Tootfinder

glad people are advocating for more tree planting opportunities in sf! if you email, consider asking them for a permit process to plant trees in bulbouts in the parking lane too. this allows for larger tree beds, healthier trees and built in traffic calming and is common in berkeley & santa cruz but currently not permitted in sf!

Asymptotic analysis on narrow tubes: narrow escape problems and diffusion processes
Wen-Tai Hsu
https://arxiv.org/abs/2508.15060 https://arxiv.org/pdf/2508…

Asymptotic analysis on narrow tubes: narrow escape problems and diffusion processes
This paper investigates a diffusion process in a narrow tubular domain with reflecting boundary conditions, where the geometry serves as a singular perturbation of an underlying graph in $\mathbb{R}^2$ or $\mathbb{R}^3$. The construction incorporates distinct scaling regimes in the neighborhoods of the graph's vertices and edges. We show that, in the limit, the projected process converges weakly to a diffusion process on the graph, with gluing conditions at the vertices that depend on the relat…

The differences in the Narrow Line Region of nearby QSOs 1 and 2 -- I: higher excitation and contribution of shocks in type 1's
Gabriel R. Hauschild-Roier, Thaisa Storchi-Bergmann, Rog\'erio Riffel, Vincenzo Mainieri
https://arxiv.org/abs/2508.14668

The differences in the Narrow Line Region of nearby QSOs 1 and 2 -- I: higher excitation and contribution of shocks in type 1's
We compare the excitation of the Narrow-Line Region (NLR) of type 1 and type 2 QSOs for redshifts $0.4 \le z \le 0.5$ via the analysis of their emission line properties in Sloan Digital Sky Survey (SDSS) near-UV/optical spectra. We fit the continuum and emission lines, using two kinematic components for \oiii$λ$5007 and \hb\ (narrow and broad) and a single component for the weaker lines. We find two main differences in the NLR excitation of type 1 and 2 QSOs: (i) QSOs 2 have higher \oiii/\hb\ …

Single-shot sorting of M\"ossbauer time-domain data at X-ray free electron lasers
Miriam Gerharz, Willi Hippler, Berit Marx-Glowna, Sakshath Sadashivaiah, Kai S. Schulze, Ingo Uschmann, Robert L\"otzsch, Kai Schlage, Sven Velten, Dominik Lentrodt, Lukas Wolff, Olaf Leupold, Ilya Sergeev, Hans-Christian Wille, Cornelius Strohm, Marc Guetg, Shan Liu, Gianluca Aldo Geloni, Ulrike Boesenberg, J\"org Hallmann, Alexey Zozulya, Jan-Etienne Pudell, Angel Rodriguez-Fernandez, Moh…

Single-shot sorting of Mössbauer time-domain data at X-ray free electron lasers
Mössbauer spectroscopy is widely used to study structure and dynamics of matter with remarkably high energy resolution, provided by the narrow nuclear resonance line widths. However, the narrow width implies low count rates, such that experiments commonly average over extended measurement times or many x-ray pulses (``shots''). This averaging impedes the study of non-equilibrium phenomena. It has been suggested that X-ray free-electron lasers (XFELs) could enable Mössbauer single-shot measure…

Victoria Shynkar and her colleagues, who work for the demining charity the Halo Trust,
uncovered 243 TM-62 Soviet-designed anti-tank mines left by the Russian army in a neighbouring field.
A chunky and intimidating 32-centimetres in diameter and 13-cm-wide,
the TM-62 contains 7.5 kilos of TNT and can puncture a tank if triggered. 
The presence of landmines and other unexploded ordnance is a significant issue in Ukraine,
impacting civilians and Ukraine’s agricultu…

Ukraine’s Contaminated Land: Clearing Landmines With Rakes, Tractors and Drones - bellingcat
This story was produced in partnership with Agence France-Presse (AFP). In a field near the small town of Bezymenne in southern Ukraine, Viktoria Shynkar carefully picks out a narrow path through the overgrown grass in front of her.  This small corridor of farmland in Mykolaiv Oblast will be checked for the presence of landmines and […]

Hey all, there are some photos from a hike in the #schwarzwald
Actually we thought that it would just take us less than an hour - but it wasn't simply a straight walk :-D
It was raining from time to time - which was indeed pretty cool. A) there was noone around except us and B) the colors were often just insane. Fully saturated green, the brown from the wood - and sometimes…

D3FNet: A Differential Attention Fusion Network for Fine-Grained Road Structure Extraction in Remote Perception Systems
Chang Liu, Yang Xu, Tamas Sziranyi
https://arxiv.org/abs/2508.15537

D3FNet: A Differential Attention Fusion Network for Fine-Grained Road Structure Extraction in Remote Perception Systems
Extracting narrow roads from high-resolution remote sensing imagery remains a significant challenge due to their limited width, fragmented topology, and frequent occlusions. To address these issues, we propose D3FNet, a Dilated Dual-Stream Differential Attention Fusion Network designed for fine-grained road structure segmentation in remote perception systems. Built upon the encoder-decoder backbone of D-LinkNet, D3FNet introduces three key innovations:(1) a Differential Attention Dilation Extra…

SciEvent: Benchmarking Multi-domain Scientific Event Extraction
Bofu Dong, Pritesh Shah, Sumedh Sonawane, Tiyasha Banerjee, Erin Brady, Xinya Du, Ming Jiang
https://arxiv.org/abs/2509.15620

SciEvent: Benchmarking Multi-domain Scientific Event Extraction
Scientific information extraction (SciIE) has primarily relied on entity-relation extraction in narrow domains, limiting its applicability to interdisciplinary research and struggling to capture the necessary context of scientific information, often resulting in fragmented or conflicting statements. In this paper, we introduce SciEvent, a novel multi-domain benchmark of scientific abstracts annotated via a unified event extraction (EE) schema designed to enable structured and context-aware unde…

Gave a talk last night about #censorship of #research at the San Francisco #NerdNite! Really fun and a great way to get info out to folks outside the very narrow corridors of

Automated Optimization Modeling through Expert-Guided Large Language Model Reasoning
Beinuo Yang, Qishen Zhou, Junyi Li, Xingchen Su, Simon Hu
https://arxiv.org/abs/2508.14410 h…

Automated Optimization Modeling through Expert-Guided Large Language Model Reasoning
Optimization Modeling (OM) is essential for solving complex decision-making problems. However, the process remains time-consuming and error-prone, heavily relying on domain experts. While Large Language Models (LLMs) show promise in addressing these challenges through their natural language understanding and reasoning capabilities, current approaches face three critical limitations: high benchmark labeling error rates reaching up to 42\%, narrow evaluation scope that only considers optimal valu…

DeepTelecom: A Digital-Twin Deep Learning Dataset for Channel and MIMO Applications
Bohao Wang, Zehua Jiang, Zhenyu Yang, Chongwen Huang, Yongliang Shen, Siming Jiang, Chen Zhu, Zhaohui Yang, Richeng Jin, Zhaoyang Zhang, Sami Muhaidat, Merouane Debbah
https://arxiv.org/abs/2508.14507

DeepTelecom: A Digital-Twin Deep Learning Dataset for Channel and MIMO Applications
Domain-specific datasets are the foundation for unleashing artificial intelligence (AI)-driven wireless innovation. Yet existing wireless AI corpora are slow to produce, offer limited modeling fidelity, and cover only narrow scenario types. To address the challenges, we create DeepTelecom, a three-dimension (3D) digital-twin channel dataset. Specifically, a large language model (LLM)-assisted pipeline first builds the third level of details (LoD3) outdoor and indoor scenes with segmentable mate…

Rec-RIR: Monaural Blind Room Impulse Response Identification via DNN-based Reverberant Speech Reconstruction in STFT Domain
Pengyu Wang, Xiaofei Li
https://arxiv.org/abs/2509.15628

Rec-RIR: Monaural Blind Room Impulse Response Identification via DNN-based Reverberant Speech Reconstruction in STFT Domain
Room impulse response (RIR) characterizes the complete propagation process of sound in an enclosed space. This paper presents Rec-RIR for monaural blind RIR identification. Rec-RIR is developed based on the convolutive transfer function (CTF) approximation, which models reverberation effect within narrow-band filter banks in the short-time Fourier transform (STFT) domain. Specifically, we propose a deep neural network (DNN) with cross-band and narrow-band blocks to estimate the CTF filter. The …

Any other creative ideas to get those branches up the hill? There are stairs. So wheelbarrow doesn't work. Also can't get down to the pathway as it's too narrow for a car.

