Tootfinder

Anatomy of Two Giant Deals: The U.A.E. Got Chips. The Trump Team Got Crypto Riches.
A lucrative transaction involving the Trump family’s cryptocurrency firm and an agreement giving the Emiratis access to A.I. chips were connected in ways that have not been previously reported.

In Giant Deals, U.A.E. Got Chips, and Trump Team Got Crypto Riches
A lucrative transaction involving the Trump family’s cryptocurrency firm and an agreement giving the Emiratis access to A.I. chips were connected in ways that have not been previously reported.

On Setting Up a Raspberry Pi 2 as Off-grid Server (2015) - Read how I set up my solar-powered RPi2 (previously a Model B then a B ) to take on load from servers elsewhere on the Internet... #RPi #frugal #offGrid

On Setting Up a Raspberry Pi 2 as Off-grid Server (2015)
Read how I set up my solar-powered RPi2 (previously a Model B then a B+) to take on load from servers elsewhere on the Internet... #RPi #frugal #offGrid

Hadn’t heard about this previously, but the people who are organizing the version local to me are definitely good folk whose judgment I trust: https://drawtheline.world
(Not just Canada - the web site pulls in your local version.)

TSMC reports Q3 net profit up 39% YoY to ~$14.8B, beating est., after previously reporting a 30% rise in revenue, the latest sign of robust spending on AI chips (Debby Wu/Bloomberg)
https://www.bloomberg.com/news/articles/20…

Papers with U.S. State Department markings, found Friday morning in the business center of an Alaskan hotel, revealed previously undisclosed and potentially sensitive details about the Aug. 15 meetings between President Donald Trump and Russian President Vladimir V. Putin in Anchorage.
Eight pages, that appear to have been produced by U.S. staff and left behind accidentally, shared precise locations and meeting times of the summit and phone numbers of U.S. government employees

It should be noted that the Nacirema absolutely do kill those outside of their tribes during highly ritualized combat. In fact, they are known and feared by many surrounding tribes for their war-like nature. But the previously mentioned taboo seems to be against the execution of the ritual for either enslavement or sacrifice of outsiders for sacrifice or enslavement within tribal territory. Similarly, the Nacirema will not seize slaves during their war raids to bring within their territory. However, it does seem that the tribute system which the Nacirema impose on other tribes favors slavery.
The Elihcian people even tell stories of a chief who tried to end a slave-like practice among their people and refused tribute to the Nacirema. The chief of the Nacirema send emissaries to plot the murder of great chief of the Elihcian with the strongest nobles who were the largest slave owners. The war chief of the Elihcian, a friend of the Nacirema chief, then took over the tribe, enslaved many and paid even more tribute to the Nacirema chief. Many tribes to the South of the Nacirema have very similar stories.
Strangely, again, the Nacirema do not see themselves as war-like. Rather, they see themselves as peaceful. When talking about war and war-raids, they will even sometimes use a phase that means "maintaining" or "sustaining peace" to describe them.
Again, it seems to be the use of ritual that allows them to declare slavery and human sacrifice as "justice" and to declare war as "peace."

In #Helsinki there's only one person I trust with repairing a #watch without screwing up (there was another previously, but he retired). Today I went and asked his name, let him know I've always been happy with his work and I'll go back with the next watch to repair the next time he has a shift there. …

The Bullshitter-In-Chief says (after previously saying he wouldn't "waste time" with a sympathy call)...
https://www.theguardian.com/us-news/2025/sep/15/trump-melissa-hortman-charlie-kirk-flags

Anatomy of Two Giant Deals: The U.A.E. Got Chips. The Trump Team Got Crypto Riches: A lucrative transaction involving the Trump family’s cryptocurrency firm and an agreement giving the Emiratis access to A.I. chips were connected in ways that have not been previously reported.
In Giant Deals, U.A.E. Got Chips, and Trump Team Got Crypto Riches - The New York Times
https://archive.ph/DtDEo

No puedo confirmar ni desmentir que haya encargado en preventa esta belleza de vinilo. El EP de «Radio Free Europe», que fue el primer single publicado por R.E.M.
#REM #Vinilos #VinylRecords

#Minnesota Pubic Radio (MPR) parent company cuts 30 jobs following federal funding cuts | MPR News (h/t akuzee@bsky.social)
https://www.mprnews.org/story/2025/08/15/m

MPR parent company cuts 30 jobs following federal funding cuts
Minnesota Public Radio's parent company laid off 30 staff members Friday after Congress clawed back funding that it had previously approved for public broadcasting. Cuts in state funding from the Minnesota Legislature exacerbated the budget gap.

Biodiversity loss due to land use change could be highly underestimated: Study https://news.mongabay.com/2025/10/biodiversity-loss-due-to-land-use-change-could-be-highly-underestimated-study/

Biodiversity loss due to land use change could be highly underestimated: Study
A survey of Colombian birdlife, which evolved over more than a decade into the world’s largest-ever ornithological study, has found that clearing forests to create new pastures is causing as much as 60% more damage to biodiversity than previously thought. Until now, research into the impact on biodiversity of land use change has generally involved […]

As we rapidly push earth's systems away from a quasi-equilibrium state by simply adding more carbon dioxide, more methane, more nitrous oxide to the atmosphere, we start finding previously unrecognized interactions affecting things like the carbon sinks.
As a scientist, I am thrilled at the exiting research that is arising from these new observations.
As a person, I am terrified.

As we rapidly push earth's systems away from a quasi-equilibrium state by simply adding more carbon dioxide, more methane, more nitrous oxide to the atmosphere, we start finding previously unrecognized interactions affecting things like the carbon sinks.
As a scientist, I am thrilled at the exiting research that is arising from these new observations.
As a person, I am terrified.

🏖️ Seaweed on sandy coastlines contributes to greenhouse gas emissions, study shows
https://phys.org/news/2025-09-seaweed-sandy-coastlines-contributes-greenhouse.html

Seaweed on sandy coastlines contributes to greenhouse gas emissions, study shows
A team of researchers from Monash University has made a discovery that could reshape our understanding of greenhouse gas emissions from coastal ecosystems. Published in Nature Geoscience, the study reveals sandy coastlines, which make up half the world's continental margins, are a previously overlooked source of methane.

Cohere hires Joelle Pineau, who previously led Meta's FAIR lab, as chief AI officer, to oversee AI strategy across Cohere's research, product, and policy teams (Maxwell Zeff/TechCrunch)
https://techcrunch.com/2025/08/14/cohe

Cohere hires long-time Meta research head Joelle Pineau as its chief AI officer | TechCrunch
Cohere has hired Joelle Pineau, Meta's former VP of AI research who previously oversaw the tech giant's fundamental AI research (FAIR) lab. In her newly created Chief AI Officer role, Pineau will oversee AI strategy across Cohere's research, product and policy teams.

