Tootfinder

#musiknase … chillen und arbeiten!
https://music.apple.com/de/album/tracks-ii-the-lost-albums/1804688733

Observations of Successive CMEs and their Successive Type II Solar Radio Bursts in the Corona
V. Vasanth
https://arxiv.org/abs/2508.19179 https://arxiv.org…

Observations of Successive CMEs and their Successive Type II Solar Radio Bursts in the Corona
This paper reports the observations of two coronal shocks from two Coronal Mass Ejections (CMEs) for the Successive type II Solar radio bursts observed on 02 May 2021 in the frequency range of 80 - 1 MHz with the time interval of ~ 20 minutes between them. Both the bursts show clear band splitting features in the harmonic band. The estimated heights for the source of the first type II burst lies in the range of 2.06 - 2.93 R0 with the average speeds of 601 + or - 76, 700 + or - 91 a…

Vivani subsidiary Cortigent (which took over the visual prosthesis technology of Second Sight Medical Products) claims that "Argus II has been discontinued due to the small population of patients with RP" https://www.cortigent.com/argus-ii after 350 blind people had received the Argus II retinal …

Scaling solutions for current-carrying cosmic string networks. II. Biased solutions
F. C. N. Q. Pimenta, C. J. A. P. Martins
https://arxiv.org/abs/2506.21494

Scaling solutions for current-carrying cosmic string networks. II. Biased solutions
The charge-velocity-dependent one-scale model is an extension of the canonical velocity-dependent one-scale model which explicitly incorporates additional degrees of freedom on the string worldsheet, such as arbitrary currents and charges, expected in physically realistic models. A previous paper [Pimenta and Martins, Phys. Rev. D 110, 023540 (2024)] started an in-depth classification of its possible asymptotic scaling solutions, with the goal of identifying distinguishing features which may be…

'DATEX II' may sound cryptic, but it is the European standard for the exchange of static and real-time traffic-related data. From next year, all public EV charging point operators will be required to provide data in this format. Germany is now ready for this.
https://

Last week, we continued our #ISE2025 lecture on distributional semantics with the introduction of neural language models (NLMs) and compared them to traditional statistical n-gram models.
Benefits of NLMs:
- Capturing Long-Range Dependencies
- Computational and Statistical Tractability
- Improved Generalisation
- Higher Accuracy
@…

Quasar cosmology II: joint analyses with Cosmic Microwave Background
M. Benetti, G. Bargiacchi, G. Risaliti, S. Capozziello, E. Lusso, M. Signorini
https://arxiv.org/abs/2506.21477

Quasar cosmology II: joint analyses with Cosmic Microwave Background
Currently, the increasing availability of accurate cosmological probes leads to the emergence of tensions between data on the one hand and between theoretical predictions and direct observations on the other. Moreover, after 25 years since the discovery of the accelerated expansion of the Universe has elected the $Λ$CDM model as the reference model, resolving shortcomings of the standard cosmological model seems to be an unpostponed priority. Hence, it is key to test alternative models and inv…

Nambu Non-equilibrium Thermodynamics II:Reduction of a complex system to a simple one
So Katagiri, Yoshiki Matsuoka, Akio Sugamoto
https://arxiv.org/abs/2508.19455 https://

Nambu Non-equilibrium Thermodynamics II:Reduction of a complex system to a simple one
Non-equilibrium thermodynamics far from equilibrium is investigated in terms of a generalized ``Nambu dynamics'' (termed Nambu non-equilibrium thermodynamics (NNET)); NNET consists of Nambu dynamics with multiple Hamiltonians and an entropy causing dissipation. It is shown that a general complex non-linear non-equilibrium system far from equilibrium can be reduced to a simple NNET, on the basis of an existence proposition of NNET. This proposition is, however, proved only formally, so that th…

JD Vance flunks the basics on World War II as the White House targets history museums (Steve Benen/MSNBC)
https://www.msnbc.com/rachel-maddow-show/maddowblog/jd-vance-flunks-basics-world-war-ii-white-house-targets-history-museum-rcna226952
http://www.memeorandum.com/250825/p67#a250825p67

A Formalization of Elementary Linear Algebra: Part II
David Russinoff
https://arxiv.org/abs/2507.19007 https://arxiv.org/pdf/2507.19007

A Formalization of Elementary Linear Algebra: Part II
This is the second installment of an exposition of an ACL2 formalization of elementary linear algebra. It extends the results of Part I, which covers the algebra of matrices over a commutative ring, but focuses on aspects of the theory that apply only to matrices over a field: elementary row reduction and its application to the computation of matrix inverses and the solution of simultaneous systems of linear equations.

Optimal solutions employing an algebraic Variational Multiscale approach Part II: Application to Navier-Stokes
Suyash Shrestha, Marc Gerritsma, Gonzalo Rubio, Steven Hulshoff, Esteban Ferrer
https://arxiv.org/abs/2506.21395

Optimal solutions employing an algebraic Variational Multiscale approach Part II: Application to Navier-Stokes
This work presents a nonlinear extension of the high-order discretisation framework based on the Variational Multiscale (VMS) method previously introduced for steady linear problems. Building on the concept of an optimal projector defined via the symmetric part of the governing operator, we generalise the formulation to treat the 2D incompressible Navier-Stokes equations. The arroach maintains a clear separation between the resolved and unresolved scales, with the fine-scale contributions appro…

Adaptive Command: Real-Time Policy Adjustment via Language Models in StarCraft II
Weiyu Ma, Dongyu Xu, Shu Lin, Haifeng Zhang, Jun Wang
https://arxiv.org/abs/2508.16580 https://…

Adaptive Command: Real-Time Policy Adjustment via Language Models in StarCraft II
We present Adaptive Command, a novel framework integrating large language models (LLMs) with behavior trees for real-time strategic decision-making in StarCraft II. Our system focuses on enhancing human-AI collaboration in complex, dynamic environments through natural language interactions. The framework comprises: (1) an LLM-based strategic advisor, (2) a behavior tree for action execution, and (3) a natural language interface with speech capabilities. User studies demonstrate significant impr…

Automorphism groups of measures on the Cantor space. Part II: Abstract homogeneous measures
Piotr Niemiec
https://arxiv.org/abs/2506.20797 https://

Automorphism groups of measures on the Cantor space. Part II: Abstract homogeneous measures
The main aim of the paper is to introduce a new class of (semigroup-valued) measures that are ultrahomogeneous on the Boolean algebra of all clopen subsets of the Cantor space and to study their automorphism groups. A characterisation, in terms of the so-called trinary spectrum of a measure, of ultrahomogeneous measures such that the action of their automorphism groups is (topologically) transitive or minimal is given. Also sufficient and necessary conditions for the existence of a dense (or co…

Exoplanet Ephemerides Change Observations (ExoEcho). II. Transit timing variation analysis of Brown Dwarfs around Solar-type Stars
Wenqin Wang, Xinyue Ma, Zhangliang Chen, Cong Yu, Shangfei Liu, Bo Ma
https://arxiv.org/abs/2505.21270

Exoplanet Ephemerides Change Observations (ExoEcho). II. Transit timing variation analysis of Brown Dwarfs around Solar-type Stars
Transit timing variation (TTV) is a useful tool for studying the orbital properties of transiting objects. However, few TTV studies have been done on transiting brown dwarfs (BDs) around solar-type stars. Here we study the long-term TTV of a population of close BD companions around solar-type stars using TESS data. We use the measured orbital period change rate to constrain the tidal interaction strength between the host star and the BD companion and put limits on the destruction timescale of t…

High Dimensional Beam Inference II: Inference of a Perturbed HERA Beam from Simulated Visibility Data
Michael J. Wilensky, Philip Bull, Nicolas Fagnoni
https://arxiv.org/abs/2506.20712

High Dimensional Beam Inference II: Inference of a Perturbed HERA Beam from Simulated Visibility Data
Accurate beam modeling is important in many radio astronomy applications. In this paper, we focus on beam modeling for 21-cm intensity mapping experiments using radio interferometers, though the techniques also apply to single dish experiments with small modifications. In 21-cm intensity mapping, beam models are usually determined from highly detailed electromagnetic simulations of the receiver system. However, these simulations are expensive, and therefore have limited ability to describe prac…