Estimating profitable price bounds for prescriptive price optimization
Masato Inokuma, Shunnosuke Ikeda, Yuichi Takano
https://arxiv.org/abs/2508.15248 https://

Estimating profitable price bounds for prescriptive price optimization
Pricing of products and services, which has a significant impact on consumer demand, is one of the most important factors in maximizing business profits. Prescriptive price optimization is a prominent data-driven pricing methodology consisting of two phases: demand forecasting and price optimization. In the practice of prescriptive price optimization, the price of each item is typically set within a predetermined range defined by lower and upper bounds. Narrow price ranges can lead to missed op…

#WaterfallWednesday meets #ThrowbackThursday — the view from the narrow bridge inside the stunning/infamous Höllental (Hell's canyon), September 2021, almost to the day... ahhh, memories!

Formation of heavy double neutron stars I: Eddington-limited accretion for a 1.4 $M_{\odot}$ neutron star at solar metallicity
Ashwathi Nair, Simon Stevenson
https://arxiv.org/abs/2508.15624

Formation of heavy double neutron stars I: Eddington-limited accretion for a 1.4 $M_{\odot}$ neutron star at solar metallicity
More than 30 Galactic double neutron star (DNS) binaries have now been identified through radio pulsar timing. The 24 DNSs in the Galactic field with measured total masses lie in the narrow range of 2.3--2.9 $M_{\odot}$. In contrast, gravitational-wave observations have detected two DNS mergers: GW170817, with a total mass of 2.7 $M_{\odot}$, and GW190425, with a significantly higher mass of 3.4 $M_{\odot}$. The unusually high mass of GW190425 suggests a non-standard formation channel not repre…

Regularized Perturbation Theory for Ab initio Solids
Meng-Fu Chen, Jinghong Zhang, Hieu Q. Dinh, Adam Rettig, Joonho Lee
https://arxiv.org/abs/2508.15744 https://

Regularized Perturbation Theory for Ab initio Solids
Second-order Moller-Plesset perturbation theory (MP2) for ab initio simulations of solids is often limited by divergence or over-correlation issues, particularly in metallic, narrow-gap, and dispersion-stabilized systems. We develop and assess three regularized second-order perturbation theories: $κ$-MP2, $σ$-MP2, and the size-consistent Brillouin-Wigner approach (BW-s2), across metals, semiconductors, molecular crystals, and rare gas solids. BW-s2 achieves high accuracy for cohesive energies…

Ultrafast optically induced tunneling in narrow metallic gaps from the time dependent density functional perspective
Boyang Ma, Antton Babaze, Michael Kr\"uger, Javier Aizpurua, Andrei G. Borisov
https://arxiv.org/abs/2509.14802

Ultrafast optically induced tunneling in narrow metallic gaps from the time dependent density functional perspective
In this work, using the time-dependent density functional theory, we address the electron tunneling triggered by short (single-cycle and several-cycle) optical pulses in narrow metallic gaps under conditions relevant for actual experiments. We identify photon-assisted tunneling with one-photon, two-photon, and higher-order photon absorption, and we discuss the effect of the tunneling barrier, applied bias, and strength of the optical field on transition from photon-assisted tunneling (weak opti…

Moody Urbanity - Manmade Confinements ⛑️
情绪化城市 - 人造禁锢 ⛑️
📷 Pentax MX
🎞️ Kentmere Pan 400
#filmphotography #Photography #blackandwhite

Survey: 50% of newspaper columnists, 38% of BBC executives, and 45% of leading podcasters in Britain are privately educated, vs. 7% of the general population (Carl Cullinane/The Guardian)
https://www.theguardian.com/commentisfree/

Unveiling Trust in Multimodal Large Language Models: Evaluation, Analysis, and Mitigation
Yichi Zhang, Yao Huang, Yifan Wang, Yitong Sun, Chang Liu, Zhe Zhao, Zhengwei Fang, Huanran Chen, Xiao Yang, Xingxing Wei, Hang Su, Yinpeng Dong, Jun Zhu
https://arxiv.org/abs/2508.15370

Unveiling Trust in Multimodal Large Language Models: Evaluation, Analysis, and Mitigation
The trustworthiness of Multimodal Large Language Models (MLLMs) remains an intense concern despite the significant progress in their capabilities. Existing evaluation and mitigation approaches often focus on narrow aspects and overlook risks introduced by the multimodality. To tackle these challenges, we propose MultiTrust-X, a comprehensive benchmark for evaluating, analyzing, and mitigating the trustworthiness issues of MLLMs. We define a three-dimensional framework, encompassing five trustwo…

Replaced article(s) found for physics.atom-ph. https://arxiv.org/list/physics.atom-ph/new
[1/1]:
- Fault-tolerant dynamically-decoupled hyper-Ramsey spectroscopy of ultra-narrow clock transitions
T. Zanon-Willette, B. Ilikj, D. Wilkowski, B. Darqui\'e, N. V. Vitanov

Bias is a Math Problem, AI Bias is a Technical Problem: 10-year Literature Review of AI/LLM Bias Research Reveals Narrow [Gender-Centric] Conceptions of 'Bias', and Academia-Industry Gap
Sourojit Ghosh, Kyra Wilson
https://arxiv.org/abs/2508.11067

Bias is a Math Problem, AI Bias is a Technical Problem: 10-year Literature Review of AI/LLM Bias Research Reveals Narrow [Gender-Centric] Conceptions of 'Bias', and Academia-Industry Gap
The rapid development of AI tools and implementation of LLMs within downstream tasks has been paralleled by a surge in research exploring how the outputs of such AI/LLM systems embed biases, a research topic which was already being extensively explored before the era of ChatGPT. Given the high volume of research around the biases within the outputs of AI systems and LLMs, it is imperative to conduct systematic literature reviews to document throughlines within such research. In this paper, we c…

Integrated Telecom Wavelength Heralded Single-Photon Source based on GHz gated detectors
Maria Ana Pereira, Mingsong Wu, Arslan Sajid Raja, Rui Ning Wang, Tobias Kippenberg, Hugo Zbinden, Tiff Brydges, Rob Thew
https://arxiv.org/abs/2509.16049

Integrated Telecom Wavelength Heralded Single-Photon Source based on GHz gated detectors
We introduce a simple and flexible concept for a heralded -- spectrally pure -- single photon source. The scheme uses a probabilistic photon pair source pumped with a CW laser, whereby a rapid gating InGaAs/InP single photon avalanche diode provides a synchronous clock and temporally resolves, and hence spectrally filters, the heralded photons. We demonstrate the concept by combining this with a narrow-band integrated silicon nitride photon-pair source. This simple architecture is capable of he…

Last photos from that day in the #schwarzwald . We were pretty surprised when we came to the part shown in the last photo. The #moss was so thick there - like a real carpet! I've never seen such before. I found it pretty hard to get a photo that pays the situation justice. I hope it works for …