Multitask finetuning and acceleration of chemical pretrained models for small molecule drug property prediction
Matthew Adrian, Yunsie Chung, Kevin Boyd, Saee Paliwal, Srimukh Prasad Veccham, Alan C. Cheng
https://arxiv.org/abs/2510.12719

Multitask finetuning and acceleration of chemical pretrained models for small molecule drug property prediction
Chemical pretrained models, sometimes referred to as foundation models, are receiving considerable interest for drug discovery applications. The general chemical knowledge extracted from self-supervised training has the potential to improve predictions for critical drug discovery endpoints, including on-target potency and ADMET properties. Multi-task learning has previously been successfully leveraged to improve predictive models. Here, we show that enabling multitasking in finetuning of chemic…

Biasing Frontier-Based Exploration with Saliency Areas
Matteo Luperto, Valerii Stakanov, Giacomo Boracchi, Nicola Basilico, Francesco Amigoni
https://arxiv.org/abs/2508.10689 ht…

Biasing Frontier-Based Exploration with Saliency Areas
Autonomous exploration is a widely studied problem where a robot incrementally builds a map of a previously unknown environment. The robot selects the next locations to reach using an exploration strategy. To do so, the robot has to balance between competing objectives, like exploring the entirety of the environment, while being as fast as possible. Most exploration strategies try to maximise the explored area to speed up exploration; however, they do not consider that parts of the environment …

zkToken: Empowering Holders to Limit Revocation Checks for Verifiable Credentials
Praveensankar Manimaran, Mayank Raikwar, Thiago Garrett, Arlindo F. da Concei\c{c}\~ao, Leander Jehl, Roman Vitenberg
https://arxiv.org/abs/2509.11934

zkToken: Empowering Holders to Limit Revocation Checks for Verifiable Credentials
Systems managing Verifiable Credentials are becoming increasingly popular. Unfortunately, their support for revoking previously issued credentials allows verifiers to effectively monitor the validity of the credentials, which is sensitive information. While the issue started to gain recognition, no adequate solution has been proposed so far. In this work, we propose a novel framework for time-limited continuous verification. The holder is able to individually configure the verification period…

Which Word Orders Facilitate Length Generalization in LMs? An Investigation with GCG-Based Artificial Languages
Nadine El-Naggar, Tatsuki Kuribayashi, Ted Briscoe
https://arxiv.org/abs/2510.12722

Which Word Orders Facilitate Length Generalization in LMs? An Investigation with GCG-Based Artificial Languages
Whether language models (LMs) have inductive biases that favor typologically frequent grammatical properties over rare, implausible ones has been investigated, typically using artificial languages (ALs) (White and Cotterell, 2021; Kuribayashi et al., 2024). In this paper, we extend these works from two perspectives. First, we extend their context-free AL formalization by adopting Generalized Categorial Grammar (GCG) (Wood, 2014), which allows ALs to cover attested but previously overlooked cons…

T-dualities and scale-separated AdS$_3$ in type I
Zheng Miao, Muthusamy Rajaguru, George Tringas, Timm Wrase
https://arxiv.org/abs/2509.12801 https://arxiv…

T-dualities and scale-separated AdS$_3$ in type I
We perform three T-dualities on previously found, classical $\mathcal{N}=1$ scale-separated AdS$_3$ solutions of massive type IIA supergravity. These solutions arose from a compactification on a toroidal $G_2$-holonomy space with smeared O2/D2 and O6/D6 sources. The T-dual backgrounds are classical $\mathcal{N}=1$ AdS$_3$ solutions of type IIB supergravity with O5/D5 and O9/D9 sources (type I) compactified on a space with $G_2$-structure and non-vanishing Ricci scalar. We generalize the origina…

Contraction and entropy production in continuous-time Sinkhorn dynamics
Anand Srinivasan, Jean-Jacques Slotine
https://arxiv.org/abs/2510.12639 https://arx…

Contraction and entropy production in continuous-time Sinkhorn dynamics
Recently, the vanishing-step-size limit of the Sinkhorn algorithm at finite regularization parameter $\varepsilon$ was shown to be a mirror descent in the space of probability measures. We give $L^2$ contraction criteria in two time-dependent metrics induced by the mirror Hessian, which reduce to the coercivity of certain conditional expectation operators. We then give an exact identity for the entropy production rate of the Sinkhorn flow, which was previously known only to be nonpositive. Exam…

New Leak Reveals Raiders Are ‘Open’ to Trading Away Important Starter https://heavy.com/sports/nfl/las-vegas-raiders/jakobi-meyers-trade-rumors-espn/?adt_ei=[email]

Donald Trump berated President Volodymyr Zelensky in the Oval Office.
He allowed the Pentagon twice to halt prearranged military shipments to Ukraine.
He promised that when the current tranche of armaments runs out, there will be no more.
He has cut or threatened to cut the U.S. funds that previously supported independent Russian-language media and opposition.
His administration is slowly, quietly easing sanctions on Russia, ending “basic sanctions and export control …

Trump Has No Cards
Why would Putin need to make a deal with him?

Impact of a Sharpness Based Loss Function for Removing Out-of-Focus Blur
Uditangshu Aurangabadkar, Darren Ramsook, Anil Kokaram
https://arxiv.org/abs/2509.11735 https://

Impact of a Sharpness Based Loss Function for Removing Out-of-Focus Blur
Recent research has explored complex loss functions for deblurring. In this work, we explore the impact of a previously introduced loss function - Q which explicitly addresses sharpness and employ it to fine-tune State-of-the-Art (SOTA) deblurring models. Standard image quality metrics such as PSNR or SSIM do not distinguish sharpness from ringing. Therefore, we propose a novel full-reference image quality metric Omega that combines PSNR with Q. This metric is sensitive to ringing artefacts, bu…

Abundances of P, S, and K in 58 bulge spheroid stars from APOGEE
B. Barbuy, H. Ernandes, A. C. S. Fria\c{c}a, M. S. Camargo, P. da Silva, S. O. Souza, T. Masseron, M. Brauner, D. A. Garcia-Hernandez, J. G. Fernandez-Trincado, K. Cunha, V. V. Smith, A. Peerez-Villegas, C. Chiappini, A. B. A. Queiroz, B. X. Santiago, T. C. Beers, F. Anders, R. P. Schiavon, M. Valentini, D. Minniti, D. Geisler, D. Souto, V. M. Placco, M. Zoccali, S. Feltzing, M. Schultheis, C. Nitschelm

Abundances of P, S, and K in 58 bulge spheroid stars from APOGEE
We have previously studied several elements in 58 selected bulge spheroid stars, based on spectral lines in the H-band. We now derive the abundances of the less-studied elements phosphorus (P; Z=15), sulphur (S; Z=16), and potassium (K; Z=19). The abundances of P, S, and K in 58 bulge spheroid stars are compared both with the results of a previous analysis of the data from the Apache Point Observatory Galactic Evolution Experiment (APOGEE), and with a few available studies of these elements. We…

my therapist who has previously said to me "you're not scaring the hoes. well, at least not that particular hoe"

Pathfinding in Self-Deleting Graphs
Michal Dvo\v{r}\'ak, Du\v{s}an Knop, Michal Opler, Jan Pokorn\'y, Ond\v{r}ej Such\'y, Krisztina Szil\'agyi
https://arxiv.org/abs/2507.12047

Pathfinding in Self-Deleting Graphs
In this paper, we study the problem of pathfinding on traversal-dependent graphs, i.e., graphs whose edges change depending on the previously visited vertices. In particular, we study \emph{self-deleting graphs}, introduced by Carmesin et al. (Sarah Carmesin, David Woller, David Parker, Miroslav Kulich, and Masoumeh Mansouri. The Hamiltonian cycle and travelling salesperson problems with traversal-dependent edge deletion. J. Comput. Sci.), which consist of a graph $G=(V, E)$ and a function $f\c…