Tracers of the ionization fraction in dense and translucent molecular gas: II. Using mm observations to constrain ionization fraction across Orion B
Ivana Be\v{s}li\'c, Maryvonne Gerin, Viviana V. Guzm\'an, Emeric Bron, Evelyne Roueff, Javier R. Goicoechea, J\'er\^ome Pety, Franck Le Petit, Simon Coud\'e, Lucas Einig, Helena Mazurek, Jan H. Orkisz, Pierre Palud, Miriam G. Santa-Maria, L\'eontine S\'egal, Antoine Zakardjian, S\'ebastien Bardeau, Pierre Chaina…

Tracers of the ionization fraction in dense and translucent molecular gas: II. Using mm observations to constrain ionization fraction across Orion B
The ionization fraction ($f_\mathrm{e}=n_\mathrm{e}/n_\mathrm{H}$) is a crucial parameter of interstellar gas, yet estimating it requires deep knowledge of molecular gas chemistry and observations of specific lines, such as those from isotopologs like HCO$^+$ and N$_2$H$^+$, which are detectable only in dense cores. Previous challenges in constraining $f_\mathrm{e}$ over large areas stemmed from the limitations of observational tracers and chemical models. Recent models have identified molecula…

Critical long-range percolation II: Low effective dimension
Tom Hutchcroft
https://arxiv.org/abs/2508.18808 https://arxiv.org/pdf/2508.18808

Critical long-range percolation II: Low effective dimension
In long-range percolation on $\mathbb{Z}^d$, points $x$ and $y$ are connected by an edge with probability $1-\exp(-β\|x-y\|^{-d-α})$, where $α>0$ is fixed and $β\geq 0$ is a parameter. As $d$ and $α$ vary, the model is conjectured to exhibit eight qualitatively different second-order critical behaviours, with a transition between mean-field and low-dimensional regimes when $d=\min\{6,3α\}$, a transition between long- and short-range regimes at a crossover value $α_c(d)$, and wi…

🇺🇦 #NowPlaying on BBCRadio3's #ThroughTheNight
Johann Strauss II, Karl Haffner, Richard Genée, Magdalena Lucjan, WDR Symphony Orchestra Cologne & Manfred Honeck:
🎵 Spiel' ich die Unschuld vom Lande, Adele's Couplet from 'Die Fledermaus'
https://open.spotify.com/track/7oAuFIwn5IjCNskxs7Gm6h

El “paciente Chile” II: ¿Oasis?
Columna de Diana Aurenque.
https://wallabag.altgr.xyz/share/68ab5c14e060d3.15827071
Link original 🔗

Mowing in 3 acts today as a survival mechanism because it's brutally hot & humid and will remain so... 🔍:eyes_squint: until after the sun has set. My lawnmower does not have headlights, so there is no relief to be found.
I survived acts I & II, forming a working theory that the only thing preventing me from spontaneously combusting is the oppressive humidity. It's perfectly counterbalanced suffering but lifesaving. Keeping me alive to suffer? 🤔
Act III still to c…

Fascinating
https://www.jalopnik.com/1944442/ford-bomber-factory-history/

Ford Once Made A Mile-Long Factory To Build Bombers Faster Than Anyone Thought Possible - Jalopnik
Cars and airplanes may not seem a natural mix, but during World War II Ford built a huge factory to make bombers. In the process, it spawned a pop-culture icon.

I rarely leave my neighborhood these days, so when the opportunity came last weekend to visit a town about 80 km from my home, I took a little detour to visit and take photos of the town’s only national historical marker.
(Those who have been following me long enough know that documenting historical markers in #Wikidata and

Landing at Nasugbu historical marker
NHI historical marker for the landing of the American forces at Nasugbu during World War II

Broncos' Patrick Surtain II: Bo Nix 'going to make a lot of noise' in 2025 https://www.nfl.com/news/broncos-patrick-surtain-ii-bo-nix-going-to-make-a-lot-of-noise-in-2025

"In objektiver Hinsicht erfüllt die israelische Kriegsführung den Tatbestand des Genozids i.S.v. Art. II der Genozidkonvention (bzw. Art. 6 des Römischen Statuts des Internationalen Strafgerichtshofs und § 6 VStGB). "
#Israel
#Gaza

JWST Observations of SN 2024ggi I: Interpretation and Model Comparison of the Type II Supernova 2024ggi at 55 days Past Explosion
E. Baron, C. Ashall, J. M. DerKacy, P. Hoeflich, K. Medler, M. Shahbandeh, E. Fereidouni, C. M. Pfeffer, T. Mera, W. B. Hoogendam, S. Shiber, K. Auchettl, P. J. Brown, C. R. Burns, A. Burrow, D. . A. Coulter, M. Engesser, G. Folatelli, O. Fox, L. Galbany, M. Guolo, J. T. Hinkle, Mark E. Huber, E. Y. Hsiao, T. de Jaeger, D. O. Jones, S. Kumar, J. Lu, P. A. Ma…

JWST Observations of SN 2024ggi I: Interpretation and Model Comparison of the Type II Supernova 2024ggi at 55 days Past Explosion
We present panchromatic 0.4-21 microns observations of the nearby (~7.2 Mpc) Type II supernova 2024ggi, obtained during the plateau phase at ~55 d past explosion. Our dataset includes JWST spectra spanning 1.7-14 microns, MIR imaging at 7.7 and 21 microns, and near-simultaneous ground-based optical and NIR spectra covering 0.32-1.8 microns. The NIR and MIR spectral features of SN 2024ggi are dominated by HI emission. We present line IDs and a toy PHOENIX/1D model that reproduces the observation…

Watching The Atomic Cafe to remind myself of the 1950s we seem to be heading back to. If you are not old enough to remember the 1950s, you might want to watch this collection of shorts from the end of World War II and the beginning of the Cold War. Includes the classic “Duck and Cover”. https://www.justwatch.com/us/movie/the-atomic-cafe

Low-Luminosity Type IIP Supernovae from the Zwicky Transient Facility Census of the Local Universe. II: Lightcurve Analysis
Kaustav K. Das, Mansi M. Kasliwal, Jesper Sollerman, Christoffer Fremling, Takashi J. Moriya, K-Ryan Hinds, Daniel A. Perley, Eric C. Bellm, Tracy X. Chen, Evan P. O'Connor, Michael W. Coughlin, W. V. Jacobson-Galan, Anjasha Gangopadhyay, Matthew Graham, S. R. Kulkarni, Josiah Purdum, Nikhil Sarin, Steve Schulze, Avinash Singh, Daichi Tsuna, Avery Wold

Low-Luminosity Type IIP Supernovae from the Zwicky Transient Facility Census of the Local Universe. II: Lightcurve Analysis
The Zwicky Transient Facility Census of the Local Universe survey yielded a sample of 330 Type IIP supernovae (SNe) with well-constrained peak luminosities. In paper I (arXiv:2502.19493), we measured their luminosity function and volumetric rate. Here (paper II), we present the largest systematic study of lightcurve properties for Type IIP SNe from a volume-limited survey, analyzing a selected subset of 129 events, including 16 low-luminosity Type IIP (LLIIP) SNe with M${r,peak} \geq -16$ mag. …

Composition and Alignment of Diffusion Models using Constrained Learning
Shervin Khalafi, Ignacio Hounie, Dongsheng Ding, Alejandro Ribeiro
https://arxiv.org/abs/2508.19104 http…

Composition and Alignment of Diffusion Models using Constrained Learning
Diffusion models have become prevalent in generative modeling due to their ability to sample from complex distributions. To improve the quality of generated samples and their compliance with user requirements, two commonly used methods are: (i) Alignment, which involves fine-tuning a diffusion model to align it with a reward; and (ii) Composition, which combines several pre-trained diffusion models, each emphasizing a desirable attribute in the generated outputs. However, trade-offs often arise…

Fixed-Point Traps and Identity Emergence in Educational Feedback Systems
Faruk Alpay
https://arxiv.org/abs/2505.21038 https://arxiv.o…

Fixed-Point Traps and Identity Emergence in Educational Feedback Systems
This paper presents a formal categorical proof that exam-driven educational systems obstruct identity emergence and block creative convergence. Using the framework of Alpay Algebra II and III, we define Exam-Grade Collapse Systems (EGCS) as functorial constructs where learning dynamics $φ$ are recursively collapsed by evaluative morphisms $E$. We prove that under such collapse regimes, no nontrivial fixed-point algebra $μ_φ$ can exist, hence learner identity cannot stabilize. This creates a …

Notes on the uniqueness of Type II Yamabe metrics
Shota Hamanaka, Pak Tung Ho
https://arxiv.org/abs/2506.17876 https://arxiv.org/pdf/…

Notes on the uniqueness of Type II Yamabe metrics
In this paper, we study the uniqueness of type II Yamabe metrics in conformal classes on a compact connected manifold with boundary, and we investigate Obata-type theorems for type II Yamabe metrics. In particular, we establish a theorem which gives a sufficient condition for a metric to be the unique Type II Yamabe metric in its conformal class. We also prove the corresponding theorem for the CR Yamabe problem on closed manifolds.