Near-Field Beam Training Through Beam Diverging
Ran Li, Ziyi Xu, Ying-Jun Angela Zhang
https://arxiv.org/abs/2509.16035 https://arxiv.org/pdf/2509.16035

Near-Field Beam Training Through Beam Diverging
This paper investigates beam training techniques for near-field (NF) extremely large-scale antenna arrays (ELAAs). Existing NF beam training methods predominantly rely on beam focusing, where the base station (BS) transmits highly spatially selective beams to locate the user equipment (UE). However, these beam-focusing-based schemes suffer from both high beam sweeping overhead and limited accuracy in the NF, primarily due to the narrow beams' high susceptibility to misalignment. To address this…

Hands-on with Tiramisu, Meta's "hyperrealistic" VR research prototype with beyond-retinal resolution, high brightness and contrast, and a narrow field of view (David Heaney/UploadVR)
https://www.uploadvr.com/meta-tiramisu-hyperrealistic-vr-hands-on/

Meta Tiramisu "Hyperrealistic VR" Hands-On: A Stunning Window Into Another World
At SIGGRAPH 2025, we also went hands-on with Tiramisu, Meta's prototype that combines beyond-retinal resolution, high brightness, and high contrast.

From Scores to Skills: A Cognitive Diagnosis Framework for Evaluating Financial Large Language Models
Ziyan Kuang, Feiyu Zhu, Maowei Jiang, Yanzhao Lai, Zelin Wang, Zhitong Wang, Meikang Qiu, Jiajia Huang, Min Peng, Qianqian Xie, Sophia Ananiadou
https://arxiv.org/abs/2508.13491

From Scores to Skills: A Cognitive Diagnosis Framework for Evaluating Financial Large Language Models
Large Language Models (LLMs) have shown promise for financial applications, yet their suitability for this high-stakes domain remains largely unproven due to inadequacies in existing benchmarks. Existing benchmarks solely rely on score-level evaluation, summarizing performance with a single score that obscures the nuanced understanding of what models truly know and their precise limitations. They also rely on datasets that cover only a narrow subset of financial concepts, while overlooking othe…

Raiders displayed improvement in several areas despite narrow defeat to 49ers https://www.raiders.com/news/raiders-displayed-improvement-despite-defeat-to-san-francisco-49ers

Non-Equilibrium Criticality-Enhanced Quantum Sensing with Superconducting Qubits
Hao Li, Yaoling Yang, Yun-Hao Shi, Zheng-An Wang, Ziting Wang, Jintao Li, Yipeng Zhang, Kui Zhao, Yue-Shan Xu, Cheng-Lin Deng, Yu Liu, Wei-Guo Ma, Tian-Ming Li, Jia-Chi Zhang, Cai-Ping Fang, Jia-Cheng Song, Hao-Tian Liu, Si-Yun Zhou, Zheng-He Liu, Bing-Jie Chen, Gui-Han Liang, Xiaohui Song, Zhongcheng Xiang, Kai Xu, Kaixuan Huang, Abolfazl Bayat, Heng Fan

Non-Equilibrium Criticality-Enhanced Quantum Sensing with Superconducting Qubits
Exploiting quantum features allows for estimating external parameters with precisions well beyond the capacity of classical sensors, a phenomenon known as quantum-enhanced precision. Quantum criticality has been identified as a resource for achieving such enhancements with respect to the probe size. However, they demand complex probe preparation and measurement and the achievable enhancement is ultimately restricted to narrow parameter regimes. On the other hand, non-equilibrium probes harness …

2025 Dallas Cowboys Show Strength in Narrow Loss to Philadelphia https://insidethestar.com/2025-dallas-cowboys-show-strength-in-narrow-loss-to-philadelphia

Dual-Arm Hierarchical Planning for Laboratory Automation: Vibratory Sieve Shaker Operations
Haoran Xiao, Xue Wang, Huimin Lu, Zhiwen Zeng, Zirui Guo, Ziqi Ni, Yicong Ye, Wei Dai
https://arxiv.org/abs/2509.14531

Dual-Arm Hierarchical Planning for Laboratory Automation: Vibratory Sieve Shaker Operations
This paper addresses the challenges of automating vibratory sieve shaker operations in a materials laboratory, focusing on three critical tasks: 1) dual-arm lid manipulation in 3 cm clearance spaces, 2) bimanual handover in overlapping workspaces, and 3) obstructed powder sample container delivery with orientation constraints. These tasks present significant challenges, including inefficient sampling in narrow passages, the need for smooth trajectories to prevent spillage, and suboptimal paths …

Sideband Spectroscopy in the Strong Driving Regime: Volcano Transparency and Sideband Anomaly
Luka Antonic, Sergey Hazanov, Sergei Masis, Daniel Podolsky, Eyal Buks
https://arxiv.org/abs/2508.14781

Sideband Spectroscopy in the Strong Driving Regime: Volcano Transparency and Sideband Anomaly
We study the response of a spin to two crossed magnetic fields: a strong and fast transverse field, and a weak and slow longitudinal field. We characterize the sideband response at the sum and the difference of driving frequencies over a broad range of parameters. In the strong transverse driving regime, the emission spectrum has a characteristic volcano lineshape with a narrow central transparency region surrounded by asymmetric peaks. Next, we couple the spin to a nonlinear cavity that both d…

Virtuous Machines: Towards Artificial General Science
Gabrielle Wehr, Reuben Rideaux, Amaya J. Fox, David R. Lightfoot, Jason Tangen, Jason B. Mattingley, Shane E. Ehrhardt
https://arxiv.org/abs/2508.13421

Virtuous Machines: Towards Artificial General Science
Artificial intelligence systems are transforming scientific discovery by accelerating specific research tasks, from protein structure prediction to materials design, yet remain confined to narrow domains requiring substantial human oversight. The exponential growth of scientific literature and increasing domain specialisation constrain researchers' capacity to synthesise knowledge across disciplines and develop unifying theories, motivating exploration of more general-purpose AI systems for sci…

😅 Wearable sensor could help patients with bipolar disorder track medication levels through sweat
https://medicalxpress.com/news/2025-07-wearable-sensor-patients-bipolar-disorder.html

Wearable sensor could help patients with bipolar disorder track medication levels through sweat
Although lithium is highly effective in treating bipolar disorder, the chemical has a narrow therapeutic window—too high a dose can be toxic to patients, causing kidney damage, thyroid damage, or even death, while too low a dose renders the treatment ineffective.

Keywords are not always the key: A metadata field analysis for natural language search on open data portals
Lisa-Yao Gan, Arunav Das, Johanna Walker, Elena Simperl
https://arxiv.org/abs/2509.14457

Keywords are not always the key: A metadata field analysis for natural language search on open data portals
Open data portals are essential for providing public access to open datasets. However, their search interfaces typically rely on keyword-based mechanisms and a narrow set of metadata fields. This design makes it difficult for users to find datasets using natural language queries. The problem is worsened by metadata that is often incomplete or inconsistent, especially when users lack familiarity with domain-specific terminology. In this paper, we examine how individual metadata fields affect the…

The BART dancers need to up their game. Currently on narrow gage railway with a 3 piece band playing in a sardine packed carriage.

