Tootfinder

🩻 Pictures from Paper Reflections and a Single Pixel
#makers

Pictures From Paper Reflections And A Single Pixel
Taking a picture with a single photoresistor is a brain-breaking idea. But go deeper and imagine taking that same picture with the same photoresistor, but without even facing the object. [Jon Bumst…

Look at the crowds shadows there under the yellow spotlight, and the flare off the stage spot, and the reflections off of the floor and catwalk.
It never looked this good in 4.0
Well done #blender3d , I dunno what you did between V4.0 and V4.4 but it looks great.

Terahertz channel performance under dynamic water surface reflections
Yapeng Ge, Jiacheng Liu, Jiayuan Cui, Mingxia Zhang, Wenbo Liu, Peian Li, Houjun Sun, Jianjun Ma
https://arxiv.org/abs/2506.18358

Terahertz channel performance under dynamic water surface reflections
As the terahertz (THz) band emerges as a pivotal technology for next-generation wireless communications, accurate channel modeling in dynamic environments becomes increasingly critical, particularly for scenarios involving reflective interactions with water surfaces. This article presents comprehensive experimental and theoretical investigations into THz channel (120-320 GHz) performance under dynamic water surface reflections. By developing and validating a modified dual-scale scattering model…

"Reflections on CoLIS 2025" [International Conference on Concepts of Library and Information Science] https://libraryblogs.is.ed.ac.uk/datablog/2025/07/16/reflections-on-colis-2025/

A former OpenAI engineer details his experience working at the company, including its culture, engineering practices, rapid growth, and the launch of Codex (Calvin French-Owen)
https://calv.info/openai-reflections

Reflections on OpenAI

Higher reflections and entropy of canonical shifts for inclusions of $C^*$-algebras with finite Watatani index
Keshab Chandra Bakshi, Satyajit Guin, Biplab Pal, Sruthymurali
https://arxiv.org/abs/2506.16130

Higher reflections and entropy of canonical shifts for inclusions of $C^*$-algebras with finite Watatani index
Given a unital inclusion of simple $C^*$-algebras equipped with a conditional expectation of index-finite type, we study higher Fourier transforms and rotation operators and introduce the reflection operators on the relative commutants. We prove that the reflections are unital, involutive, $*$-preserving anti-homomorphisms that preserve certain Markov-type traces. As an application, we prove Fourier theoretic inequalities on the higher relative commutants and improve the existing constant in th…

Uneven Lives IV 👁️
不工整人生 IV 👁️
📷 Minolta Hi-Matic AF
🎞️ERA 100, expired 1994
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

Hybrid RISs for Simultaneous Tunable Reflections and Sensing
George C. Alexandropoulos, Nir Shlezinger, Ioannis Gavras, Haiyang Zhang
https://arxiv.org/abs/2507.16550

Hybrid RISs for Simultaneous Tunable Reflections and Sensing
The concept of smart wireless environments envisions dynamic programmable propagation of information-bearing signals through the deployment of Reconfigurable Intelligent Surfaces (RISs). Typical RIS implementations include metasurfaces with passive unit elements capable to reflect their incident waves in controllable ways. However, this solely reflective operation induces significant challenges in the RIS orchestration from the wireless network. For example, channel estimation, which is essenti…

"This isn’t to say that AI is uniformly bad—it’s clearly not—but that we must not fall into the trap of mistaking the outputs of writing (…) from the value of the cognitive process of writing (…).
It would be a catastrophically unwise decision for humanity to abandon a key step in training young brains simply because they can now clack a few keys and produce something that sounds intelligent even as they never become intelligent."

The Death of the Student Essay—and the Future of Cognition
One professor's reflections on the end of an era, as AI tools such as ChatGPT have murdered the student essay (RIP). Here's why that threatens the future of human cognition—and how to save ourselves.

"Reflections on Attending the BIALL Conference: Exploring AI and Legal Librarianship" https://libraryblogs.is.ed.ac.uk/asl/2025/07/18/reflections-on-attending-the-biall-conference-exploring-ai-and-legal-l…

Theoretical prediction of ultrasensitive sensing in 3D stochastic interferometry
Guillaume Graciani, Marcel Filoche
https://arxiv.org/abs/2506.19239 https:…

Theoretical prediction of ultrasensitive sensing in 3D stochastic interferometry
We show that a random light field can be used for high-precision metrology purposes, given the introduction of specific boundary conditions in the form of Lambertian reflections inside a cavity. We demonstrate a quantifiable and reproducible interferometric response to minute perturbations in wavelength, refractive index, and geometry, predicting high sensitivities in good agreement with experimental measurements of geometrical deformations down to the picometer.

Reflections on Tech, Faith, and Justice
This week, I'm talking about yet another Christian-famous person falling from grace. Plus a sad court case, and a few other bits.
https://www.bobmuellerwriter.com/reflections-on-tech-faith-and-justice/

Reflections on Tech, Faith, and Justice – Bob Mueller
DIY wins, tech fixes, Disney stars in space, faith deconstruction, and justice in CCM—this week had it all.

