Tootfinder

“My life is really about service. It’s something that my family has always promoted, and it’s a reflection of my faith.”
Hear more from alum Elijah Heyward III on his "Mission-Driven Life."
https://forhumanity.yale.edu/news/mission-driven-life

Imaging of ultrasound specularity at cortical bone interfaces to detect unbalanced remodeling: A preliminary study
Amadou S. Dia, Salom\'e Vignat, Guillaume Renaud, Quentin Grimal
https://arxiv.org/abs/2607.16791 https://arxiv.org/pdf/2607.16791 https://arxiv.org/html/2607.16791
arXiv:2607.16791v1 Announce Type: new
Abstract: The region near the interface between cortical bone and the medullary cavity (the endosteal surface) is of particular interest for the early detection of osteoporosis. This region is typically the first to exhibit signs of unbalanced remodeling (enlarged pores and increased surface roughness). In this study, we analyze ultrasound reflection at the endosteal surface to introduce a novel potential biomarker of cortical bone health based on specularity. Our hypothesis is that increased pore size and surface roughness enhance ultrasound scattering, thereby reducing specular reflection. We reconstruct maps of specularity by combining a signal processing technique initially designed to enhance specular reflectors in soft tissues with a beamforming technique that accounts for refraction at bone soft tissue interfaces. Specularity values (between 0 and 1) quantify the similarity between received signals and signals from an ideal specular reflector. Using numerical simulations and ex vivo measurements with a 2.5 MHz phased array we highlight a strong relationship between specularity and bone microstructure, as assessed by high-resolution micro-computed tomography. Among 12 regions of interest (ROI) in the femoral bone of three donors, 8 ROIs without large pores showed high specularity (>0.5) in over 50% of pixels, in contrast to 4 ROIs with signs of extensive remodeling. Both pore volume fraction and pore size were strongly associated with specularity. In simple linear regression analyses, each parameter individually explained 84% of the variability in specularity. These findings suggest that specularity reflects bone microstructure and may potentially serve as a sensitive marker for identifying cortical bone degradation near the endosteal surface.
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🔊 #NowPlaying on #BBCRadio3:
#SundayMorning
- Two hours of classical sparkle
Join Sarah for a relaxed Sunday mix, with music inspired by summer travels, a reflective Choral Reflection, spine-tingling Bernstein and one of Schubert's best-loved symphonies.
Relisten now 👇
https://www.bbc.co.uk/programmes/m002z7v1

Reflection, when running the 4th Gentoo install of the weekend:
Just because you can configure Gentoo to the hilt, doesn't mean you should do so.
My afterthoughts are usually spot on 😆
#gentoo

RE: https://mastodon.social/@mtift/116528444671192742
What a lovely writeup / reflection from @…. The post is about my talk at Minnebar last weekend, “What tech lessons should we learn from the ICE invasion?” It’s always reassuring to hear what somebody else heard and think, “Yup, that’s the talk I gave!”
There’s been a lot of interest in video of this talk, and apparently video will be available, eventually, theoretically. In the meantime, Matthew’s writeup will give you a good slice of what I talked about.

Reducibility of spectral curves of finite Jacobi pencils
B. Shapiro
https://arxiv.org/abs/2605.14817 https://arxiv.org/pdf/2605.14817 https://arxiv.org/html/2605.14817
arXiv:2605.14817v1 Announce Type: new
Abstract: We consider finite pencils of Jacobi matrices \[ J_n(w)=A wB, \] where $A$ is diagonal and $B$ is tridiagonal with zero diagonal. The spectral curve is the affine plane curve \[ \chi_n(\lambda,w)=\det(\lambda I J_n(w))=0 . \] The main question is to describe when this curve is reducible. We prove generic irreducibility for fixed pairwise distinct diagonal entries and discuss several elementary reducibility mechanisms. Besides disconnected Jacobi chains, constant eigenvalue branches, and reflection-symmetric components, one must also take into account reducibility caused by scalar diagonal blocks. We formulate a reducibility conjecture and record low-dimensional evidence and counterexamples to several overly optimistic classifications. A central point of the picture is a codimension-growth principle: apart from the cutting divisors $b_i=0$, genuinely connected primitive reducibility should move to higher and higher codimension as the size of the chain grows.
toXiv_bot_toot