Moody Urbanity - Manmade Confinements 🏗️
情绪化城市 - 人造禁锢 🏗️
📷 Pentax MX
🎞️ Kentmere Pan 400
#filmphotography #Photography #blackandwhite

DermINO: Hybrid Pretraining for a Versatile Dermatology Foundation Model
Jingkai Xu, De Cheng, Xiangqian Zhao, Jungang Yang, Zilong Wang, Xinyang Jiang, Xufang Luo, Lili Chen, Xiaoli Ning, Chengxu Li, Xinzhu Zhou, Xuejiao Song, Ang Li, Qingyue Xia, Zhou Zhuang, Hongfei Ouyang, Ke Xue, Yujun Sheng, Rusong Meng, Feng Xu, Xi Yang, Weimin Ma, Yusheng Lee, Dongsheng Li, Xinbo Gao, Jianming Liang, Lili Qiu, Nannan Wang, Xianbo Zuo, Cui Yong

DermINO: Hybrid Pretraining for a Versatile Dermatology Foundation Model
Skin diseases impose a substantial burden on global healthcare systems, driven by their high prevalence (affecting up to 70% of the population), complex diagnostic processes, and a critical shortage of dermatologists in resource-limited areas. While artificial intelligence(AI) tools have demonstrated promise in dermatological image analysis, current models face limitations-they often rely on large, manually labeled datasets and are built for narrow, specific tasks, making them less effective in…

Assembled a new potting table for Collette. Turned out nicely.
Collette has always had a passion for gardening, and has dramatically increased her gardening efforts post retirement. She’s been propagating roses this summer. Her first round she had about a 3% success rate. She’s learned and steadily improved the process. Latest batch - 40%. She has become a 10x gardener.
I’ve become a 10x furniture assembler.

The Lean project is looking for someone to work on a documentation tool for math/technical communication. This is likely to be very influential, so a chance for someone with the right skills to have great impact. See the announcement here:
https://

Public view of Lean | Zulip team chat
Browse the publicly accessible channels in Lean without logging in.

🇺🇦 #NowPlaying on #BBC6Music's #DonLettsCultureClashRadio
Werkha:
🎵 Narrow In (feat. Daudi Matsiko)
#Werkha
#newRelease 🆕 single
https://werkha.bandcamp.com/track/narrow-in-ft-daudi-matsiko
https://open.spotify.com/track/3YIucTbX3JZjqSeKkg8rrs

Jamming of active particles in narrow pores: Implications for ratchet effect and diffusion coefficient
\v{S}imon Pajger, Franti\v{s}ek Slanina
https://arxiv.org/abs/2508.10483 h…

Jamming of active particles in narrow pores: Implications for ratchet effect and diffusion coefficient
We study the behavior of colloidal active particles interacting via steric repulsion in various quasi-1D geometries. We mainly focus on active particles with high Péclet number. We discuss 3 phenomena closely tied to those systems: motility-induced phase separation (or dynamical freezing), ratchet effect (which takes place if the geometry has broken spatial symmetry), and the enhanced diffusion coefficient. We study those particles using numerical simulations employing an ASEP-like model. Besi…

Granular focused jet
Kazuya U. Kobayashi, Pradipto, Yoshiyuki Tagawa
https://arxiv.org/abs/2508.11905 https://arxiv.org/pdf/2508.11905

Granular focused jet
We investigated the formation of granular focused jets defined as narrow upward ejections of grains triggered by impulsive forces and shaped by kinematic focusing on a concave free surface. The jets were generated from nonfluidized granular beds, in contrast to existing granular Worthington jets that originate from fluidized layers. To elucidate the jet dynamics, we performed experiments in which a test tube partially filled with dry glass beads was dropped onto a flat rigid floor, systematical…

Defects4Log: Benchmarking LLMs for Logging Code Defect Detection and Reasoning
Xin Wang, Zhenhao Li, Zishuo Ding
https://arxiv.org/abs/2508.11305 https://a…

Defects4Log: Benchmarking LLMs for Logging Code Defect Detection and Reasoning
Logging code is written by developers to capture system runtime behavior and plays a vital role in debugging, performance analysis, and system monitoring. However, defects in logging code can undermine the usefulness of logs and lead to misinterpretations. Although prior work has identified several logging defect patterns and provided valuable insights into logging practices, these studies often focus on a narrow range of defect patterns derived from limited sources (e.g., commit histories) and…

Origin of the double-peaked narrow emission-lines in the optical spectra of X-shaped Radio Galaxies
Prajnadipt Ghosh (IIA), Ravi Joshi, Xiaolong Yang, Yingkang Zhang, Gopal-Krishna, Paul J. Wiita, Ankit Patel, Arti Goyal, Gourab Giri, Santanu Mondal, Vibhore Negi, Marek Wezgowiec, Xue-Bing Wu, Luis C. Ho
https://arxiv.org/abs/2509.12312…

Origin of the double-peaked narrow emission-lines in the optical spectra of X-shaped Radio Galaxies
We investigate the X-shaped radio galaxies (XRGs) with optical double-peaked narrow emission (DPNEL) as potential hosts of dual or binary supermassive black holes (SMBHs). Using a sample of 187 XRGs selected from SDSS and DESI optical spectroscopic surveys, we check the AGN nature of both emission components using the BPT diagnostics of multiple emission lines, namely {[O III]$λλ$4959,5007}, H$α$, {[N II]$λλ$6548,6584}, {[S II]$λλ$6716,6731}, and H$β$, and mid-infrared colors. We find t…

An in-depth look at approximation via deep and narrow neural networks
Joris Dommel, Sven A. Wegner
https://arxiv.org/abs/2510.07202 https://arxiv.org/pdf/2…

An in-depth look at approximation via deep and narrow neural networks
In 2017, Hanin and Sellke showed that the class of arbitrarily deep, real-valued, feed-forward and ReLU-activated networks of width w forms a dense subset of the space of continuous functions on R^n, with respect to the topology of uniform convergence on compact sets, if and only if w>n holds. To show the necessity, a concrete counterexample function f:R^n->R was used. In this note we actually approximate this very f by neural networks in the two cases w=n and w=n+1 around the aforementioned th…

Matsuo Basho (1644–1694) lived his peculiar life on the conviction that
art could create an awareness that allowed one to see into and communicate the essence of experience.
Throughout his life he searched for the state of being one with the object of his poems,
something he believed a poet needed to reach in order to write truthfully.
This life-long search brought Basho to wandering.
He thought that travelling would lead to a state of karumi (lightness), ess…

In Basho’s Footsteps: Hiking the Narrow Road to the Deep North Three Centuries Later
Matsuo Basho (1644–1694) lived his peculiar life on the conviction that art could create an awareness that allowed one to see into and communicate the essence of experience.

@… Thanks, good points! Yeah, you’re right, that's not what auto-revert-mode is for. I’ll have another look and try to narrow down the problem.

@… Thanks, good points! Yeah, you’re right, that's not what auto-revert-mode is for. I’ll have another look and try to narrow down the problem.

MLLM as a UI Judge: Benchmarking Multimodal LLMs for Predicting Human Perception of User Interfaces
Reuben A. Luera, Ryan Rossi, Franck Dernoncourt, Samyadeep Basu, Sungchul Kim, Subhojyoti Mukherjee, Puneet Mathur, Ruiyi Zhang, Jihyung Kil, Nedim Lipka, Seunghyun Yoon, Jiuxiang Gu, Zichao Wang, Cindy Xiong Bearfield, Branislav Kveton
https://

MLLM as a UI Judge: Benchmarking Multimodal LLMs for Predicting Human Perception of User Interfaces
In an ideal design pipeline, user interface (UI) design is intertwined with user research to validate decisions, yet studies are often resource-constrained during early exploration. Recent advances in multimodal large language models (MLLMs) offer a promising opportunity to act as early evaluators, helping designers narrow options before formal testing. Unlike prior work that emphasizes user behavior in narrow domains such as e-commerce with metrics like clicks or conversions, we focus on subje…

Peace & solitude on the Kessel ridge, the rim of a large doline funnel in the Ammergau Alps.
#SilentSunday #LandscapePhotography #Photography

