Tootfinder

Eucalyptus boom in Brazil’s Cerrado dries up springs, forces out smallholders https://news.mongabay.com/short-article/2025/06/eucalyptus-boom-in-brazils-cerrado-dries-up-springs-forces-out-smallholders/

Eucalyptus boom in Brazil’s Cerrado dries up springs, forces out smallholders
A eucalyptus boom in Brazil’s biodiverse Cerrado savanna is drying up land and water springs, making subsistence farming more difficult, local authorities and farmers tell Mongabay. Adilso Cruz, a 46-year-old rancher from the Alecrim settlement in Mato Grosso do Sul state, said the water shortages began around 2013, coinciding with the growth of eucalyptus plantations […]

Weekend #Plankton Factoid 🦠🦐
The new Surface Water and Ocean Topography (SWOT) satellite is crazy accurate. It can measure ocean altimetry to a mm, imaging internal waves and small sub eddies (rotating mixing zones). Tiny changes in height happen when water swirls (try it in a sink) with greater height at the edges due to centripetal force. These may be even more important for temperature &a…

ICE arrested a California union leader. Does Trump understand what that means?
The arrest of David Huerta, president of SEIU-USWW and SEIU California,
by U.S. Immigration and Customs Enforcement on Friday
is going to have a major impact on the coming months as deportations continue.
Unions in California are different from those in other places.
More than any state in our troubled country, their ranks are filled with people of color and immigrants.
Whi…

ICE arrested a California union leader. Does Trump understand what that means?
Unions in California are different from many in the U.S. because they are predominately people of color and immigrants. The arrest of a union president in L.A. will likely activate these unions to become powerful forces of nonviolent protest.

A BBC journalist describes being detained and held at gunpoint with five other journalists and a cameraman by the Israel Defense Forces in Syria on May 9 (Feras Kilani/BBC)
https://www.bbc.com/news/articles/c4grldkeyv5o

Held at gunpoint: BBC team detained by Israeli forces in southern Syria
BBC Arabic's Feras Kilani and his colleagues were held at gunpoint, bound and strip-searched while filming in the Golan Heights.

Nanoconfinement Effects on Intermolecular Forces Observed via Dewetting
Tara (Tera), Huang, Evon S. Petek, Reika Katsumata
https://arxiv.org/abs/2506.03387

Nanoconfinement Effects on Intermolecular Forces Observed via Dewetting
Although wettability is a macroscopic manifestation of molecular-level forces, such as van der Waals (vdW) forces, the impact of nanoconfinement on material properties in reduced film thickness remains unexplored in predicting film stability. In this work, we investigate how nanoconfinement influences intermolecular interactions using a model trilayer system composed of a thick polystyrene (PS) base, a poly(methyl methacrylate) (PMMA) middle layer with tunable thickness (15-95 nm), and a 10 nm …

Velocity-modulated drag-trapping of nanoparticles by moving fringe pattern in hollow-core fiber
Soumya Chakraborty, Gordon K. L. Wong, Philip St. J. Russell, Nicolas Y. Joly
https://arxiv.org/abs/2506.04770

Velocity-modulated drag-trapping of nanoparticles by moving fringe pattern in hollow-core fiber
We report optical trapping and transport at atmospheric pressure of nanoparticles in a moving interference pattern in hollow-core photonic crystal fiber. Unlike in previous work at low pressure, when the viscous drag forces are weak and the particles travel at the fringe velocity, competition between trapping and drag forces causes the particle velocity to oscillate as it is momentarily captured and accelerated by each passing fringe, followed by release and deceleration by viscous forces. As a…

Faced with the growing risk that #LightPollution represents for the development of astronomy in Chile, international observatories with a presence in the country have formed a joint organization dedicated to protecting the dark skies of northern Chile: https://giantmagellan.org/2025/06/03/dark-skies-council-international-astronomical-observatories-join-forces-to-protect-chiles-skies/ - the Association of Universities for Research in Astronomy (AURA), the Giant Magellan Telescope, the European Southern Observatory (ESO) and Carnegie Science’s Las Campanas Observatory (LCO), signed an agreement to create the Dark Skies Council; through this alliance, the institutions will work in a coordinated manner to protect Chile’s privileged skies.

At least 31 killed after Israeli forces open fire on starving Palestinians at US-backed aid sites
https://maktoobmedia.com/gaza-genocide/at-least-31-killed-after-israeli-forces-open-fire-on-starving-palestinians-at-us-backed-aid-sites/

✨ Spring SIGs wrapped! ✨
From Prague to Paris to Ispra, 4 GÉANT Special Interest Groups (SIGs) met to explore AI, Time & Frequency networks, service strategy development, and network operations.
Spring days packed with great ideas, useful insights, new collaborations, and our beloved Lightning Talks.
👏 Big thanks to CESNET, RENATER, EC JRC & all who joined in-person and online.
Catch up on all the highlights and takeaways here 👉

GÉANT Community Programme | GÉANT CONNECT Online
The GÉANT community programme supports research and education through the activities of Special Interest Groups and Task Forces and connects academia, the business community and governmental organisations.