Perfection Because It Doesn’t Exist ☀️
完美因为完美不存在 ☀️
📷 Nikon F4E
🎞️ Kentmere 400
If you like my work, Support by buying me a coffee or a roll of film from
PayPal https://www.paypal.com/paypalme/ydcdingsite
Wise

Anthropic launches a "reflection" dashboard in beta for Free, Pro, and Max users to track Claude usage patterns over 1-, 3-, 6-, or 12-month intervals (Anthropic)
http://anthropic.com/news/reflect-with-claude

A new way to reflect on how you use Claude
Introducing a new way to reflect on and refine how you use Claude. It lets you easily track and visualize how you use Claude, and decide whether that time aligns with your goals.

Vision-Language-Action Models Meet World Models: Embodied Agentic AI for Low-Altitude Wireless Networks
Feibo Jiang, Li Dong, Lei Mao, Kezhi Wang, Cunhua Pan, Dong In Kim, Naofal Al-Dhahir
https://arxiv.org/abs/2606.11618 https://arxiv.org/pdf/2606.11618 https://arxiv.org/html/2606.11618
arXiv:2606.11618v1 Announce Type: new
Abstract: Low-Altitude Wireless Networks (LAWNs), composed of Unmanned Aerial Vehicles (UAVs) and other aerial platforms, provide integrated perception, communication, and computation services in low-altitude airspace. However, deploying large generative models in this domain faces three major challenges: 1) Limited embodied action mapping; 2) Inadequate physical environment modeling; 3) Insufficient closed-loop optimization. To address these challenges, this study proposes an Embodied Agentic UAV framework. Centered on a Vision-Language-Action (VLA) model as the execution core, the framework establishes an end-to-end embodied decision-making pipeline from multimodal environmental perception to continuous control generation. In addition, a World Model (WM) is introduced to capture the coupling between UAV actions and environmental state evolution, thereby supporting environment prediction, policy verification, and dynamic optimization. Furthermore, memory and reflection mechanisms are incorporated to form an adaptive closed-loop optimization paradigm of decision, execution, evaluation, and update, thereby enhancing the system's autonomous decision-making capability and continual evolution ability in complex dynamic environments. Experimental results validate its effectiveness in enabling robust, predictive, and sustainable autonomous control in LAWNs.
toXiv_bot_toot

🔊 #NowPlaying on #BBCRadio3:
#SundayMorning
- Three hours of classical sparkle
Join Sarah Walker for a colourful Sunday mix, from pastoral landscapes and Renaissance choral music to Russian orchestral drama and moments of reflection.
Relisten now 👇
https://www.bbc.co.uk/programmes/m002xh1r

1970s vibes
#photography #colors #abstract #reflection

Hello! Your final reminder about today's masterclass on #Reflection and self-awareness.
I'm kicking off in 30mins and followers are free to join me on Zoom via:
https://us02web.zoom.us/j/81945999860

"Marking Gender: A Critical Analysis of Gender Representation in Library of Congress Subject Headings"
https://doi.org/10.5860/lrts.70n2.8680
"Although the problem of bias, prejudice, and marginalization has long been a subject of critical reflection and inquiry in library knowl…

🇺🇦 #NowPlaying on #BBC6Music's #SHERELLE
DJ Die & Pinch:
🎵 Jungle Reflection
#DJDie #Pinch
https://gutterfunkuk.bandcamp.com/track/dj-die-pinch-jungle-reflection-all-subject-to-vibes-lp-gutterfunk
https://open.spotify.com/track/4lK6qxmWsObnbZD0J3PjHO

from my link log —
What SRE is not.
https://blog.relyabilit.ie/what-sre-is-not/
saved 2021-11-29 https://dotat.at/:/T0UG8.html

What SRE is not
We used to have a difficulty in our community - thankfully less prevalent now - with rootless questions of identity. Of course, it's not wrong to ask who we are, what we're here for, and what should we be doing: every profession benefits from regular reflection. But too much of