Towards Closing the Performance Gap for Cryptographic Kernels Between CPUs and Specialized Hardware
Naifeng Zhang, Sophia Fu, Franz Franchetti
https://arxiv.org/abs/2509.12494 h…

Towards Closing the Performance Gap for Cryptographic Kernels Between CPUs and Specialized Hardware
Specialized hardware like application-specific integrated circuits (ASICs) remains the primary accelerator type for cryptographic kernels based on large integer arithmetic. Prior work has shown that commodity and server-class GPUs can achieve near-ASIC performance for these workloads. However, achieving comparable performance on CPUs remains an open challenge. This work investigates the following question: How can we narrow the performance gap between CPUs and specialized hardware for key crypt…

CrafterDojo: A Suite of Foundation Models for Building Open-Ended Embodied Agents in Crafter
Junyeong Park, Hyeonseo Cho, Sungjin Ahn
https://arxiv.org/abs/2508.13530 https://…

CrafterDojo: A Suite of Foundation Models for Building Open-Ended Embodied Agents in Crafter
Developing general-purpose embodied agents is a core challenge in AI. Minecraft provides rich complexity and internet-scale data, but its slow speed and engineering overhead make it unsuitable for rapid prototyping. Crafter offers a lightweight alternative that retains key challenges from Minecraft, yet its use has remained limited to narrow tasks due to the absence of foundation models that have driven progress in the Minecraft setting. In this paper, we present CrafterDojo, a suite of foundat…

Ferromagnetism vs. Antiferromagnetism in Narrow-Band Systems: Competition Between Quantum Geometry and Band Dispersion
Haoyu Hu, Oskar Vafek, Kristjan Haule, B. Andrei Bernevig
https://arxiv.org/abs/2509.03575

Ferromagnetism vs. Antiferromagnetism in Narrow-Band Systems: Competition Between Quantum Geometry and Band Dispersion
Magnetism in narrow-band systems arises from the interplay between electronic correlations, quantum geometry, and band dispersion. In particular, both ferro and anti-ferro magnets are known to occur as ground states of (different) models featuring narrow bands. This poses the question of which is favored and under what conditions. In this work, we present a unified theoretical framework to investigate spin physics within narrow bands. By deriving an effective spin model, we show that the non-at…

At this point again where I have no serial console but a display only and the kernel I built from the vendor sources appears to crash or smth, causing a reset. So I add infinite loops early in the kernel to narrow down where it happens. Thus far, we made it into init/main.c past mm_init().

Fabry-Perot interference in three dimensional second-order topological insulator constrictions
Junyu Luo, Kun Luo
https://arxiv.org/abs/2508.12655 https://…

Fabry-Perot interference in three dimensional second-order topological insulator constrictions
The gapless chiral hinge states of three dimensional second-order topological insulators (SOTIs) support a quantized conductance plateau on thick nanowire. Here, we numerical study the conductance of SOTI constrictions. According to finite size effects, the hinge states in narrow region could be hybridized, which will induce reflection at the two ends of constrictions. The conductance exists the Fabry-Perot oscillation pattern because of multiple reflections. We also study the impact of the mag…

AIP: Subverting Retrieval-Augmented Generation via Adversarial Instructional Prompt
Saket S. Chaturvedi, Gaurav Bagwe, Lan Zhang, Xiaoyong Yuan
https://arxiv.org/abs/2509.15159 …

AIP: Subverting Retrieval-Augmented Generation via Adversarial Instructional Prompt
Retrieval-Augmented Generation (RAG) enhances large language models (LLMs) by retrieving relevant documents from external sources to improve factual accuracy and verifiability. However, this reliance introduces new attack surfaces within the retrieval pipeline, beyond the LLM itself. While prior RAG attacks have exposed such vulnerabilities, they largely rely on manipulating user queries, which is often infeasible in practice due to fixed or protected user inputs. This narrow focus overlooks a …

High-power monolithic narrow-linewidth 1.6 mJ/8 ns fiber laser system based on all-glass spun tapered double-clad fiber amplifier
Hossein Fathi, Uttam Samanta, Evgenii Motorin, Ebrahim Aghayari, Andrey Grishchenko, Matias Koivurova, Regina Gumenyuk, Valery Filippov
https://arxiv.org/abs/2508.06989 …

High-power monolithic narrow-linewidth 1.6 mJ/8 ns fiber laser system based on all-glass spun tapered double-clad fiber amplifier
High-energy, narrow-linewidth nanosecond pulses are highly demanding for many applications that require high temporal and spatial coherence. However, the amplification of narrow-linewidth pulses is primarily limited by stimulated Brillouin scattering, which causes pulse instabilities, back-reflected pulses, and catastrophic damage effects on optical components. In this work, we present a 1.6 mJ narrow-linewidth nanosecond pulsed fiber laser system based on all-glass spun tapered double-clad fib…

@… *eyes narrow*

Graffiti written on sand. I think there’s a metaphor here struggling to get out…
#photography #graffiti

"Women in Mexico step up to protect the island farms traditionally inherited by men"
#Mexico #Women

Women in Mexico step up to protect the island farms traditionally inherited by men
This story is a collaboration between The Associated Press and Mongabay. MEXICO CITY, Mexico — Jasmín Ordóñez looks out at the water as the wooden boat she is in crosses a narrow channel that connects a labyrinth of chinampas, island farms that were built by the Aztecs thousands of years ago. “Let’s close our eyes […]

Sparse Narrow-Band Topology Optimization for Large-Scale Thermal-Fluid Applications
Vladislav Pimanov, Alexandre T. R. Guibert, John-Paul Sabino, Michael Stoia, H. Alicia Kim
https://arxiv.org/abs/2508.04261

Sparse Narrow-Band Topology Optimization for Large-Scale Thermal-Fluid Applications
We propose a fluid-based topology-optimization methodology for convective heat-transfer problems that can manage an extensive number of design variables, enabling the fine geometric features required for the next generation of heat-exchanger designs. Building on the classical Borrvall--Petersson formulation for Stokes flow, we develop a narrow-band optimization algorithm that concentrates computational effort on the fluid--solid interface, where it is most needed. To address the high cost of re…

UniPar: A Unified LLM-Based Framework for Parallel and Accelerated Code Translation in HPC
Tomer Bitan, Tal Kadosh, Erel Kaplan, Shira Meiri, Le Chen, Peter Morales, Niranjan Hasabnis, Gal Oren
https://arxiv.org/abs/2509.12136

UniPar: A Unified LLM-Based Framework for Parallel and Accelerated Code Translation in HPC
Translating programs between various parallel programming languages is an important problem in the high-performance computing (HPC) community. Existing tools for this problem are either too narrow in scope and/or outdated. Recent explosive growth in the popularity of large language models (LLMs) and their ability to generate and translate code offers a potential alternative approach. Toward that end, we first need to systematically evaluate the ability of LLMs to translate between parallel lang…

Lego table is coming along. The center piece is done. And ready to be finished. I need to make the legs for both sides (4x) and the two leaves.
We have a good idea on the finish. The "walnut" color on the top right is so far the preference.
#woodworking
#inprogress

These forces that make people narrow themselves, avoid humanities, avoid mathematics, avoid whole ways of thinking and seeing…these forces aren’t only people being assholes to each other (though they are that). They’re hierarchy-making and pernicious social engineering. Fight back.

i accidentally left my camera on zoom when i took this photo earlier. it looks like AI generated, but it ain't.
#train #steamTrain

Democrats Narrow Gap in House After Victory in Virginia Special Election (Reid J. Epstein/New York Times)
https://www.nytimes.com/2025/09/09/us/politics/james-walkinshaw-virginia-house.html
http://www.memeorandum.com/250909/p169#a250909p169