Efficient Reasoning Through Suppression of Self-Affirmation Reflections in Large Reasoning Models
Kaiyuan Liu, Chen Shen, Zhanwei Zhang, Junjie Liu, Xiaosong Yuan, Jieping ye
https://arxiv.org/abs/2506.12353

Efficient Reasoning Through Suppression of Self-Affirmation Reflections in Large Reasoning Models
While recent advances in large reasoning models have demonstrated remarkable performance, efficient reasoning remains critical due to the rapid growth of output length. Existing optimization approaches highlights a tendency toward "overthinking", yet lack fine-grained analysis. In this work, we focus on Self-Affirmation Reflections: redundant reflective steps that affirm prior content and often occurs after the already correct reasoning steps. Observations of both original and optimized reasoni…

"I am an embodiment journeying towards belief. Faith seeking greater confidence. That is what being a Christian means to me. It may well be the work of a lifetime."
—Ian Barclay ’24 M.A.R. writing in the new issue of our journal, Reflections https://…

The death of the student essay - and the future of cognition https://www.forkingpaths.co/p/the-death-of-the-student-essayand "Next year, my courses will be assessed with in-person exams";

The Death of the Student Essay—and the Future of Cognition
One professor's reflections on the end of an era, as AI tools such as ChatGPT have murdered the student essay (RIP). Here's why that threatens the future of human cognition—and how to save ourselves.

Microstates : Do the outliers worth
Olivier Sire
https://arxiv.org/abs/2506.16080 https://arxiv.org/pdf/2506.16080

Microstates : Do the outliers worth
This note addresses the relevance of rare events in system dynamics, inspired by Jill North reflections on the origin of the arrow of time in thermodynamics. After identifying the existence of rare events, characterized by a Pareto distribution, within a simple gas particle simulation, we investigate their impact on entropy evolution. These rare events are associated with microstates that locally decrease entropy, in contrast to the overall entropy increase observed in the bulk of the system. W…

Replaced article(s) found for gr-qc. https://arxiv.org/list/gr-qc/new
[1/1]:
- Reflections on reflections
Kuan-Nan Lin, Pisin Chen
https://

This is a really cool insight about talking to people who like to use Midjourney/ChatGPT. The comparison with plastic use (and also car dependency) is great. For both of these things we know that they waste precious resources, pollute the environment and are health hazards. But even people who know this will still not let go because it's too much work. AI is not yet at this point but may soon be...

Female Mallard. Descanso Gardens, La Canada Flintridge, California, USA. July, 2025. #descansogardens #bird #birds

GOGS: High-Fidelity Geometry and Relighting for Glossy Objects via Gaussian Surfels
Xingyuan Yang, Min Wei
https://arxiv.org/abs/2508.14563 https://arxiv.o…

GOGS: High-Fidelity Geometry and Relighting for Glossy Objects via Gaussian Surfels
Inverse rendering of glossy objects from RGB imagery remains fundamentally limited by inherent ambiguity. Although NeRF-based methods achieve high-fidelity reconstruction via dense-ray sampling, their computational cost is prohibitive. Recent 3D Gaussian Splatting achieves high reconstruction efficiency but exhibits limitations under specular reflections. Multi-view inconsistencies introduce high-frequency surface noise and structural artifacts, while simplified rendering equations obscure mate…

🇺🇦 Auf #radioeins läuft...
Django Django:
🎵 Reflections
#NowPlaying #DjangoDjango
#radioeins gespielten Titel als #Spotify Playliste: https://open.spotify.com/playlist/3hdH98B6uyXilhcWxCA6nv

This Is Not the World I Wanted to Leave for You: Reflections on Legacy, Loss, and the Future We Shape
I have been thinking a great deal lately about living and dying, and about the strange, stubborn human hunger to leave something meaningful behind. The faces of those I have known who have already passed return to me in quiet moments, and I find myself watching those who are, even now, nearing the end of their own stories. I also include my final braided prairie knot…

This Is Not the World I Wanted to Leave for You: Reflections on Legacy, Loss, and the Future We Shape | David Boles, Blogs
I have been thinking a great deal lately about living and dying, and about the strange, stubborn human hunger to leave something meaningful behind. The faces of those I have known who have already …

Critical Reflections on Overcoming a Challenge for Bohmian Mechanics by H. Nikolic and the Experimental Findings of Sharoglazova et al
Miko{\l}aj Sienicki, Krzysztof Sienicki
https://arxiv.org/abs/2507.10989

Critical Reflections on Overcoming a Challenge for Bohmian Mechanics by H. Nikolic and the Experimental Findings of Sharoglazova et al
This paper offers a brief reflection on H. Nikolic's response to the experimental findings of Sharoglazova et al., which challenge Bohmian mechanics. While Nikolic's revision satisfies the continuity equation, it reintroduces assumptions he seeks to avoid and overlooks key empirical and nonlocal aspects of the system. These issues underscore unresolved tensions in applying Bohmian mechanics to complex, interacting regimes.