[OT] The force is with us, always? Tuning quantum vacuum forces from attractive to repulsive https://news.asu.edu/20190304-force-us-always-tuning-quantum-vacuum-forces-attractive-repulsive Now can we tune The vOICe soundscapes f…

From ⁨⁨⁨⁨⁨#AnnafromUkraine⁩⁩⁩⁩⁩ @AnnafromUkraine@youtube.com
ISKANDER MISSILE BRIGADE RUSSIAN ARMY BLOWN UP, #KLINTSY BRYANSK Vlog 1065: War in #Ukraine
Ukrainian Defense Forces struck

Well, this seems stupid - New Jersey is forcing the removal of many working NACS charging centers and replacing them with CCS charging.
That's already stupid. But it moves from stupid to destructive in that it NJ wants to expand the moribund CCS charge system while automobile makers are shifting away from CCS to NACS.
Perhaps we ought to remember that New Jersey is a major oil refining/gasoline producing state and thus there are political forces in NJ who abhor EVs.

This https://arxiv.org/abs/2502.06466 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

Inflatable Kirigami Crawlers
Kirigami offers unique opportunities for guided morphing by leveraging the geometry of the cuts. This work presents inflatable kirigami crawlers created by introducing cut patterns into heat-sealable textiles to achieve locomotion upon cyclic pneumatic actuation. Inflating traditional air pouches results in symmetric bulging and contraction. In inflated kirigami actuators, the accumulated compressive forces uniformly break the symmetry, enhance contraction compared to simple air pouches by two …

“Music has the capacity to ‘render nonsonorous forces sonorous’ - that is, it makes audible the general flux of forces and movements that constitute natural becoming: duration, pressure, tension and relaxation, attraction and repulsion, consistency and dissolution, and so on - pure tendencies, intensities, and events presented independently of the world of bodies and objects that constitutes the domain of representation and figuration.”

Terrific response from BBC's Ros Atkins ‪@rosatkins.bsky.social €to Trump administration's unfounded criticisms of BBC coverage of Gaza. The piece of paper held up by press sec was a tweet from student activist -pathetic.
https://www.bbc.co.uk/news/videos/c9wgq9vv51do…

Ros Atkins on... The White House claims on BBC Gaza coverage
On Tuesday White House Press Secretary Karoline Leavitt launched an attack on the BBC's coverage of reports that Israeli forces had killed Palestinians near an aid distribution centre in Gaza. She claimed that the BBC took down a story after reviewing footage. The BBC has said the claim is completely wrong and that it stands by its journalism. Ros Atkins from BBC Verify takes a look at the facts.

#Sonnenstürme verkürzen die Lebensdauer von #Starlink-Satelliten und lassen sie schneller zur Erde zurückkehren.
Durch erhöhte #Atmosphärendichte steigt der Luftwiderstan…

Tracking Reentries of Starlink Satellites During the Rising Phase of Solar Cycle 25
The exponential increase of low-Earth orbit (LEO) satellites in the past 5 years has brought into intense focus the need for reliable monitoring and reentry prediction to safeguard from space collisions and ground debris impacts. However, LEO satellites fly within the upper atmosphere region that exerts significant drag forces to their orbits, reducing their lifetimes, and increasing collision risks during dynamic events, like geomagnetic storms. Such conditions can become more severe during ge…

This https://arxiv.org/abs/2412.11569 has been replaced.
initial toot: https://mastoxiv.page/@ar…

The dark side of the forces: assessing non-conservative force models for atomistic machine learning
The use of machine learning to estimate the energy of a group of atoms, and the forces that drive them to more stable configurations, has revolutionized the fields of computational chemistry and materials discovery. In this domain, rigorous enforcement of symmetry and conservation laws has traditionally been considered essential. For this reason, interatomic forces are usually computed as the derivatives of the potential energy, ensuring energy conservation. Several recent works have questioned…

Reduction of Outflow Boundary Influence on Aerodynamic Performance using Neural Networks
Mario Christopher Bedrunka, Dirk Reith, Holger Foysi, {\L}ukasz {\L}aniewski-Wo{\l}{\l}k, Travis Mitchell
https://arxiv.org/abs/2506.05293

Reduction of Outflow Boundary Influence on Aerodynamic Performance using Neural Networks
The accurate treatment of outflow boundary conditions remains a critical challenge in computational fluid dynamics when predicting aerodynamic forces and/or acoustic emissions. This is particularly evident when employing the lattice Boltzmann method (LBM) as the numerical solution technique, which often suffers from inaccuracies induced by artificial reflections from outflow boundaries. This paper investigates the use of neural networks (NN) to mitigate these adverse boundary effects and enable…

Opinion | Operation Spiderweb’s drone attack on Russia exposes all air bases - The Washington Post
https://www.washingtonpost.com/opinions/2025/06/01/ukraine-drone-attack-russia-bombers/
Ukraines massage again to generals all…

Un train stationne Š République vers Mairie de Montreuil en raison de l'intervention des forces de l'ordre.
🤖 04/06 21:26

