Tootfinder

#til
The built in calculator app on the iPhone can do all sorts of conversions.
Long-press the icon at bottom left and you get a pop-up menu. Slide the toggle on and the default $ to € currency converter appears. There’s a bazillion other currencies available too. But you can also choose among 15 other unit conversions, like weights, energy, force, pressure.

Assessing a Safety Case: Bottom-up Guidance for Claims and Evidence Evaluation
Scott Schnelle, Francesca Favaro, Laura Fraade-Blanar, David Wichner, Holland Broce, Justin Miranda
https://arxiv.org/abs/2506.09929

Assessing a Safety Case: Bottom-up Guidance for Claims and Evidence Evaluation
As Automated Driving Systems (ADS) technology advances, ensuring safety and public trust requires robust assurance frameworks, with safety cases emerging as a critical tool toward such a goal. This paper explores an approach to assess how a safety case is supported by its claims and evidence, toward establishing credibility for the overall case. Starting from a description of the building blocks of a safety case (claims, evidence, and optional format-dependent entries), this paper delves into t…

You know, I still never got to the bottom of how I will cope with new storage devices being 4K native.
The problem I experience is that if I bitwise copy a virtual machine's block device from a 512B storage device to a 4KB storage device, it can no longer be booted. The (DOS MBR) partition table is wrong.
I haven't been able to come up with a way to do this without rsync of data filesystem to filesystem, which is not feasible for customer data.

Finally someone stood up to the hunters!
Oh wait…
(The bottom sign says "hunting, fishing, gathering [mushrooms or fruits] forbidden".)

Holographic D-brane constructions with dynamical gauge fields
Yongjun Ahn, Matteo Baggioli, Hyun-Sik Jeong, Masataka Matsumoto
https://arxiv.org/abs/2506.09461

Holographic D-brane constructions with dynamical gauge fields
Holographic D-brane constructions, governed by the Dirac-Born-Infeld (DBI) action, play a central role in the AdS/CFT correspondence, particularly in applications to quantum chromodynamics and condensed matter systems. In this work, we demonstrate how to equip these bottom-up holographic models with dynamical boundary gauge fields, thereby introducing electromagnetic interactions into their dual field theory descriptions. As a direct application of this formalism, we compute the dispersion rela…

Solace! Spirit cleansing.
(Incredible light on our morning hike today. So very grateful for these experiences, especially these days... 🙏)
#LandscapePhotography #NaturePhotography #MorningWalk

Laser Guided Microbubble Lithography for Multilayer Biophotonic Heterostructures
Anand Dev Ranjan, Suyash Narayan Amzare, Subhrokoli Ghosh, Ayan Banerjee
https://arxiv.org/abs/2506.10320

Laser Guided Microbubble Lithography for Multilayer Biophotonic Heterostructures
The fabrication of multilayered heterostructures is essential for advancing microelectronic and biosensing technologies. Conventional top-down manufacturing techniques are often cost-prohibitive and unsuitable for biomedical applications. Here, we present a bottom-up fabrication method, termed microbubble lithography, which enables the in situ construction of multilayered microstructures through layer-by-layer self-assembly. This technique allows diverse materials to be integrated into coherent…

Veranstaltungshinweis für #wiki-Interessierte im #glam-Kontext: Online Vortrag & Diskussion: Bottom-Up Organizing in Wikimedia Projects, kommenden Mittwoch, 17-18 Uhr über Zoom. Anmeldung und Infos unter:

Bottom-Up Perspectives on AI Governance: Insights from User Reviews of AI Products
Stefan Pasch
https://arxiv.org/abs/2506.00080 https://

Bottom-Up Perspectives on AI Governance: Insights from User Reviews of AI Products
With the growing importance of AI governance, numerous high-level frameworks and principles have been articulated by policymakers, institutions, and expert communities to guide the development and application of AI. While such frameworks offer valuable normative orientation, they may not fully capture the practical concerns of those who interact with AI systems in organizational and operational contexts. To address this gap, this study adopts a bottom-up approach to explore how governance-relev…

Quiz time! What does this chart represent? It’s a timeline from 1977 to 2025. Two clues:
1. It continues to the present day
2. I just watched Wayne’s World 2
#quiz #charts #graphs

Anarchism and Linux share key similarities in decentralization. Anarchism puts power back into the hands of the people through democratic, decentralized communities and bottom-up unions that organize collectively without hierarchy. Similarly, Linux operates as a decentralized system where no single entity controls the whole; instead, development and decision-making happen through collaborative, distributed contributions from a global community.
They also align in the principle of mutua…