"Let’s extend to ourselves and to others the invitation of a Christianity that seeks light, rests in darkness, remains deeply rooted in justice, and flourishes in our own individual ways of nurturing it." —Karis Slattery '20 M.Div. in her new Reflections piece, "Don’t Water Fake Plants" h…

Mathematical reflections on modified fractional counting
Leo Egghe, Ronald Rousseau
https://arxiv.org/abs/2506.12057 https://arxiv.or…

Mathematical reflections on modified fractional counting
We make precise what is meant by stating that modified fractional counting (MFC) lies between full counting and complete-normalized fractional counting by proving that for individuals, the MFC-values are weighted geometric averages of these two extremes. There are two essentially different ways to consider the production of institutes in multi-institutional articles, namely participation and actual number of contributions. Starting from an idea published by Sivertsen, Rousseau and Zhang in 2019…

from my link log —
The Manchester Compiler Compiler and CPL: reflections of a user 50 years on.
https://curation.cs.manchester.ac.uk/atlas/docs/CC_Reflections-v4 final.pdf
saved 2024-11-06

Yet another Christian-famous person falls from their pedestal. Plus, a Michigan court case where no one wins.
https://www.bobmuellerwriter.com/reflections-on-tech-faith-and-justice/

Reflections on Tech, Faith, and Justice – Bob Mueller
DIY wins, tech fixes, Disney stars in space, faith deconstruction, and justice in CCM—this week had it all.

RIP, Mark Snow: listen to the composer talk about scoring X-Files and more
https://cdm.link/rip-mark-snow/?utm_source=flipboard&utm_content=muz4now/magazine/music

RIP, Mark Snow: listen to the composer talk about scoring X-Files and more - CDM Create Digital Music
Mark Snow, the mind-bogglingly prolific composer behind scores for Blue Bloods, Smallville, and the X-Files has died at age 78. From TV to film to games, Snow's take on electronic music scoring has left a mark on many of us. Here he is talking about his take on music, and some reflections on that unforgettable X-Files score.

A Machine Learning Framework for Scattering Kernel Derivation Using Molecular Dynamics Data in Very Low Earth Orbit
Miklas Sch\"utte, Stephen Hocker, Hansj\"org Lipp, Johannes Roth, Stefanos Fasoulas, Marcel Pfeiffer
https://arxiv.org/abs/2507.14143

A Machine Learning Framework for Scattering Kernel Derivation Using Molecular Dynamics Data in Very Low Earth Orbit
The free molecular flow regime in VLEO makes gas-surface interactions (GSIs) crucial for satellite aerodynamic modeling. The Direct Simulation Monte Carlo (DSMC) method is required to estimate aerodynamic forces due to the breakdown of the continuum assumption. In DSMC, the Maxwell model is the most widely used approach for GSI. It simplifies the process by treating it as a superposition of diffuse and specular reflections while assuming a constant accommodation coefficient. In reality, this co…

Governments freeloading on FOSS, not helping with funding (and at the same time collecting taxes on income/donations sourced otherwise) are just as exploitative as privately held companies, maybe even worse...
https://scalie.zone/@aks/115012388922867133

"We reach out, arms in exasperation, in tired anxiety, in worry, in unknowing—and God hands us back a feast. God plants flowers in our open palms."
—Caroline Blosser ’24 M.Div. writing in the new issue of Reflections, focused on "Is Christianity Losing its Religion?"

Saw this on my kitchen counter today and thought „hmm, ‚Solid Porcelain‘ might be a cool design language, actually.“
Can do the same 3d effects, nice highlights / reflections, and easier to read on than the transparency of #LiquidGlass. Plus, stuff sticking out of the icon is always fun. #iOS

Reflections on Rota-Baxter Lie algebras, the classical reflection equation and Poisson homogeneous spaces
Honglei Lang, Yunhe Sheng
https://arxiv.org/abs/2506.20276

Reflections on Rota-Baxter Lie algebras, the classical reflection equation and Poisson homogeneous spaces
In this paper, first we introduce the notion of reflections on quadratic Rota-Baxter Lie algebras of weight $λ$, and show that they give rise to solutions of the classical reflection equation for the corresponding triangular Lie bialgebra ($λ=0$) and factorizable Lie bialgebra ($λ\neq0$). Then we study reflections on relative Rota-Baxter Lie algebras, and also show that they give rise to solutions of the classical reflection equation for certain Lie bialgebras determined by the relative Rota…

BEAM-Net: A Deep Learning Framework with Bone Enhancement Attention Mechanism for High Resolution High Frame Rate Ultrasound Beamforming
Midhila Madhusoodanan, Mahesh Raveendranatha Panicker, Pisharody Harikrishnan Gopalakrishnan, Abhilash Rakkunedeth Hareendranathan
https://arxiv.org/abs/2507.15306

