Tootfinder

Raiders Mailbag: Is the offense beginning to take shape? https://www.raiders.com/news/mailbag/raiders-mailbag-is-the-offense-beginning-to-take-shape-nfl-2025-otas-offseason

Task demands shape network interactions during reading and visual form processing https://direct.mit.edu/imag/article/doi/10.1162/IMAG.a.13/130699/Task-demands-shape-network-interactions-during (fusiform gyrus) &…

This https://arxiv.org/abs/2504.09748 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Level-set topology optimisation with unfitted finite elements and automatic shape differentiation
In this paper we develop automatic shape differentiation techniques for unfitted discretisations and link these to recent advances in shape calculus for unfitted methods. We extend existing analytic shape calculus results to the case where the domain boundary intersects with the boundary of the background domain. We further show that we can recover these analytic derivatives to machine precision regardless of the mesh size using the developed automatic shape differentiation techniques, drastica…

The Supreme Court issued a wave of opinions last week, wrapping a 2024-25 term filled with major victories for Donald Trump’s agenda.
Amid high-profile decisions on nationwide injunctions, LGBTQ books, trans health care, and more,
the court made the unusual choice to delay a ruling on
"Louisiana v. Callais":
-- a redistricting case that could alter the future of voting rights across the country.
The court order did not explain the justices’ rationale…

The Supreme Court Delayed a Ruling That Could Shape Voting Rights Across the US
The court’s choice to punt a key redistricting case signals trouble for the future of the Voting Rights Act.

Trump uses Propecia for hair loss...
"His genitals shrank and changed shape" - National Zero
https://nationalzero.com/2025/06/02/his-genitals-shrank-and-changed-shape/

A General Approach to the Shape Transition of Run-and-Tumble Particles: The 1D PDMP Framework for Invariant Measure Regularity
Leo Hahn
https://arxiv.org/abs/2506.02274

A General Approach to the Shape Transition of Run-and-Tumble Particles: The 1D PDMP Framework for Invariant Measure Regularity
Run-and-tumble particles (RTPs) have emerged as a paradigmatic example for studying nonequilibrium phenomena in statistical mechanics. The invariant measure of a wide class of RTPs subjected to a potential possesses a density, which is continuous when tumble rates are high and discontinuous when they are low. This key feature is known as shape transition. By comparison with the Boltzmann distribution characteristic of thermodynamic equilibrium, this constitutes a qualitative indicator of the re…

This https://arxiv.org/abs/2409.13825 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csAI_…

A personalized time-resolved 3D mesh generative model for unveiling normal heart dynamics
Understanding the structure and motion of the heart is crucial for diagnosing and managing cardiovascular diseases, the leading cause of global death. There is wide variation in cardiac shape and motion patterns, influenced by demographic, anthropometric and disease factors. Unravelling normal patterns of shape and motion, and understanding how each individual deviates from the norm, would facilitate accurate diagnosis and personalised treatment strategies. To this end, we developed a condition…

"GenAI art has already reached polyester status, and this is just the beginning. Despite all the techno-utopian promises, our brains see it as ersatz."
(Original title: GenAI is Our Polyester)
https://culture.ghost.io/genai-is-our-polyester/

GenAI is Our Polyester
The best way to understand generative AI art and aesthetics is to consider how previous "synthetics" lost value in the long-run For the first half of the 20th century, white-collar workers wore business shirts made from cotton or linen that wrinkled in the wash. Ironing them into a presentable shape

This https://arxiv.org/abs/2502.02636 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Bounds on Velocity-Dependent Dark Matter-Baryon Scattering from Large-Scale Structure
We explore interacting dark matter (DM) models that allow DM and baryons to scatter off of each other with a cross section that scales with relative particle velocity. Using the effective field theory of large-scale structure, we perform the first analysis of BOSS full-shape galaxy clustering data for velocity-dependent DM-baryon interactions. We determine that while the addition of BOSS full-shape data visibly modifies the shape of the posterior distribution, it does not significantly alter th…

6 ways Trump's tax bill could shape the battle for control of Congress (Washington Post)
https://www.washingtonpost.com/politics/2025/07/04/big-beautiful-bill-republicans-midterms-democrats/
http://www.memeorandum.com/250704/p5#a250704p5

Imitation and Heterogeneity Shape the Resilience of Community Currency Networks
Camilla Ancona, Dora Ricci, Carmela Bernardo, Francesco Lo Iudice, Anton Proskurnikov, Francesco Vasca
https://arxiv.org/abs/2507.02678

Imitation and Heterogeneity Shape the Resilience of Community Currency Networks
Community currency networks are made up of individuals and or companies that share some physical or social characteristics and engage in economic transactions using a virtual currency. This paper investigates the structural and dynamic properties of such mutual credit systems through a case study of Sardex, a community currency initiated and mainly operating in Sardinia, Italy. The transaction network is modeled as a directed weighted graph and analyzed through a graph theoretic framework focus…

Renormalization group flows in area-metric gravity
Johanna Borissova, Bianca Dittrich, Astrid Eichhorn, Marc Schiffer
https://arxiv.org/abs/2507.02034 http…

Renormalization group flows in area-metric gravity
We put forward the first analysis of renormalization group flows in an area-metric theory, motivated by spin-foam quantum gravity. Area-metric gravity contains the well-known length-metric degrees of freedom of standard gravity as well as additional shape-mismatching degrees of freedom. To be phenomenologically viable, the shape-mismatching degrees of freedom have to decouple under the renormalization group flow towards lower scales. We test this scenario by calculating the renormalization grou…

On the shape of the typical Poisson-Voronoi cell in high dimensions
Matthias Irlbeck, Zakhar Kabluchko, Tobias M\"uller
https://arxiv.org/abs/2506.02607

On the shape of the typical Poisson-Voronoi cell in high dimensions
We study the typical cell of the Poisson-Voronoi tessellation. We show that when divided by the $d$-th root of the intensity parameter $λ$ of the Poisson process times the volume of the unit ball, the inradius, outradius, diameter and mean width of the typical cell converge in probability to the constants $1/2, 1, 2, 2$ respectively, as the dimension $d\to\infty$. We also show that the width of the typical cell, when rescaled in the same way, is bounded between $2\sqrt{5}/(2+\sqrt{5})-o_d(1)$ …

How urban scaling and resource distribution shape social welfare and migration dynamics
Bryce Morsky
https://arxiv.org/abs/2506.03384 https://

How urban scaling and resource distribution shape social welfare and migration dynamics
Many outputs of cities scale in universal ways, including infrastructure, crime, and economic activity. Through a mathematical model, this study investigates the interplay between such scaling laws in human organization and governmental allocations of resources, focusing on impacts to migration patterns and social welfare. We find that if superlinear scaling resources of cities -- such as economic and social activity -- are the primary drivers of city dwellers' utility, then cities tend to conv…

This is how important tax incentives are and why countries that only reactively shape their tax systems will keep lagging behind.
https://qz.com/tech-layoffs-tax-code-trump-section-174-microsoft-meta-1851783502

The hidden time bomb in the tax code that's fueling mass tech layoffs
A decades-old tax rule helped build America's tech economy. A quiet change under Trump helped dismantle it

Shape Shifting Light Dark Matter Solitons
Dor Ben-Amotz
https://arxiv.org/abs/2506.01282 https://arxiv.org/pdf/2506.01282