“This considers how two modern cameras handle a difficult color challenge, illustrated by photos of a perfect rose and a piano.” https://www.tbray.org/ongoing/When/202x/2025/05/31/Colors

Perfectly Different Colors

Me waiting in the call for @… (I refuse to actually stand up for our standup before she arrives)

"David Attenborough’s ‘Ocean’ is a brutal, beautiful wake-up call from the sea"
#Oceans #Environment #Film #Media

David Attenborough's 'Ocean' exposes the unseen destruction of the seas
The new film “Ocean With David Attenborough” is both a breathtaking celebration of marine life and a sobering exposé of the industrial forces pushing the ocean toward collapse. With never-before-seen footage from mass coral bleaching to the violent destruction of bottom trawling, it reveals the hidden toll of human activity beneath the waves. But it’s also a story of hope that spotlights thriving marine reserves and the power of protection. Timed to World Oceans Day and the U.N. Ocean Co…

I've been a Duolingo user since 2013. You can track the enshittification of the product since they went public.
Enshittification is now complete, with humans being replaced by AI. This act of mine is my way of avoiding being treated like a wallet while you mistreat others.
#duolingo #workingClass

This https://arxiv.org/abs/2503.07521 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Holographic QCD Running Coupling for Heavy Quarks in Strong Magnetic Field
We investigate the influence of a magnetic field on the running coupling constant for a heavy-quark model in a bottom-up holographic approach. To achieve this, we employ a magnetized Einstein-Maxwell-dilaton background that captures the essential features of heavy quark dynamics. Similar to the light-quark model, the running coupling $α$ for heavy quarks decreases in the presence of a strong external magnetic field at fixed temperature and chemical potential. The key distinction between the li…

Join the 2025 Maine AI 'unconference' on June 13 in Orono for face-to-face discussions whose topics will be democratically chosen by the attenders. (We've got expert panels too.) Register by this Friday—more at https://www.linkedin.com/posts/jonippolito

Baby's first unun!
My #AmateurRadio journey continues with making some of my own equipment...
I wanted to be able to connect either an EFHW or an EFRW to my KX3, but move the actual antenna away from the radio, so that I can POTA with other people close enough to talk, while keeping the antennas for the different out of each others' near field so they don't interere. To …

I swear, we could clean this house completely top to bottom and five minutes later he’ll show up, looking like this
#caturday

Explicit Bounds on the Spectrum of 6d N=(1,0) Supergravity
Caucher Birkar, Seung-Joo Lee
https://arxiv.org/abs/2507.06295 https://arx…

Explicit Bounds on the Spectrum of 6d N=(1,0) Supergravity
We propose a novel strategy to derive explicit and uniform upper bounds on the particle spectrum of six-dimensional gravitational theories with minimal supersymmetry, focusing initially on the tensor sector. The strategy is motivated by considerations of F-theory compactifications on elliptic Calabi-Yau 3-folds. However, it admits a clear bottom-up interpretation and is thus applicable to general supergravity theories modulo certain physical conjectures. At the heart of the strategy are two key…

Towards culturally-appropriate conversational AI for health in the majority world: An exploratory study with citizens and professionals in Latin America
Dorian Peters, Fernanda Espinoza, Marco da Re, Guido Ivetta, Luciana Benotti, Rafael A. Calvo
https://arxiv.org/abs/2507.01719

Towards culturally-appropriate conversational AI for health in the majority world: An exploratory study with citizens and professionals in Latin America
There is justifiable interest in leveraging conversational AI (CAI) for health across the majority world, but to be effective, CAI must respond appropriately within culturally and linguistically diverse contexts. Therefore, we need ways to address the fact that current LLMs exclude many lived experiences globally. Various advances are underway which focus on top-down approaches and increasing training data. In this paper, we aim to complement these with a bottom-up locally-grounded approach bas…

Human Traces 👤
人类的踪迹 👤
📷 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.

Shape Preserving Tree Transducers
Paul Gallot, Sebastian Maneth
https://arxiv.org/abs/2506.22047 https://arxiv.org/pdf/2506.22047

Shape Preserving Tree Transducers
It is shown that shape preservation is decidable for top-down tree transducers, bottom-up tree transducers, and for compositions of total deterministic macro tree transducers. Moreover, if a transducer is shape preserving, then it can be brought into a particular normal form, where every input node creates exactly one output node.

