, low-cost, high-resolution pressure-sensing floor interface, in the context of Nihon Buyo, a traditional Japanese dance. The system was installed, calibrated, and used by a first-time, non-technical user to track weight distribution patterns of a teacher and learner over nine weeks. Live pre…

Simulation of Lateral Impulse Induced Inertial Dilation at the Surface of a Vacuum-Exposed Granular Assembly
Eric Frizzell, Christine Hartzell
https://arxiv.org/abs/2509.04074 h…

Simulation of Lateral Impulse Induced Inertial Dilation at the Surface of a Vacuum-Exposed Granular Assembly
We demonstrate for the first time that a lateral impulse experienced by a granular channel can induce an inertial bulk dilation over long distances across a granular medium with a mechanically free surface. The surface dilation requires zero overburden pressure (exposure to vacuum) and is precipitated by the passing of waves traveling barely above the sound speed (> Mach 1.05). We simulate this phenomenon using open source Soft Sphere Discrete Element Method (SSDEM) software. We prepare channel…

Helix Parallelism: Rethinking Sharding Strategies for Interactive Multi-Million-Token LLM Decoding
Nidhi Bhatia, Ankit More, Ritika Borkar, Tiyasa Mitra, Ramon Matas, Ritchie Zhao, Maximilian Golub, Dheevatsa Mudigere, Brian Pharris, Bita Darvish Rouhani
https://arxiv.org/abs/2507.07120 …

Helix Parallelism: Rethinking Sharding Strategies for Interactive Multi-Million-Token LLM Decoding
As LLMs scale to multi-million-token KV histories, real-time autoregressive decoding under tight Token-to-Token Latency (TTL) constraints faces growing pressure. Two core bottlenecks dominate: accessing Feed-Forward Network (FFN) weights and reading long KV caches. While Tensor Parallelism (TP) helps mitigate the cost of FFN weight reads, it does not scale well for attention. When TP width exceeds the number of KV heads, it leads to inefficient KV duplication, limits parallelism, and constrains…

Mixed finite element projection methods for the unsteady Brinkman equations
Costanza Aric\`o, Rainer Helmig, Ivan Yotov
https://arxiv.org/abs/2509.14059 https://

Mixed finite element projection methods for the unsteady Brinkman equations
We present $H(\text{div})$-conforming mixed finite element methods for the unsteady Brinkman equations for incompressible single-phase flow with fixed in space porous solid inclusions. We employ a projection scheme with incremental pressure correction, which requires at each time step the solution of a predictor and a projection problem. The predictor problem, which uses a stress-velocity mixed formulation, accounts for the viscous effects, while the projection problem, which is based on a velo…

Series B, Episode 05 - Pressure Point
CALLY: I'd prefer that to being here.
VILA: You're welcome to take my place when the time comes.
AVON: If it comes.
CALLY: What do you mean?
AVON: Something's not right.
https://blake.torpidity.net/m/205/245…

Blakes7Bot | Search
Companion site to the Blakes7Bot Twitter, Mastodon, and Bluesky accounts. Automated lines of Blakes 7 dialog. Includes a script search facility.

Approximation of time-periodic flow past a translating body by flows in bounded domains
Thomas Eiter, Ana Leonor Silvestre
https://arxiv.org/abs/2507.23697 https://

Approximation of time-periodic flow past a translating body by flows in bounded domains
We consider a time-periodic incompressible three-dimensional Navier-Stokes flow past a translating rigid body. In the first part of the paper, we establish the existence and uniqueness of strong solutions in the exterior domain $Ω\subset {\mathbb R}^3$ that satisfy pointwise estimates for both the velocity and pressure. The fundamental solution of the time-periodic Oseen equations plays a central role in obtaining these estimates. The second part focuses on approximating this exterior flow wit…

Disk impact on a boiling liquid: Dynamics of the entrapped vapor pocket
Yee Li Fan, Bernardo Palacios Muniz, Nayoung Kim, Devaraj van der Meer
https://arxiv.org/abs/2507.11264

Disk impact on a boiling liquid: Dynamics of the entrapped vapor pocket
Upon the impact of a flat disk on a boiling liquid, i.e., a liquid that is in thermal equilibrium with its own vapor, a thin vapor layer is entrapped under the disk. Due to the tendency of vapor to undergo phase change under pressure variation upon impact, the dynamics of this entrapped vapor pocket are different from those of a non-condensable air pocket. In this work, we experimentally investigate the dynamics of the entrapped vapor pocket, more specifically its time evolution and its subsequ…

🫨 Scientists capture slow-motion earthquake in action
#earth

Scientists capture slow-motion earthquake in action
Scientists for the first time have detected a slow slip earthquake in motion during the act of releasing tectonic pressure on a major fault zone at the bottom of the ocean.