BEAM-Net: A Deep Learning Framework with Bone Enhancement Attention Mechanism for High Resolution High Frame Rate Ultrasound Beamforming
Pocket-sized, low-cost point-of-care ultrasound (POCUS) devices are increasingly used in musculoskeletal (MSK) applications for structural examination of bone tissue. However, the image quality in MSK ultrasound is often limited by speckle noise, low resolution, poor contrast, and anisotropic reflections, making bone images difficult to interpret without additional post-processing. Typically, medical ultrasound systems use delay and sum beamforming (DASB) for image reconstruction, which is not …

🇺🇦 #NowPlaying on KEXP's #SundaySoul
Reflections of Time:
🎵 I'm Willing
#ReflectionsofTime

City Features VIII 👣
城市特征 VIII 👣
📷 Nikon FE
🎞️Ilford FP4 Plus, expired 1994
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

My Carpe Iter is easier to read with a glossy screen protector on, rather than the frosted one.
Yes, there are reflections but only the same as there are from the KTM dash directly below it.
#Motorcycles

Replaced article(s) found for math.LO. https://arxiv.org/list/math.LO/new
[1/1]:
Some reflections on the relationship between logical incompleteness and concrete incompleteness

On reflections of congruence hyperbolic manifolds
Sami Douba, Franco Vargas Pallete
https://arxiv.org/abs/2506.23994 https://arxiv.or…

On reflections of congruence hyperbolic manifolds
We show that the standard method for constructing closed hyperbolic manifolds of arbitrary dimension possessing reflective symmetries typically produces reflections whose fixed point sets are nonseparating.

The redesign chanced way less than I was expecting honestly :(
Bringing back reflections like on iOS 6 is cool tho
#WWDC

Lie algebras generated by reflections in types BCD
Christopher M. Drupieski, Jonathan R. Kujawa
https://arxiv.org/abs/2506.01198 https://

Lie algebras generated by reflections in types BCD
We consider the group algebra over the field of complex numbers of the Weyl group of type B (the hyperoctahedral group, or the group of signed permutations) and of the Weyl group of type D (the demihyperoctahedral group, or the group of even-signed permutations), viewed as Lie algebras via the commutator bracket, and determine the structure of the Lie subalgebras generated by the sets of reflections.

"God’s love has the first and the final word, and we are invited to be part of it in our time and place."
—Shannon Craigo-Snell ’95 M.Div., ’02 Ph.D. in her article in the new issue of Reflections https://reflections.yale.edu/article/c

🇺🇦 #NowPlaying on BBCRadio3's #WordsAndMusic
Alan Bullard & Joanna Borrett:
🎵 Reflections on the River Stour
#AlanBullard #JoannaBorrett

Context, Credibility, and Control: User Reflections on AI Assisted Misinformation Tools
Varun Sangwan, Heidi Makitalo
https://arxiv.org/abs/2506.22940 http…

Context, Credibility, and Control: User Reflections on AI Assisted Misinformation Tools
This paper investigates how collaborative AI systems can enhance user agency in identifying and evaluating misinformation on social media platforms. Traditional methods, such as personal judgment or basic fact-checking, often fall short when faced with emotionally charged or context-deficient content. To address this, we designed and evaluated an interactive interface that integrates collaborative AI features, including real-time explanations, source aggregation, and debate-style interaction. T…

First run in over a month. No goals other than to clear my mind, enjoy the cooler evening temperatures, feel the breeze and enjoy the rustling of the leaves as the wind stirred the branches, to enjoy looking up at a nearly full moon, and let it all wash over me.
#Running

Successive Phase Transitions in the Quasi-Kagome Lattice System URhSn Studied by Resonant X-ray Scattering
Chihiro Tabata, Fusako Kon, Ruo Hibino, Yusei Shimizu, Hiroshi Amitsuka, Koji Kaneko, Yoshiya Homma, Dai Aoki, Hironori Nakao
https://arxiv.org/abs/2506.15394

Successive Phase Transitions in the Quasi-Kagome Lattice System URhSn Studied by Resonant X-ray Scattering
Successive phase transitions in the quasi-kagome compound URhSn were investigated by resonant X-ray scattering (RXS) at the uranium $M_4$ edge. In the high-temperature phase between 16 K and 54 K, an additional RXS signal was detected superposed onto fundamental reflections in both $π$-$σ'$ and $π$-$π'$ polarization channels. Upon cooling below 16 K, reported as a ferromagnetic phase along $c$, substantial enhancements were observed again in the both polarization channels at the 300 reflect…

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…

The new Compendium is here, and it’s more than just data. [Part 1]
Created by and for the #NREN community, this year’s edition brings the 2024 survey results to life through stories, context, and reflections from NRENs and expert contributors.
🔗 Read the report and explore the data:

apparently my grandma had the coolest spoons ive ever seen just lying around in the back of a drawer this whole time

DCIRNet: Depth Completion with Iterative Refinement for Dexterous Grasping of Transparent and Reflective Objects
Guanghu Xie, Zhiduo Jiang, Yonglong Zhang, Yang Liu, Zongwu Xie, Baoshi Cao, Hong Liu
https://arxiv.org/abs/2506.09491