Man, these New York Times games are hard! A computational perspective
Alessandro Giovanni Alberti, Flavio Chierichetti, Mirko Giacchini, Daniele Muscillo, Alessandro Panconesi, Erasmo Tani
https://arxiv.org/abs/2509.10846

Man, these New York Times games are hard! A computational perspective
The New York Times (NYT) games have found widespread popularity in recent years and reportedly account for an increasing fraction of the newspaper's readership. In this paper, we bring the computational lens to the study of New York Times games and consider four of them not previously studied: Letter Boxed, Pips, Strands and Tiles. We show that these games can be just as hard as they are fun. In particular, we characterize the hardness of several variants of computational problems related to th…

New HDE models with higher derivatives of the Hubble parameter $H$
Antonio Pasqua
https://arxiv.org/abs/2509.12284 https://arxiv.org/pdf/2509.12284

New HDE models with higher derivatives of the Hubble parameter $H$
In this work, we investigate two Dark Energy (DE) models characterized by higher-order derivatives of the Hubble parameter $H$, which generalize previously proposed DE scenarios. Assuming a power-law form of the scale factor $a(t)$ given by $a(t)=b_0t^n$, we derive analytical expressions for the DE energy density, pressure, the Equation of State (EoS) parameter, the deceleration parameter and the evolutionary form of the fractional DE density. Both non-interacting and interacting dark sector fr…

New Zealand sanctions Russian military hackers over cyberattacks on Ukraine https://therecord.media/new-zealand-russia-gru-ukraine

In response to a March FOIA request, the US Marshals Service said it held over 28,988 BTC, worth ~$3.4B at current prices, far fewer than previously believed (Daniel Kuhn/The Block)
https://www.theblock.co/post/363034/us-mar

Enhancements to the IceCube Extremely High Energy Neutrino Selection using Graph & Transformer Based Neural Networks
Maxwell Nakos (for the IceCube Collaboration), Aske Rosted (for the IceCube Collaboration), Lu Lu (for the IceCube Collaboration)
https://arxiv.org/abs/2507.11774

Enhancements to the IceCube Extremely High Energy Neutrino Selection using Graph & Transformer Based Neural Networks
KM3NeT has recently reported the detection of a very high-energy neutrino event, while IceCube has previously set upper limits on the differential neutrino flux above 100 PeV but has yet to observe a neutrino event with an energy comparable to that of the KM3NeT detection. To improve diffuse measurements above 10 PeV, we apply machine learning techniques to enhance atmospheric muon background rejection and directional reconstruction. We utilize a Graph Neural Network (GNN) to perform a classifi…

An Entropy-Guided Curriculum Learning Strategy for Data-Efficient Acoustic Scene Classification under Domain Shift
Peihong Zhang, Yuxuan Liu, Zhixin Li, Rui Sang, Yiqiang Cai, Yizhou Tan, Shengchen Li
https://arxiv.org/abs/2509.11168

An Entropy-Guided Curriculum Learning Strategy for Data-Efficient Acoustic Scene Classification under Domain Shift
Acoustic Scene Classification (ASC) faces challenges in generalizing across recording devices, particularly when labeled data is limited. The DCASE 2024 Challenge Task 1 highlights this issue by requiring models to learn from small labeled subsets recorded on a few devices. These models need to then generalize to recordings from previously unseen devices under strict complexity constraints. While techniques such as data augmentation and the use of pre-trained models are well-established for imp…

Characterization of the Metric Completion of Immersed Open-Curve Spaces
Ronny Gelman
https://arxiv.org/abs/2509.10954 https://arxiv.org/pdf/2509.10954

Characterization of the Metric Completion of Immersed Open-Curve Spaces
The completeness properties of spaces of immersed curves equipped with reparametrization-invariant Riemannian metrics have recently been the subject of active research. This thesis studies the metric completion of spaces of immersed open curves endowed with Sobolev-type metrics and examines a previously proposed conjecture that suggests the metric completion consists of a single additional point, representing all vanishing length Cauchy sequences. We disprove the conjecture in the setting of re…

Cowboys Announce Reunion With Previously Suspended DB https://heavy.com/sports/nfl/dallas-cowboys/julius-wood-reunite-with-previously-suspended-db/?adt_ei=[email]

A nonlinear model for long-range segregation
Howen Chuah, Stefania Patrizi, Monica Torres
https://arxiv.org/abs/2509.11912 https://arxiv.org/pdf/2509.11912…

A nonlinear model for long-range segregation
We study a system of fully nonlinear elliptic equations, depending on a small parameter $\eps$, that models long-range segregation of populations. The diffusion is governed by the negative Pucci operator. In the linear case, this system was previously investigated by Caffarelli, the second author, and Quitalo in \cite{CL2} as a model in population dynamics. We establish the existence of solutions and prove convergence as $\eps\to0^+$ to a free boundary problem in which populations remain segreg…

A note on Tricomi-type partial differential equations with white noise initial condition
Enrico Bernardi, Alberto Lanconelli
https://arxiv.org/abs/2509.11753 https://

A note on Tricomi-type partial differential equations with white noise initial condition
We study a class of Tricomi-type partial differential equations previously investigated in [28]. Firstly, we generalize the representation formula for the solution obtained there by allowing the coefficient in front of the second-order partial derivative with respect to $x$ to be any non integer power of $t$. Then, we analyze the robustness of that solution by taking the initial data to be Gaussian white noise and we discover that the existence of a well-defined random field solution is lost up…

Two-Dimensional Na2LiAlP2 crystal for high-performance field-effect transistors
Run-Jie Peng, Xing-Yu Wang, Jun-Hui Yuan, Nian-Nian Yu, Kan-Hao Xue, Jiafu Wang, Pan Zhang
https://arxiv.org/abs/2510.12473

Two-Dimensional Na2LiAlP2 crystal for high-performance field-effect transistors
High-performance, low-power transistors are core components of advanced integrated circuits, and the ultimate limitation of Moore's law has made the search for new alternative pathways an urgent priority. Two-dimensional (2D) materials have become the most promising exploration target due to their exceptional electronic properties and scalability. In this work, we conducted device transport research on the previously proposed 2D quaternary semiconductor Na2LiAlP2 using the non-equilibrium Green…

The Orbits of Isolated Dwarfs in the Local Group from New 3D Kinematics: Constraints on First Infall, Backsplash, and Quenching Mechanisms
Paul Bennet, Ekta Patel, Sangmo Tony Sohn, Andres del Pino, Roeland van der Marel, Mark Fardal, Kristine Spekkens, Laura Congrever Hunter, Gurtina Besla, Laura Watkins, Daniel Weisz
https://arxiv.org/ab…

The Orbits of Isolated Dwarfs in the Local Group from New 3D Kinematics: Constraints on First Infall, Backsplash, and Quenching Mechanisms
It is commonly supposed that quenched field dwarfs near the edge of the Local Group (LG) are backsplash galaxies, having previously orbited within the Milky Way (MW) or M31's virial radius, whereas galaxies on first infall should still have gas and star formation. We measured proper motions (PMs) for six dwarf galaxies located 400-1000 kpc from the MW using the Hubble Space Telescope. For four galaxies (Aquarius, Cetus, Pisces, Tucana), we report the first PMs. For the remaining two (Leo T and …