The least I can do. After you write YOUR letter, post a picture!
#disney #boycottdisney
#uspol #JimmyKimmel

On the formation of multiple dust-trapping rings in the inner Solar system
E. Lega, A. Morbidelli, F. Masset, W. B\'ethune
https://arxiv.org/abs/2508.02410 https://

On the formation of multiple dust-trapping rings in the inner Solar system
Isotopic properties of meteorites provide evidence that multiple dust trap or pressure bumps had to form and persist in the inner Solar System on a timescale of millions of years. The formation of a pressure bump at the outer edge of the gap opened by Jupiter blocks particles drifting from the outer to the inner disk. This is not enough to preserve dust in the inner disk. However, in low viscosity disks, under specific condition on the gas cooling time, massive planets can also open secondary g…

Physically Interpretable Descriptors Drive the Materials Design of Metal Hydrides for Hydrogen Storage
Seong-Hoon Jang, Di Zhang, Hung Ba Tran, Xue Jia, Kiyoe Konno, Ryuhei Sato, Shin-ichi Orimo, and Hao Li
https://arxiv.org/abs/2509.04039

Physically Interpretable Descriptors Drive the Materials Design of Metal Hydrides for Hydrogen Storage
Designing metal hydrides for hydrogen storage remains a longstanding challenge due to the vast compositional space and complex structure-property relationships. Herein, for the first time, we present physically interpretable models for predicting two key performance metrics, gravimetric hydrogen density $w$ and equilibrium pressure $P_{\rm eq,RT}$ at room temperature, based on a minimal set of chemically meaningful descriptors. Using a rigorously curated dataset of $5,089$ metal hydride composi…

Upscaling the hyperpolarization sample volume of an automat-ed hydrogenative parahydrogen-induced polarizer
Yenal G\"okpek, Jan-Bernd H\"ovener, Andrey N. Pravdivtsev
https://arxiv.org/abs/2507.03790

Upscaling the hyperpolarization sample volume of an automat-ed hydrogenative parahydrogen-induced polarizer
Nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI) suffer from inherently low sensitivity due to the weak thermal polarization of nuclear spins. Parahydrogen-induced polarization (PHIP) offers a powerful route to enhance NMR signals by several orders of magnitude, enabling real-time metabolic imaging. However, PHIP implementations are often constrained by small sample volumes, limited automation, and complex high-pressure requirements. In this work, we present an upgraded, au…

Is feedback-free star formation possible?
A. Ferrara, D. Manzoni, E. Ntormousi
https://arxiv.org/abs/2509.02566 https://arxiv.org/pdf/2509.02566

Is feedback-free star formation possible?
It has been suggested that, if the free-fall time of star-forming clouds is shorter than the lifetime ($\approx 3 $ Myr) of massive stars exploding as supernovae (SN), a large fraction of the cloud gas can be converted into stars during an allegedly `feedback-free' phase. Here, we show that radiation pressure from Ly$α$ photons produced in the pre-SN phase can instead erase feedback-free conditions, and severely limit the star formation efficiency (SFE). We find that, for a constant star forma…

Phase space analysis of R\'enyi Holographic dark energy model
Santanu Das, Nilanjana Mahata
https://arxiv.org/abs/2507.21549 https://arxiv.org/pdf/2507…

Phase space analysis of Rényi Holographic dark energy model
Recent observational evidences point out towards a late time acceleration of the universe. In order to study the accelerated expansion, scientists have incorporated the existence of an exotic matter with negative pressure, termed as dark energy. Afterwards a new idea of dark energy have been studied depending on the holographic principle of quantum gravity, called as the Holographic Dark Energy(HDE). Later on modifying Bekestein-Hawking entropy, different generalized entropies have been propose…

Optimal transitional mechanisms of incompressible separated shear layers subject to external disturbances
Flavio Savarino, Denis Sipp, Georgios Rigas
https://arxiv.org/abs/2507.04525