DCIRNet: Depth Completion with Iterative Refinement for Dexterous Grasping of Transparent and Reflective Objects
Transparent and reflective objects in everyday environments pose significant challenges for depth sensors due to their unique visual properties, such as specular reflections and light transmission. These characteristics often lead to incomplete or inaccurate depth estimation, which severely impacts downstream geometry-based vision tasks, including object recognition, scene reconstruction, and robotic manipulation. To address the issue of missing depth information in transparent and reflective o…

Reflections of Cultural Wealth: Exploring Identity in Physics through Photo Elicitation
Zosia Krusberg
https://arxiv.org/abs/2505.21739 https://

Reflections of Cultural Wealth: Exploring Identity in Physics through Photo Elicitation
This paper presents a photo elicitation project that invites students to explore their identities in STEM and surface the cultural wealth they bring into the physics classroom. Grounded in critical race theory, educational theory, and affective neuroscience, the project asks students to take original photographs representing aspects of their lived experience-such as motivation, belonging, and support systems-and to write short reflections connecting these images to their journey in science. The…

"Many Christians can’t identify with the word Christian anymore. No wonder the New Testament mentions 'Christian' just three times, as if reluctant to endorse a term that would become so easily exploited or distorted."
—Reflections editor Ray Waddle on the question "Is Christianity Losing its Religion?"

Day two of my east-west road trip and got up early in a brisk minus 2C to get some shots of Pink Lake, about 10km from Jimboomba. Great reflections before the sunrise burnt the mist off. #RoadTrip

Observability of radio reflections from exoplanet ionospheres with next generation radio telescopes
Bhavesh Jaiswal, Nirupam Roy
https://arxiv.org/abs/2507.20978 https://…

Observability of radio reflections from exoplanet ionospheres with next generation radio telescopes
Much has been learned about exoplanets and their atmospheres in the last three decades with the help of highly sensitive optical telescopes. Limited observations using X-ray telescopes have revealed the presence of ionospheres with very high density plasma around the hot Jupiter HD189733b. Owing to high density, the cutoff frequency of this plasma would lie in the range of few GHz. As the planet goes around the star, we suggest it might be possible to capture the stellar radio emission reflecte…

My Carpe Iter is easier to read with a glossy screen protector on, rather than the frosted one.
Yes, there are reflections but only the same as there are from the KTM dash directly below it.
#Motorcycles

🇺🇦 #NowPlaying on KEXP's #PositiveVibrations
Barry Biggs:
🎵 Reflections of My Life
#BarryBiggs
https://open.spotify.com/track/16eGeaAL8uC2qBJJdTyMle

Optical Cavity in Relativistic Regime for Laser Propulsion
Francesco Lorenzi, Luca Salasnich, Maria Guglielmina Pelizzo
https://arxiv.org/abs/2508.12442 https://

Optical Cavity in Relativistic Regime for Laser Propulsion
Laser propulsion has been proposed for relativistic interstellar flights, but it faces the significant challenge of requiring extremely powerful laser radiation due to the inherently low momentum transfer between the beam and the sail. The photon-recycling technique enhances thrust by transferring momentum through multiple reflections within a cavity setup, formed by the lightsail and a ground-based mirror in a laser system array. In this work, a delay differential model is developed to describ…

"I do not deny scientific medicine’s power—its tools have saved my life and improved my functioning as much as its knowledge allowed. However, faith gives me a way of seeing and understanding the body as God’s good creation and sustained by God’s spirit."
—Hospice chaplain Aaron Klink ’05 M.Div. in his article for the new issue of Reflections, titled "Meds, MRIs, Miracles: A Hospice Chaplain Rereads Genesis"

https://bobbyhiltz.com/posts/2025/06/ai-replace/index.html

An in depth look at the Procrustes-Wasserstein distance: properties and barycenters
Davide Adamo, Marco Corneli, Manon Vuillien, Emmanuelle Vila
https://arxiv.org/abs/2507.00894

An in depth look at the Procrustes-Wasserstein distance: properties and barycenters
Due to its invariance to rigid transformations such as rotations and reflections, Procrustes-Wasserstein (PW) was introduced in the literature as an optimal transport (OT) distance, alternative to Wasserstein and more suited to tasks such as the alignment and comparison of point clouds. Having that application in mind, we carefully build a space of discrete probability measures and show that over that space PW actually is a distance. Algorithms to solve the PW problems already exist, however we…

Replaced article(s) found for math.OA. https://arxiv.org/list/math.OA/new
[1/1]:
- Higher reflections and entropy of canonical shifts for inclusions of $C^*$-algebras with finite W...
Keshab Chandra Bakshi, Satyajit Guin, Biplab Pal, Sruthymurali

“I know faithful people, including faithful preachers, who persist in hope for the future, against all odds, grounded in their hope in God’s steadfastness. That hope emboldens them both to hear and preach the truth of God’s compassion and of God’s justice, and to act accordingly. Their hope emboldens me.”
—Roger Ferlo ’79 Ph.D. writing in the latest issue of our journal, Reflections