From pass to pass...
#FootpathFriday #LandscapePhotography #NaturePhotography #Alps

A New Population of Point-like, Narrow-line Objects Revealed by the James Webb Space Telescope
Haojing Yan (University of Missouri-Columbia), Bangzheng Sun (University of Missouri-Columbia), Riley Shive (University of Missouri-Columbia)
https://arxiv.org/abs/2509.12177

A New Population of Point-like, Narrow-line Objects Revealed by the James Webb Space Telescope
We report a new population of objects discovered using the data from the James Webb Space Telescope, which are characterized by their point-like morphology and narrow permitted emission lines. Our sample includes nine objects found in three JWST wide survey fields, which have z=3.624 to 5.378 and M_B ~ -18.3 to -21.4 mag. Their light distributions follow gaussian profiles, with the full-width-at-half-maximum (FWHM) values only 3.7%--34.6% larger than those of the point spread functions. Their s…

KAIO: A Collection of More Challenging Korean Questions
Nahyun Lee, Guijin Son, Hyunwoo Ko, Kyubeen Han
https://arxiv.org/abs/2509.14752 https://arxiv.org/…

KAIO: A Collection of More Challenging Korean Questions
With the advancement of mid/post-training techniques, LLMs are pushing their boundaries at an accelerated pace. Legacy benchmarks saturate quickly (e.g., broad suites like MMLU over the years, newer ones like GPQA-D even faster), which makes frontier progress hard to track. The problem is especially acute in Korean: widely used benchmarks are fewer, often translated or narrow in scope, and updated more slowly, so saturation and contamination arrive sooner. Accordingly, at this moment, there is …

Late-time Hubble Space Telescope Ultraviolet Spectra of SN 2023ixf and SN 2024ggi Show Ongoing Interaction with Circumstellar Material
K. Azalee Bostroem, Stefano Valenti, David J. Sand, Jeniveve Pearson, Manisha Shrestha, Jennifer E. Andrews, Luc Dessart, W. V. Jacobson-Galan, Brian Hsu, Aravind P. Ravi, Moira Andrews, Collin Christy, Yize Dong, Noah Franz, Joseph Farah, Alexei V. Filippenko, Kiranjyot Gill, Emily T. Hoang, Griffin Hosseinzadeh, D. Andrew Howell, Daryl Janzen, Jacob E…

Late-time Hubble Space Telescope Ultraviolet Spectra of SN 2023ixf and SN 2024ggi Show Ongoing Interaction with Circumstellar Material
We present far- and near-ultraviolet (UV) spectra of the Type II supernovae (SNe) SN~2023ixf from days 199 to 722 and SN~2024ggi at days 41 and 232. Both supernovae show broad, blueshifted, and asymmetric UV emission lines with an initial maximum velocity of $\sim9000\,km\,s^{-1}$ and narrow unresolved emission in CIV. We compare the optical and UV emission-line profiles, showing that they evolve from two distinct velocity profiles to a single profile tracing the UV emission. We interpret this …

Hey guys! two more #schwarzwald #photos! And I found them a perfect fit for #FootpathFriday as well.
This day's hike was so diverse. narrow trails, ferns and moss, a lake, some heat…

Hydrodynamic approximations for driven dense colloidal mixtures in narrow pores
Frantisek Slanina, Miroslav Kotrla
https://arxiv.org/abs/2508.09686 https://

Hydrodynamic approximations for driven dense colloidal mixtures in narrow pores
The system of driven dense colloid mixtures is studied in one-, two- and three-dimensional geometries. We calculate the diffusion coefficients and mobilities for each particle type, including cross-terms, in a hydrodynamic limit, using a mean-field-type approximation. The set of non-linear diffusion equations are then solved. In one dimension, analytical results are possible. We show that in mixtures, the ``Brazil nut'' phenomenon, or depletion of larger particles by force of smaller ones, appe…

Negative gas-phase metallicity gradients in the narrow line region and galactic disc of local AGN-host galaxies
Amirnezam Amiri, Johan H. Knapen, Bret D. Lehmer, Amirhossein Khoram
https://arxiv.org/abs/2509.12156

Negative gas-phase metallicity gradients in the narrow line region and galactic disc of local AGN-host galaxies
The gas-phase metallicity distribution in galaxies provides significant information on their evolution. We report the discovery of nega- tive radial gradients in the gas-phase metallicity of the narrow-line region of the nine galaxies in the Measuring Active Galactic Nuclei Under MUSE Microscope (MAGNUM) galaxies: Centaurus A, Circinus, IC 5063, NGC 1068, NGC 1365, NGC 1386, NGC 2992, NGC 4945, NGC 5643. From strong-line abundance relations for active galactic nuclei (AGN) and star-forming regi…

Purple and white Cosmos Flower with a very narrow depth of field that turns the background into a psychedelic field of green and brown smudges and white sparkles
#photo #photography #flowers

BenchECG and xECG: a benchmark and baseline for ECG foundation models
Riccardo Lunelli, Angus Nicolson, Samuel Martin Pr\"oll, Sebastian Johannes Reinstadler, Axel Bauer, Clemens Dlaska
https://arxiv.org/abs/2509.10151

BenchECG and xECG: a benchmark and baseline for ECG foundation models
Electrocardiograms (ECGs) are inexpensive, widely used, and well-suited to deep learning. Recently, interest has grown in developing foundation models for ECGs - models that generalise across diverse downstream tasks. However, consistent evaluation has been lacking: prior work often uses narrow task selections and inconsistent datasets, hindering fair comparison. Here, we introduce BenchECG, a standardised benchmark comprising a comprehensive suite of publicly available ECG datasets and versati…

Embodied Navigation Foundation Model
Jiazhao Zhang, Anqi Li, Yunpeng Qi, Minghan Li, Jiahang Liu, Shaoan Wang, Haoran Liu, Gengze Zhou, Yuze Wu, Xingxing Li, Yuxin Fan, Wenjun Li, Zhibo Chen, Fei Gao, Qi Wu, Zhizheng Zhang, He Wang
https://arxiv.org/abs/2509.12129

Embodied Navigation Foundation Model
Navigation is a fundamental capability in embodied AI, representing the intelligence required to perceive and interact within physical environments following language instructions. Despite significant progress in large Vision-Language Models (VLMs), which exhibit remarkable zero-shot performance on general vision-language tasks, their generalization ability in embodied navigation remains largely confined to narrow task settings and embodiment-specific architectures. In this work, we introduce a…

Thermal states emerging from low-entanglement background in disordered spin models
Yule Ma, Qianqian Chen, Mingyang Li, Zlatko Papi\'c, Zheng Zhu
https://arxiv.org/abs/2509.13420

Thermal states emerging from low-entanglement background in disordered spin models
Thermalization in isolated quantum systems is governed by the eigenstate thermalization hypothesis, while strong disorder can induce its breakdown via many-body localization. Here we show that disorder can also generate a narrow band of thermal eigenstates embedded in an otherwise non-thermal spectrum. We illustrate this generic mechanism using paradigmatic spin-1 models, including Heisenberg, XY, and Affleck-Kennedy-Lieb-Tasaki (AKLT) models with several types of disorder. By analyzing their l…

Hey friends, sorry to be so silent again. Busy life - but nothing bad.
Just wanted to share this photo with you :
THIS was the narrowest passage ahead. It's just this and around the corner, after this it widens up again. And I can promise: it does not just look narrow - it really IS.
I admit that I thought "ohkay, I did NOT expect that and I hope it won't get worse".
(it didn't and it was fun after all)

Agentic UAVs: LLM-Driven Autonomy with Integrated Tool-Calling and Cognitive Reasoning
Anis Koubaa, Khaled Gabr
https://arxiv.org/abs/2509.13352 https://ar…