Shape Shifting Light Dark Matter Solitons
Dark matter consisting of a Bose-Einstein-Condensate (BEC) of ultra-light particles is predicted to have a soliton shape that shifts with the dark matter mass fraction in galaxies with a centrally localized stellar mass (such as a black hole). In the self-gravitating dark matter limit, the predicted cored soliton shape is consistent with previous numerical predictions and analytical approximations. As the dark matter mass fraction decreases, the soliton is predicted to become increasingly cusp …

Box Pose and Shape Estimation and Domain Adaptation for Large-Scale Warehouse Automation
Xihang Yu, Rajat Talak, Jingnan Shi, Ulrich Viereck, Igor Gilitschenski, Luca Carlone
https://arxiv.org/abs/2507.00984

Box Pose and Shape Estimation and Domain Adaptation for Large-Scale Warehouse Automation
Modern warehouse automation systems rely on fleets of intelligent robots that generate vast amounts of data -- most of which remains unannotated. This paper develops a self-supervised domain adaptation pipeline that leverages real-world, unlabeled data to improve perception models without requiring manual annotations. Our work focuses specifically on estimating the pose and shape of boxes and presents a correct-and-certify pipeline for self-supervised box pose and shape estimation. We extensive…

This https://arxiv.org/abs/2505.20431 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csGR_…

ART-DECO: Arbitrary Text Guidance for 3D Detailizer Construction
We introduce a 3D detailizer, a neural model which can instantaneously (in <1s) transform a coarse 3D shape proxy into a high-quality asset with detailed geometry and texture as guided by an input text prompt. Our model is trained using the text prompt, which defines the shape class and characterizes the appearance and fine-grained style of the generated details. The coarse 3D proxy, which can be easily varied and adjusted (e.g., via user editing), provides structure control over the final shap…

Shape derivative approach to fractional overdetermined problems
Sidy M. Djitte, Ignace A. Minlend
https://arxiv.org/abs/2506.00268 https://

Shape derivative approach to fractional overdetermined problems
We use shape derivative approach to prove that balls are the only convex and $C^{1,1}$ regular domains in which the fractional overdetermined problem \begin{equation*} \left\{\begin{aligned} \Ds u&= λ_{s, p} u^{p-1}\quad\text{in}\quad\Om \\ u &= 0\quad \text{in}\quad\R^N\setminus \Om\\ u/d^s&=C_0\quad\text{on\;\; $\partialØ$} \end{aligned} \right. \end{equation*} admits a nontrivial solution for $p\in [1, 2]$ and where $λ_{s, p}= λ_{s, p}(Ø)$ is the best constant in the family of Subcritic…

Midveins regulate the shape formation of drying leaves
Kexin Guo, Yafei Zhang, Massimo Paradiso, Yuchen Long, K. Jimmy Hsia, Mingchao Liu
https://arxiv.org/abs/2507.01813

Midveins regulate the shape formation of drying leaves
Dried leaves in nature often exhibit curled and crumpled morphologies, typically attributed to internal strain gradients that produce dome-like shapes. However, the origin of these strain gradients remains poorly understood. Although leaf veins--particularly the midvein--have been suggested to influence shape formation, their mechanical role has not been systematically investigated. Here, we demonstrate that mechanical constraints imposed by the midvein play a crucial role in generating the div…

Long; central Massachusetts colonial history
Today on a whim I visited a site in Massachusetts marked as "Huguenot Fort Ruins" on OpenStreetMaps. I drove out with my 4-year-old through increasingly rural central Massachusetts forests & fields to end up on a narrow street near the top of a hill beside a small field. The neighboring houses had huge lawns, some with tractors.
Appropriately for this day and this moment in history, the history of the site turns out to be a microcosm of America. Across the field beyond a cross-shaped stone memorial stood an info board with a few diagrams and some text. The text of the main sign (including typos/misspellings) read:
"""
Town Is Formed
Early in the 1680's, interest began to generate to develop a town in the area west of Natick in the south central part of the Commonwealth that would be suitable for a settlement. A Mr. Hugh Campbell, a Scotch merchant of Boston petitioned the court for land for a colony. At about the same time, Joseph Dudley and William Stoughton also were desirous of obtaining land for a settlement. A claim was made for all lands west of the Blackstone River to the southern land of Massachusetts to a point northerly of the Springfield Road then running southwesterly until it joined the southern line of Massachusetts.
Associated with Dudley and Stoughton was Robert Thompson of London, England, Dr. Daniel Cox and John Blackwell, both of London and Thomas Freak of Hannington, Wiltshire, as proprietors. A stipulation in the acquisition of this land being that within four years thirty families and an orthodox minister settle in the area. An extension of this stipulation was granted at the end of the four years when no group large enough seemed to be willing to take up the opportunity.
In 1686, Robert Thompson met Gabriel Bernor and learned that he was seeking an area where his countrymen, who had fled their native France because of the Edict of Nantes, were desirous of a place to live. Their main concern was to settle in a place that would allow them freedom of worship. New Oxford, as it was the so-named, at that time included the larger part of Charlton, one-fourth of Auburn, one-fifth of Dudley and several square miles of the northeast portion of Southbridge as well as the easterly ares now known as Webster.
Joseph Dudley's assessment that the area was capable of a good settlement probably was based on the idea of the meadows already established along with the plains, ponds, brooks and rivers. Meadows were a necessity as they provided hay for animal feed and other uses by the settlers. The French River tributary books and streams provided a good source for fishing and hunting. There were open areas on the plains as customarily in November of each year, the Indians burnt over areas to keep them free of underwood and brush. It appeared then that this area was ready for settling.
The first seventy-five years of the settling of the Town of Oxford originally known as Manchaug, embraced three different cultures. The Indians were known to be here about 1656 when the Missionary, John Eliott and his partner Daniel Gookin visited in the praying towns. Thirty years later, in 1686, the Huguenots walked here from Boston under the guidance of their leader Isaac Bertrand DuTuffeau. The Huguenot's that arrived were not peasants, but were acknowledged to be the best Agriculturist, Wine Growers, Merchant's, and Manufacter's in France. There were 30 families consisting of 52 people. At the time of their first departure (10 years), due to Indian insurrection, there were 80 people in the group, and near their Meetinghouse/Church was a Cemetery that held 20 bodies. In 1699, 8 to 10 familie's made a second attempt to re-settle, failing after only four years, with the village being completely abandoned in 1704.
The English colonist made their way here in 1713 and established what has become a permanent settlement.
"""
All that was left of the fort was a crumbling stone wall that would have been the base of a higher wooden wall according to a picture of a model (I didn't think to get a shot of that myself). Only trees and brush remain where the multi-story main wooden building was.
This story has so many echoes in the present:
- The rich colonialists from Boston & London agree to settle the land, buying/taking land "rights" from the colonial British court that claimed jurisdiction without actually having control of the land. Whether the sponsors ever actually visited the land themselves I don't know. They surely profited somehow, whether from selling on the land rights later or collecting taxes/rent or whatever, by they needed poor laborers to actually do the work of developing the land (& driving out the original inhabitants, who had no say in the machinations of the Boston court).
- The land deal was on condition that there capital-holders who stood to profit would find settlers to actually do the work of colonizing. The British crown wanted more territory to be controlled in practice not just in theory, but they weren't going to be the ones to do the hard work.
- The capital-holders actually failed to find enough poor suckers to do their dirty work for 4 years, until the Huguenots, fleeing religious persecution in France, were desperate enough to accept their terms.
- Of course, the land was only so ripe for settlement because of careful tending over centuries by the natives who were eventually driven off, and whose land management practices are abandoned today. Given the mention of praying towns (& dates), this was after King Phillip's war, which resulted in at least some forced resettlement of native tribes around the area, but the descendants of those "Indians" mentioned in this sign are still around. For example, this is the site of one local band of Nipmuck, whose namesake lake is about 5 miles south of the fort site: #LandBack.