Stringent Constraints on New Pseudoscalars from Precision Hyperfine Splitting Measurements
Cedric Quint, Fabian Hei{\ss}e, Joerg Jaeckel, Lutz Leimenstoll, Christoph H. Keitel, Zolt\'an Harman
https://arxiv.org/abs/2506.03274

Stringent Constraints on New Pseudoscalars from Precision Hyperfine Splitting Measurements
Axion-like particles and similar new pseudoscalar bosons coupled to nucleons and electrons are predicted to lead to spin-dependent forces in atoms and ions. We argue that hyperfine structure measurements in the hydrogen- and lithium-like charge states are a sensitive probe to this effect. Employing specific differences of these splittings reduces uncertainties due to nuclear effects in hyperfine structure calculations and measurements. Using this, we show that existing measurements on Be provid…

Reuse or Generate? Accelerating Code Editing via Edit-Oriented Speculative Decoding
Peiding Wang, Li Zhang, Fang Liu, Yinghao Zhu, Wang Xu, Lin Shi, Xiaoli Lian, Minxiao Li, Bo Shen, An Fu
https://arxiv.org/abs/2506.02780

Reuse or Generate? Accelerating Code Editing via Edit-Oriented Speculative Decoding
Large Language Models (LLMs) have demonstrated remarkable capabilities in code editing, substantially enhancing software development productivity. However, the inherent complexity of code editing tasks forces existing approaches to rely on LLMs' autoregressive end-to-end generation, where decoding speed plays a critical role in efficiency. While inference acceleration techniques like speculative decoding are applied to improve the decoding efficiency, these methods fail to account for the uniqu…

A Criterion for Magnetars Producing Giant Flares
Y. Meng, Q. -S. Zhang, J. Lin
https://arxiv.org/abs/2505.24128 https://arxiv.org/pdf…

A Criterion for Magnetars Producing Giant Flares
In this work, the straight flux rope in the model of giant flares on magnetars (Meng et al. 2014) was replaced with a curved one and the equilibrium behavior of the flux rope was investigated. Two footpoints of the flux rope are anchored to the spherical surface of magnetar. The forces acting on the flux rope include magnetic tension, magnetic pressure, curvature force, gravity. The equilibrium in the flux rope, so as in the global configuration, is achieved as these forces offset each other. C…

Please join me on July 7th for next month's MediaEd Club webinar for the Media Education Lab: "Privacy, Power, and Platforms"
https://mediaeducationlab.com/index.php/events/privacy-power-and-platforms
If you missed today's / this month…

Force-Dual Modes: Subspace Design from Stochastic Forces
Otman Benchekroun, Eitan Grinspun, Maurizio Chiaramonte, Philip Allen Etter
https://arxiv.org/abs/2505.23969

Force-Dual Modes: Subspace Design from Stochastic Forces
Designing subspaces for Reduced Order Modeling (ROM) is crucial for accelerating finite element simulations in graphics and engineering. Unfortunately, it's not always clear which subspace is optimal for arbitrary dynamic simulation. We propose to construct simulation subspaces from force distributions, allowing us to tailor such subspaces to common scene interactions involving constraint penalties, handles-based control, contact and musculoskeletal actuation. To achieve this we adopt a statist…

Entirely reasonable.
"Hamas has responded to the latest US-proposed ceasefire with demands for a pathway to a permanent ceasefire, instead of a temporary one where the Israeli government could unilaterally restart hostilities as they did in March.
"They have also called for a full withdrawal of Israeli forces from the Gaza Strip and the resumption of aid and assistance to the besieged area."

Why Hamas is seeking to change the US-proposed Gaza ceasefire deal
Hamas claims the response was positive but with added provisions. Still, they’ve drawn criticism from the US and Israel.

Et ça continue https://www.lemonde.fr/international/article/2025/05/31/a-rome-des-milliers-de-personnes-manifestent-contre-la-loi-sur-…

A Rome, des milliers de personnes manifestent contre la loi sur la sécurité du gouvernement ultraconservateur de Giorgia Meloni
Ce décret-loi, adopté début avril par le gouvernement et voté jeudi par la Chambre des députés, protège notamment les forces de l’ordre en cas d’accusations de violences policières, et renforce les peines pour certains délits.

Euphemisms galore. This is reportedly called an 'incident'.
https://www.theguardian.com/world/2025/jun/01/palestinians-gunned-down-while-trying-to-reach-food-aid-site-in-gaza-hosp…

UN commission says Russian drone attacks against Kherson amount to crimes against humanity: https://benborges.xyz/2025/05/29/un-commission-says-russian-drone.html

Static vs dynamic rough energy landscapes: Where is diffusion faster?
Dmitrii E. Makarov, Peter Sollich
https://arxiv.org/abs/2506.02195 https://

Static vs dynamic rough energy landscapes: Where is diffusion faster?
Molecules in dense environments, such as biological cells, are subjected to forces that fluctuate both in time and in space. While spatial fluctuations are captured by Lifson-Jackson-Zwanzig's model of "diffusion in a rough potential", and temporal fluctuations are often viewed as leading to additional friction effects, a unified view where the environment fluctuates both in time and in space is currently lacking. Here we introduce a discrete-state model of a landscape fluctuating both in time …

Data privacy experts are calling on the government to urgently tighten regulation around facial recognition technology, amid growing concerns over its unregulated use by police forces and private companies across the UK.
https://www.computing.co.uk/news/202…

Government urged to tighten regulation around facial recognition technology
Data privacy experts are calling on the government to urgently tighten regulation around facial recognition technology, amid growing concerns over its unregulated use by police ...