Electro-viscoelasticity of polymer melts in continuum theory
Zachary Wolfgram, Jeffrey G. Ethier, Matthew Grasinger
https://arxiv.org/abs/2509.13146 https://

Electro-viscoelasticity of polymer melts in continuum theory
Electro-viscoelastic theory for polymer melts has been extensively studied experimentally for the past century, primarily for manufacturing purposes. However, the modeling and theory for this have been minimal, leaving many questions on the mechanisms and behavior of an arbitrary flow scheme. To remedy this, previously solved overdamped Langevin equations for the Doi-Rouse model are modified to include charge and electric field potential forces. The charge sequence on the chain is hypothesized …

US embeds trackers in AI chip shipments to catch diversions to China, sources say
U.S. authorities have secretly placed location tracking devices in targeted shipments of advanced chips they see as being at high risk of illegal diversion to China, according to two people with direct knowledge of the previously unreported law enforcement tactic.
🕵️

I'm already looking forward to OpenBSD 7.8. KDE 6.4.5 has been announced in the preliminary release notes. Rafael Sadowski previously did a stellar job (with others of course) in porting 6 to OpenBSD, wonder how far they've gotten until now.
#openbsd

Was that guy on the left previously caught in some kind of explosion? Presumably, to his right hand side??
https://mstdn.social/@Free_Press/115196393717837936

"Carbon emissions from oil giants directly linked to dozens of deadly heatwaves for first time"
#FossilFuels #Heatwave #Climate

Broadband photo- and electroluminescence from silicon via momentum-expanded photonic states
Aleksei I. Noskov, Alexander B. Kotlyar, Eric O. Potma, Dmitry A. Fishman
https://arxiv.org/abs/2509.12690

Broadband photo- and electroluminescence from silicon via momentum-expanded photonic states
Silicon's indirect bandgap has long been seen as a limitation, fundamentally restricting its ability to emit light and hindering the development of silicon-based light sources. Here, we present a conceptually new solution to this persistent challenge. We demonstrate ultrabroadband photo- and electroluminescence from silicon, enabled by a novel radiative pathway mediated by momentum-expanded Heisenberg photonic states that bypass phonon-assisted transitions. This mechanism, previously demonstrat…

TSMC reports Q2 net profit up ~60% YoY to ~$13.53B, beating estimates, and forecasts ~30% sales growth in USD terms in 2025, up from mid-20% previously (Debby Wu/Bloomberg)
https://www.bloomberg.com/news/articles/2025-07-17/tsmc-p…

Spin-Valley Locking and Pure Spin-Triplet Superconductivity in Noncollinear Antiferromagnets Proximitized to Conventional Superconductors
Song-Bo Zhang, Lun-Hui Hu, Qian Niu, Zhenyu Zhang
https://arxiv.org/abs/2507.11921

Spin-Valley Locking and Pure Spin-Triplet Superconductivity in Noncollinear Antiferromagnets Proximitized to Conventional Superconductors
Unconventional antiferromagnets with spin-split bands, such as noncollinear magnets and the recently discovered altermagnets, serve as new constituents to explore unconventional superconductivity. Here, we unveil a new type and previously unappreciated nature of spin-valley locking in noncollinear antiferromagnets and exploit this texture to achieve pure spin-triplet superconductivity. Using chiral antiferromagnetic kagome lattices (e.g., Mn$_3$Ge and Mn$_3$Ga) coupled to conventional $s$-wave …

A Phase Field Formulation of Frictional Sliding Contact for 3D Fully Eulerian Fluid Structure Interactions
Biswajeet Rath, Rajeev K. Jaiman
https://arxiv.org/abs/2509.11611 http…

A Phase Field Formulation of Frictional Sliding Contact for 3D Fully Eulerian Fluid Structure Interactions
Frictional sliding contact in hydrodynamic environments can be found in a range of engineering applications. Accurate modeling requires an integrated numerical framework capable of resolving large relative motions, multiphase interactions, and nonlinear contact responses. Building on our previously developed fully Eulerian fluid structure formulation, we introduce a phase field based formulation for dynamic frictional contact in 3D. Contact detection is achieved via the overlap of diffuse inter…

Rydberg atom reception of a handheld UHF frequency-modulated two-way radio
Noah Schlossberger, Tate McDonald, Nikunjkumar Prajapati, Christopher L. Holloway
https://arxiv.org/abs/2509.11363

Rydberg atom reception of a handheld UHF frequency-modulated two-way radio
Rydberg atoms, due to their large polarizabilities and strong transition dipole moments, have been utilized as sensitive electric field sensors. While their capability to detect modulated signals has been previously demonstrated, these studies have largely been limited to laboratory-generated signals tailored specifically for atomic detection. Here, we extend the practical applicability of Rydberg sensors by demonstrating the reception of real-world frequency-modulated (FM) audio transmissions …

Owning a house makes me care about previously unimaginable things. Today, it's high-quality painter's tape.

Study: There is less room to store carbon dioxide, driver of climate change, than previously thought #carbon

Study: There is less room to store carbon dioxide, driver of climate change, than previously thought
The world has far fewer places to securely store carbon dioxide deep underground than previously thought, steeply lowering its potential to help stem global warming, according to a new study that challenges long-held industry claims about the practice.

The maximum number of triangles in $K_{1,s,t}$-free graphs
Asier Calbet, Ritesh Goenka
https://arxiv.org/abs/2508.10611 https://arxiv.org/pdf/2508.10611

The maximum number of triangles in $K_{1,s,t}$-free graphs
We consider the following generalized Turán problem: For $2 \le s \le t$, what is the maximum number of triangles in a $K_{1,s,t}$-free graph on $n$ vertices? The previously best known lower and upper bounds are $Ω(n^2)$ and $o(n^{3-1/s})$, respectively. To the best of our knowledge, all known proofs of the upper bound use the triangle removal lemma. We give a new elementary proof that avoids the use of the triangle removal lemma and improves the upper bound to $O\left(n^{3-1/s}(\log n)^{-1+1…

On defectivity of joins, reducible secants and Fr\"oberg's conjecture
Alexander Blomenhofer, Alex Casarotti
https://arxiv.org/abs/2509.10443 https://

On defectivity of joins, reducible secants and Fröberg's conjecture
We introduce the notion of r-defectivity for a vector bundle on a quasi-projective variety. Using this tool, we prove several previously unknown cases of Fröberg's conjecture and also of the postulation problem for fat point schemes. Our techniques also allow us to study r-nondefectivity for joins and secants of reducible varieties. As a consequence, we derive results for mixture distributions and partition ranks.

Trump regime rewriting climate science.
https://edition.cnn.com/2025/08/07/climate/wright-national-climate-assessments-updating

Energy chief suggests Trump administration is altering previously published climate reports
Wright said the Trump administration is updating the National Climate Assessments that have been previously published, which the administration recently removed from government websites.

Hey, I've previously mentioned Michael Sweater's cartooning stuff here (https://sweater.substack.com/).
I was nice to him, so I received 3 x free 1 month subscriptions to give away. So if you're interested, DM me an email address to receive Substack posts. First in, best spammed!
KTXHBAI!