#warthunder

BAe Harrier II (UK versions) - Technical data and discussion
The source attempting to be posted is NOT cleared for public use and is very clearly marked “DISTRUBITION STATEMENT C” its front cover. No source material that is restricted, export restricted or classified will ever be tolerated, handled or used in any way on any of our platforms. This is a direct breach of our rules: Source Material: Restrictions on Classified and Export Restricted information (“Military Restrictions”)

Diophantine approximation with sums of two squares II
Stephan Baier, Habibur Rahaman
https://arxiv.org/abs/2508.18044 https://arxiv.org/pdf/2508.18044

Diophantine approximation with sums of two squares II
Recently, we showed that for every irrational number $α$, there exist infinitely many positive integers $n$ represented by any given positive definite binary quadratic form $Q$, satisfying $||αn||0$. We also provided a quantitative version with a lower bound when the exponent $1/2-\varepsilon$ is replaced by weaker exponent $γ<3/7-\varepsilon$. In this article we recover this quantitative version wi…

Heute vor 68 Jahren: Am 28. Juli 1957 warf ein #USAF C-124-Flugzeug von der Dover Air Force Base über dem Atlantik zwei Bomben ab, als es einen Leistungsverlust erlitt. Die Bomben, die keine nuklearen Komponenten enthielten, wurden nie geborgen.

Theory of the Anderson transition in three-dimensional chiral symmetry classes: Connection to type-II superconductors
Pengwei Zhao, Ryuichi Shindou
https://arxiv.org/abs/2506.21050

Theory of the Anderson transition in three-dimensional chiral symmetry classes: Connection to type-II superconductors
Phase transitions governed by topological defects constitute a cornerstone of modern physics. Two-dimensional (2D) Anderson transitions in chiral symmetry classes are driven by the proliferation of vortex-antivortex pairs -- a mechanism analogous to the Berezinskii-Kosterlitz-Thouless (BKT) transition in the 2D XY model. In this work, we extend this paradigm to three-dimensional (3D) chiral symmetry classes, where vortex loops emerge as the key topological defects governing the Anderson transit…

PurpCode: Reasoning for Safer Code Generation
Jiawei Liu, Nirav Diwan, Zhe Wang, Haoyu Zhai, Xiaona Zhou, Kiet A. Nguyen, Tianjiao Yu, Muntasir Wahed, Yinlin Deng, Hadjer Benkraouda, Yuxiang Wei, Lingming Zhang, Ismini Lourentzou, Gang Wang
https://arxiv.org/abs/2507.19060

PurpCode: Reasoning for Safer Code Generation
We introduce PurpCode, the first post-training recipe for training safe code reasoning models towards generating secure code and defending against malicious cyberactivities. PurpCode trains a reasoning model in two stages: (i) Rule Learning, which explicitly teaches the model to reference cybersafety rules to generate vulnerability-free code and to avoid facilitating malicious cyberactivities; and (ii) Reinforcement Learning, which optimizes model safety and preserves model utility through dive…

Urban Diaspora II 🌐
城市放逐 II 🌐
📷 Nikon FE
🎞️Ilford FP4 Plus, expired 1994
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

Raising and lowering maps for tridiagonal pairs
Paul Terwilliger
https://arxiv.org/abs/2507.19400 https://arxiv.org/pdf/2507.19400

Raising and lowering maps for tridiagonal pairs
Let $V$ denote a nonzero finite-dimensional vector space. A tridiagonal pair on $V$ is an ordered pair $A, A^*$ of maps in ${\rm End}(V)$ such that (i) each of $A, A^*$ is diagonalizable; (ii) there exists an ordering $\lbrace V_i \rbrace_{i=0}^d$ of the eigenspaces of $A$ such that $A^* V_i \subseteq V_{i-1} + V_i + V_{i+1}$ $(0 \leq i \leq d)$, where $V_{-1} =0$ and $V_{d+1}=0$; (iii) there exists an ordering $\lbrace V^*_i \rbrace_{i=0}^δ$ of the eigenspaces of $A^*$ such that $A V^*_i \sub…

The table top for the new Apple II table is finished. Just curing for a week or so. Still need to build the frame. This one will be simpler than the last. Just a basic mortise and tenon with an extra set of supports about six inches down on the sides and back.
#woodworking

"by April of 2024 Gaza had already suffered more than 70,000 tonnes of bombing. To put that in perspective, that is more than the combined bomb tonnage dropped on Dresden, Hamburg, and London in World War II. Now more than a year later, that bombing has only increased. It is no surprise, therefore, that UN Humanitarian Chief Martin Griffiths declared Gaza “uninhabitable” due to the bombing, destruction, blockades, and subsequent famines"

NYT Whitewashes Genocide, Again
In an OpEd, Columnist Bret Stephens takes a sledgehammer to truth & humanity to justify a live streamed genocide—we rebuke his propaganda in full

🇺🇦 #NowPlaying on #BBC6Music's #Glastonbury
Maribou State:
🎵 II Remember
#MaribouState
https://mariboustate.bandcamp.com/track/ii-remember
https://open.spotify.com/track/7kQlovp6BedLpzgnQ0fBkA

One Equation to Rule Them All -- Part II: Direct Data-Driven Reduction and Regulation
Junyu Mao, Emyr Williams, Thulasi Mylvaganam, Giordano Scarciotti
https://arxiv.org/abs/2508.17251

One Equation to Rule Them All -- Part II: Direct Data-Driven Reduction and Regulation
The Sylvester equation underpins a wide spectrum of control synthesis and systems analysis tools associated with cascade interconnections. In the preceding Part I [1] of this article, it was shown that such an equation can be reformulated using data, enabling the production of a collection of data-driven stabilisation procedures. In this second part of the article, we continue to develop the framework established in Part I to solve two important control-theoretic problems: model order reduction…

The Geometry of Constrained Optimization: Constrained Gradient Flows via Reparameterization: A-Stable Implicit Schemes, KKT from Stationarity, and Geometry-Respecting Algorithms
Valentin Leplat
https://arxiv.org/abs/2508.18764

The Geometry of Constrained Optimization: Constrained Gradient Flows via Reparameterization: A-Stable Implicit Schemes, KKT from Stationarity, and Geometry-Respecting Algorithms
Gradient-flow (GF) viewpoints unify and illuminate optimization algorithms. Yet most GF analyses focus on unconstrained settings. We develop a geometry-respecting framework for constrained problems by (i) reparameterizing feasible sets with maps whose Jacobians vanish on the boundary (orthant/box) or are rank \(n{-}1\) (simplex), (ii) deriving flows in the parameter space which induce feasible primal dynamics, (iii) discretizing with A-stable implicit schemes solvable by robust inner loops (Mod…

A Family of Sequences Generalizing the Thue Morse and Rudin Shapiro Sequences
Russell Jay Hendel
https://arxiv.org/abs/2505.20547 https://