Disordering a permutation symmetric system: revivals, thermalization and chaos
Manju C, Uma Divakaran, Arul Lakshminarayan
https://arxiv.org/abs/2505.24453

Disordering a permutation symmetric system: revivals, thermalization and chaos
This study explores the effects of introducing a symmetry breaking disorder on the dynamics of a system invariant under particle permutation. The disorder forces quantum states, confined to the $N+1$ dimensional completely symmetric space to penetrate the exponentially large $2^N$ dimensional Hilbert space of $N$ particles. In particular, we focus on the quantum kicked top as a Floquet system of $N$ qubits, and use linear entropy, measuring single qubit entanglement, to investigate the changes …

This https://arxiv.org/abs/2410.16466 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

An Immersed Interface Method for Incompressible Flows and Geometries with Sharp Features
The immersed interface method (IIM) for models of fluid flow and fluid-structure interaction imposes jump conditions that capture stress discontinuities generated by forces that are concentrated along immersed boundaries. Most prior work using the IIM for fluid dynamic applications has focused on smooth interfaces, but boundaries with sharp features such as corners and edges can appear in practical analyses, particularly on engineered structures. The present study builds on our work to integrat…

Autre bonne nouvelle : le Fidesz d’Orbšn est Š son niveau le plus faible dans les sondages depuis au moins une décennie.
#Hongrie #Europe #sondage

Characterization of NbTi wires for the electron-ion collider project
Jun Lu, Jeremy Levitan Noah Gavin, Aniket Ingrole, Holger Witte, Peng Xu, Ye Bai
https://arxiv.org/abs/2506.05004

Characterization of NbTi wires for the electron-ion collider project
The Electron-Ion Collider (EIC) is a proposed machine to explore the behaviour of the fundamental particles and forces that bind atomic nuclei together. The design and construction of the EIC are underway at Brookhaven National Laboratory in collaboration with Thomas Jefferson National Accelerator Facility. EIC will use several different types of superconducting strands for magnets near the interaction region (IR). At beam injection, the magnetic field is usually very low compared with its maxi…

This https://arxiv.org/abs/2505.20368 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csIR_…

Hierarchical Retrieval with Evidence Curation for Open-Domain Financial Question Answering on Standardized Documents
Retrieval-augmented generation (RAG) based large language models (LLMs) are widely used in finance for their excellent performance on knowledge-intensive tasks. However, standardized documents (e.g., SEC filing) share similar formats such as repetitive boilerplate texts, and similar table structures. This similarity forces traditional RAG methods to misidentify near-duplicate text, leading to duplicate retrieval that undermines accuracy and completeness. To address these issues, we propose the …

This https://arxiv.org/abs/2411.04619 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Shear-induced force and dispersion due to buoyancy in a horizontal Hele-Shaw cell
This paper investigates shear flow in a Hele-Shaw cell, driven by varying horizontal buoyancy forces resulting from a horizontal density gradient induced by a scalar field. By employing asymptotic methods and taking the dependence of density and transport coefficients on the scalar field into account, effective two-dimensional hydrodynamic equations coupled with the scalar conservation equation are derived. These equations determine an effective diffusion coefficient for the scalar field accoun…

The role of the Lorentz force in sunspot equilibrium
J. M. Borrero, A. Pastor Yabar, M. Schmassmann, M. Rempel, M. van Noort, M. Collados
https://arxiv.org/abs/2505.23986

The role of the Lorentz force in sunspot equilibrium
Sunspots survive on the solar surface for time-scales ranging from days to months. This requires them to be in an equilibrium involving magnetic fields and hydrodynamic forces. Unfortunately, theoretical models of sunspot equilibrium are very simplified as they assume that spots are static and possess a self-similar and axially symmetric magnetic field. These assumptions neglect the role of small scale variations of the magnetic field along the azimuthal direction produced by umbral dots, light…

Good Morning #Canada
The Battle of Jumonville Glen, OTD in 1754, between French Canadian and American military forces, was notable because it was the opening battle of the French and Indian War, the 1st combat action for 21 year old George Washington, and ultimately led England and France into conflict in the global Seven Years’ War. The assassination of the French-Canadian commander would also darken Washington's reputation for life.
#CanadaIsAwesome #Colonialism
https://en.wikipedia.org/wiki/Battle_of_Jumonville_Glen

China’s president, Xi Jinping, has reportedly told his generals to be ready by 2027 to conquer the self-governing island of Taiwan,
which he regards as stolen sovereign territory.
US officials warned last week that China already has sufficient capability to invade now,
with amphibious landing craft,
D-day-style floating docks, paratroopers and expanded air combat and missile forces in a constant state of readiness.
Recent intimidating offshore military exercises…

“We’re in a moment when the moral forces of the world and religious forces of the world have a deep responsibility to say it doesn’t have to be this way.”
—The Divinity School's William Barber in today's NY Times speaking about the wars, polarization, inequality, disinformation, and other challenges #PopeLeo must contend with as he begins his papacy

For Catholics, the Pope Is a Holy Father. For the World, He Is a Powerful Voice
The papacy is a global platform, so the issues Pope Leo chooses to focus on can resonate far beyond the church.