Sweater Weather | Michael Sweater | Substack
Comics and writing straight from the desk of Michael Sweater. Click to read Sweater Weather, by Michael Sweater, a Substack publication with thousands of subscribers.

A GPU-resident Memory-Aware Algorithm for Accelerating Bidiagonalization of Banded Matrices
Evelyne Ringoot, Rabab Alomairy, Alan Edelman
https://arxiv.org/abs/2510.12705 https:…

A GPU-resident Memory-Aware Algorithm for Accelerating Bidiagonalization of Banded Matrices
The reduction of a banded matrix to a bidiagonal form is a crucial step in the Singular Value Decomposition (SVD), a cornerstone of scientific computing and AI. Despite being a highly parallel algorithm, it was previously believed to be unsuitable for GPU computation because it is memory bandwidth-bound. Recent developments in GPU hardware, including larger L1 memory per Streaming Multiprocessor/Compute Unit, have changed that. We present the first GPU algorithm for reducing a banded matrix to …

🇺🇦 #NowPlaying on KEXP's #SonicReducer
Mudhoney:
🎵 Over the Top (Previously Unreleased)
#Mudhoney
https://open.spotify.com/track/3wq0jodtPDIz4Nmoc6KKrb

Generalized Symmetries and Deformations of Symmetric Product Orbifolds
Nathan Benjamin, Suzanne Bintanja, Yu-Jui Chen, Michael Gutperle, Conghuan Luo, Dikshant Rathore
https://arxiv.org/abs/2509.12180 …

Generalized Symmetries and Deformations of Symmetric Product Orbifolds
We construct generalized symmetries in two-dimensional symmetric product orbifold CFTs $\text{Sym}^N(\mathcal{T}),$ for a generic seed CFT $\mathcal{T}$. These symmetries are more general than the universal and maximally symmetric ones previously constructed. We show that, up to one fine-tuned example when the number of copies $N$ equals four, the only symmetries that can be preserved under twisted sector marginal deformations are invertible and maximally symmetric. The results are obtained in …

🛡️ Big trees in Amazon more climate-resistant than previously believed
https://www.theguardian.com/environment/2025/sep/25/study-shows-big-trees-in-amazon-more-climate-resistant-than-previously-believed

The Second Moment of $\mathrm{GL}_3 \times \mathrm{GL}_2$ $L$-functions at Special Points
Zhi Qi
https://arxiv.org/abs/2510.11191 https://arxiv.org/pdf/251…

The Second Moment of $\mathrm{GL}_3 \times \mathrm{GL}_2$ $L$-functions at Special Points
Let $ϕ$ be a fixed Hecke--Maass form for $\mathrm{SL}_3 (\mathbb{Z})$ and $u_j $ traverse an orthonormal basis of Hecke--Maass forms for $\mathrm{SL}_2 (\mathbb{Z}) $. Let $1/4+t_j^2$ be the Laplace eigenvalue of $u_j $. In this paper, we prove the mean Lindelöf hypothesis for the second moment of $ L (1/2+it_j, ϕ\times u_j) $ on $ T < t_j \leqslant T + \sqrt{T} $. Previously, this was proven by Young on $ t_j \leqslant T$. Our approach is more direct as we do not apply the Poisson summation…

"""
But there is no certainty that madness was content to sit locked up in its immutable identity, waiting for psychiatry to perfect its art, before it emerged blinking from the shadows into the blinding light of truth. Nor is it clear that confinement was above all, or even implicitly, a series of measures put in place to deal with madness. It is not even certain that in this repetition of the ancient gesture of segregation at the threshold of the classical age, the modern world was aiming to wipe out all those who, either as a species apart or a spontaneous mutation, appeared as 'asocial'. The fact that the internees of the eighteenth century bear a resemblance to our modern vision of the asocial is undeniable, but it is above all a question of results, as the character of the marginal was produced by the gesture of segregation itself. For the day came when this man, banished in the same exile all over Europe in the mid-seventeenth century, suddenly became an outsider, expelled by a society to whose norms he could not be seen to conform; and for our own intellectual comfort, he then became a candidate for prisons, asylums and punishment. In reality, this character is merely the result of superimposed grids of exclusion.
The gesture that proscribed was as abrupt as the one that had isolated the lepers, and in both cases, the meaning of the gesture should not be mistaken for its effect. Lepers were not excluded to prevent contagion, any more than in 1657, 1 per cent of the population of Paris was confined merely to deliver the city from the 'asocial'. The gesture had a different dimension: it did not isolate strangers who had previously remained invisible, who until then had been ignored by force of habit. It altered the familiar cityscape by giving them new faces, strange, bizarre silhouettes that nobody recognised. Strangers were found in places where their presence had never previously been suspected: the process punctured the fabric of society, and undid the familiar. Through this gesture, something inside man was placed outside of himself, and pushed over the edge of our horizon. It is the gesture of confinement, in short, which created alienation.
"""
(Michel Foucault, History of Madness)

Using nonassociative algebras to classify skew polycyclic codes up to isometry and equivalence
Susanne Pumpluen
https://arxiv.org/abs/2508.10139 https://ar…

Using nonassociative algebras to classify skew polycyclic codes up to isometry and equivalence
We propose new definitions of equivalence and isometry for skew polycyclic codes that will lead to tighter classifications than existing ones. This helps to reduce the number of previously known isometry and equivalence classes, and state precisely when these different notions coincide. In the process, we classify classes of skew $(f,σ,δ)$-polycyclic codes with the same performance parameters, to avoid duplicating already existing codes. We exploit that the generator of a skew polycyclic co…

How UAE's $2B investment in Trump family's WLF is linked to the deal allowing the UAE's G42 to access AI chips, in which David Sacks played a key role (New York Times)
https://www.nytimes.com/2025/09/15/u…

In Giant Deals, U.A.E. Got Chips, and Trump Team Got Crypto Riches
A lucrative transaction involving the Trump family’s cryptocurrency firm and an agreement giving the Emiratis access to A.I. chips were connected in ways that have not been previously reported.

Martingale Optimal Transport and Martingale Schr\"odinger Bridges for Calibration of Stochastic Volatility Models
Antonios Zitridis
https://arxiv.org/abs/2510.10860 https:/…

Martingale Optimal Transport and Martingale Schrödinger Bridges for Calibration of Stochastic Volatility Models
Motivated by recent developments in the calibration of stochastic volatility models (SVMs for short), we study continuous-time formulations of martingale optimal transport and martingale Schrödinger bridge problems. We establish duality formulas and also provide alternative proofs, via different techniques, of duality results previously established in the mathematical finance literature. Applications include calibration of SVMs to SPX options, as well as joint calibration to both SPX and VIX o…

Field evaluation of a wearable instrumented headband designed for measuring head kinematics
Anu Tripathi, Yang Wan, Zhiren Zhu, Furkan Camci, Sheila Turcsanyi, Jeneel Pravin Kachhadiya, Mauricio Araiza Canizales, Alison Brooks, Haneesh Kesari, Joseph Andrews, Traci Snedden, Peter Ferrazzano, Christian Franck, Rika Wright Carlsen
https://ar…

Field evaluation of a wearable instrumented headband designed for measuring head kinematics
Purpose: To study the relationship between soccer heading and the risk of mild traumatic brain injury (mTBI), we previously developed an instrumented headband and data processing scheme to measure the angular head kinematics of soccer headers. Laboratory evaluation of the headband on an anthropomorphic test device showed good agreement with a reference sensor for soccer ball impacts to the front of the head. In this study, we evaluate the headband in measuring the full head kinematics of soccer…