Penalizing Transparency? How AI Disclosure and Author Demographics Shape Human and AI Judgments About Writing
Inyoung Cheong, Alicia Guo, Mina Lee, Zhehui Liao, Kowe Kadoma, Dongyoung Go, Joseph Chee Chang, Peter Henderson, Mor Naaman, Amy X. Zhang
https://arxiv.org/abs/2507.01418

Penalizing Transparency? How AI Disclosure and Author Demographics Shape Human and AI Judgments About Writing
As AI integrates in various types of human writing, calls for transparency around AI assistance are growing. However, if transparency operates on uneven ground and certain identity groups bear a heavier cost for being honest, then the burden of openness becomes asymmetrical. This study investigates how AI disclosure statement affects perceptions of writing quality, and whether these effects vary by the author's race and gender. Through a large-scale controlled experiment, both human raters (n =…

We shape our X and then our X shape us.
vs
Our X shape us and then we shape our X.
(Where X ∊ { biases, beliefs, connections, data, emotions, environments, experiences, fears, languages, music, nature, networks, time, tools... })

This https://arxiv.org/abs/2502.16888 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_sta…

Functional BART with Shape Priors: A Bayesian Tree Approach to Constrained Functional Regression
Motivated by the remarkable success of Bayesian additive regression trees (BART) in regression modelling, we propose a novel nonparametric Bayesian method, termed Functional BART (FBART), tailored specifically for function-on-scalar regression. FBART leverages spline-based representations for functional responses coupled with a flexible tree-based partitioning structure, effectively capturing complex and heterogeneous relationships between response curves and scalar predictors. To facilitate ef…

Shape and ionization of equatorial matter near compact objects from X-ray polarization reflection signatures
J. Podgorn\'y
https://arxiv.org/abs/2506.01798

Shape and ionization of equatorial matter near compact objects from X-ray polarization reflection signatures
Motivated by the success of the IXPE mission, we elucidate what can be inferred about 3D matter structures forming around the equatorial plane of accreting compact objects from 0.1-100 keV linear polarization induced by non-relativistic large-scale reflection. We construct a model of an optically thick elevated axially symmetric reflecting medium with arbitrary ionization profile, representing the known diverse scattering environments: from thick winds and super-Eddington funnel structures form…

Bill Clinton: Not Reading That Book, Biden Was In Good Shape | Crooks and Liars
https://crooksandliars.com/2025/06/bill-clinton-not-reading-book-biden-was

Semisimple algebras related to immaculate tableaux
John M. Campbell
https://arxiv.org/abs/2507.02539 https://arxiv.org/pdf/2507.02539…

Semisimple algebras related to immaculate tableaux
Given a direct sum $A$ of full matrix algebras, if there is a combinatorial interpretation associated with both the dimension of $A$ and the dimensions of the irreducible $A$-modules, then this can be thought of as providing an analogue of the famous Frobenius-Young identity $n! = \sum_{λ\vdash n} ( f^λ )^{2}$ derived from the semisimple structure of the symmetric group algebra $\mathbb{C}S_{n}$, letting $f^λ$ denote the number of Young tableaux of partition shape $λ\vdash n$. By letting $g…

Search for the chiral magnetic effect through beam energy dependence of charge separation using event shape selection
The STAR Collaboration
https://arxiv.org/abs/2506.00278

Search for the chiral magnetic effect through beam energy dependence of charge separation using event shape selection
High-energy, heavy-ion collisions can create local domains of chirality-imbalanced quarks, reflecting the topological features of quantum chromodynamics. The chiral magnetic effect (CME) predicts an electric charge separation of quarks in such topological domains along the magnetic field ($\vec{B}$) generated by the passing of two high-$Z$ nuclei. We use a correlation observable $Δγ^{112}$ between charged meson pairs to detect the CME-induced charge separation and a novel event shape selectio…

A New Pyramid-Like Shape Always Lands the Same Side Up | Quanta Magazine
https://www.quantamagazine.org/a-new-pyramid-like-shape-always-lands-the-same-side-up-20250625/

A New Pyramid-Like Shape Always Lands the Same Side Up | Quanta Magazine
A tetrahedron is the simplest Platonic solid. Mathematicians have now made one that’s stable only on one side, confirming a decades-old conjecture.

Free course: "The Stories We Live By," an online course in ecolinguistics provided by the University of Gloucestershire.
"The course examines a wide range of texts from advertisements, lifestyle magazines and economics textbooks to surfing guides, Native American sayings and Japanese animation. In each case, the question is whether the stories that underlie texts encourage us to care about people and the ecosystems that life depends on."
Link to course:

X-ray spectroscopy method of white dwarf mass determination in intermediate polars. External systematic uncertainties
V. F. Suleimanov (IAAT, University of Tuebingen), L. Ducci (IAAT, University of Tuebingen), V. Doroshenko (IAAT, University of Tuebingen), K. Werner (IAAT, University of Tuebingen)
https://arxiv.org/abs/2506.0371…

X-ray spectroscopy method of white dwarf mass determination in intermediate polars. External systematic uncertainties
The masses of white dwarfs (WDs) in intermediate polars (IPs) can be determined from the shape of their hard X-ray spectra. Here we study the importance of all possible systematic uncertainties in this X-ray spectroscopy method, including finite radii and rotation of magnetospheres, finite accretion column height and accretion-flow inclination relative to the WD surface. We also investigate the importance of accretion-heated envelopes on WD surfaces in IPs which are increasing WD radii. Their p…

I understood this in principle but for some reason this graph really drove home the shape of the problem. https://vis.social/@infobeautiful/114614345328627391

Information Is Beautiful (@infobeautiful@vis.social)
Attached: 1 image If you're aged 30 or more, then 50% of all human fossil fuel emissions happened during your lifetime

Shape-for-Motion: Precise and Consistent Video Editing with 3D Proxy
Yuhao Liu, Tengfei Wang, Fang Liu, Zhenwei Wang, Rynson W. H. Lau
https://arxiv.org/abs/2506.22432

Shape-for-Motion: Precise and Consistent Video Editing with 3D Proxy
Recent advances in deep generative modeling have unlocked unprecedented opportunities for video synthesis. In real-world applications, however, users often seek tools to faithfully realize their creative editing intentions with precise and consistent control. Despite the progress achieved by existing methods, ensuring fine-grained alignment with user intentions remains an open and challenging problem. In this work, we present Shape-for-Motion, a novel framework that incorporates a 3D proxy for …