A Family of Sequences Generalizing the Thue Morse and Rudin Shapiro Sequences
For $m \ge 1,$ let $P_m =1^m,$ the binary string of $m$ ones. Further define the infinite sequence $s_m$ by $s_{m,n} = 1$ iff the number of (possibly overlapping) occurrences of $P_m$ in the binary representation of $n$ is odd, $n \ge 0.$ For $m=1,2$ respectively $s_m$ is the Thue-Morse and Rudin-Shapiro sequences. This paper shows: (i) $s_m$ is automatic; (ii) the minimal, DFA (deterministic finite automata) accepting $s_m$ has $2m$ states; (iii) it suffices to use prefixes of length $2^{m-1}$…

An Experimental Framework to Study Turbulence Induced Particle Mobilization
Vaishak Thiruvenkitam, Robert H Bryan II, Zheng Zhang, Ebenezer P Gnanamanickam
https://arxiv.org/abs/2508.18557

An Experimental Framework to Study Turbulence Induced Particle Mobilization
An experimental framework was developed to study the initiation of particle mobilization in a laboratory setting. Large and heavy particles mobilized by a turbulent, gaseous carrier-phase were considered. An airfoil oscillated in the free-stream, generating a tonal free-stream disturbance that perturbed a turbulent boundary layer. The flow developing behind this forced flow was characterized using hot-wire anemometry and particle image velocimetry (PIV). Downstream of the oscillating airfoil me…

🇺🇦 #NowPlaying on KEXP's #MechanicalBreakdown
Helena Hauff:
🎵 Sworn to Secrecy Part II
#HelenaHauff
https://helenahauff.bandcamp.com/track/sworn-to-secrecy-part-ii
https://open.spotify.com/track/1vnm5K1joDjpN674ooHvmV

Raiders Land Former First-Round CB in Preseason Trade Proposal https://heavy.com/sports/nfl/las-vegas-raiders/preseason-trade-proposal-greg-newsome-ii/?adt_ei=[email]

Changing disc compositions via internal photoevaporation II: M dwarf systems
Julia Lena Lienert, Bertram Bitsch, Thomas Henning
https://arxiv.org/abs/2505.21470

Changing disc compositions via internal photoevaporation II: M dwarf systems
The chemical evolution of the inner regions of protoplanetary discs is a complex process. Several factors influence it, one being the inward drift and evaporation of volatile-rich pebbles. During the disc's evolution, its inner part is first enriched with evaporating water-ice, resulting in a low C/O ratio. Afterwards, C-rich gas from the outer disc is transported inwards. Consequently, the C/O ratio of the inner disc increases again after 2 Myr. Previously, we studied how internal photoevapora…

Dog Tag of Fallen WW II Soldier is Returned to Family 80 Years After His Death https://www.goodnewsnetwork.org/dog-tag-of-fallen-ww-ii-soldier-returned-to-family-80-years-after-his-death/

Dog Tag of Fallen WW II Soldier is Returned to Family 80 Years After His Death
The dog tag ID belonging to a fallen World War II soldier from Philadephia has been returned to his family 80 years after his death.

Wiener Hopf Analysis of Transient Mode-I/Mode-II Fracture in Rotating Heterogeneous Magnetoelastic Orthotropic Media under Initial Stresses
Diksha, Soniya Chaudhary, Pawan Kumar Sharma
https://arxiv.org/abs/2508.15870

Wiener Hopf Analysis of Transient Mode-I/Mode-II Fracture in Rotating Heterogeneous Magnetoelastic Orthotropic Media under Initial Stresses
This study investigates the fracture behavior under both opening (Mode I) and in-plane sliding (Mode II) conditions for a semi-infinite crack in a rotating, spatially graded magnetoelastic orthotropic strip with combined horizontal and vertical initial normal stresses. The strip is assumed infinite in extent, with the crack aligned along its longitudinal axis and parallel to the rotation axis. The governing field equations are reduced to an analytically tractable form by employing the Fourier t…

This https://arxiv.org/abs/2502.17906 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qfi…

Why do financial prices exhibit Brownian motion despite predictable order flow?
In financial market microstructure, there are two enigmatic empirical laws: (i) the market-order flow has predictable persistence due to metaorder splitters by institutional investors, well formulated as the Lillo-Mike-Farmer model. However, this phenomenon seems paradoxical given the diffusive and unpredictable price dynamics; (ii) the price impact $I(Q)$ of a large metaorder $Q$ follows the square-root law, $I(Q)\propto \sqrt{Q}$. Here we theoretically reveal why price dynamics follows Browni…

This https://arxiv.org/abs/2410.22275 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Piecewise geodesic Jordan curves II: Loewner energy, projective structures, and accessory parameters
In this paper we consider Jordan curves on the Riemann sphere passing through $n \ge 3$ given points. We show that in each relative isotopy class of such curves, there exists a unique curve that minimizes the Loewner energy. These curves have the property that each arc between two consecutive points is a hyperbolic geodesic in the domain bounded by the other arcs. This geodesic property lets us define a complex projective structure whose holonomy lies in $\mathrm{PSL}(2,\mathbb{R})$. We show th…

genetic_multiplex: Multiplex genetic interactions (2014)
Multiplex networks representing different types of genetic interactions, for different organisms. Layers represent (i) physical, (ii) association, (iii) co-localization, (iv) direct, and (v) suppressive, (vi) additive or synthetic genetic interaction. Edge direction (i,j) indicates gene i interacting with gene j.
This network has 325 nodes and 322 edges.
Tags: Biological, Gene regulation, Protein interactions, Unweigh…

🇺🇦 #NowPlaying on BBCRadio3's #ThroughTheNight
Johann Strauss II, Karl Haffner, Richard Genée, Magdalena Lucjan, WDR Symphony Orchestra Cologne & Manfred Honeck:
🎵 Mein Herr Marquis, Adele's Song from 'Die Fledermaus'
https://open.spotify.com/track/2ydPbkhHlUQDJStXEGyBZT

Search for $e^ e^- \to \gamma\chi_{bJ}$ ($J$ = 0, 1, 2) near $\sqrt{s} = 10.746$ GeV at Belle II
Collaboration, Abumusabh, Adachi, Aggarwal, Ahmed, Ahn, Aihara, Akopov, Alghamdi, Alhakami, Aloisio, Althubiti, Amos, Ky, Asner, Atmacan, Aushev, Aushev, Ayad, Babu, Bae, Baghel, Bahinipati, Bambade, Banerjee, Barrett, Bartl, Baudot, Baur, Beaubien, Becherer, Becker, Bennett, Bernlochner, Bertacchi, Bertemes, Bertholet, Bessner, Bettarini, Bhardwaj, Bhuyan, Bianchi, Bilka, Biswas, Bobrov, …

Search for $e^+ e^- \to γχ_{bJ}$ ($J$ = 0, 1, 2) near $\sqrt{s} = 10.746$ GeV at Belle II
We search for the $e^+ e^- \to γχ_{bJ}$ ($J$ = 0, 1, 2) processes at center-of-mass energies $\sqrt{s}$ = 10.653, 10.701, 10.746, and 10.804 GeV. These data were collected with the Belle II detector at the SuperKEKB collider and correspond to 3.5, 1.6, 9.8, and 4.7 fb$^{-1}$ of integrated luminosity, respectively. We set upper limits at the 90\% confidence level on the Born cross sections for $e^+ e^- \to γχ_{bJ}$ at each center-of-mass energy $\sqrt{s}$ near 10.746 GeV. The upper limits at…

Is there any evidence that a brain implant for restoring vision will give more functional vision than a noninvasive sensory substitution device?
Grok's answer: https://x.com/i/grok/share/qqXguBGin6FDIab7ra6pwdtm2 "No, there is no evidence"
ChatGPT's an…

Is there any evidence that a brain implant for restoring vision will give more functional vision than a noninvasive sensory substitution device? Don't speculate. https://www.youtube.com/playlist?list=PLmrvukzbS44SMVxMLRpd-_iTpy_Cj5liB
No, there is no evidence from current studies or comparisons that brain implants for vision restoration provide more functional vision than noninvasive sensory substitution devices. Available direct comparisons, such as those examining retinal or cortical implants (e.g., Argus II) against devices like The vOICe, indicate the opposite: noninvasive options demonstrate broader functional outcomes in tasks like object recognition, grasping, and navigation, with better resolution, field of view, and…