Feel the Force: Contact-Driven Learning from Humans
Ademi Adeniji, Zhuoran Chen, Vincent Liu, Venkatesh Pattabiraman, Raunaq Bhirangi, Siddhant Haldar, Pieter Abbeel, Lerrel Pinto
https://arxiv.org/abs/2506.01944

Feel the Force: Contact-Driven Learning from Humans
Controlling fine-grained forces during manipulation remains a core challenge in robotics. While robot policies learned from robot-collected data or simulation show promise, they struggle to generalize across the diverse range of real-world interactions. Learning directly from humans offers a scalable solution, enabling demonstrators to perform skills in their natural embodiment and in everyday environments. However, visual demonstrations alone lack the information needed to infer precise contac…

Russia amassed enough troops to attack Ukraine's Sumy Oblast, Border Guard warns: https://benborges.xyz/2025/05/29/russia-amassed-enough-troops-to.html

"The Christian right has its own version of events: Innocent Christian worshippers were mobbed at a city park by anti-Christians and the city endorsed their persecution. But this was not the story they were telling on social media before the protest. In their words, the rally was intended to be a battle in a spiritual war. Against the child “butchers,” the demonic forces, the unholy."
Invading “Antifa-Land” - The Stranger
https://www.thestranger.com/news/2025/05/30/80080084/invading-antifa-land

Is it just me, or are many Europeans oscillating wildly between hilarity and despair to see Americans finally starting to grope towards a dimly seen, formless shape that will eventually emerge from their collective cognitive mist, revealing that the holy Constitution is, in fact, no match for the forces we've spent 2052 years kicking back against?
Don't get me wrong, it was an outstanding landmark achievement for the late 18th century. But that's getting on for 250 years ag…

This https://arxiv.org/abs/2502.09096 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nuc…

Low-energy spectra of nobelium isotopes: Skyrme random-phase-approximation analysis
Low-energy spectra in the isotopic chain $^{250-262}$No are systematically investigated within the fully self-consistent Quasiparticle Random-Phase-Approximation (QRPA) using Skyrme forces SLy4, SLy6, SkM* and SVbas. QRPA states of multipolarity $λμ$=20, 22, 30, 31, 32, 33, 43, 44 and 98 are considered. The main attention is paid to isotopes $^{252}$No and $^{254}$No where the most extensive experimental spectroscopic information is available. In these two nuclei, a reasonable description of …

CHESS Compact Wiggler construction report
Alexander Temnykh, Ivan Temnykh
https://arxiv.org/abs/2505.24585 https://arxiv.org/pdf/2505…

CHESS Compact Wiggler construction report
We developed, built, characterized on bench and beam-tested a permanent magnet (PM) Compact Wiggler (CW) prototype with a hydraulic assist gap-controlling mechanism. The prototype is of ~50cm long, 20cm wide and 40cm high and weights ~50kg. Magnetic structure has a 76.2mm period. At 6.5mm minimal gap the structure demonstrated ~2.3 Tesla peak field. At this gap, the magnet arrays attract each other with 7,990 N (1,796 lbf) force. Hydraulic system is employed to balance the attractive forces. He…

Key date is approaching for Trump to invoke the Insurrection Act
"Back in Washington, the Executive Officer for the Joint Staff refuses to convey additional orders continuing martial law from the White House — and further notifies the forces that illegal orders have been issued, and that the president has acted ultra vires (i.e. “beyond his authority”) to his constitutional executive powers by issuing unlawful orders. He then proceeds to the White House with the Provost Marshal of the Military District of Washington, accompanied by a number of MPs, where they arrest the president and the vice president for violating their oaths of office."
#USPolitics #MarshalLaw
https://www.sfchronicle.com/opinion/openforum/article/trump-insurrection-act-april-20-20269810.php

Not Just $N_e$ $N_e$-more: New Applications for SMC from Ecology to Phylogenies
David Peede, Trevor Cousins, Arun Durvasula, Anastasia Ignatieva, Toby G. L. Kovacs, Alba Nieto, Emily E. Puckett, Elizabeth T. Chevy
https://arxiv.org/abs/2506.00692

Not Just $N_e$ $N_e$-more: New Applications for SMC from Ecology to Phylogenies
Genomes contain the mutational footprint of an organism's evolutionary history, shaped by diverse forces including ecological factors, selective pressures, and life history traits. The sequentially Markovian coalescent (SMC) is a versatile and tractable model for the genetic genealogy of a sample of genomes, which captures this shared history. Methods that utilize the SMC, such as PSMC and MSMC, have been widely used in evolution and ecology to infer demographic histories. However, these method…

Nordic countries are serious about emergency preparations. We should be too.
https://apnews.com/video/how-norwegians-are-preparing-for-emergencies-1fb35749bdfa4905be8caef5feabb5d2

How Norwegians are preparing for emergencies
Local authorities in Norway have dusted off Cold War-era bomb shelters, installed a new satellite communications system and are working with the military on plans to help a deployment of Western forces in case of conflict.