This https://arxiv.org/abs/2501.10786 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Complete analytical solution to the Cornell potential and heavy quarkonium structure
We use the recently proposed supersymmetric expansion algorithm (SEA) to obtain a complete analytical solution to the Schrödinger equation with the Cornell potential. We find that the energy levels $E_{nl}(λ)$ depend on $n^{2}$ and $L^{2}=l(l+1)$. For a given $n$, the energy {\emph {decreases}} with $l$ and the radial probabilities have the Coulomb shape but their peaks are shifted toward smaller radius. We study the heavy quarkonium structure on the light of these results, showing that the m…

An interview with Jony Ive and Laurene Powell Jobs on tech's next chapter, meeting in 1997, Steve Jobs, Apple, Powell Jobs' io investment in 2019, AI, and more (Matthew Garrahan/Financial Times)
https://www.ft.com/content/7f0a45b0-a3cc-4e1c-be71-1b7b42958d4…

‘Humanity deserves better’: Jony Ive and Laurene Powell Jobs on tech’s next chapter
After Apple, the Silicon Valley visionaries are looking to artificial intelligence to shape the future again

All the fundamental elements of live coding were taking shape in this early video https://www.youtube.com/watch?v=b9gp9oyn0NE

Fiat 500 and people ;-)

Optimising Photothermal Silver Nanoparticles for Efficient Light-Activated Shape Memory Response in AgNP-Polymer Composites
K. Krizmane, M. Dile, E. Einbergs, V. Vitola, A. Knoks, B. Hamawandi, A. Zolotarjovs
https://arxiv.org/abs/2507.00620

Optimising Photothermal Silver Nanoparticles for Efficient Light-Activated Shape Memory Response in AgNP-Polymer Composites
The study presents the synthesis and integration of silver nanoparticles (AgNPs) into a polyurethane (PU) matrix to create a light-activated shape memory polymer (SMP). AgNPs were synthesized using a microwave-assisted solvothermal method with polyvinylpyrrolidone (PVP) as a stabilizer, where varying the molecular weight of PVP and the AgNO3/PVP ratio influenced nanoparticle size and distribution. Characterisation via scanning electron microscopy (SEM) and dynamic light scattering (DLS) confirm…

It's June, so I've got my Javastation off the shelf for the first time in a couple of decades. This is a Javastation Krups, with 100MHz sparc, sold as a diskless workstation. I never realised it had a PPP ROM boot in! Anyway, I should get on and set up networking and a boot server.
(Note: the plastic on the clips on the doors is fragile, 2 just pinged off on me)
#retrocomputing

The 3D Cosmic Shoreline for Nurturing Planetary Atmospheres
Zach K. Berta-Thompson, Patcharapol Wachiraphan, Catriona Murray
https://arxiv.org/abs/2507.02136

The 3D Cosmic Shoreline for Nurturing Planetary Atmospheres
Various ``cosmic shorelines" have been proposed to delineate which planets have atmospheres. The fates of individual planet atmospheres may be set by a complex sea of growth and loss processes, driven by unmeasurable environmental factors or unknown historical events. Yet, defining population-level boundaries helps illuminate which processes matter and identify high-priority targets for future atmospheric searches. Here, we provide a statistical framework for inferring the position, shape, and …

Estimating a regression function under possible heteroscedastic and heavy-tailed errors. Application to shape-restricted regression
Yannick Baraud, Guillaume Maillard
https://arxiv.org/abs/2506.00852

Estimating a regression function under possible heteroscedastic and heavy-tailed errors. Application to shape-restricted regression
We consider a regression framework where the design points are deterministic and the errors possibly non-i.i.d. and heavy-tailed (with a moment of order $p$ in $[1,2]$). Given a class of candidate regression functions, we propose a surrogate for the classical least squares estimator (LSE). For this new estimator, we establish a nonasymptotic risk bound with respect to the absolute loss which takes the form of an oracle type inequality. This inequality shows that our estimator possesses natural …

Dredging up recollections of my experience as R6RS editor for my PLSS talk tomorrow.
https://2025.ecoop.org/details/plss-2025-papers/8/Do-Programming-Languages-Fulfill-Requirements-Should-They-

Chemotaxis-Driven Instabilities Govern Size, Shape and Migration Efficiency of Multicellular Clusters
Monika Sanoria, Gema Malet-Engra, Giorgio Scita, Nir Gov, Ajay Gopinathan
https://arxiv.org/abs/2506.00310

Chemotaxis-Driven Instabilities Govern Size, Shape and Migration Efficiency of Multicellular Clusters
The collective chemotaxis of multicellular clusters is an important phenomenon in various physiological contexts, ranging from embryonic development to cancer metastasis. Such clusters often display interesting shape dynamics and instabilities, but their physical origin, functional benefits, and role in overall chemotactic migration remain unclear. Here, we combine computational modeling and experimental observations of malignant lymphocyte cluster migration in vitro to understand how these dyn…

Analysis of LLM Bias (Chinese Propaganda & Anti-US Sentiment) in DeepSeek-R1 vs. ChatGPT o3-mini-high
PeiHsuan Huang, ZihWei Lin, Simon Imbot, WenCheng Fu, Ethan Tu
https://arxiv.org/abs/2506.01814

Analysis of LLM Bias (Chinese Propaganda & Anti-US Sentiment) in DeepSeek-R1 vs. ChatGPT o3-mini-high
Large language models (LLMs) increasingly shape public understanding and civic decisions, yet their ideological neutrality is a growing concern. While existing research has explored various forms of LLM bias, a direct, cross-lingual comparison of models with differing geopolitical alignments-specifically a PRC-system model versus a non-PRC counterpart-has been lacking. This study addresses this gap by systematically evaluating DeepSeek-R1 (PRC-aligned) against ChatGPT o3-mini-high (non-PRC) for…

This https://arxiv.org/abs/2310.13245 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

MultiDLO: Simultaneous Shape Tracking of Multiple Deformable Linear Objects with Global-Local Topology Preservation
MultiDLO is a real-time algorithm for estimating the shapes of multiple, intertwining deformable linear objects (DLOs) from RGB-D image sequences. Unlike prior methods that track only a single DLO, MultiDLO simultaneously handles several objects. It uses the geodesic distance in the Global-Local Topology Preservation algorithm to define both inter-object identity and intra-object topology, ensuring entangled DLOs remain distinct with accurate local geometry. The MultiDLO algorithm is demonstrat…

H${\beta}$ line shape and radius-luminosity relation in 2.5D FRADO
M. H. Naddaf, M. L. Martinez-Aldama, D. Hutsemekers, D. Savic, B. Czerny
https://arxiv.org/abs/2506.01159

H$β$ line shape and radius-luminosity relation in 2.5D FRADO
Galaxies with active galactic nuclei (AGN) exhibit broad emission lines as a key spectral feature. The shape of emission-line profiles depends on the complex dynamics of discrete clouds within a spatially extended region known as the Broad Line Region (BLR). The distribution of cloud positions within BLR, or the geometry of BLR indeed, is directly linked to measurements of time lags of BLR. In this paper, we convolve a large grid of physically-based simulations of cloud distributions in BLR wit…

Bookmarking this as the only thing I'll need to do exactly as shown to get back in shape ->
Evolution of Dance
https://www.youtube.com/watch?v=dMH0bHeiRNg

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

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

On the distribution of shapes of pure quartic number fields
Sudipa Das, Sushant Kala, Arunabha Mukhopadhyay, Anwesh Ray
https://arxiv.org/abs/2506.23766 ht…