Agentic UAVs: LLM-Driven Autonomy with Integrated Tool-Calling and Cognitive Reasoning
Unmanned Aerial Vehicles (UAVs) are increasingly deployed in defense, surveillance, and disaster response, yet most systems remain confined to SAE Level 2--3 autonomy. Their reliance on rule-based control and narrow AI restricts adaptability in dynamic, uncertain missions. Existing UAV frameworks lack context-aware reasoning, autonomous decision-making, and ecosystem-level integration; critically, none leverage Large Language Model (LLM) agents with tool-calling for real-time knowledge access. …

Stephen Jones reveals status of Cowboys CB DaRon Bland for Week 3 vs Chicago Bears https://www.si.com/nfl/cowboys/news/stephen-jones-reveals-status-dallas-cowboys-daron-bland-week-3-chicago-bears

Short-range and long-range correlations in driven dense colloidal mixtures in narrow pores
Frantisek Slanina, Miroslav Kotrla, Karel Netocny
https://arxiv.org/abs/2508.09718 htt…

Short-range and long-range correlations in driven dense colloidal mixtures in narrow pores
The system of driven dense colloid mixture in a tube with diameter comparable with particle size is modeled by a generalization of asymmetric simple exclusion (ASEP) model. The generalization goes in two directions: relaxing the exclusion constraint by allowing several (but few) particles on a site, and by considering two species of particles, which differ by size and transport coefficients. We calculate the nearest-neighbor correlations using a variant of Kirkwood approximation and show by com…

SN 2021aaev: a Hydrogen-Rich Superluminous Supernova with Early Flash and Long-Lived Circumstellar Interaction in an Unusual Host Environment
Yang Hu, Ragnhild Lunnan, Priscila J. Pessi, Alberto Saldana-Lopez, Anders Jerkstrand, Jesper Sollerman, Steve Schulze, Joseph P. Anderson, Se\'an J. Brennan, Stefano P. Cosentino, Anjasha Gangopadhyay, Anamaria Gkini, Mariusz Gromadzki, Matthew J. Hayes, Cosimo Inserra, Tom\'as E. M\"uller-Bravo, Matt Nicholl, Giuliano Pignata, Avin…

SN 2021aaev: a Hydrogen-Rich Superluminous Supernova with Early Flash and Long-Lived Circumstellar Interaction in an Unusual Host Environment
We present photometric and spectroscopic observations of SN\,2021aaev, a hydrogen-rich, superluminous supernova with persistent (at least $\sim100$ days) narrow Balmer lines (SLSN-IIn) at redshift $z=0.1557$. We observed SN\,2021aaev to rise in $32.5 \pm 1.0$ days since first light and reach a peak absolute magnitude of $-21.46 \pm 0.01$ in the ATLAS $o$ band. The pre-peak spectra resemble those of typical SNe IIn with flash-ionization features arising from the interaction with a dense, confine…

Association of cold gas, massive galaxies, and AGNs in a filamentary protocluster traced by triple narrow-band imaging
Kazuki Daikuhara, Tadayuki Kodama, Haruka Kusakabe, Charles C. Steidel, Ichi Tanaka, Satoshi Kikuta, Hideki Umehata, Rhythm Shimakawa, Yusei Koyama, Kentaro Motohara, Masahiro Konishi, Jose Manuel Perez Martinez, Mariko Kubo, Dawn Erb, Kosuke Takahashi, Keita Fukushima

Association of cold gas, massive galaxies, and AGNs in a filamentary protocluster traced by triple narrow-band imaging
We investigate galaxy populations in the HS1700+64 protocluster at $z=2.30$, characterized by two prominent linear filaments traced by spatially extended Ly$α$ blobs. We conducted a wide area mapping of emission line galaxies across the protocluster using the unique combination of three matched narrow-band filters, corresponding to Ly$α$, H$α$, and [OIII] emission lines at $z=2.30$. We find that H$α$ emitters are strongly clustered at the intersection of the filaments, suggesting a protoclu…

Belated #MountainMonday ... Ever been in a place which made you feel you're maybe walking in dream (and it's not a nightmare)? This picture absolutely summarizes why I love the mountains the most in October...
(Had to de-saturate the colors because of polarization filter used, otherwise only slightly cropped and minutely raised shadows)

Ratchet effect and jamming in dense mixtures of active and passive colloids in narrow pores
Frantisek Slanina, Miroslav Kotrla
https://arxiv.org/abs/2508.09672 https://

Ratchet effect and jamming in dense mixtures of active and passive colloids in narrow pores
Using the framework of generalized exclusion processes we study mixtures of passive and active particles interacting by steric repulsion. The particles move in a pore with periodically modulated aperture, which is modeled by a quasi-one-dimensional channel with periodic tooth-shaped profile. Internal driving of the active particles induces a ratchet current of these particles. In the current-density diagram, we observe three main regimes: of free flow; of thermally activated processes; of spino…

Traversing the Narrow Path: A Two-Stage Reinforcement Learning Framework for Humanoid Beam Walking
TianChen Huang, Wei Gao, Runchen Xu, Shiwu Zhang
https://arxiv.org/abs/2508.20661

Traversing the Narrow Path: A Two-Stage Reinforcement Learning Framework for Humanoid Beam Walking
Traversing narrow beams is challenging for humanoids due to sparse, safety-critical contacts and the fragility of purely learned policies. We propose a physically grounded, two-stage framework that couples an XCoM/LIPM footstep template with a lightweight residual planner and a simple low-level tracker. Stage-1 is trained on flat ground: the tracker learns to robustly follow footstep targets by adding small random perturbations to heuristic footsteps, without any hand-crafted centerline locking…

IVEBench: Modern Benchmark Suite for Instruction-Guided Video Editing Assessment
Yinan Chen, Jiangning Zhang, Teng Hu, Yuxiang Zeng, Zhucun Xue, Qingdong He, Chengjie Wang, Yong Liu, Xiaobin Hu, Shuicheng Yan
https://arxiv.org/abs/2510.11647

IVEBench: Modern Benchmark Suite for Instruction-Guided Video Editing Assessment
Instruction-guided video editing has emerged as a rapidly advancing research direction, offering new opportunities for intuitive content transformation while also posing significant challenges for systematic evaluation. Existing video editing benchmarks fail to support the evaluation of instruction-guided video editing adequately and further suffer from limited source diversity, narrow task coverage and incomplete evaluation metrics. To address the above limitations, we introduce IVEBench, a mo…

JWST Spectroscopy of SN Ia 2022aaiq and 2024gy: Evidence for Enhanced Central Stable Ni Abundance and a Deflagration-to-Detonation Transition
Lindsey A. Kwok, Chang Liu, Saurabh W. Jha, St\'ephane Blondin, Conor Larison, Adam A. Miller, Mi Dai, Ryan J. Foley, Alexei V. Filippenko, Moira Andrews, Jennifer E. Andrews, Katie Auchettl, Carles Badenes, Thomas G. Brink, Kyle W. Davis, Andreas Fl\"ors, Llu\'is Galbany, Estefania Padilla Gonzalez, D. Andrew Howell, Sahana Kumar, R…

JWST Spectroscopy of SN Ia 2022aaiq and 2024gy: Evidence for Enhanced Central Stable Ni Abundance and a Deflagration-to-Detonation Transition
We present optical + near-infrared (NIR) + mid-infrared (MIR) observations of the normal Type~Ia supernovae (SN Ia) 2022aaiq and 2024gy in the nebular phase, continuously spanning 0.35--28 microns. Medium-resolution JWST spectroscopy reveals novel narrow ($v_{\mathrm{FWHM}}<1500$ km s$^{-1}$) [Ni II] 1.94 and 6.64 micron cores in both events. The MIR [Ni II] 6.64 micron line exhibits a distinct narrow core atop a broader base, indicating a central enhancement of stable Ni. This structure points…