Dib – Equipotenziale 003
#byncnd

“Apocalypse forces us to radically change. But by facing the future with optimism instead of doom, we can transform ourselves into the kinds of people-the kinds of communities—who can survive.”
https://slate.com/technology/2025/05/h

Integrated design of system structure and delayed resonator towards efficient non-collocated vibration absorption
Adam Peichl, Mat\v{e}j Ku\v{r}e, Wim Michiels, Tom\'a\v{s} Vyhl\'idal
https://arxiv.org/abs/2505.23608

Integrated design of system structure and delayed resonator towards efficient non-collocated vibration absorption
The problem of non-collocated vibration absorption by a delayed resonator is addressed with emphasis on system fatigue resistance and energy efficiency of control actions. The analysis is performed for a system consisting of an arbitrary large series of flexibly linked single-degree-of-freedom masses. For the stage where the vibration of the target mass is fully absorbed by the non-collocated resonator, key forces, motion amplitudes and potential energies across the system structure are assesse…

#israel #genocide #Palestine #Gaza

Namibia observes first official Genocide Remembrance Day, marking the closure of German-run concentration camps in 1908.
This commemoration honors the victims of the Herero and Nama genocide, perpetrated by German colonial forces between 1904 and 1908. During this period, tens of thousands of Herero and Nama people were killed through mass executions, forced displacement, and starvation.
Namibia to hold first official commemoration of german clonial-era genocide

Namibia to hold first official commemoration of german clonial-era genocide | Africanews
The upcoming commemoration is seen as a significant step in Namibia's efforts to acknowledge and remember this painful chapter of its history.

The Co-Evolution of Stellar Wind-blown Bubbles and Photoionized Gas I: Physical Principles and a Semi-Analytic Model
Lachlan Lancaster, Jeong-Gyu Kim, Greg L. Bryan, Shyam H. Menon, Eve C. Ostriker, Chang-Goo Kim
https://arxiv.org/abs/2505.22730

The Co-Evolution of Stellar Wind-blown Bubbles and Photoionized Gas I: Physical Principles and a Semi-Analytic Model
We propose a new framework for the simultaneous feedback of stellar winds and photo-ionizing radiation from massive stars, distinguishing the locations where forces are applied, and consequences for internal spatio-temporal evolution of the whole feedback bubble (FB). We quantify the relative dynamical importance of wind-blown bubbles (WBB) versus the photoionized region (PIR) by the ratio of the radius at which the WBB is in pressure equilibrium with the PIR, $R_{\rm eq}$, to the Strömgren ra…

This https://arxiv.org/abs/2410.16466 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

An Immersed Interface Method for Incompressible Flows and Geometries with Sharp Features
The immersed interface method (IIM) for models of fluid flow and fluid-structure interaction imposes jump conditions that capture stress discontinuities generated by forces that are concentrated along immersed boundaries. Most prior work using the IIM for fluid dynamic applications has focused on smooth interfaces, but boundaries with sharp features such as corners and edges can appear in practical analyses, particularly on engineered structures. The present study builds on our work to integrat…

Russian attacks against Ukraine kill 3, injure 27 over past day: https://benborges.xyz/2025/05/29/russian-attacks-against-ukraine-kill.html

Synchronization of identical oscillators on a sphere: exact results with external forces and higher-order interactions
Guilherme S. Costa, Marcel Novaes, Ricardo Fariello, Marcus A. M. de Aguiar
https://arxiv.org/abs/2505.17255

Synchronization of identical oscillators on a sphere: exact results with external forces and higher-order interactions
We study the dynamics of the Kuramoto model on the sphere under higher-order interactions and an external periodic force. For identical oscillators, we introduce a novel way to incorporate three- and four-body interactions into the dynamics of the order parameter, allowing for a full dimensional reduction of this system. We discuss how such reduction can be implemented in two different ways and how they are related. When restricted to the equator, the dynamics is similar to that of the usual Ku…

Multicomponent Linear Transport in the Absence of Local Equilibrium
Yu-Jen Chiu, Eric M. Weiner, Ahmad K. Omar
https://arxiv.org/abs/2505.23906 https://

Multicomponent Linear Transport in the Absence of Local Equilibrium
The linear laws of transport phenomena are central in our description of irreversible processes in systems across the physical sciences. Linear irreversible thermodynamics allows for the identification of the underlying forces driving transport and the structure of the relevant transport coefficients for systems that are locally in equilibrium. Increasingly, linear relations are found to describe transport in systems in which a local equilibrium hypothesis is unlikely to hold. Here, we derive a…

Packed up my XBOX and large TV in the basement today :-(
I don't play video games every day, but 2 or 3 days a week, my daughter, who lives in Toronto, and I will play Halo online and defend the universe from Covenant forces. It's now 22 days until the moving trucks arrive, and planning for activities each day is underway. We have to allocate time for yard maintenance, packing, and cleaning. Accompanying music choices are important...
#MyPlaylist #RandomTune
https://youtu.be/t267aQJcwjs?si=jb8_X470NFFXY6Yp

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.