On the distribution of shapes of pure quartic number fields
The shape of a number field is a subtle arithmetic invariant arising from the geometry of numbers. It is defined as the equivalence class of the lattice of integers with respect to linear operations that are composites of rotations, reflections, and positive scalar dilations. For a number field of degree $n$, the shape is a point in the space of shapes $\mathscr{S}_{n-1}$, which is the double quotient $GL_{n-1}(\mathbb{Z}) \backslash GL_{n-1}(\mathbb{R}) / GO_{n-1}(\mathbb{R})$. In this paper, …

This https://arxiv.org/abs/2505.19945 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Signed Angle Rigid Graphs for Network Localization and Formation Control
Graph rigidity theory studies the capability of a graph embedded in the Euclidean space to constrain its global geometric shape via local constraints among nodes and edges, and has been widely exploited in network localization and formation control. In recent years, the traditional rigidity theory has been extended by considering new types of local constraints such as bearing, angle, ratio of distance, etc. Among them, the signed angle constraint received extensive attention since it is practic…

On how walls shape dissipation intermittency
Peng-Yu Duan, Xi Chen, Katepalli R. Sreenivasan
https://arxiv.org/abs/2506.22917 https://

On how walls shape dissipation intermittency
Intermittency of energy dissipation has long been studied via high-order moments in homogeneous and isotropic turbulence, but not much where the boundary effects are explicitly included. Here, we derive two fundamental Reynolds number scaling expressions for dissipation moments in wall-bounded flows -- one in the outer region where the boundary effects are weak and the other close to the walls where those effects are strong -- and support these expressions by direct numerical simulations. Dissi…

Whoever decided to make the Kensington lock socket and USB-C very close in size/shape, and put them right next to each other on many laptops...
What is wrong with you?

I've just saw a van painted to make an illusion of being broken in half. Like, there's a black crack painted in the middle, all horizontal lines are tilted and there's even a slight black triangle painted on top to enhance the impression. I found it really hard to perceive its true shape.

Towards a Signal Detection Based Measure for Assessing Information Quality of Explainable Recommender Systems
Yeonbin Son, Matthew L. Bolton
https://arxiv.org/abs/2507.01168

Towards a Signal Detection Based Measure for Assessing Information Quality of Explainable Recommender Systems
There is growing interest in explainable recommender systems that provide recommendations along with explanations for the reasoning behind them. When evaluating recommender systems, most studies focus on overall recommendation performance. Only a few assess the quality of the explanations. Explanation quality is often evaluated through user studies that subjectively gather users' opinions on representative explanatory factors that shape end-users' perspective towards the results, not about the …

Gravitational Redshift for Rapidly Rotating Neutron Stars
Zsombor Jakab, Sharon Morsink
https://arxiv.org/abs/2507.02234 https://arxi…

Gravitational Redshift for Rapidly Rotating Neutron Stars
The Oblate Schwarzschild (OS) approximation is a method often used to compute the flux of X-rays emitted from a rapidly rotating neutron star. In this approximation, the oblate shape of the rotating star is embedded in the Schwarzschild metric, which is used to compute the redshift of photon energies as they propagate from the star to the telescope. In this paper, we demonstrate that there are small errors introduced by the standard treatment of photon redshift in the OS approximation and provi…

Cathodes and Shape Modification of Cavity for DESY Superconducting Photoinjector
J. Sekutowicz, D. Bazyl, E. Vogel, D. Reschke, A. Brinkmann, D. Klinke, D. Kostin, T. Ramm, A. Sulimov, H. Weise, M. Wiencek
https://arxiv.org/abs/2507.01658

Cathodes and Shape Modification of Cavity for DESY Superconducting Photoinjector
Four DESY prototypes of the L-band superconducting RF photoinjector cavity demonstrated on-axis peak gradients above 55MV/m during multiple vertical cryogenic tests. Two of these prototypes,16G09 and 16G10, achieved these gradients with both superconducting and normal-conducting metallic cathodes, fabricated from either high-purity niobium or lower-purity copper. The DESY photoinjector, under development for over two decades as a continuous-wave electron source for FELs, differs from other SRF …

This https://arxiv.org/abs/2502.20656 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Localization of tumor through a non-conventional numerical shape optimization technique
This paper introduces a method for estimating the shape and location of an embedded tumor. The approach utilizes shape optimization techniques, applying the coupled complex boundary method. By rewriting the problem -- characterized by a measured temperature profile and corresponding flux (e.g., from infrared thermography) -- into a complex boundary value problem with a complex Robin boundary condition, the method simplifies the over-specified nature of the problem. The size and location of the …

Gender and Discipline Shape Length, Content and Tone of Grant Peer Review Reports
Stefan M\"uller, Gabriel Okasa, Michaela Strinzel, Anne Jorstad, Katrin Milzow, Matthias Egger
https://arxiv.org/abs/2507.00103

Gender and Discipline Shape Length, Content and Tone of Grant Peer Review Reports
Peer review by experts is central to the evaluation of grant proposals, but little is known about how gender and disciplinary differences shape the content and tone of grant peer review reports. We analyzed 39,280 review reports submitted to the Swiss National Science Foundation between 2016 and 2023, covering 11,385 proposals for project funding across 21 disciplines from the Social Sciences and Humanities (SSH), Life Sciences (LS), and Mathematics, Informatics, Natural Sciences, and Technolog…

Muon-induced fission as a probe of the underlying dynamics in nuclear fission
Christian Ross, A. S. Umar
https://arxiv.org/abs/2507.02191 https://

Muon-induced fission as a probe of the underlying dynamics in nuclear fission
Muon-induced fission could be utilized as a probe to study the underlying dynamics of nuclear fission. The probability of muon attachment to the light asymmetric fission fragment is sensitive to fission dynamics, such as the timescale and friction of the fission event, charge asymmetry, and possibly the shape of the fission fragments. We focus on muonic atoms that are formed with actinide nuclei. A relativistic approach is employed, solving the Dirac equation for the muonic wavefunction in the …

I'll start the Conejo Valley Amateur Radio Club (CVARC) Field Day posts with some of the infrastructure we set up. These tents are a vital part of it, on load from the EMS services in our county. Two are used for radio ops, while the third is entirely dedicated to Public Information and visitor info. It's amazing to watch them magically take shape.
The City of Thousand Oaks brings their communications trailer for an airing-out also.

Replaced article(s) found for q-bio.QM. https://arxiv.org/list/q-bio.QM/new
[1/1]:
- A computational pipeline for clustering left atrial appendage morphology via elastic shape analysis
Zan Ahmad, et al.