This https://arxiv.org/abs/2503.08720 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCY_…

AI for Just Work: Constructing Diverse Imaginations of AI beyond "Replacing Humans"
"why" we develop AI. Lacking critical reflections on the general visions and purposes of AI may make the community vulnerable to manipulation. In this position paper, we explore the "why" question of AI. We denote answers to the "why" question the imaginations of AI, which depict our general visions, frames, and mindsets for the prospects of AI. We identify that the prevailing vision in the AI community is largely a monoculture that emphasizes objectives such as replacing humans and improving p…

3D tracking of Plankton with single-camera stereoscopy
J. Moscatelli, X Benoit Gonin, F. Elias
https://arxiv.org/abs/2506.05365 https://

3D tracking of Plankton with single-camera stereoscopy
We introduce a device developed to perform a 3D tracking of passive or active particles under flow, confined in a medium of hundreds micrometers wide. Micro-objects are placed inside a vertical glass capillary and two mirrors are set behind it with a certain angle, making it possible to have the two reflections of the capillary on the same optical plane. A 3D reconstruction of the trajectories, captured with a single camera, is carried out along the vertical axis with a micrometer-scale precisi…

City Features V 🌆
城市特征 V 🌆
📷 Nikon FE
🎞️Ilford FP4 Plus, expired 1994
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

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, …

"My experiences of connection with God and others in the church have kept me coming back. I am hoping against hope that the 21st century church can be an experiential community for the future, a place that more and more people can turn to for a mysterious experience of eternal resonance."
—S. Slade Hogan ’22 S.T.M. writing in the new issue of Reflections, which asks whether Christianity is losing its religion.

Lots of people were blowing bubbles at the Ithaca Festival Parade, I caught this one just before it popped
#photo #photography #ithacafestival

Cycles in subexpression graphs
Vladimir Shchigolev
https://arxiv.org/abs/2506.11208 https://arxiv.org/pdf/2506.11208

Cycles in subexpression graphs
Let $\mathfrak{S}(\underline{s},w)$ be the graph whose vertices are all subexpressions with target $w$ of a fixed expression $\underline{s}$ in generators of a Coxeter group and edges are the pairs of subexpressions with Hamming distance 2. We prove that $\mathfrak{S}(\underline{s},w)$ is connected and its cycle space is spanned by the cycles of lengths 3,4 and $n+2$, where $n$ runs over the set of all finite orders of products of two (not necessarily simple) reflections.

Conditional Diffusion Model-Driven Generative Channels for Double RIS-Aided Wireless Systems
Yiyang Ni, Qi Zhang, Guangji Chen, Yan Cai, Jun Li, Shi Jin
https://arxiv.org/abs/2506.12682

Conditional Diffusion Model-Driven Generative Channels for Double RIS-Aided Wireless Systems
With the development of the upcoming sixth-generation networks (6G), reconfigurable intelligent surfaces (RISs) have gained significant attention due to its ability of reconfiguring wireless channels via smart reflections. However, traditional channel state information (CSI) acquisition techniques for double-RIS systems face challenges (e.g., high pilot overhead or multipath interference). This paper proposes a new channel generation method in double-RIS communication systems based on the tool …

🇺🇦 #NowPlaying on #BBC6Music
Santo & Johnny:
🎵 Reflections
#Santo #Johnny

"Ex-hitmen make excellent ushers."
—Andrew McMillan ’80 M.Div. writing in Reflections about experiences and lessons from his decades of ministry and church-planting, mostly in Colombia https://reflections.yale.edu/article/c

This https://arxiv.org/abs/2411.15932 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Sobolev $(p,q)$-extension operators and Neumann eigenvalues
In this article, we study $(p,q)$-extension operators of Sobolev spaces, based on the duality of composition operators within these spaces. We construct Sobolev extension operators in Hölder singular domains using corresponding reflections. In addition, we use the $(p,q)$-extension operators to estimate non-linear Neumann eigenvalues.

Eigenvalue equations for sieved polynomials or proving Askey right again
Luc Vinet, Alexei Zhedanov
https://arxiv.org/abs/2507.03862 https://

Eigenvalue equations for sieved polynomials or proving Askey right again
The sieved Jacobi polynomials have been introduced by Askey. These can be obtained from conveniently taking $q$ to be a root of unity in the Askey-Wilson polynomials. The question of determining if they are eigenfunctions of some operator has been lingering for a long time. Askey impressed on us his conviction that it had an affirmative answer. It is shown that he was right and that this operator is of Dunkl type with cyclic reflections corresponding to the powers of $q$.