This https://arxiv.org/abs/2411.05499 has been replaced.
initial toot: https://mastoxiv.page/@ar…

On nonlinear transitions, minimal seeds and exact solutions for the geodynamo
Nearly fifty years ago, Roberts (1978) postulated that Earth's magnetic field, which is generated by turbulent motions of liquid metal in its outer core, likely results from a subcritical (finite-amplitude) dynamo instability characterised by a dominant balance between Coriolis, pressure and Lorentz forces. Here we numerically explore subcritical convective dynamo action in a spherical shell, using techniques from optimal control and dynamical systems theory to uncover the nonlinear dynamics of…

Benchmarking Universal Machine Learning Interatomic Potentials for Real-Time Analysis of Inelastic Neutron Scattering Data
Bowen Han, Yongqiang Cheng
https://arxiv.org/abs/2506.01860

Benchmarking Universal Machine Learning Interatomic Potentials for Real-Time Analysis of Inelastic Neutron Scattering Data
The accurate calculation of phonons and vibrational spectra remains a significant challenge, requiring highly precise evaluations of interatomic forces. Traditional methods based on the quantum description of the electronic structure, while widely used, are computationally expensive and demand substantial expertise. Emerging universal machine learning interatomic potentials (uMLIPs) offer a transformative alternative by employing pre-trained neural network surrogates to predict interatomic forc…

Towards Industrial Convergence : Understanding the evolution of scientific norms and practices in the field of AI
Antoine Houssard
https://arxiv.org/abs/2505.17945

Towards Industrial Convergence : Understanding the evolution of scientific norms and practices in the field of AI
In the field of artificial intelligence (AI) research, there seems to be a rapprochement between academics and industrial forces. The aim of this study is to assess whether and to what extent industrial domination in the field as well as the ever more frequent switch between academia and industry resulted in the adoption of industrial norms and practices by academics. Using bibliometric information and data on scientific code, we aimed to understand academic and industrial researchers' practice…

This https://arxiv.org/abs/2502.08602 has been replaced.
initial toot: https://mastoxiv.page/@arXi…

Stretching Response of a Polymer Chain with Deformable Bonds
The stretching response of polymer chains fundamentally determines the mechanical properties of polymer networks. In this Letter, we develop a statistical mechanics model that incorporates both bond stretching and bond angle deformation, enabling accurate predictions of chain behavior up to large forces. We further propose a semianalytical deformable freely rotating chain (dFRC) model, which represents the chain as a freely rotating chain with effective bond stretch and bond angle that depend o…

This https://arxiv.org/abs/2411.05607 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nli…

Suppressing parametric resonance of a Hyperloop vehicle using a parametric force
In this paper, we study the stability of a simple model of a Hyperloop vehicle resulting from the interaction between electromagnetic and aeroelastic forces for both constant and periodically varying coefficients (i.e., parametric excitation). For the constant coefficients, through linear stability analysis, we analytically identify three distinct regions for the physically significant equilibrium point. Further inspection reveals that the system exhibits limit-cycle vibrations in one of these …

This https://arxiv.org/abs/2505.16750 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Theory of cell size regulation during migration in adhered cells
Cell migration is closely linked to cell shape, yet cell size is often assumed to remain constant. This assumption is challenged by recent experiments showing that cells undergo volume loss during spreading and swelling upon activation, with migration velocity correlated to cell size. In this Letter, we present a minimal theoretical framework for cellular size regulation and its influence on migration velocity. We connect cell size to membrane potential and active, actin-driven forces. Spatial …

«L’Allemagne doit s’engager de toutes ses forces pour préserver la sécurité d’Israël et des Juifs dans le monde, mais cela ne justifie pas tout. Affamer les Palestiniens et aggraver délibérément la situation humanitaire de manière dramatique n’a rien Š voir avec la garantie du droit Š l’existence d’Israël, et cela ne peut pas non plus être la raison d’Etat allemande», estime Merz.
https://www.letemps.ch/monde/depassee-vis-a-vis-d-israel-depuis-le-7-octobre-l-allemagne-change-de-ton-face-au-desastre-de-gaza

Brain-dead mother. Brain-damaged fetus. No hope for either. So torture their family by keeping both alive until the at-least horribly disabled baby can be delivered and then suffer for months or years with their brain damage. This is what "pro-life" means...
https://www.newsweek.co…

Abortion Law Forces Doctors to Keep Pregnant Brain Dead Woman Alive
"This decision should've been left to us," said the mother of a woman who is pregnant and has been brain dead for over 90 consecutive days.