Environmental Regulation of Dust and Star Formation Unveiled by Subaru Dual Narrow-band Imaging: Degree-scale Balmer Decrement Mapping across a z = 0.9 Supercluster
Zhaoran Liu, Tadayuki Kodama, Brian C. Lemaux, Mariko Kubo, Jose Manuel P\'erez-Mart\'inez, Yusei Koyama, Ichi Tanaka, Kazuki Daikuhara, Roy R. Gal, Denise Hung, Masahiro Konishi, Kosuke Kushibiki, Ronaldo Laishram, Lori M. Lubin, Kentaro Motohara, Hidenori Takahashi

Environmental Regulation of Dust and Star Formation Unveiled by Subaru Dual Narrow-band Imaging: Degree-scale Balmer Decrement Mapping across a z = 0.9 Supercluster
We present results from a dual narrow-band imaging survey targeting the CL1604 supercluster at z = 0.9 using the Subaru Telescope. By combining the NB921 filter on HSC and the NB1244 filter on SWIMS, we can detect redshifted H$α$ and H$β$ emission lines from the supercluster. This unique technique allows us to measure both star formation rates and dust extinction for a sample of 94 emission-line galaxies across the supercluster. We find that dust extinction, estimated from the Balmer decremen…

Ridges are my thing, 360 views...
(Ammergauer Alps, November 2024)
#FootpathFriday #LandscapePhotography #Alps

MAPGD: Multi-Agent Prompt Gradient Descent for Collaborative Prompt Optimization
Yichen Han, Bojun Liu, Zhengpeng zhou, Guanyu Liu, Zeng Zhang, Yang Yang, Wenli Wang, Isaac N Shi, Yunyan, Lewei He, Tianyu Shi
https://arxiv.org/abs/2509.11361

MAPGD: Multi-Agent Prompt Gradient Descent for Collaborative Prompt Optimization
Prompt engineering is crucial for leveraging large language models (LLMs), but existing methods often rely on a single optimization trajectory, limiting adaptability and efficiency while suffering from narrow perspectives, gradient conflicts, and high computational cost. We propose MAPGD (Multi-Agent Prompt Gradient Descent), a framework integrating multi-agent collaboration with gradient-based optimization. MAPGD features specialized agents for task clarity, example selection, format design, a…

A Sharper View of the X-ray Spectrum of MCG--6-30-15 with XRISM, XMM-Newton and NuSTAR
Laura W. Brenneman, Daniel R. Wilkins, Anna Ogorza{\l}ek, Daniele Rogantini, Andrew C. Fabian, Javier A. Garc\'ia, Anna Jur\'a\v{n}ov\'a, Misaki Mizumoto, Hirofumi Noda, Ehud Behar, Rozenn Boissay-Malaquin, Matteo Guainazzi, Takashi Okajima, Erika Hoffman, Noa Keshet, Jelle Kaastra, Erin Kara, Makoto Yamauchi

A Sharper View of the X-ray Spectrum of MCG--6-30-15 with XRISM, XMM-Newton and NuSTAR
We present a time-averaged spectral analysis of the 2024 XRISM observation of the narrow-line Seyfert-1 galaxy MCG--6-30-15, taken contemporaneously with XMM-Newton and NuSTAR. Our analysis leverages a unique combination of broadband and high-resolution X-ray spectroscopy to definitively isolate and characterize both broad and narrow emission and absorption features in this source. The best-fitting model for the joint spectral analysis is very well described by reflection from the inner accreti…

First post of our vacation in the #schwarzwald . Already on the way to our stay, we made a stop to visit the Laichinger Tiefenhöhle cave!
https://www.franzgraf.de/blog…

Discovering Laichingen’s Shaft Cave on our way to the Black Forest
On our trip to Baiersbronn in the Black Forest, we broke up the long drive with a fascinating stop at Tiefenhöhle Laichingen. This unique shaft cave, Germany’s deepest show cave, offered an unforgettable descent beneath the earth through narrow passages and steep stairs before we continued to begin

Cosmic-ray impact on optical and mid-infrared emission line diagnostics in NGC 5728
E. Koutsoumpou, J. A. Fern\'andez-Ontiveros, K. M. Dasyra, L. Spinoglio
https://arxiv.org/abs/2509.14328

Cosmic-ray impact on optical and mid-infrared emission line diagnostics in NGC 5728
Cosmic rays (CRs), from active galactic nuclei (AGN) jets and supernovae (SNe), serve as a significant feedback mechanism influencing emission lines in narrow line region (NLR) clouds. These highly energetic particles, propelled by shocks, heat the interstellar medium (ISM) and modify its chemical composition. This study investigates the role of CRs, particularly in their ability to excite gas and align with observed line ratios across UV and optical diagnostics. We employ CLOUDY to explore CR …

PEARLS: Globular Clusters and Ultra-Compact Dwarfs in the El Gordo Galaxies at z=0.87
William E. Harris, Marta Reina-Campos, Anton M. Koekemoer, Jessica M. Berkheimer, Timothy Carleton, Seth H. Cohen, Brenda L. Frye, Tyler R. Hinrichs, Benne W. Holwerda, Rachel Honor, Massimo Ricotti, S. P. Willner, Rogier A. Windhorst, Haojin Yan
https://…

PEARLS: Globular Clusters and Ultra-Compact Dwarfs in the El Gordo Galaxies at z=0.87
JWST/NIRCam 0.9 to 2.0 micron images reveal a population of point sources around the major galaxies in the El Gordo cluster at redshift z=0.87. Their distribution in the color--magnitude diagrams shows a narrow sequence well separated from field-galaxy contamination and consistent with their identification as ultra-compact dwarf galaxies (UCDs) or luminous globular clusters (GCs). The point-source sequence is more luminous by almost a magnitude than the corresponding sequence in Abell 2744 at z…

hey! here are the last four #photos from our walk in the #schwarzwald . There were some pretty beautyful trails and - also a little blister-issue. But thanks to being prepared, it was easy to fix and we could enjoy the rest of the walk.
Some more photos and a short clip are on the blog:

A test of Ca ii H & K photometry for isolating massive globular clusters below the metallicity floor
Bas van Heumen, William E. Harris, S{\o}ren S. Larsen, Else Starkenburg
https://arxiv.org/abs/2508.13031

A test of Ca ii H & K photometry for isolating massive globular clusters below the metallicity floor
The serendipitous discovery of the M31 globular cluster (GC) EXT8 has presented a significant challenge to current theories for GC formation. By finding other GCs similar to EXT8, it should become clear if and/or how EXT8 can fit into our current understanding of GC formation. We aim to test the potential of integrated-light narrow-band Ca II H & K photometry as a proxy for the metallicity of GCs to be able to provide effective candidate selection for massive GCs below the GC metallicity floor …

JWST NIRCam Imaging of NGC 4258: I. Observation Overview
Travis C. Fischer, Nicholas F. Cothard, Omnarayani Nayak, Henrique Schmitt, Erin Smith, Jason Glenn
https://arxiv.org/abs/2508.11044

JWST NIRCam Imaging of NGC 4258: I. Observation Overview
We present James Webb Space Telescope (JWST) NIRCam imaging of the nearby Seyfert 1.9 galaxy NGC 4258, which hosts strong star formation regions as well as an anomalous jet-like radio structure that extends through a significant portion of its disk. This galaxy provides a unique environment to study Active Galactic Nucleus (AGN)-driven shocks and their impact on the interstellar medium (ISM) as its proximity allows for narrow-band observations of various near-infrared tracers sensitive to multi…