Optimal transitional mechanisms of incompressible separated shear layers subject to external disturbances
Optimal transitional mechanisms are analysed for an incompressible shear layer developing over a short, pressure gradient-induced laminar separation bubble (LSB) with peak reversed flow of 2%. Although the bubble remains globally stable, the shear layer destabilises due to the amplification of external time- and spanwise-periodic disturbances. Using linear resolvent analysis (RA), we demonstrate that the pressure gradient modifies boundary layer receptivity, shifting from Tollmien-Schlichting (…

Fast reconstruction approaches for photoacoustic tomography with smoothing Sobolev/Mat\'ern priors
Jaakko Kultima, Ronny Ramlau, Teemu Sahlstr\"om, Tanja Tarvainen
https://arxiv.org/abs/2507.02401

Fast reconstruction approaches for photoacoustic tomography with smoothing Sobolev/Matérn priors
In photoacoustic tomography (PAT), the computation of the initial pressure distribution within an object from its time-dependent boundary measurements over time is considered. This problem can be approached from two well-established points of view: deterministically using regularisation methods, or stochastically using the Bayesian framework. Both approaches frequently require the solution of a variational problem. In the paper we elaborate the connection between these approaches by establishin…

MCFuser: High-Performance and Rapid Fusion of Memory-Bound Compute-Intensive Operators
Zheng Zhang, Donglin Yang, Xiaobo Zhou, Dazhao Cheng
https://arxiv.org/abs/2506.22169

MCFuser: High-Performance and Rapid Fusion of Memory-Bound Compute-Intensive Operators
Operator fusion, a key technique to improve data locality and alleviate GPU memory bandwidth pressure, often fails to extend to the fusion of multiple compute-intensive operators due to saturated computation throughput. However, the dynamicity of tensor dimension sizes could potentially lead to these operators becoming memory-bound, necessitating the generation of fused kernels, a task hindered by limited search spaces for fusion strategies, redundant memory access, and prolonged tuning time, l…

Sharp power concavity of two relevant free boundary problems of reaction-diffusion type
Qingyou He
https://arxiv.org/abs/2509.08768 https://arxiv.org/pdf/2…

Sharp power concavity of two relevant free boundary problems of reaction-diffusion type
The porous medium type reaction-diffusion equation and the Hele-Shaw problem are two free boundary problems linked through the incompressible (Hele-Shaw) limit. We investigate and compare the sharp power concavities of the pressures on their respective supports for the two free boundary problems. For the pressure of the porous medium type reaction-diffusion equation, the $\frac{1}{2}$-concavity preserves all the time, while $α$-concavity for $α\in[0,\frac{1}{2})\cup(\frac{1}{2},1]$ does not p…

Sequential estimation of disturbed aerodynamic flows from sparse measurements via a reduced latent space
Hanieh Mousavi, Anya Jones, Jeff Eldredge
https://arxiv.org/abs/2509.03795

Sequential estimation of disturbed aerodynamic flows from sparse measurements via a reduced latent space
This work presents a fast, scalable, and uncertainty-aware methodology for real-time estimation of key aerodynamic states, including instantaneous vorticity fields and aerodynamic loads, during severe gust encounters where strong flow separation and vortex-gust interactions dominate the dynamics. The methodology, trained and tested on high-fidelity simulations of two-dimensional wing-gust encounters with sparse pressure data, combines physics-based ensemble filtering with data-driven surrogate …

Weak solutions of a viscous model for fluid-bubbles interaction
Cosmin Burtea (Universit\'e Paris Cit\'e, Sorbonne Universit\'e, CNRS, IMJ-PRG, Paris, France), David G\'erard-Varet (Universit\'e Paris Cit\'e, Sorbonne Universit\'e, CNRS, IMJ-PRG, Paris, France)
https://arxiv.org/abs/2507.21850

Weak solutions of a viscous model for fluid-bubbles interaction
We present a system of Navier-Stokes type that describes the dynamics of several spherical bubbles of gas in a liquid. It is derived from a more complete model, where the bubbles are seen as inclusions of gas of homogeneous barotropic pressure with free surfaces. The usual condition of continuity of the stress is relaxed in order to preserve the sphericity of the bubbles through time. We construct weak solutions à la Leray for this relaxed system, up to collision between the bubbles. Although …