Scalable Dip-Coated Bragg Mirrors for Strong Light-Matter Coupling with 2D Perovskites
Melissa M\'endez-Galv\'an, Zaira Saucedo-Ch\'avez, Diana Medrano, Michael Zuarez-Chamba, Yesenia A. Garc\'ia-Jomaso, C\'esar L. Ord\'o\~nez-Romero, Giuseppe Pirruccio, Arturo Camacho-Guardian, Galo J. A. A. Soler-Illia, Hugo A. Lara-Garc\'ia

Scalable Dip-Coated Bragg Mirrors for Strong Light-Matter Coupling with 2D Perovskites
We report a scalable and cost-effective method for fabricating high-performance Bragg mirrors using a bottom-up approach that combines evaporation-induced self-assembly (EISA) and dip-coating. The photonic crystals are composed of alternating mesoporous SiO$_2$ and dense TiO$_2$ layers, providing a high refractive index contrast ($\sim$0.8). This enables strong reflectance (up to 96%) with as few as five bilayers and precise control of the photonic stop band across the visible spectrum by simpl…

The white flowers in the new “alt-grass” have started to pop up in the front of the driveway (bottom right) and middle. Still patchy bits but nbd. And the taller stuff is now shading/protecting/cooling the smaller.
The front (bottom) that we seeded a few weeks after the initial planting is growing in nicely.
In a few weeks maybe we will get some poppies in the oldest areas.
Love this stuff!
We can start to walk on the older now, gently. Feels nice barefoot. Down to watering once a day, morning, unless it is over 30°C.
Intending to get more slate slabs next week, so I’ll put in a fourth step stone and probably move the one on the left back a few inches. I’ll try to be careful so I can transplant the grass to some of the patchy areas.
That will also be a first try at backing the trailer over the hump onto the new paths with a lot of weight.
#yard #diy #grass #noconcrete #diy #bloomscrolling

Just set up an instance of Uptime Kuma out of spite because Uptime Robot want to quadruple their prices.
1) It's really good! I like it!
2) I know you all hate the LLMs, but compared to having to read and understand the entire fucking Linux network stack all the way to the bottom in order to make a simple change, having Microsoft Co-pilot on hand to walk me through it made it take a couple of hours instead of several days.

We've got buried treasure on view in a new display at the museum. Thanks to a recent gift and the work of a consultant and a staff member, we're displaying mingqi, or "spirit goods," in two adjoining cases in the permanent collection. Read on to learn more about how this grouping of well-preserved objects came together.

fucked up in the crib drinking Default_juice

fucked up in the crib drinking Default_juice

DOBB-BVH: Efficient Ray Traversal by Transforming Wide BVHs into Oriented Bounding Box Trees using Discrete Rotations
Michael A. Kern, Alain Galvan, David Oldcorn, Daniel Skinner, Rohan Mehalwal, Leo Reyes Lozano, Matth\"aus G. Chajdas
https://arxiv.org/abs/2506.22849

DOBB-BVH: Efficient Ray Traversal by Transforming Wide BVHs into Oriented Bounding Box Trees using Discrete Rotations
Oriented bounding box (OBB) bounding volume hierarchies offer a more precise fit than axis-aligned bounding box hierarchies in scenarios with thin elongated and arbitrarily rotated geometry, enhancing intersection test performance in ray tracing. However, determining optimally oriented bounding boxes can be computationally expensive and have high memory requirements. Recent research has shown that pre-built hierarchies can be efficiently converted to OBB hierarchies on the GPU in a bottom-up pa…

Good morning from Harlem
#Photography #GoodMorjjning #Sunrise #NYC

Human Traces 👤
人类的踪迹 👤
📷 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.

Vertical Profile Corrected Satellite NH3 Retrievals Enable Accurate Agricultural Emission Characterization in China
Qiming Liu, Yilin Chen, Peng Xu, Huizhong Shen, Zelin Mai, Ruixin Zhang, Peng Guo, Zhiyu Zheng, Tiancheng Luan, Shu Tao
https://arxiv.org/abs/2505.19942

Vertical Profile Corrected Satellite NH3 Retrievals Enable Accurate Agricultural Emission Characterization in China
Ammonia (NH3) emissions significantly contribute to atmospheric pollution, yet discrepancies exist between bottom-up inventories and satellite-constrained top-down estimates, with the latter typically one-third higher. This study quantifies how assumptions about NH3 vertical distribution in satellite retrievals contribute to this gap. By implementing spatially and temporally resolved vertical profiles from the Community Multiscale Air Quality model to replace steep gradients in Infrared Atmosph…

Adaptive Sketching Based Construction of H2 Matrices on GPUs
Wajih Halim Boukaram, Yang Liu, Pieter Ghysels, Xiaoye Sherry Li
https://arxiv.org/abs/2506.16759