LSR-Net: Long-Short-Range Operator Learning for Pattern Dynamics on Manifolds
Qian Serena Hou, Zecheng Gan
https://arxiv.org/abs/2607.00750 https://arxiv.org/pdf/2607.00750 https://arxiv.org/html/2607.00750
arXiv:2607.00750v1 Announce Type: new
Abstract: We propose the Long-Short-Range Neural Network (LSR-Net), an extensible operator-learning framework for predicting pattern dynamics on planar domains, spherical surfaces, and general manifolds. The method decomposes the forward evolution operator into a long-range component, represented by a compact Fourier multiplier constructed via the Sum-of-Exponentials (SOE) approximation, and a short-range component adapted to the underlying geometry and its intrinsic symmetries. For general manifolds represented by irregularly sampled point clouds, the long-range component is implemented by Gaussian gridding onto an auxiliary regular grid, where the Fourier multiplier is efficiently applied in k-space using FFT and the result is interpolated back to the original sample points. We evaluate LSR-Net on several benchmark systems, including the Allen-Cahn, Cahn-Hilliard, Schnakenberg, and Turing systems, over planar domains, spherical surfaces, and a blob-shaped manifold. Numerical results demonstrate that LSR-Net consistently achieves higher accuracy and improved stability compared with baseline operator-learning models. In particular, for Allen-Cahn dynamics on the sphere, the RMSE is reduced by approximately three orders of magnitude compared with the Spherical Fourier Neural Operator (SFNO). Rotation and reflection equivariance tests further confirm that the learned operator is consistent with these geometric transformations. These results indicate that LSR-Net provides an effective and robust approach for learning pattern dynamics on complex geometries.
toXiv_bot_toot

Sources: the US DOD strikes agreements with Nvidia, Microsoft, Reflection AI, and AWS to use their AI tools on classified military networks for "lawful" use (Katrina Manson/Bloomberg)
https://www.bloomberg.com/news/articles/20

from my link log —
What SRE is not.
https://blog.relyabilit.ie/what-sre-is-not/
saved 2021-11-29 https://dotat.at/:/T0UG8.html

What SRE is not
We used to have a difficulty in our community - thankfully less prevalent now - with rootless questions of identity. Of course, it's not wrong to ask who we are, what we're here for, and what should we be doing: every profession benefits from regular reflection. But too much of

🇺🇦 #NowPlaying on #KEXP's #JazzTheatre
Venna:
🎵 Eternal Reflection
#Venna
https://open.spotify.com/track/1kgPaBdX9AgJzBMDtxjSHm

Weird sunset vibes although sun still has almost two hours to go, but dark clouds and haze make for some strong contrasts.
Also a nice symmetry between the sun and it's reflection on the water, plus the clouds and dark ground.
#Ireland #Sunset #Ocean

Morning! A nice, varied day in the office today. Preparing a client video about the role of sleep in our wellbeing, recording a podcast episode on productivity tools, and spending the afternoon creating a new course on reflection.
Definitely my kind of day!

Gentle Giant "On Reflection" (2021 Steven Wilson Remix)

• YouTube
• YouTube Music
• Invidious

🇺🇦 #NowPlaying on #BBC6Music's #StuartMaconiesFreakZone
BBC Concert Orchestra & Robert Ames:
🎵 On Reflection
#BBCConcertOrchestra #RobertAmes

🇺🇦 #NowPlaying on #BBC6Music's #CraigCharles
The Sisters of Mercy:
🎵 Lucretia My Reflection
#TheSistersofMercy
https://open.spotify.com/track/20goDx14UZviYtCPtLbqvs

🇺🇦 #NowPlaying on KEXP's #VarietyMix
tofubeats feat. 中村佳穂:
🎵 REFLECTION
#tofubeats #中村佳穂
https://open.spotify.com/track/5gdCH1bmjEvTG9gT2egptq

🇺🇦 #NowPlaying on BBCRadio3's #InTune
Matthew Wilder, Sir Stephen Hough & Sir Stephen Hough:
🎵 Reflection (Mulan)
#MatthewWilder #SirStephenHough
https://open.spotify.com/track/1lIYTNR8WuE2N4tAFbckG4

"Upon reflection" I think I got a good deal on these copper and bronze tumblers. 🤓
#photography #amateur #India #tumblers #copper #bronze #reflection #pun #photoMonday #FotoMontag

🇺🇦 #NowPlaying on BBCRadio3's #BBCProms
BBC Concert Orchestra & Robert Ames:
🎵 On Reflection
#BBCConcertOrchestra #RobertAmes