AN ACTUALLY A PIECE OF THE MOON
🌚🌘🌖🌒🌝 #moon #moonrock

"How do I reclaim my evangelical identity? By embracing the inclusive nature of God’s love."
—The Rev. Craig Robinson ’11 M.Div., ’14 S.T.M., writing in the new issue of our journal, Reflections https://reflections.yale.edu/article/c

The Growing Impact of Unintended Starlink Broadband Emission on Radio Astronomy in the SKA-Low Frequency Range
Dylan Grigg, Steven Tingay, Marcin Sokolowski
#toXiv_bot_toot

This https://arxiv.org/abs/2505.21739 has been replaced.
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Reflections of Cultural Wealth: Exploring Identity in Physics through Photo Elicitation
This paper presents a photo elicitation project that invites students to explore their identities in STEM and surface the cultural wealth they bring into the physics classroom. Grounded in critical race theory, educational theory, and affective neuroscience, the project asks students to take original photographs representing aspects of their lived experience-such as motivation, belonging, and support systems-and to write short reflections connecting these images to their journey in science. The…

Multimodal Mathematical Reasoning with Diverse Solving Perspective
Wenhao Shi, Zhiqiang Hu, Yi Bin, Yang Yang, See-Kiong Ng, Heng Tao Shen
https://arxiv.org/abs/2507.02804

Multimodal Mathematical Reasoning with Diverse Solving Perspective
Recent progress in large-scale reinforcement learning (RL) has notably enhanced the reasoning capabilities of large language models (LLMs), especially in mathematical domains. However, current multimodal LLMs (MLLMs) for mathematical reasoning often rely on one-to-one image-text pairs and single-solution supervision, overlooking the diversity of valid reasoning perspectives and internal reflections. In this work, we introduce MathV-DP, a novel dataset that captures multiple diverse solution tra…

Grazing incidence X-ray scattering alignment using the area detector
Edward Tortorici, Charles T. Rogers
https://arxiv.org/abs/2506.22970 https://

Grazing incidence X-ray scattering alignment using the area detector
Grazing incidence X-ray scattering experiments are designed to achieve strong scattering signals from materials, such as molecular monolayers, island films, or thin films that are localized to the surfaces of flat substrates. Optimal signals can be achieved with precise alignment of a substrate surface with the X-ray beam. Here, we outline a simple method that utilizes the area detector, generally available on such systems, to observe reflections from the sample to determine the sample-detector…

Simultaneous Localization and Mapping Using Active mmWave Sensing in 5G NR
Tao Du, Jie Yang, Fan Liu, Jiaxiang Guo, Shuqiang Xia, Chao-Kai Wen, Shi Jin
https://arxiv.org/abs/2507.04662

Simultaneous Localization and Mapping Using Active mmWave Sensing in 5G NR
Millimeter-wave (mmWave) 5G New Radio (NR) communication systems, with their high-resolution antenna arrays and extensive bandwidth, offer a transformative opportunity for high-throughput data transmission and advanced environmental sensing. Although passive sensing-based SLAM techniques can estimate user locations and environmental reflections simultaneously, their effectiveness is often constrained by assumptions of specular reflections and oversimplified map representations. To overcome thes…

Judgment as Coordination: A Joint Systems View of Visualization Design Practice
Paul C. Parsons, Arran Ridley
https://arxiv.org/abs/2507.01209 https://

Judgment as Coordination: A Joint Systems View of Visualization Design Practice
Professional visualization design has become an increasingly important area of inquiry, yet much of the field's discourse remains anchored in researcher-centered contexts. Studies of design practice often focus on individual designers' decisions and reflections, offering limited insight into the collaborative and systemic dimensions of professional work. In this paper, we propose a systems-level reframing of design judgment grounded in the coordination and adaptation that sustain progress amid …

"When are we preachers going to stop apologizing for preaching the gospel of Jesus Christ? It’s my belief that bolder and truer messaging will draw people back to the congregations from which they have fled in droves over the last decades."
—Will Mebane ’06 M.Div. writing in the new issue of our Reflections journal, focused on: Is Christianity losing its religion?

Spin-split superconductivity in spin-orbit coupled hybrid nanowires with ferromagnetic barriers
J. Zhao, A. Mazanik, D. Razmadze, Y. Liu, P. Krogstrup, F. S. Bergeret, S. Vaitiek\.enas
https://arxiv.org/abs/2506.08247

Spin-split superconductivity in spin-orbit coupled hybrid nanowires with ferromagnetic barriers
We report transport studies of hybrid Josephson junctions based on semiconducting InAs nanowires with fully overlapping epitaxial ferromagnetic insulator EuS and superconducting Al partial shells. Current-biased measurements reveal a hysteretic superconducting window with a sizable supercurrent near the coercive field of the ferromagnetic insulator, accompanied by multiple Andreev reflections. Tunneling spectroscopy shows a superconducting gap characterized by three peaks, which we attribute to…

City Snaps - Chengdu / A Rain in Park ☔️
城市抓拍 - 成都 / 雨中的公园 ☔️
📷 Nikon FE
🎞️Ilford Pan 400
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

"I never imagined that I would become unchurched. Yet being unchurched, I am discovering that whenever we intentionally put a few chairs and a table together to have a meal, we are manifesting a new—or perhaps ancient—way of doing church in our time."
—Vincent Wei-Cheng Lin ’24 S.T.M. writing in the new issue of Reflections, which addresses whether Christianity is losing its religion.