Adaptive Sketching Based Construction of H2 Matrices on GPUs
We develop a novel linear-complexity bottom-up sketching-based algorithm for constructing a $H^2$ matrix, and present its high performance GPU implementation. The construction algorithm requires both a black-box sketching operator and an entry evaluation function. The novelty of our GPU approach centers around the design and implementation of the above two operations in batched mode on GPU with accommodation for variable-size data structures in a batch. The batch algorithms minimize the number …

This https://arxiv.org/abs/2501.16472 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Revisiting color superconductors in bottom-up holography
We revisit the problem of constructing a color superconducting phase in bottom-up holography. We introduce a model that describes the five-dimensional dynamics of a scalar field dual to a chiral symmetry breaking condensate, which is coupled to the RR 4-form. The coupling is given by a topological WZ term, which is elegantly responsible both for scalar condensation at high density, and color Higgsing in the condensed phase. This construction realizes both properties at finite density and Higgsi…

Mechanical inhibition of dissipation in a thermodynamically consistent active solid
Luca Cocconi, Michalis Chatzittofi, Ramin Golestanian
https://arxiv.org/abs/2506.18000

Mechanical inhibition of dissipation in a thermodynamically consistent active solid
The study of active solids offers a window into the mechanics and thermodynamics of dense living matter. A key aspect of the non-equilibrium dynamics of such active systems is a mechanistic description of how the underlying mechano-chemical couplings arise, which cannot be resolved in models that are phenomenologically constructed. Here, we follow a bottom-up theoretical approach to develop a thermodynamically consistent active solid (TCAS) model, and uncover a non-trivial cross-talk that natur…

#silentSunday
#Rainbow and #baseball

This https://arxiv.org/abs/2412.17784 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

High-Energy Fixed-Angle Meson Scattering and the Constituent Counting Rule in Holographic QCD
We investigate the high-energy fixed-angle scattering of pions and $ρ$-mesons in a bottom-up holographic QCD model. To this end, we generalise the approach of Polchinski and Strassler arXiv:hep-th/0109174 to write an ansatz for meson scattering amplitudes based on superstring scattering amplitudes in asymptotically AdS space. We demonstrate that our generalisation of the Polchinski--Strassler proposal is necessary to describe $ρ$-meson scattering consistently with the Nambu--Goldstone boson e…

Can you see how I learn? Human observers' inferences about Reinforcement Learning agents' learning processes
Bernhard Hilpert, Muhan Hou, Kim Baraka, Joost Broekens
https://arxiv.org/abs/2506.13583

Can you see how I learn? Human observers' inferences about Reinforcement Learning agents' learning processes
Reinforcement Learning (RL) agents often exhibit learning behaviors that are not intuitively interpretable by human observers, which can result in suboptimal feedback in collaborative teaching settings. Yet, how humans perceive and interpret RL agent's learning behavior is largely unknown. In a bottom-up approach with two experiments, this work provides a data-driven understanding of the factors of human observers' understanding of the agent's learning process. A novel, observation-based paradi…

Good morning from Harlem
#Photography #GoodMorning #Sunrise #NYC

Looks like up to two pumps will fit nicely in the bin... this is good. Ill make holes in the bin for the pipes to exit one end.
The bin will be installed in the intake bay of the pond to draw/skim water from the surface.
These are skookum pumps. 💪
At full power (180W each) together they will move 40,000L/hr (666L or 175gal/min). That's almost twice the pool volume of 21,000L.
But I should not need to move that much through the bog. One pump will be dedicated to the bog filter while the other will go to both the bog and/or the sprayers in the pool.
That said, if I do need a third pump there will be room in the bin for three.
I may put one pump in the far corner of the pool itself with an inlet hose to reach the bottom of the pool to really ensure there is good circulation of the water. We'll see.
#poolpond #diy #pondProject #Backyard #unbox

Controlling energy delivery with bistable nanostructures
Andreas Ehrmann, Carl P. Goodrich
https://arxiv.org/abs/2506.14266 https://a…

Controlling energy delivery with bistable nanostructures
Countless biological processes are fueled by energy-rich molecules like ATP and GTP that supply energy with extreme efficiency. However, designing similar energy-delivery schemes from the bottom up, essential for the development of powered nanostructures and other {\it de novo} machinery, presents a significant challenge: how can an energy-rich structure be stable in solution yet still deliver this energy at precisely the right time? In this paper, we present a purely physical mechanism that so…

Good morning from Harlem
#Photography #GoodMorning #Sunrise #NYC

Good morning from Harlem
#Photography #GoodMorning #Sunrise #NYC