VLM-3D:End-to-End Vision-Language Models for Open-World 3D Perception
Fuhao Chang, Shuxin Li, Yabei Li, Lei He
https://arxiv.org/abs/2508.09061 https://arx…

VLM-3D:End-to-End Vision-Language Models for Open-World 3D Perception
Open-set perception in complex traffic environments poses a critical challenge for autonomous driving systems, particularly in identifying previously unseen object categories, which is vital for ensuring safety. Visual Language Models (VLMs), with their rich world knowledge and strong semantic reasoning capabilities, offer new possibilities for addressing this task. However, existing approaches typically leverage VLMs to extract visual features and couple them with traditional object detectors,…

tiktok is heading toward being full maga.
If your business or life is centered on that app, take steps now to change that.
I am happy to help however I can.
https://www.independent.co.uk/news/world/americas/us-p…

Barron Trump tipped for top job at TikTok after dad tells users they ‘owe’ him for saving platform
The president has previously claimed that users ‘owe’ Barron Trump for saving the social media platform in a video from the Oval Office

The MIRI Excesses around Degenerates (MEAD) Survey I: A candidate cold brown dwarf in orbit around the nearby white dwarf 2MASS J09424023-4637176
Lo\"ic Albert (D\'epartement de Physique and Observatoire du Mont-M\'egantic, Universit\'e de Montr\'eal, Trottier Institute for Research on Exoplanets), Sabrina R. Poulsen (Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma), \'Erika Le Bourdais (D\'epartement de physique and Institut Trot…

The MIRI Excesses around Degenerates (MEAD) Survey I: A candidate cold brown dwarf in orbit around the nearby white dwarf 2MASS J09424023-4637176
The MIRI Excesses Around Degenerates Survey is a Cycle 2 James Webb Space Telescope (JWST) Survey program designed to image nearby white dwarfs in the mid-IR with the MIRI imaging mode. Only a handful of white dwarfs have previously been observed beyond 8~\micron. This survey gathered observations for 56 white dwarfs within 25~pc at 10 and 15~\micron, probing each white dwarf for unresolved IR excesses, IR flux deficits indicative of collision induced absorption, or resolved substellar companio…

„Tech companies’ use of Pfas gas at facilities may mean datacenters’ climate impact is worse than previously thought“ (via @… )
https://www.

An elementary proof that linking problems are hard
Shannon Cheng, Anna Chlopecki, Saarah Nazar, Eric Samperton
https://arxiv.org/abs/2509.13120 https://arx…

An elementary proof that linking problems are hard
We give a new, elementary proof of what we believe is the simplest known example of a ``natural'' problem in computational 3-dimensional topology that is $\mathsf{NP}$-hard -- namely, the \emph{Trivial Sublink Problem}: given a diagram $L$ of a link in $S^3$ and a positive integer $k$, decide if $L$ contains a $k$ component sublink that is trivial. This problem was previously shown to be $\mathsf{NP}$-hard in independent works of Koenig-Tsvietkova and de Mesmay-Rieck-Sedgwick-Tancer, both of wh…

Solar Flare Ion Temperatures: #SolarFlares over 6 times hotter than previously thought: https://news.st-andrews.ac.uk/archive/solar-flares-over-6-times-hotter-than-previously-thought/

Probing Hernquist dark matter with black hole shadows: A comprehensive study of various accretions
Yuxuan Shi, Hongbo Cheng
https://arxiv.org/abs/2509.11245 https://

Probing Hernquist dark matter with black hole shadows: A comprehensive study of various accretions
The appearance of a black hole shadow, in both astronomical observations and theoretical analysis, depends critically on the properties of the surrounding accretion. In this study, we analyse the emission and observational properties of a Schwarzschild black hole surrounded by a Hernquist dark matter (DM) halo by considering three simplified accretion models, which have not been previously explored in such detail. Based on our findings, direct emission contributes markedly to the whole observed…

Spatial Profiles of 3I/ATLAS CN and Ni Outgassing from Keck/KCWI Integral Field Spectroscopy
W. B. Hoogendam, B. J. Shappee, J. J. Wray, B. Yang, K. J. Meech, C. Ashall, D. D. Desai, K. Hart, J. T. Hinkle, A. Hoffman, E. M. Hu, D. O. Jones, K. Medler
https://arxiv.org/abs/2510.11779

Spatial Profiles of 3I/ATLAS CN and Ni Outgassing from Keck/KCWI Integral Field Spectroscopy
Cometary activity from interstellar objects provides a unique window into the environs of other stellar systems. We report blue-sensitive integral field unit spectroscopy of the interstellar object 3I/ATLAS from the Keck-II-mounted Keck Cosmic Web Imager on August 24, 2025 UT. We confirm previously reported CN and Ni outgassing, and present, for the first time, the radial profiles of Ni and CN emission in 3I/ATLAS. We find a characteristic $e$-folding radius of $593.7\pm14.8$ km for Ni and $841…

Beginner's Charm: Beginner-Heavy Teams Are Associated With High Scientific Disruption
Mahdee Mushfique Kamal, Raiyan Abdul Baten
https://arxiv.org/abs/2509.10389 https://

Beginner's Charm: Beginner-Heavy Teams Are Associated With High Scientific Disruption
Teams now drive most scientific advances, yet the impact of absolute beginners -- authors with no prior publications -- remains understudied. Analyzing over 28 million articles published between 1971 and 2020 across disciplines and team sizes, we uncover a universal and previously undocumented pattern: teams with a higher fraction of beginners are systematically more disruptive and innovative. Their contributions are linked to distinct knowledge-integration behaviors, including drawing on broad…

A new wave of climate research is sounding a stark warning:
Human activity may be driving drought more intensely
– and more directly
– than previously understood.
The southwestern United States has been in a historic #megadrought for much of the past two decades,
with its reservoirs including lakes Mead and Powell dipping to record lows
and legal disputes erupting ov…

Climate models reveal how human activity may be locking the Southwest into permanent drought
The drought has been linked to the Pacific Decadal Oscillation, a natural climate pattern. A new study finds global warming is now influencing that natural phenomenon.