Normal forms for ordinary differential operators, II
Junhu Guo, A. B. Zheglov
https://arxiv.org/abs/2506.19799 https://arxiv.org/pdf/…

Normal forms for ordinary differential operators, II
In this paper, which is a follow-up of our first paper "Normal forms for ordinary differential operators, I", we extend the explicit parametrisation of torsion free rank one sheaves on projective irreducible curves with vanishing cohomology groups obtained earlier to analogous parametrisation of torsion free sheaves of arbitrary rank with vanishing cohomology groups on projective irreducible curves. As an illustration of our theorem we calculate one explicit example of such parametrisation, n…

Assessing an evolutionary search engine for small language models, prompts, and evaluation metrics
Cl\'audio L\'ucio do Val Lopes, Lucca Machado
https://arxiv.org/abs/2506.21512

Assessing an evolutionary search engine for small language models, prompts, and evaluation metrics
The concurrent optimization of language models and instructional prompts presents a significant challenge for deploying efficient and effective AI systems, particularly when balancing performance against computational costs like token usage. This paper introduces and assesses a bi-objective evolutionary search engine designed to navigate this complex space, focusing specifically on Small Language Models (SLMs). We employ the NSGA-II algorithm and prompt grammar to simultaneously optimize for ta…

This https://arxiv.org/abs/2107.07544 has been replaced.
link: https://scholar.google.com/scholar?q=a

On Boundaries of $\varepsilon$-neighbourhoods of Planar Sets, Part II: Global Structure and Curvature
We study the global topological structure and smoothness of the boundaries of $\varepsilon$-neighbourhoods $E_\varepsilon = \{x \in \mathbb{R}^2 \, : \, \textrm{dist}(x, E) \leq \varepsilon \}$ of planar sets $E \subset \mathbb{R}^2$. We show that for a compact set $E$ and $\varepsilon > 0$ the boundary $\partial E_\varepsilon$ can be expressed as a disjoint union of an at most countably infinite union of Jordan curves and a possibly uncountable, totally disconnected set of singularities. We al…

Balmer Decrement and IRX Break in Tracing Dust Attenuation at Scales of Individual Star-forming Regions in NGC 628
Man Qiao, Mingfeng Liu, Zongfei Lyu, Shuang Liu, Chao Yang, Dong Dong Shi, Fangxia An, Zhizheng Pan, Wenhao Liu, Binyang Liu, Run Wen, Yu Heng Zhang, Xian Zhong Zheng
https://arxiv.org/abs/2506.21026

Balmer Decrement and IRX Break in Tracing Dust Attenuation at Scales of Individual Star-forming Regions in NGC 628
We investigate the relationships between infrared excess (IRX=$L_{\rm IR}/L_{\rm UV}$) and Balmer decrement (${\rm H}α/{\rm H}β$) as indicators of dust attenuation for 609 ${\rm {H\,{\small II}}}$ regions at scales of $\sim 50-200$ pc in NGC 628, utilizing data from AstroSat, James Webb Space Telescope (JWST) and Multi Unit Spectroscopic Explorer (MUSE). Our findings indicate that about three fifths of the sample ${\rm {H\,{\small II}}}$ regions reside within the regime occupied by local star…

VLT observations of interstellar comet 3I/ATLAS II. From quiescence to glow: Dramatic rise of Ni I emission and incipient CN outgassing at large heliocentric distances
Rohan Rahatgaonkar, Juan Pablo Carvajal, Thomas H. Puzia, Baltasar Luco, Emmanuel Jehin, Damien Hutsem\'ekers, Cyrielle Opitom, Jean Manfroid, Micha\"el Marsset, Bin Yang, Laura Buchanan, Wesley C. Fraser, John Forbes, Michele Bannister, Dennis Bodewits, Bryce T. Bolin, Matthew Belyakov, Matthew M. Knight, Colin…

VLT observations of interstellar comet 3I/ATLAS II. From quiescence to glow: Dramatic rise of Ni I emission and incipient CN outgassing at large heliocentric distances
We report VLT spectroscopy of the interstellar comet 3I/ATLAS (C/2025 N1) from $r_{\rm h}\!\simeq\!4.4$ to $2.85$ au using X-shooter (300-550 nm, $R\!\simeq\!3000$) and UVES (optical, $R\!\simeq\!35k-80k$). The coma is dust-dominated with a fairly constant red optical continuum slope ($\sim$21-22\%/1000Å). At $r_{\rm h}\!\simeq\!3.17$ au we derive $3σ$ limits of $Q({\rm OH})<7.76\times10^{23}\ {\rm s^{-1}}$, but find no indications for [O I], C$_2$, C$_3$ or NH$_2$. We report detection of CN …

Values at non-positive integers of partially twisted multiple zeta-functions II
Driss Essouabri, Kohji Matsumoto, Simon Rutard
https://arxiv.org/abs/2506.20150

Values at non-positive integers of partially twisted multiple zeta-functions II
We study the values at non-positive integer points of multi-variable twisted multiple zeta-functions, whose each factor of the denominator is given by polynomials. The fully twisted case was already answered by de Crisenoy. On the partially twisted case, in one of our former article we studied the case when each factor of the denominator is given by linear forms or power-sum forms. In the present paper we treat the case of general polynomial denominators, and obtain explicit forms of the values…

🇺🇦 #NowPlaying on BBCRadio3's #LateJunction
NCW:
🎵 Quiano ii
#NCW

Does Calibration Affect Human Actions?
Meir Nizri, Amos Azaria, Chirag Gupta, Noam Hazon
https://arxiv.org/abs/2508.18317 https://arxiv.org/pdf/2508.18317

Does Calibration Affect Human Actions?
Calibration has been proposed as a way to enhance the reliability and adoption of machine learning classifiers. We study a particular aspect of this proposal: how does calibrating a classification model affect the decisions made by non-expert humans consuming the model's predictions? We perform a Human-Computer-Interaction (HCI) experiment to ascertain the effect of calibration on (i) trust in the model, and (ii) the correlation between decisions and predictions. We also propose further correct…

Distributions of wide binary stars in theory and in Gaia data: II. Reconstruction of sample probability density of true orbit sizes
Valeri V. Makarov
https://arxiv.org/abs/2507.19273

Distributions of wide binary stars in theory and in Gaia data: II. Reconstruction of sample probability density of true orbit sizes
Wide binary stars are important for testing alternative models of gravitation in the weak-field regime and understanding the statistical outcomes of dynamical interactions in the general Galactic field. The Gaia mission's collection of weakly bound pairs of stars offers a unique opportunity to estimate the rate of survivors at separations above 7 KAU, where non-Newtonian components of gravitation may become important. The available Gaia-based catalogs of resolved binaries provide the projected …

Heute vor 27 Jahren: Am 28. Mai 1998 führte #Pakistan die ersten öffentlichen #Atomtests, Chagai-I, in Balochistan als Antwort auf Indiens Pokhran-II durch. Die Tests lösten UN-Sanktionen aus und machten Pakistan zum siebten Land mit nachgewiesenen

🇺🇦 #NowPlaying on #BBC6Music's #NickGrimshaw
The Sabres of Paradise:
🎵 Smokebelch II (Beatless Mix)
#TheSabresofParadise
https://subterraneandiscography.bandcamp.com/track/the-sabres-of-paradise-smokebelch-ii
https://open.spotify.com/track/5Z8BtdkhEzHbb8QlYODMgM

Low-metallicity massive single stars with rotation. III. Source of ionization and C-IV emission in I Zw 18
Dorottya Sz\'ecsi, Frank Tramper, Brankica Kub\'atov\'a, Carolina Kehrig, Ji\v{r}\'i Kub\'at, Ji\v{r}\'i Krti\v{c}ka, Andreas A. C. Sander, Miriam Garcia
https://arxiv.org/abs/2506.21442

Low-metallicity massive single stars with rotation. III. Source of ionization and C-IV emission in I Zw 18
Chemically-homogeneously evolving stars have been proposed to account for several exotic phenomena, including gravitational-wave emissions and gamma-ray bursts. Here we study whether these stars can explain the metal-poor dwarf galaxy, I Zwicky 18. We apply our synthetic spectral models from Paper II to (i) establish a classification sequence for these hot stars, (ii) predict the photonionizing flux and the strength of emission lines from a IZw18-like stellar population, and (iii) compare our p…