This https://arxiv.org/abs/2501.08718 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Pixelization effects in cosmic shear angular power spectra
We conduct a comprehensive study into the impact of pixelization on cosmic shear, uncovering several sources of bias in standard pseudo-$C_\ell$ estimators based on discrete catalogues. We derive models that can bring residual biases to the percent level on small scales. We elucidate the impact of aliasing and the varying shape of HEALPix pixels on power spectra and show how the HEALPix pixel window function approximation is made in the discrete spin-2 setting. We propose several improvements t…

On the Stability of the Euler Characteristic Transform for a Perturbed Embedding
Jasmine George, Oscar Lledo Osborn, Elizabeth Munch, Messiah Ridgley II, Elena Xinyi Wang
https://arxiv.org/abs/2506.19991

On the Stability of the Euler Characteristic Transform for a Perturbed Embedding
The Euler Characteristic Transform (ECT) is a robust method for shape classification. It takes an embedded shape and, for each direction, computes a piecewise constant function representing the Euler Characteristic of the shape's sublevel sets, which are defined by the height function in that direction. It has applications in TDA inverse problems, such as shape reconstruction, and is also employed with machine learning methodologies. In this paper, we define a distance between the ECTs of two d…

Locating Risk: Task Designers and the Challenge of Risk Disclosure in RAI Content Work
Alice Qian Zhang, Ryland Shaw, Laura Dabbish, Jina Suh, Hong Shen
https://arxiv.org/abs/2505.24246

Locating Risk: Task Designers and the Challenge of Risk Disclosure in RAI Content Work
As AI systems are increasingly tested and deployed in open-ended and high-stakes domains, crowd workers are often tasked with responsible AI (RAI) content work. These tasks include labeling violent content, moderating disturbing text, or simulating harmful behavior for red teaming exercises to shape AI system behaviors. While prior efforts have highlighted the risks to worker well-being associated with RAI content work, far less attention has been paid to how these risks are communicated to wor…

This https://arxiv.org/abs/2409.06581 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Velocity surface disorder of large deviation rate functions of the random walk in strongly mixing environment
In this work, we establish the existence of large deviation principles of random walk in strongly mixing environments. The quenched and annealed rate functions have the same zero set whose shape is either a singleton point or a line segment, with an illustrative example communicated and given by F. Rassoul-Agha. Whenever the level of disorder is controlled, the two rate functions are shown to conform on compact sets at the boundary and in the interior both under strongly mixing conditions.

Immunometabolism at the Crossroads of Infection: Mechanistic and Systems-Level Perspectives from Host and Pathogen
Sunayana Malla, Nabia Shahreen, Rajib Saha
https://arxiv.org/abs/2506.02236

Immunometabolism at the Crossroads of Infection: Mechanistic and Systems-Level Perspectives from Host and Pathogen
The emerging field of immunometabolism has underscored the central role of metabolic pathways in orchestrating immune cell function. Far from being passive background processes, metabolic activities actively regulate key immune responses. Fundamental pathways such as glycolysis, the tricarboxylic acid (TCA) cycle, and oxidative phosphorylation critically shape the behavior of immune cells, influencing macrophage polarization, T cell activation, and dendritic cell function. In this review, we sy…

Construction of an Organ Shape Atlas Using a Hierarchical Mesh Variational Autoencoder
Zijie Wang, Ryuichi Umehara, Mitsuhiro Nakamura, Megumi Nakao
https://arxiv.org/abs/2506.15557

Construction of an Organ Shape Atlas Using a Hierarchical Mesh Variational Autoencoder
An organ shape atlas, which represents the shape and position of the organs and skeleton of a living body using a small number of parameters, is expected to have a wide range of clinical applications, including intraoperative guidance and radiotherapy. Because the shape and position of soft organs vary greatly among patients, it is difficult for linear models to reconstruct shapes that have large local variations. Because it is difficult for conventional nonlinear models to control and interpre…

Rudolf Rocker argued that true social liberation requires the abolition of all forms of political, economic, and social oppression, he maintained that even complete economic equality is meaningless without freedom, and that any system enforcing authority or coercion undermines genuine emancipation.
When I think about it, I strongly agree with this view, because real freedom can only exist where no one is subject to outside control, where each person has the space to shape their own lif…

Creative Commons jumps the shark.
*smdh*
#AI #CreativeCommons https://mastodon.social/@creativeco…

First experimental demonstration of plasma shape control in a tokamak through Model Predictive Control
Adriano Mele, Maria A. Topalova, Cristian Galperti, Stefano Coda, TCV team, Eurofusion Tokamak Exploitation Team
https://arxiv.org/abs/2506.20096

First experimental demonstration of plasma shape control in a tokamak through Model Predictive Control
In this work, a Model Predictive Controller (MPC) is proposed to control the plasma shape in the Tokamak à Configuration Variable (TCV). The proposed controller relies on models obtained by coupling linearized plasma response models, derived from the \texttt{fge} code of the Matlab EQuilibrium toolbox (MEQ) suite, with a state-space description of the core TCV magnetic control system. It optimizes the reference signals fed to this inner control loop in order to achieve the desired plasma shape…

In praise of the Triangle
https://www.tumblr.com/troyminos/784626346278174720?source=share

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

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

🗳️ A new virtual summit is in the works—uniting educators, activists, artists & citizens to resist authoritarianism defend democracy. 🛠️ Help shape the vision: take the planning survey − bit.ly/4jhX8tR
#Resist #Democracy

From Translink
Help Shape the Future of Compass
We're exploring the next generation of Compass and are looking for your input which will help guide the future of our region's transit experience. Complete the survey and enter the draw to win one of ten Compass Minis pre-loaded with a monthly pass!

Red Teaming AI Policy: A Taxonomy of Avoision and the EU AI Act
Rui-Jie Yew, Bill Marino, Suresh Venkatasubramanian
https://arxiv.org/abs/2506.01931 https:…

Red Teaming AI Policy: A Taxonomy of Avoision and the EU AI Act
The shape of AI regulation is beginning to emerge, most prominently through the EU AI Act (the "AIA"). By 2027, the AIA will be in full effect, and firms are starting to adjust their behavior in light of this new law. In this paper, we present a framework and taxonomy for reasoning about "avoision" -- conduct that walks the line between legal avoidance and evasion -- that firms might engage in so as to minimize the regulatory burden the AIA poses. We organize these avoision strategies around th…

This https://arxiv.org/abs/2502.02080 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Insight into the physical processes that shape the metallicity profiles in galaxies
The distribution of chemical elements in the star-forming regions can store information on the chemical enrichment history of the galaxies. Negative metallicity gradients are expected in galaxies forming inside-out. However, observations show that the metallicity profiles can be broken. We aim to study the diversity of metallicity profiles that can arise in the current cosmological context and compare them with available observations. We also seek to identify the physical processes responsible …

SN 2024bfu, SN 2025qe, and the early light curves of type Iax supernovae
M. R. Magee, T. L. Killestein, M. Pursiainen, B. Godson, D. Jarvis, C. Jim\'enez-Palau, J. D. Lyman, D. Steeghs, B. Warwick, J. P. Anderson, T. Butterley, T. -W. Chen, V. S. Dhillon, L. Galbany, S. Gonz\'alez-Gait\'an, M. Gromadzki, C. Inserra, L. Kelsey, A. Kumar, G. Leloudas, S. Mattila, T. E. M\"uller-Bravo, K. Noysena, G. Ramsay, S. Srivastav, R. Starling, R. W. Wilson, D. R. Young, K. Ackley,…

SN 2024bfu, SN 2025qe, and the early light curves of type Iax supernovae
Type Iax supernovae (SNe Iax) are perhaps the most numerous class of peculiar thermonuclear supernova and yet their sample size, particularly those observed shortly after explosion, remains relatively small. In this paper we present photometric and spectroscopic observations of two SNe Iax discovered shortly after explosion, SN 2024bfu and SN 2025qe. Both SNe were observed by multiple all-sky surveys, enabling tight constraints on the moment of first light and the shape of the early light curve…