Knot complements decomposing into prisms
Jason Deblois, Arshia Gharagozlou, Neil R Hoffman
https://arxiv.org/abs/2507.01263 https://a…

Knot complements decomposing into prisms
We describe four hyperbolic knot complements in $\mathbb{S}^3$, each of which covers a prism orbifold: the quotient of $\mathbb{H}^3$ by the action of a discrete group generated by reflections in the faces of a polyhedron that has the combinatorial type of a triangular prism. The prism orbifolds are rigid-cusped and contain compact, totally geodesic hyperbolic triangle sub-orbifolds; as a result, the knot complements covering them have hidden symmetries and contain closed, embedded, totally geo…

"Out of pain and righteous anger I took apart the stained glass windows of my childhood faith. Over time I looked more closely at the glass shards at my feet and chose to reconstruct my faith life."
—Sandra L. Fischer ’12 M.Div. writing in the new issue of our journal, Reflections, which addresses whether Christianity is losing its religion.

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

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

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

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Vibe coding: programming through conversation with artificial intelligence
Advait Sarkar, Ian Drosos
https://arxiv.org/abs/2506.23253 https://

Vibe coding: programming through conversation with artificial intelligence
We examine "vibe coding": an emergent programming paradigm where developers primarily write code by interacting with code-generating large language models rather than writing code directly. We analysed a curated set of videos depicting extended vibe coding sessions with rich think-aloud reflections. Using framework analysis, we investigated programmers' goals, workflows, prompting techniques, debugging approaches, and challenges encountered. We find that vibe coding follows iterative goal satis…

Natura Urbana 🏡
城市自然 🏡
📷 Pentax MX
🎞️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.

Hardware Limitations and Optimization Approach in 1-Bit RIS Design at 28 GHz
Hossein Rezaei, Mehmet Emin Arslan, George Yammine, Niels Neumann, Norman Franchi
https://arxiv.org/abs/2506.08930

Hardware Limitations and Optimization Approach in 1-Bit RIS Design at 28 GHz
Reconfigurable intelligent surfaces (RIS) have emerged as a transformative technology for electromagnetic (EM) wave manipulation, offering unprecedented control over wave reflections compared to traditional metallic reflectors. By utilizing an array of tunable elements, RIS can steer and shape electromagnetic waves to enhance signal quality in wireless communication and radar systems. However, practical implementations face significant challenges due to hardware limitations and phase quantizati…

Teaching Astronomy with Large Language Models
Yuan-Sen Ting, Teaghan O'Briain
https://arxiv.org/abs/2506.06921 https://arxiv.org/…

Teaching Astronomy with Large Language Models
We present a study of LLM integration in final-year undergraduate astronomy education, examining how students develop AI literacy through structured guidance and documentation requirements. We developed AstroTutor, a domain-specific astronomy tutoring system enhanced with curated arXiv content, and deployed it alongside general-purpose LLMs in the course. Students documented their AI usage through homework reflections and post-course surveys. We analyzed student evolution in AI interaction stra…

City Snaps - Chengdu / A Rain in Park ☔️
城市抓拍 - 成都 / 雨中的公园 ☔️
📷 Nikon FE
🎞️Ilford Pan 400
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#filmphotography

Windowing in terahertz time-domain spectroscopy: resolving resonances in thin-film samples
Esteban Marulanda, Fernanda L. Costa, Nicolas M. Kawahala, Felix G. G. Hernandez
https://arxiv.org/abs/2507.00729

Windowing in terahertz time-domain spectroscopy: resolving resonances in thin-film samples
Terahertz time-domain spectroscopy (THz-TDS) has become a powerful tool for investigating the optical properties of thin films, offering direct access to the complex permittivity in the terahertz range. However, in transmission-based measurements of thin films on thick substrates, multiple reflections and limited time windows can introduce artifacts that obscure resonant features such as phonon modes. Time-domain windowing is widely employed to mitigate these effects, yet systematic guidelines …

Assembling and Modeling Stacked Disordered Metasurfaces
Miao Chen, Amit Sharma, Johann Michler, Xavier Maeder, Philippe Lalanne, Angelos Xomalis
https://arxiv.org/abs/2506.23666

Assembling and Modeling Stacked Disordered Metasurfaces
Disordered metasurfaces offer unique properties unattainable with periodic or ordered metasurfaces, notably the absence of deterministic interference effects at specific wavelengths and angles. In this work, we introduce a lithography-free nanofabrication approach to realize cascaded disordered plasmonic metasurfaces with sub-micron total thickness. We experimentally characterize their angle-resolved specular and diffuse reflections using the bidirectional reflection distribution function (BRDF…

Urban Diaspora 7️⃣
城市放逐 7️⃣
📷 Nikon FE
🎞️Ilford FP4 Plus, expired 1994
buy me ☕️ ?/请我喝杯☕️？
#filmphotography