General-domain FC-based shock-dynamics solver II: Non-smooth domains, accuracy and parallel performance
Daniel V. Leibovici, Oscar P. Bruno
https://arxiv.org/abs/2506.19370

General-domain FC-based shock-dynamics solver II: Non-smooth domains, accuracy and parallel performance
This contribution Part II of a two-part series, extends the general-domain FC-SDNN (Fourier Continuation Shock-Detecting Neural Network) introduces in Part I to enable treatment of non-smooth domains, it introduces a parallel implementation of the scheme with high-quality weak and strong scalability properties, and it illustrates the overall methodology for a variety of tests for the 2D Euler equations--including supersonic and hypersonic flows and shocks past obstacles with corners. The result…

JWST Observations of SN 2023ixf I: Completing the Early Multi-Wavelength Picture with Plateau-phase Spectroscopy
J. M. DerKacy, C. Ashall, E. Baron, K. Medler, T. Mera, P. Hoeflich, M. Shahbandeh, C. R. Burns, M. D. Stritzinger, M. A. Tucker, B. J. Shappee, K. Auchettl, C. R. Angus, D. D. Desai, A. Do, J. T. Hinkle, W. B. Hoogendam, M. E. Huber, A. V. Payne, D. O. Jones, J. Shi, M. Y. Kong, S. Romagnoli, A. Syncatto, S. Moran, E. Fereidouni, P. J. Brown, M. Engesser, O. D. Fox, L. Galb…

JWST Observations of SN 2023ixf I: Completing the Early Multi-Wavelength Picture with Plateau-phase Spectroscopy
We present and analyze panchromatic (0.35-14 $μ$m) spectroscopy of the Type II supernova 2023ixf, including near- and mid-infrared spectra obtained 33.6 days after explosion during the plateau-phase, with the James Webb Space Telescope (JWST). This is the first in a series of papers examining the evolution of SN 2023ixf with JWST spanning the initial 1000 days after explosion, monitoring the formation and growth of molecules and dust in ejecta and surrounding environment. The JWST infrared spe…

Qualitative Dynamics of a Discrete Phytoplankton-Zooplankton System with Holling Type II Grazing and Type III Toxin Release
Sobirjon Shoyimardonov
https://arxiv.org/abs/2507.18094

Qualitative Dynamics of a Discrete Phytoplankton-Zooplankton System with Holling Type II Grazing and Type III Toxin Release
We study the dynamics of a discrete phytoplankton-zooplankton model with Holling type~II grazing and Holling type~III toxin release. The existence and stability of positive fixed points are analyzed, and conditions for the occurrence of Neimark--Sacker bifurcation are established. We show how feedback control can suppress complex dynamics near bifurcation. Global stability of the boundary equilibrium is also discussed. Numerical simulations confirm the theoretical findings, illustrating the ric…

Is flavor discrete?
Alexei Y Smirnov
https://arxiv.org/abs/2507.19278 https://arxiv.org/pdf/2507.19278

Is flavor discrete?
Relevance of the discrete symmetries for explanation of the observed flavor structures in the leptonic sector is considered. Achievements of the "traditional'' discrete symmetry and the modular symmetry approaches are confronted. Minimal models with small number of parameters do not work. Complication of symmetry prescriptions allow to introduce new free parameters and thus describe the data but simultaneously bring two connected problems: (i) problem of "missing" representations, and (ii) prob…

Replaced article(s) found for astro-ph.CO. https://arxiv.org/list/astro-ph.CO/new
[1/1]:
- DUCA: Dynamic Universe Cosmological Analysis. II. The impact of clustering dark energy on the hal...
Tiago Castro, Stefano Borgani, Jeppe Dakin, Valerio Marra, Ronaldo Carlotto Batista, Laura Sa…

A Bayesian approach to modelling spectrometer data chromaticity corrected using beam factors -- II. Model priors and posterior odds
Peter H. Sims, Judd D. Bowman, Steven G. Murray, John P. Barrett, Rigel C. Cappallo, Colin J. Lonsdale, Nivedita Mahesh, Raul A. Monsalve, Alan E. E. Rogers, Titu Samson, Akshatha K. Vydula
https://…

A Bayesian approach to modelling spectrometer data chromaticity corrected using beam factors -- II. Model priors and posterior odds
The reliable detection of the global 21-cm signal, a key tracer of Cosmic Dawn and the Epoch of Reionization, requires meticulous data modelling and robust statistical frameworks for model validation and comparison. In Paper I of this series, we presented the Beam-Factor-based Chromaticity Correction (BFCC) model for spectrometer data processed using BFCC to suppress instrumentally induced spectral structure. We demonstrated that the BFCC model, with complexity calibrated by Bayes factor-based …

Globally Stable Discrete Time PID Passivity-based Control of Power Converters: Simulation and Experimental Results
Alessio Moreschini, Wei He, Romeo Ortega, Yiheng Lu, Tao Li
https://arxiv.org/abs/2508.18719

Globally Stable Discrete Time PID Passivity-based Control of Power Converters: Simulation and Experimental Results
The key idea behind PID Passivity-based Control (PID-PBC) is to leverage the passivity property of PIDs (for all positive gains) and wrap the PID controller around a passive output to ensure global stability in closed-loop. However, the practical applicability of PID-PBC is stymied by two key facts: (i) the vast majority of practical implementations of PIDs is carried-out in discrete time -- discretizing the continuous time dynamical system of the PID; (ii) the well-known problem that passivity…

Parabolic Anderson Model in the Hyperbolic Space. Part II: Quenched Asymptotics
Xi Geng, Sheng Wang, Weijun Xu
https://arxiv.org/abs/2506.20147 https://

Parabolic Anderson Model in the Hyperbolic Space. Part II: Quenched Asymptotics
We establish the exact quenched asymptotic growth of the solution to the parabolic Anderson model (PAM) in the hyperbolic space with a regular, stationary, time-independent Gaussian potential. More precisely, we show that with probability one, the solution $u$ to PAM with constant initial data has pointwise growth asymptotics \[ u(t,x)\sim e^{L^{*}t^{5/3}+o(t^{5/3})} \] as $t \rightarrow +\infty$. Both the power $t^{5/3}$ on the exponential and the exact value of $L^*$ are different from their …

Search for the lepton-flavor-violating $\tau^{-} \rightarrow e^{\mp} \ell^{\pm} \ell^{\mp}$ decays at Belle II
Collaboration, Adachi, Aggarwal, Ahmed, Ahn, Aihara, Akopov, Alghamdi, Alhakami, Aloisio, Althubiti, Amos, Angelsmark, Ky, Antonioli, Asner, Atmacan, Aushev, Aversano, Ayad, Babu, Bae, Baghel, Bahinipati, Bambade, Banerjee, Bansal, Barrett, Bartl, Baudot, Baur, Beaubien, Becherer, Becker, Bennett, Bernlochner, Bertacchi, Bertemes, Bertholet, Bessner, Bettarini, Bhardwaj, Bhuya…

Search for the lepton-flavor-violating $τ^{-} \rightarrow e^{\mp} \ell^{\pm} \ell^{\mp}$ decays at Belle II
We present the result of a search for the charged-lepton-flavor violating decays $τ^- \rightarrow e^\mp \ell^\pm \ell^-$, where $\ell$ is a muon or an electron, using a data sample with an integrated luminosity of 428 fb$^{-1}$ recorded by the Belle II experiment at the SuperKEKB $e^+e^-$ collider. The selection of $e^+e^- \toτ^+τ^-$ events containing a signal candidate is based on an inclusive-tagging reconstruction and on a boosted decision tree to suppress background. Upper limits on the …

🇺🇦 #NowPlaying on BBCRadio3's #NightTracks
Johannes Brahms, Daniel Ottensamer, German Symphony Orchestra Berlin & Stephan Koncz:
🎵 Clarinet Sonata in F Minor, Op. 120 No. 1: II. Andante un poco adagio
#JohannesBrahms
https://open.spotify.com/track/1hdnMBbkWuVrx5mkVa97IT