This https://arxiv.org/abs/2501.07817 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Cosmological Constraints using the Void Size Function Data from BOSS DR16
We measure the void size function (VSF) from the Baryon Oscillation Spectroscopic Survey (BOSS DR16) and perform the cosmological constraints. The BOSS DR16 galaxy sample is selected in the redshift range from $z = 0.2$ to 0.8, considering the selection criteria based on galaxy number density. We identify non-spherical voids from this galaxy catalog using the Voronoi tessellation and watershed algorithm without assuming any void shape. We select the void samples based on the void ellipticity, a…

This https://arxiv.org/abs/2503.08894 has been replaced.
initial toot: https://mastoxiv.page/@arXi…

Modeling and computation of the effective elastic behavior of parallelogram origami metamaterials
Origami metamaterials made of repeating unit cells of parallelogram panels joined at folds dramatically change their shape through a collective motion of their cells. Here we develop an effective elastic model and numerical method to study the large deformation response of these metamaterials under a broad class of loads. The model builds on an effective plate theory derived in our prior work [64]. The theory captures the overall shape change of all slightly stressed parallelogram origami defor…

I've been using #kicad to reverse my dad's frequency standard, locked off BBC Radio4 198kHz. I'm sure there are bits I've not got right, but the vague shape is there - a loop with input amp/filters from the receiver, which ends up combining with the divided output (at 2kHz) with the output of a 10MHz crystal oscillator based on a 74HC00; that combined result ends up driving a var…

Characterization based Goodness-of-Fit for Generalized Pareto Distribution: A Blend of Stein's Identity and Dynamic Survival Extropy
Gaurav Kandpal, Nitin Gupta
https://arxiv.org/abs/2506.01473

Characterization based Goodness-of-Fit for Generalized Pareto Distribution: A Blend of Stein's Identity and Dynamic Survival Extropy
This paper proposes a goodness of fit test for the generalized Pareto distribution (GPD). Firstly, we provide two characterizations of GPD based on Stein's identity and dynamic survival extropy. These characterizations are used to test GPD separately for the positive and negative shape parameter cases. A Monte Carlo simulation is conducted to provide the critical values and power of the proposed test against a good number of alternatives. Our test is simple to use and it has asymptotic normalit…

Extracting the kinetic freeze-out properties of high energy pp collisions at the LHC with event shape classifiers
Jialin He, Xinye Peng, Zhongbao Yin, Liang Zheng
https://arxiv.org/abs/2506.20612

Extracting the kinetic freeze-out properties of high energy pp collisions at the LHC with event shape classifiers
Event shape measurements are crucial for understanding the underlying event and multiple-parton interactions (MPIs) in high energy proton proton (pp) collisions. In this paper, the Tsallis Blast-Wave model with independent non-extensive parameters for mesons and baryons, was applied to analyze transverse momentum spectra of charged pions, kaons, and protons in pp collision events at $\sqrt{s}=13$ TeV classified by event shape estimators relative transverse event activity, spherocity, and flatte…

This https://arxiv.org/abs/2503.15738 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nuc…

Electromagnetic moments in the Sn-Gd region determined within nuclear DFT
Within the nuclear DFT framework, employing the Skyrme UNEDF1 functional and incorporating pairing correlations, we determined the spectroscopic electric quadrupole and magnetic dipole moments of the $\nu11/2^{-}$ and $\pi7/2^{+}$ configurations in heavy, deformed, open-shell odd nuclei with $50\leq Z \leq 64$. The notions of self-consistent shape and spin polarisations due to odd nucleons responsible for generating total electric quadrupole and magnetic dipole moments were transformed into det…

XRISM analysis of the complex Fe K$\alpha$ line in Centaurus A
David Bogensberger, Yuya Nakatani, Tahir Yaqoob, Yoshihiro Ueda, Richard Mushotzky, Jon M. Miller, Luigi C. Gallo, Yasushi Fukazawa, Taishu Kayanoki, Makoto Tashiro, Hirofumi Noda, Toshiya Iwata, Kouichi Hagino, Misaki Mizumoto, Misaki Urata, Frederick S. Porter, Michael Loewenstein
https…

XRISM analysis of the complex Fe K$α$ line in Centaurus A
We analyze the high-resolution XRISM/Resolve spectrum of the Fe K$α$ emission line of the nearest active galactic nucleus, in Centaurus A. The line features two narrow and resolved peaks of Fe K$α_1$, and Fe K$α_2$ with a FWHM of $(4.8\pm0.2)\times10^2$ km/s each. A broad line with a FWHM of $(4.3\pm0.3)\times10^3$ km/s, and with a flux similar to the two narrow line cores, is also required. This broad component is not observed in the optical or IR spectra of Cen A. The line shape requires t…

What is the best shape of a city
Tobias Batik, Guillermo Prieto-Viertel, Jiaqi Liang, Liuhuaying Yang, D\'aniel Kondor, Rafael Prieto-Curiel
https://arxiv.org/abs/2507.00100

What is the best shape of a city
Urban form plays a crucial role in shaping transportation patterns, accessibility, energy consumption, and more. Our study examines the relationship between urban form and transportation energy use by developing a parametric model that simulates city structures and their impact on travel distances. We explore various urban morphologies, including sprawling, elongated, compact, and vertically concentrated cities, and consider five urban profiles: "needle," "pyramid," "pancake," "bowl," and "ring…

Effects of high-frequency and balanced motions on Lagrangian pair dispersion at the ocean surface
Michael Maalouly, Apolline Dekens, Guillaume Lapeyre, Aur\'elien Luigi Serge Ponte, Stefano Berti
https://arxiv.org/abs/2506.01002

Effects of high-frequency and balanced motions on Lagrangian pair dispersion at the ocean surface
We investigate the properties of relative dispersion of Lagrangian particles in a global-ocean simulation resolving both inertia-gravity waves (IGW) and meso and submesoscale (M/SM) turbulence. More specifically, we test if the dispersion laws depend on the shape of the Eulerian kinetic energy spectrum, as predicted from quasi-geostrophic turbulence theory. To this end, we focus on two areas, in the Kuroshio Extension and in the Gulf Stream, for which the relative importance of IGW compared to …

The Shape of a Mars Mission (Idle Words)
#Mars

This https://arxiv.org/abs/2505.22727 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

The galaxy-halo connection of disc galaxies over six orders of magnitude in stellar mass
(Abridged) The relations between stellar ($M_\ast$), gas ($M_{\rm gas}$), baryonic ($M_{\rm bar} = M_\ast + M_{\rm gas}$), and dark matter halo mass ($M_{200}$) provide unique constraints on galaxy formation and cosmology. The shape of the relations constrains how galaxies regulate their growth through gas accretion, star formation, and feedback; their scatter probes the stochasticity of galaxy assembly. Here, we assemble a sample of 49 nearby gas-rich dwarf and massive disc galaxies with unm…

Murmurations of Modular Forms and $p$-power Coefficients
Debanjana Kundu, Katharina Mueller
https://arxiv.org/abs/2507.00738 https://…

Murmurations of Modular Forms and $p$-power Coefficients
We extend the work of N. Zubrilina on murmuration of modular forms to the case when prime-indexed coefficients are replaced by squares of primes. Our key observation is that the shape of the murmuration density is the same.