This https://arxiv.org/abs/2402.00719 has been replaced.
link: https://scholar.google.com/scholar?q=a

Geometric Contact Potential
Barrier potentials gained popularity as a means for robust contact handling in physical modeling and for modeling self-avoiding shapes. The key to the success of these approaches is adherence to geometric constraints, i.e., avoiding intersections, which are the cause of most robustness problems in complex deformation simulation with contact. However, existing barrier-potential methods may lead to spurious forces and imperfect satisfaction of the geometric constraints. They may have strong resol…

Glimmers of sanity #gaza

The Israeli Soldiers Who Refuse to Fight in Gaza
As Benjamin Netanyahu rallies troops for his latest offensive in Israel’s war in Gaza, some reservists in the Israel Defense Forces are resisting the call. Ruth Margalit reports.

Tracking Reentries of Starlink Satellites During the Rising Phase of Solar Cycle 25
Denny M. Oliveira, Eftyhia Zesta, Katherine Garcia-Sage
https://arxiv.org/abs/2505.13752

Tracking Reentries of Starlink Satellites During the Rising Phase of Solar Cycle 25
The exponential increase of low-Earth orbit (LEO) satellites in the past 5 years has brought into intense focus the need for reliable monitoring and reentry prediction to safeguard from space collisions and ground debris impacts. However, LEO satellites fly within the upper atmosphere region that exerts significant drag forces to their orbits, reducing their lifetimes, and increasing collision risks during dynamic events, like geomagnetic storms. Such conditions can become more severe during ge…

Theory and simulation of elastoinertial rectification of oscillatory flows in two-dimensional deformable rectangular channels
Uday M. Rade, Shrihari D. Pande, Ivan C. Christov
https://arxiv.org/abs/2505.22799

Theory and simulation of elastoinertial rectification of oscillatory flows in two-dimensional deformable rectangular channels
A slender two-dimensional (2D) channel bounded by a rigid bottom surface and a slender elastic layer above deforms when a fluid flows through it. Hydrodynamic forces cause deformation at the fluid-solid interface, which in turn changes the cross-sectional area of the fluidic channel. The nonlinear coupling between flow and deformation, along with the attendant asymmetry in geometry caused by flow-induced deformation, produces a streaming effect (a non-zero cycle-average despite time-periodic fo…

This https://arxiv.org/abs/2404.19158 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Protein-DNA Co-condensation is Prewetting to a Collapsed Polymer
The three-dimensional organization of chromatin is thought to play an important role in controlling gene expression. Specificity in expression is achieved through the interaction of transcription factors and other nuclear proteins with particular sequences of DNA. At unphysiological concentrations many of these nuclear proteins can phase-separate in the absence of DNA, and it has been hypothesized that, in vivo, the thermodynamic forces driving these phases help determine chromosomal organizati…

This https://arxiv.org/abs/2503.18782 has been replaced.
initial toot: https://mastoxiv.page/@arXi…

Adhesion differentials control the rheology of biomimetic emulsions
Animal morphogenesis involves complex tissue deformation processes, which require tight control over tissue rheology. Yet, it remains insufficiently understood how tissue rheology results from the interplay between cellular packing and cellular forces, such as cortical tension, cell pressure, and cell-cell adhesion. Here, we follow a biomimetic approach to study this interplay, focusing on the cellular adhesion hierarchy. We mimic adhesive cells with oil droplets whose adhesion strength and spe…

Space Charge in Circular Machines
Massimo Ferrario, Mauro Migliorati, Luigi Palumbo
https://arxiv.org/abs/2505.14091 https://arxiv.or…

Space Charge in Circular Machines
Space charge forces, which arise directly from the beam's charge distribution and include the influence of image charges and currents induced by interactions with a perfectly conducting, smooth pipe, are very important in high-intensity, low-energy accelerators. These forces play a key role under various beam dynamics regimes, leading to effects such as energy spread, modifications of betatron tunes, and potential instabilities. This lecture will explore the fundamental characteristics of space…

CFD-Based Quantification of Hemodynamic Variables in Cerebral Aneurysms: How Hemodynamics Shape Aneurysm Fate
Reza Bozorgpour, Pilwan Kim
https://arxiv.org/abs/2505.14695

CFD-Based Quantification of Hemodynamic Variables in Cerebral Aneurysms: How Hemodynamics Shape Aneurysm Fate
Cerebral aneurysms are pathological dilations of intracranial arteries that can rupture with devastating consequences, including subarachnoid hemorrhage, stroke, and death. Accumulating evidence indicates that local hemodynamic forces play a critical role in aneurysm initiation, growth, and rupture. Computational fluid dynamics (CFD) and imaging-based techniques have enabled the extraction of various hemodynamic variables to characterize these flow conditions. However, the literature is highly …

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…

This https://arxiv.org/abs/2503.05053 has been replaced.
initial toot: https://mastoxiv.page/@arXi…

Multi-phase-field Models of Biological Tissues
The development of complex multicellular organisms from a single parent cell is a highly orchestrated process that cells conduct collectively without central guidance, creating intricate dynamic patterns essential for development and regeneration. Despite significant advances in imaging spatiotemporal dynamics of cell collectives and mechanical characterization techniques, the role of physical forces in biological functions remains poorly understood. Physics-based models are crucial in compleme…