Kinetic pathways of coesite densification from metadynamics
David Vrba, Roman Marto\v{n}\'ak
https://arxiv.org/abs/2508.19716 https://arxiv.org/pdf/250…

Kinetic pathways of coesite densification from metadynamics
We study compression of coesite to pressures above 35 GPa, substantially beyond the equilibrium transition pressure to octahedral phases (8 GPa to stishovite). Experiments at room temperature showed that up to 30 GPa the metastable coesite structure develops only minor displacive changes (coesite-II and coesite-III) while the Si atoms remain 4-coordinated. Beyond 30 GPa, reconstructive transformations start, following different pathways from the complex structure of coesite. Besides amorphizati…

Stratified Hyperbolicity of the moduli stack of stable minimal models, II: Big Picard Theorem and the stratified Brody hyperbolicity
Junchao Shentu
https://arxiv.org/abs/2506.19218

Stratified Hyperbolicity of the moduli stack of stable minimal models, II: Big Picard Theorem and the stratified Brody hyperbolicity
This is the second paper on the global geometry of Birkar's moduli of stable minimal models (e.g., the KSBA moduli stack). We introduces a birationally admissible stratification of the Deligne-Mumford stack of stable minimal models, such that the universal family over each stratum admits a simple normal crossing log birational model. The main result of this paper is to show that for each stratum $S$, the pair $(\overline{S},\partial S)$ satisfies the Big Picard theorem. In particular, we show t…

BiLO: Bilevel Local Operator Learning for PDE Inverse Problems. Part II: Efficient Uncertainty Quantification with Low-Rank Adaptation
Ray Zirui Zhang, Christopher E. Miles, Xiaohui Xie, John S. Lowengrub
https://arxiv.org/abs/2507.17019

BiLO: Bilevel Local Operator Learning for PDE Inverse Problems. Part II: Efficient Uncertainty Quantification with Low-Rank Adaptation
Uncertainty quantification and inverse problems governed by partial differential equations (PDEs) are central to a wide range of scientific and engineering applications. In this second part of a two part series, we extend Bilevel Local Operator Learning (BiLO) for PDE-constrained optimization problems developed in Part 1 to the Bayesian inference framework. At the lower level, we train a network to approximate the local solution operator by minimizing the local operator loss with respect to the…

This https://arxiv.org/abs/2504.10928 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Radiative-transfer models for dusty Type II supernovae
Dust is expected to form on a year timescale in core-collapse supernova (SN) ejecta. Its existence is revealed through an infrared brightening, an optical dimming, or a blue-red emission-line profile asymmetry. To investigate how the dust location and amount impact observations, we computed ultraviolet-to-optical spectra of interacting and standard, noninteracting Type II SNe using state-of-the-art models -- for simplicity we adopted 0.1micron silicate grains. These models account for the full …

🇺🇦 #NowPlaying on BBCRadio3's #EssentialClassics
Arthur Sullivan, William Gilbert, Malcolm Sargent, Pro Arte Orchestra, Elsie Morison, Richard Lewis, Geraint Evans & Marjorie Thomas:
🎵 The Yeomen of the Guard; Act II: When a wooer goes a-wooing
https://open.spotify.com/track/5vR5NDXcxQjuOSrAWEWHRz

MIRIS Pa{\alpha} Galactic Plane Survey. II. The Catalog of Pa{\alpha} Emission-line Sources
Il-Joong Kim, Jeonghyun Pyo, Kwang-Il Seon, Woong-Seob Jeong, Takao Nakagawa, Toshio Matsumoto
https://arxiv.org/abs/2506.20256

MIRIS Paα Galactic Plane Survey. II. The Catalog of Paα Emission-line Sources
Using data from the MIRIS Paα Galactic Plane Survey (MIPAPS), we present a Paα 1.87 um line image of the entire Galactic plane within the latitude range of -3° < b < +3°, revealing numerous Paα features. Based on the MIPAPS Paα image and the WISE H II region catalog, we compile a catalog of 1489 Paα emission-line sources in the Galactic plane within 90° < l < 330°. By comparing our Paα images with Hα images constructed from the IPHAS and VPHAS+ survey data, we demonstrate the advanta…

Can tidal evolution lead to close-in planetary bodies around white dwarfs II: volcanism and transits
Yuqi Li, Amy Bonsor, Oliver Shorttle
https://arxiv.org/abs/2506.20316

Can tidal evolution lead to close-in planetary bodies around white dwarfs II: volcanism and transits
Planetary material accreted by white dwarfs provides unique insights regarding exoplanetary composition. The evolutionary pathways of planetary bodies around white dwarfs are crucial to understanding the presence of close-in planetary material, observed in the form of pollutants in the atmospheres of white dwarfs and planetary material transiting white dwarfs. Periodic transits around white dwarfs potentially reveal the existence of close-in planetary bodies undergoing dust production. Tidal in…

Strong Lens Discoveries in DESI Legacy Imaging Surveys DR10 with Two Deep Learning Architectures
Jose Carlos Inchausti, Christopher J. Storfer, Xiaosheng Huang, Yuan-Ming Hsu, Brandt Kaufmann, Chaitanya Pasupala, S. Banka, A. Dey, D. Lang, A. Meisner, J. Moustakas, A. D. Myers, E. F. Schlafly, D. J. Schlegel
https://arxiv.org/abs/2508.2008…

Strong Lens Discoveries in DESI Legacy Imaging Surveys DR10 with Two Deep Learning Architectures
We have conducted a search for strong gravitational lensing systems in the Dark Energy Spectroscopic Instrument (DESI) Legacy Imaging Surveys Data Release 10 (DR10). This paper is the fourth in a series of searches (following Huang et al. 2020; Huang et al. 2021; Storfer et al. 2024, Paper I, II, & III respectively). This is the first catalog of lens candidates covering nearly the entirety of the extragalactic sky south of declination $δ\approx +32$ deg, all of it observed by the DECam, coveri…

Topology of the Superconducting Heart of Neutron Stars: Effects of Microphysics and Gravitational-Wave Signatures
Mayusree Das (IISc), Armen Sedrakian (UWr, FIAS), Banibrata Mukhopadhyay (IISc)
https://arxiv.org/abs/2508.18363

Topology of the Superconducting Heart of Neutron Stars: Effects of Microphysics and Gravitational-Wave Signatures
We present a general-relativistic study of the distribution of proton superconductivity in strongly magnetized neutron stars (NSs), employing the $XNS$ code to solve the coupled Einstein-Maxwell equations. This work extends the previous investigation by us in a few key directions: (i) we explore equilibrium configurations with both toroidal and poloidal magnetic field geometries, (ii) we account for complex many-body effects incorporating microscopically derived pairing gaps, and (iii) our mode…

An energy-stable parametric finite element method for the Willmore flow in three dimensions
Weizhu Bao, Yifei Li, Dongmin Wang
https://arxiv.org/abs/2506.21025

An energy-stable parametric finite element method for the Willmore flow in three dimensions
This work develops novel energy-stable parametric finite element methods (ES-PFEM) for the Willmore flow and curvature-dependent geometric gradient flows of surfaces in three dimensions. The key to achieving the energy stability lies in the use of two novel geometric identities: (i) a reformulated variational form of the normal velocity field, and (ii) incorporation of the temporal evolution of the mean curvature into the governing equations. These identities enable the derivation of a new vari…

High-Throughput Screening of 2D Photocatalyst Heterostructures with Suppressed Electron-Hole Recombination for Solar Water Splitting
Shivanand Yadav, Jainandan Kumar Modi, Raihan Ahammed, B. S. Bhadoria, Yogesh S. Chauhan, Amit Agarwal, Somnath Bhowmick
https://arxiv.org/abs/2508.17483

High-Throughput Screening of 2D Photocatalyst Heterostructures with Suppressed Electron-Hole Recombination for Solar Water Splitting
Efficient and scalable photocatalysts for solar water splitting remain a critical challenge in renewable energy research. The work presents a high-throughput first-principles discovery of two-dimensional (2D) type-II van der Waals heterostructures (vdWHs) optimized for visible-light-driven photocatalytic water splitting. We screened 482 heterostructures constructed from 60 experimentally realizable 2D monolayers and identified 148 stable type-II vdWHs with spatially separated valence and conduc…

On the incidence of weak and strong Mg II absorbers towards the Flat and Steep Spectrum Radio quasars
Ritish Kumar, Sapna Mishra, Hum Chand
https://arxiv.org/abs/2507.17866 http…

On the incidence of weak and strong Mg II absorbers towards the Flat and Steep Spectrum Radio quasars
The incidence rate of Mg II absorbers per unit redshift path (dN/dz) towards quasar sightlines has been used to probe the interaction between quasar jets and surrounding gas clouds. Studies using core- and lobe-dominated samples found a higher dN/dz for strong Mg II absorbers (rest equivalent width, W_r(2796) >= 1.0 A) in velocity offsets ranging from 5000 km/s < beta * c < 60000 km/s (with beta = v/c), toward core-dominated sources. In this study, we applied a stringent spectral index criterio…

Crosslisted article(s) found for astro-ph.EP. https://arxiv.org/list/astro-ph.EP/new
[1/1]:
- VLT observations of interstellar comet 3I/ATLAS II. From quiescence to glow: Dramatic rise of Ni ...
Rohan Rahatgaonkar, et al.