DefFusionNet: Learning Multimodal Goal Shapes for Deformable Object Manipulation via a Diffusion-based Probabilistic Model
Bao Thach, Siyeon Kim, Britton Jordan, Mohanraj Shanthi, Tanner Watts, Shing-Hei Ho, James M. Ferguson, Tucker Hermans, Alan Kuntz
https://arxiv.org/abs/2506.18779

DefFusionNet: Learning Multimodal Goal Shapes for Deformable Object Manipulation via a Diffusion-based Probabilistic Model
Deformable object manipulation is critical to many real-world robotic applications, ranging from surgical robotics and soft material handling in manufacturing to household tasks like laundry folding. At the core of this important robotic field is shape servoing, a task focused on controlling deformable objects into desired shapes. The shape servoing formulation requires the specification of a goal shape. However, most prior works in shape servoing rely on impractical goal shape acquisition meth…

Shape sensitivity analysis of the heat equation and the Dirichlet-to-Neumann map
Matteo Dalla Riva, Paolo Luzzini, Paolo Musolino
https://arxiv.org/abs/2506.21196

Shape sensitivity analysis of the heat equation and the Dirichlet-to-Neumann map
We study a Dirichlet problem for the heat equation in a domain containing an interior hole. The domain has a fixed outer boundary and a variable inner boundary determined by a diffeomorphism $ϕ$. We analyze the maps that assign to the infinite-dimensional shape parameter $ϕ$ the corresponding solution and its normal derivative, and we prove that both are smooth. Motivated by an application to an inverse problem, we then compute the differential with respect to $ϕ$ of the normal derivative of…

This https://arxiv.org/abs/2501.09060 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

The COSMOS-Web deep galaxy group catalog up to $z=3.7$
Galaxy groups with $M_{tot} \lesssim 10^{14}$ $M_\odot$ and up to a few tens of members are the most common galaxy environment, marking the transition between field and massive clusters. Identifying groups plays a crucial role in understanding structure formation and galaxy evolution. Modern deep surveys allow us to build well-characterized samples of groups up to the regime where structures were taking shape. We aimed to build the largest deep catalog of galaxy groups to date over the COSMOS-W…

Gravothermal expansion of dwarf spheroidal galaxies heated by dark subhaloes
Jorge Pe\~narrubia, Rapha\"el Errani, Eduardo Vitral, Matthew G. Walker
https://arxiv.org/abs/2506.03904

Gravothermal expansion of dwarf spheroidal galaxies heated by dark subhaloes
We use analytical and $N$-body methods to study the evolution of dwarf spheroidal galaxies (dSphs) embedded in dark matter (DM) haloes that host a sizeable subhalo population. Dark subhaloes generate a fluctuating gravitational field that injects energy into stellar orbits, driving a gradual expansion of dSphs. Despite the overall expansion, the stellar density profile preserves its initial shape, suggesting that the evolution proceeds in a self-similar manner. Meanwhile, the velocity dispersio…

KnotDLO: Toward Interpretable Knot Tying
Holly Dinkel, Raghavendra Navaratna, Jingyi Xiang, Brian Coltin, Trey Smith, Timothy Bretl
https://arxiv.org/abs/2506.22176

KnotDLO: Toward Interpretable Knot Tying
This work presents KnotDLO, a method for one-handed Deformable Linear Object (DLO) knot tying that is robust to occlusion, repeatable for varying rope initial configurations, interpretable for generating motion policies, and requires no human demonstrations or training. Grasp and target waypoints for future DLO states are planned from the current DLO shape. Grasp poses are computed from indexing the tracked piecewise linear curve representing the DLO state based on the current curve shape and a…

Partnering with AI: A Pedagogical Feedback System for LLM Integration into Programming Education
Niklas Scholz, Manh Hung Nguyen, Adish Singla, Tomohiro Nagashima
https://arxiv.org/abs/2507.00406

Partnering with AI: A Pedagogical Feedback System for LLM Integration into Programming Education
Feedback is one of the most crucial components to facilitate effective learning. With the rise of large language models (LLMs) in recent years, research in programming education has increasingly focused on automated feedback generation to help teachers provide timely support to every student. However, prior studies often overlook key pedagogical principles, such as mastery and progress adaptation, that shape effective feedback strategies. This paper introduces a novel pedagogical framework for …

Anisotropic Counts-in-Cells in Redshift Space: A New Route to Cosmological Constraints from Galaxy Surveys
Pawe{\l} Drozda, Wojciech A. Hellwing, Maciej Bilicki
https://arxiv.org/abs/2506.01762

Anisotropic Counts-in-Cells in Redshift Space: A New Route to Cosmological Constraints from Galaxy Surveys
We introduce a novel extension of the volume-averaged correlation function (VACF) framework by replacing the traditional spherical smoothing kernels with anisotropic, ellipsoidal windows. This generalized approach enables the study of shape-dependent clustering statistics and captures directional information encoded in large-scale structure, particularly in redshift space where galaxy distribution is distorted by peculiar velocities. We define and compute ellipsoidal VACFs $\barξ_J (r_{\parall…

Multi-Robot Assembly of Deformable Linear Objects Using Multi-Modal Perception
Kejia Chen, Celina Dettmering, Florian Pachler, Zhuo Liu, Yue Zhang, Tailai Cheng, Jonas Dirr, Zhenshan Bing, Alois Knoll, R\"udiger Daub
https://arxiv.org/abs/2506.22034

Multi-Robot Assembly of Deformable Linear Objects Using Multi-Modal Perception
Industrial assembly of deformable linear objects (DLOs) such as cables offers great potential for many industries. However, DLOs pose several challenges for robot-based automation due to the inherent complexity of deformation and, consequentially, the difficulties in anticipating the behavior of DLOs in dynamic situations. Although existing studies have addressed isolated subproblems like shape tracking, grasping, and shape control, there has been limited exploration of integrated workflows tha…

Behavioral alignment in social networks
Yu Xia, Alex McAvoy, Qi Su
https://arxiv.org/abs/2506.00046 https://arxiv.org/pdf/2506.00046

Behavioral alignment in social networks
The orderly behaviors observed in large-scale groups, such as fish schooling and the organized movement of crowds, are both ubiquitous and essential for the survival and stability of these systems. Such complex collective behaviors often emerge from simple local interactions and strategy adjustments among individuals. Understanding how these basic rules shape complex group dynamics has long been a significant scientific challenge. Historically, research has predominantly focused on imitation an…

Analysis of shape and angular orientation parameters of velocity-dependent dark matter annihilation signals in Galactic Centers for FIRE simulations
Daniel McKeown
https://arxiv.org/abs/2506.16583

Analysis of shape and angular orientation parameters of velocity-dependent dark matter annihilation signals in Galactic Centers for FIRE simulations
We use FIRE-2 zoom cosmological simulations of Milky Way size galaxy halos to characterize the shape of the J-factor emission signal on the sky. We find that, at a fixed dJ/dΩ contour,the shape is well-fit by an ellipse, with semi-major axis Rmajor and semi-minor axis Rminor measured in degrees on the sky. We use least squares fitting to fit ellipses to the J-factor emission, viewed from the solar location. The ratio of minor to major axes (Rminor/Rmajor) allows us to characterize the shape of…