Constraints on the early growth of massive black holes from PTA and JWST with L-GalaxiesBH
Silvia Bonoli, David Izquierdo-Villalba, Daniele Spinoso, Monica Colpi, Alberto Sesana, Markos Polkas, Volker Springel
https://arxiv.org/abs/2509.12325

Constraints on the early growth of massive black holes from PTA and JWST with L-GalaxiesBH
Recent Pulsar Timing Arrays (PTAs) results provided strong evidence for a stochastic gravitational wave background (sGWB), consistent with a population of merging massive black holes (MBHs) at $z<1$. Meanwhile, JWST observations at $z>5$ suggest a higher number density of accreting MBHs than previously estimated. Together with constraints from local MBHs and high-$z$ quasars, these findings offer a unique opportunity to test MBH seeding and early growth models. We explore this using ${\tt L-Gal…

Orbital Hybridization-Driven Stabilization and Reactivity on an Asymmetrically Reconstructed Polar CeO2(100) Surface
Songda Li, Chen Zou, Liuxi Chen, Zhong-Kang Han, Wentao Yuan, Hangsheng Yang, David J. Wales, Yong Wang
https://arxiv.org/abs/2509.11568

Orbital Hybridization-Driven Stabilization and Reactivity on an Asymmetrically Reconstructed Polar CeO2(100) Surface
Understanding and controlling the atomic structure of polar oxide surfaces is essential for unraveling surface reactivilty and designing advanced catalytic materials. Among these, the polar CeO2(100) surface is a prototypical and industrially important system in heterogeneous catalysis. However, due to the vast complexity of the surface configurations, its reconstruction behavior remains an open question. Here, we report a previously unidentified asymmetric (1x2) reconstructed structure on the …

How Reinforcement Learning After Next-Token Prediction Facilitates Learning
Nikolaos Tsilivis, Eran Malach, Karen Ullrich, Julia Kempe
https://arxiv.org/abs/2510.11495 https://

How Reinforcement Learning After Next-Token Prediction Facilitates Learning
Recent advances in reasoning domains with neural networks have primarily been enabled by a training recipe that optimizes Large Language Models, previously trained to predict the next-token in a sequence, with reinforcement learning algorithms. We introduce a framework to study the success of this paradigm, and we theoretically expose the optimization mechanisms by which reinforcement learning improves over next-token prediction in this setting. We study learning from mixture distributions of s…

🪭 Previously unknown protein 'folding factories' discovered
#biology

Previously unknown protein 'folding factories' discovered
In order to fulfill their many functions, proteins must be folded into the correct shape. Researchers at the University of Basel have now discovered tiny "folding factories" in cells that enable efficient and accurate protein folding. A lack of these structures can lead to diseases such as diabetes and neurodegenerative disorders.

Recursive relations for the S-matrix of Liouville theory
George Jorjadze, Lado Razmadze, Stefan Theisen
https://arxiv.org/abs/2507.11760 https://

Recursive relations for the S-matrix of Liouville theory
We analyze the relation between the vertex operators of the in and out fields in Liouville theory. This is used to derive equations for the S-matrix, from which a recursive relation for the normal symbol of the S-matrix for discrete center-of-mass momenta is obtained. Its solution is expressed as multiple contour-integrals of a generalized Dotsenko-Fateev type. This agrees with the functional integral representation of the scattering matrix of Liouville theory which we had proposed previously.

Cowboys reportedly offered Micah Parsons over $40 million per year https://www.si.com/nfl/cowboys/news/dallas-cowboys-previously-offered-micah-parsons-over-40m-per-year-massive-guarantee

Automated Testing of Broken Authentication Vulnerabilities in Web APIs with AuthREST
Davide Corradini, Mariano Ceccato, Mohammad Ghafari
https://arxiv.org/abs/2509.10320 https:/…

Automated Testing of Broken Authentication Vulnerabilities in Web APIs with AuthREST
We present AuthREST, an open-source security testing tool targeting broken authentication, one of the most prevalent API security risks in the wild. AuthREST automatically tests web APIs for credential stuffing, password brute forcing, and unchecked token authenticity. Empirical results show that AuthREST is effective in improving web API security. Notably, it uncovered previously unknown authentication vulnerabilitiesin in four public APIs.

JWST's first view of the most vigorously star-forming cloud in the Galactic center -- Sagittarius B2
Nazar Budaiev, Adam Ginsburg, Ashley T. Barnes, Desmond Jeff, Taehwa Yoo, Cara Battersby, Alyssa Bulatek, Xing Lu, Elisabeth A. C. Mills, Daniel L. Walker
https://arxiv.org/abs/2509.11771

JWST's first view of the most vigorously star-forming cloud in the Galactic center -- Sagittarius B2
We report JWST NIRCAM and MIRI observations of Sgr B2, the most active site of star formation in the Galaxy. These observations, using 14 filters spanning 1.5 to 25 microns, have revealed a multilayered and highly structured cloud that contains both a revealed, low-extinction and hidden, high-extinction population of massive stars. JWST has detected new candidate HII regions around massive stars previously missed by radio telescopes. MIRI has detected radiation escaping from the forming massive…

Variational Analysis in Spectral Decomposition Systems
H\`oa T. B\`ui, Minh N. B\`ui, Christian Clason
https://arxiv.org/abs/2510.11433 https://arxiv.org/p…

Variational Analysis in Spectral Decomposition Systems
This work is concerned with variational analysis of so-called spectral functions and spectral sets of matrices that only depend on eigenvalues of the matrix. Based on our previous work [H. T. Bùi, M. N. Bùi, and C. Clason, Convex analysis in spectral decomposition systems, arXiv 2503.14981] on convex analysis of such functions, we consider the question in the abstract framework of spectral decomposition systems, which covers a wide range of previously studied settings, including eigenvalue de…

Testing 1-2-3. Testing 1-2-3.
You grab that iso. New release, KDE 6.4.5 on an immutable Gentoo. Interesting! No wifi enabled ootb? What? 2014? Yes, I know I can. I even know how. But I won't.
2nd one. Reinstall previously used. All well, until i add 3 regular applications. Desktop files (/usr/share/applications) are installed, but don't link to the correct applications at all.Yes, I know I can. I even know how. But I won't.
QA is a lost art and the rise of alph…

Proving symmetry of localized solutions and application to dihedral patterns in the planar Swift-Hohenberg PDE
Dominic Blanco, Matthieu Cadiot
https://arxiv.org/abs/2509.10375 h…

Proving symmetry of localized solutions and application to dihedral patterns in the planar Swift-Hohenberg PDE
In this article, we extend the framework developed previously to allow for rigorous proofs of existence of smooth, localized solutions in semi-linear partial differential equations possessing both space and non-space group symmetries. We demonstrate our approach on the Swift-Hohenberg model. In particular, for a given symmetry group $\mathcal{G}$, we construct a natural Hilbert space $H^l_{\mathcal{G}}$ containing only functions with $\mathcal{G}$-symmetry. In this space, products and different…

Additional JWST/NIRSpec Transits of the Rocky M Dwarf Exoplanet GJ 1132 b Reveal a Featureless Spectrum
Katherine A. Bennett, Ryan J. MacDonald, Sarah Peacock, Junellie Perez, E. M. May, Sarah E. Moran, Lili Alderson, Jacob Lustig-Yaeger, Hannah R. Wakeford, David K. Sing, Kevin B. Stevenson, Natasha E. Batalha, Mercedes L\'opez-Morales, Munazza K. Alam, Joshua D. Lothringer, Guangwei Fu, James Kirk, Jeff A. Valenti, L. C. Mayorga, Kristin S. Sotzen

Additional JWST/NIRSpec Transits of the Rocky M Dwarf Exoplanet GJ 1132 b Reveal a Featureless Spectrum
As an archetypal M-dwarf rocky exoplanet, GJ 1132 b has a varied history of atmospheric measurements. At 1.13 $\rm R_{\oplus}$, 1.66 $\rm M_{\oplus}$, and 580 K, it orbits a bright, slowly rotating M dwarf in a 1.6-day period, making it a prime target for characterization. In this study, we combine two JWST NIRSpec/G395H transits previously reported by May and MacDonald et al. 2023 with two new NIRSpec/G395M transits to constrain the presence of an atmosphere. This marks the first time the G395…

🛰️ The Milky Way could be teeming with more satellite galaxies than previously thought
https://phys.org/news/2025-07-milky-teeming-satellite-galaxies-previously.html

The Milky Way could be teeming with more satellite galaxies than previously thought
The Milky Way could have many more satellite galaxies than scientists have previously been able to predict or observe, according to new research. Cosmologists at Durham University used a new technique combining the highest-resolution supercomputer simulations that exist, alongside novel mathematical modeling, to predict the existence of missing "orphan" galaxies.