Detection of Diffuse Radio Emission inside the Supernova Remnant G338.3-0.0 associated with the Gamma-ray Source HESS J1640-465
Moaz Abdelmaguid, Joseph Gelfand, Jason Alford
https://arxiv.org/abs/2508.18999

Detection of Diffuse Radio Emission inside the Supernova Remnant G338.3-0.0 associated with the Gamma-ray Source HESS J1640-465
We report the discovery of diffuse radio emission within SNR G338.3-0.0 using new MeerKAT observations at 816 MHz and 1.4 GHz. The radio emission spatially overlaps with the X-ray pulsar wind nebula (PWN) powered by PSR J1640-4631 and the GeV/TeV gamma-ray source HESS J1640-465. The morphology of this radio emission is centrally peaked and its extent is well-contained within the SNR shell. A lack of mid- and far-infrared counterparts and the absence of catalogued H II regions argues against a t…

HD 44892: The youngest (or oldest?) gas-harbouring debris disc around an intermediate mass star
Karolina M. Szewczyk, Olja Pani\'c, Daniela P. Iglesias, Tim D. Pearce, James M. Miley
https://arxiv.org/abs/2508.19860

HD 44892: The youngest (or oldest?) gas-harbouring debris disc around an intermediate mass star
We present the first detections of gas around a 2.1 Myr old debris disc-bearing intermediate-mass star, HD 44892. Through our analysis we deem the alternative age of 800 Myr unlikely. Gas is detected both in $^{12}$CO (2-1) emission through ALMA Band 6 observations and absorption in Ca II K and H seen with high-resolution UVES spectroscopy. The star exhibits a 12 $μ$m fractional excess of $7.86^{+0.11}_{-2.27}$, placing it in the transition stage between protoplanetary and debris discs, at a l…

Diversity in Hydrogen-rich Envelope Mass of Type II Supernovae. (III). The mass-loss and evolutionary pathways of the red supergiant progenitors
Qiliang Fang, Takashi J. Moriya, Keiichi Maeda, Andris Dorozsmai, Javier Silva-Farf\'an
https://arxiv.org/abs/2507.14665

Diversity in Hydrogen-rich Envelope Mass of Type II Supernovae. (III). The mass-loss and evolutionary pathways of the red supergiant progenitors
We present a comprehensive analysis of 32 type II supernovae (SNe II) with plateau phase photometry and late phase ($nebular$) spectroscopy available, aiming to bridge the gap between the surface and core of their red supergiant (RSG) progenitors. Using \texttt{MESA}\,+\texttt{STELLA}, we compute an extensive grid of SN II light curve models originating from RSG with effective temperatures $T_{\rm eff}$ around 3650\,K and hydrogen-rich envelopes artificially stripped to varying degrees. These m…

JWST Observations of Photo-dissociation Regions. II. Aliphatic/Aromatic Carbonaceous Dust, Ices, and Gas Phase Spectral Line Inventory
K. Misselt, A. N. Witt, K. D. Gordon, D. Van De Putte, B. Trahin, A. Abergel, A. Noriega-Crespo, P. Guillard, M. Zannese, P. Dell'ova, M. Baes, P. Klaassen, N. Ysard
https://arxiv.org/abs/250…

JWST Observations of Photo-dissociation Regions. II. Aliphatic/Aromatic Carbonaceous Dust, Ices, and Gas Phase Spectral Line Inventory
This paper provides an overview of the spectroscopic data obtained by the JWST Guaranteed Time Observations (GTO) program 1192, "The Physics and Chemistry of PDR Fronts", including an inventory of the spatially resolved dust, gas, and molecular content in the Horsehead nebula and the NW filament of NGC~7023. We demonstrate the unique capability of this high spatial resolution data set to elucidate the evolution of gas and dust at the interface between stars and their natal clouds at the scale a…

🇺🇦 #NowPlaying on BBCRadio3's #Breakfast
Samuel Coleridge-Taylor, Anthony Marwood, Martyn Brabbins & BBC Scottish Symphony Orchestra:
🎵 Violin Concerto in G Minor, Op. 80: II. Andante semplice - And
#AnthonyMarwood
https://open.spotify.com/track/1gJYsyaTZHePstv7VqK1Hy

GAMA 526784: the progenitor of a globular cluster-rich ultra-diffuse galaxy? II. Molecular gas, neutral gas and environment
Maria Luisa Buzzo, Anita Zanella, Michael Hilker, Kristine Spekkens, Laura Hunter, Laurella C. Marin
https://arxiv.org/abs/2506.19994

GAMA 526784: the progenitor of a globular cluster-rich ultra-diffuse galaxy? II. Molecular gas, neutral gas and environment
Aims. We investigate the gas reservoirs, star formation (SF) properties, and environment of the ultra-diffuse galaxy GAMA526784 to understand its formation history, the efficiency of molecular gas conversion into stars, and the possible role of an interacting companion in shaping its morphology. Methods. We analyse low and high-resolution CO observations to constrain the molecular gas content, compare with HI data, and examine the SF efficiency of GAMA526784. The potential influence of a newly …

Hybrid Morphology Radio Sources from the MeerKAT Absorption Line Survey (MALS): Radio, Mid-infrared and Environmental Characteristics
Souvik Manik, Shobha Kumari, Netai Bhukta, Sabyasachi Pal, Sushanta K. Mondal
https://arxiv.org/abs/2506.20211

Hybrid Morphology Radio Sources from the MeerKAT Absorption Line Survey (MALS): Radio, Mid-infrared and Environmental Characteristics
Hybrid morphology radio sources (HyMoRSs) are a rare subclass of radio galaxies that display a Fanaroff-Riley type I (FR I) morphology on one side of the central supermassive black hole (SMBH) and a type II (FR II) morphology on the other. These unique sources provide valuable insights into the physical mechanisms behind the FR dichotomy. In this study, we report the discovery of thirty-six new HyMoRSs, marking the largest collection of such sources in the southern sky to date, using data obtai…

Compact Ionized Gas Region Surrounded by Porous Neutral Gas in a Dusty Lyman Break Galaxy at Redshift $z=8.312$
Masato Hagimoto, Yoichi Tamura, Akio K. Inoue, Hideki Umehata, Tom J. L. C. Bakx, Takuya Hashimoto, Ken Mawatari, Yuma Sugahara, Yoshinobu Fudamoto, Yuichi Harikane, Hiroshi Matsuo, Akio Taniguchi
https://arxiv.org/abs…

Compact Ionized Gas Region Surrounded by Porous Neutral Gas in a Dusty Lyman Break Galaxy at Redshift $z=8.312$
Porous interstellar medium (ISM) structure in galaxies at the epoch of reionization (EoR) gives us a hint to understand what types of galaxies contribute to reionization. Although recent studies have pointed out the positive correlation between high ionizing photon escape fractions and high [O III] $88~μ\mathrm{m}$-to-[C II] $158~μ\mathrm{m}$ ratios found in UV-luminous star-forming galaxies at $z > 6$ with ALMA, previous studies have paid little attention to the neutral gas porosity that all…