Multi-GeV Fermi-LAT Detection of PSR B1259-63
D. Malyshev, M. Chernyakova, A. Finn Gallagher, A. Kuzin, N. Matchett, A. Santangelo, Iu. Shebalkova, B. van Soelen
https://arxiv.org/abs/2509.10037

Multi-GeV Fermi-LAT Detection of PSR B1259-63
PSR B1259-63 is a classical gamma-ray binary detected from radio to TeV energies near periastron. In the GeV band, it had previously been detected only up to a few GeV, with the extrapolation of the TeV spectrum overestimating the measured GeV flux. Using over 17 years of Fermi-LAT observations, we report the first detection of PSR B1259-63 in the 10 GeV to $\gtrsim 100$ GeV range, from -400 to +100 days relative to periastron. The Fermi-LAT spectrum is well described by a hard power law with i…

Scattering in the dual regime of Yang-Baxter deformed O(2N) sigma models
Alexey Bychkov, Boris Nekrasov
https://arxiv.org/abs/2510.11429 https://arxiv.org/…

Scattering in the dual regime of Yang-Baxter deformed O(2N) sigma models
We continue to explore the previously suggested dual regime of Yang-Baxter (YB) deformed $\mathrm{O}(2N)$ sigma models, which is a new one-parametric deformation of the $\mathrm{O}(2N)$ model. It can be obtained from the conventional YB deformed $\mathrm{O}(2N+2)$ sigma model by freezing two isometries. The scattering matrix in the non-deformed $\mathrm{O}(n)$ model is known coincide with the rational $\mathfrak{so}_n$-invariant $R-$matrix. For $n = 2N$ this rational solution allows for two tri…

U.S. District Judge Tanya Chutkan,
who previously presided over Trump’s federal election interference case,
will now oversee a new lawsuit from Democracy Forward Foundation,
a D.C.-based nonprofit,
requesting the Department of Justice and the FBI release any communications between Trump officials on the Epstein matter,
any communication between Trump and Epstein himself,
and Epstein’s so-called client list that Attorney General Pam Bondi previously acknowl…

Judge Detested by Trump Will Oversee Epstein Files Case
Welcome back, Judge Tanya Chutkan.

🫓 Ultra-flat optic pushes beyond what was previously thought possible
#optics

Ultra-flat optic pushes beyond what was previously thought possible
Cameras are everywhere. For over two centuries, these devices have grown increasingly popular and proven to be so useful, they have become an indispensable part of modern life.

Eruptive mass loss less than a year before the explosion of superluminous supernovae. II. A systematic search for pre-explosion eruptions with VLT/X-shooter
A. Gkini, C. Fransson, R. Lunnan, S. Schulze, J. Sollerman K. Tsalapatas, N. Sarin, M. Nicholl, C. Angus, U. Burgaz, S. J. Brennan, T. -W. Chen, A. Gal-Yam, A. Gangopadhyay, Y. Hu, M. M. Kasliwal, R. R. Laher, P. J. Pessi, B. Rusholme, E. Russeil, A. Singh, C. Skoglund, R. Smith, B. van Baal, S. L. West, L. Yan

Eruptive mass loss less than a year before the explosion of superluminous supernovae. II. A systematic search for pre-explosion eruptions with VLT/X-shooter
We present X-shooter observations of a sample of 21 hydrogen-poor superluminous supernovae (SLSNe-I), spanning a redshift range of z=0.13-0.95, aimed at searching for shells of circumstellar material (CSM). Specifically, we focus on identifying broad Mg II absorption features that are blueshifted by several thousand kilometers per second and have previously been interpreted as arising from resonance line scattering of the SLSN continuum by rapidly expanding CSM ejected shortly before explosion.…

🍳 Scientists discover how heat 'awakens' carbon food source for deep Earth biosphere
#geology

Scientists discover how heat 'awakens' carbon food source for deep Earth biosphere
Deep beneath the ocean's surface lies Earth's largest carbon reservoir: marine sediments that have accumulated organic matter over millions of years. Long assumed to be permanently "locked away," this vast carbon pool is far more dynamic than scientists previously believed, according to a new international study.

Trump nominates chief economist at rightwing Heritage Foundation
to lead Bureau of Labor Statistics
The nomination comes after Trump fired the BLS commissioner
Erika McEntarfer earlier this month
after the release of a weak jobs report.
Antoni has previously voiced concerns about revisions to the jobs data at BLS.
“There are better ways to collect, process, and disseminate data
– that is the task for the next BLS commissioner,
and only consiste…

Arecibo Wow! II: Revised Properties of the Wow! Signal from Archival Ohio SETI Data
Abel M\'endez, Kevin N. Ortiz Ceballos, Jorge I. Zuluaga, Kelby D. Palencia-Torres, Allison J. Smith, Alondra Cardona Rodr\'iguez, H\'ector Socas-Navarro, David Kipping, Hodari-Sadiki Hubbard-James, Mai Le, Alejandro Rinc\'on-Torres
https://…

Arecibo Wow! II: Revised Properties of the Wow! Signal from Archival Ohio SETI Data
The Wow! Signal, detected in 1977 by the Ohio State University SETI project, remains one of the most intriguing unexplained radio transients. The most recent significant revision of its properties took place in the late 1990s; however, further advances were limited by readily available data from this event. Here we retrieved and analyzed decades of previously unpublished Ohio SETI observations, enabling the most comprehensive re-evaluation of the properties of the Wow! Signal to date with moder…

Sources: Microsoft's US data center crunch will last through H1 2026, longer than previously outlined, as the company restricts new Azure cloud subscriptions (Brody Ford/Bloomberg)
https://www.bloomberg.com/news/articles/20

Signature of the explosion mechanism of Type-Ia SNe in substructures of the remnant: the case of Tycho's SNR
Soham Mandal, N\'uria Torres-Alb\`a, Carles Badenes, Shazrene Mohamed
https://arxiv.org/abs/2508.10752

Signature of the explosion mechanism of Type-Ia SNe in substructures of the remnant: the case of Tycho's SNR
Type-Ia supernovae (SNe), or runaway thermonuclear explosions of white dwarfs (WDs), play a critical role in the chemical evolution of galaxies, and are important cosmological distance indicators due to their 'standardizable' lightcurves. Growing evidence, however, suggests greater diversity in their observed lightcurves (and spectra) than thought previously. This is usually attributed to a variety of WD explosion mechanisms and progenitor system properties, but a direct link between the explos…

🧋 Study: There is less room to store carbon dioxide, driver of climate change, than previously thought
#co2

Study: There is less room to store carbon dioxide, driver of climate change, than previously thought
The world has far fewer places to securely store carbon dioxide deep underground than previously thought, steeply lowering its potential to help stem global warming, according to a new study that challenges long-held industry claims about the practice.