Tootfinder

Pond Slider and Leaf. Descanso Gardens, La Canada Flintridge, California, USA. May, 2025. #descansogardens #turtle #pondslider

World of Good Brands, formerly Leaf Group, shuts down after owner Graham Holdings sold off its last three titles; Graham Holdings acquired it in 2021 for $323M (Mark Stenberg/Adweek)
https://www.adweek.com/media/world-of-good-brands-sale-well-good-ziff-davis/

World of Good Brands Sells Off Portfolio, Lays Off Staff, and Shutters 
The closure represents the end of the digital media company once known as Intent Media.

Sufficient conditions of $k$-leaf-connected graphs and spanning trees with bounded total $k$-excess
Guoyan Ao, Ruifang Liu, Jinjiang Yuan
https://arxiv.org/abs/2507.04400

Sufficient conditions of $k$-leaf-connected graphs and spanning trees with bounded total $k$-excess
Chvátal and Erdös [Discrete Math. 2 (1972) 111-113] stated that, for an $m$-connected graph $G$, if its independence number $α(G)\leq m-1$, then $G$ is Hamilton-connected. Note that $k$-leaf-connectedness is a natural generalization of Hamilton-connectedness of a graph. Ozeki and Yamashita [Graphs Combin. 27 (2011) 1-26] posed an open problem: What is the sufficient condition based on the independence number for an $m$-connected graph to be $k$-leaf-connected? In this paper, we prove that if…

We have a contender for leaf blowers in the category of stupid, harmful and pointless appliances. Using oil-powered string trimmer to cut the single blades of grass from between paving stones on a train platform. Noise, stench and almost zero efficiency.
#ecology

Extremal process of the local time of simple random walk on a regular tree
Yoshihiro Abe, Marek biskup
https://arxiv.org/abs/2506.09592 https://

Extremal process of the local time of simple random walk on a regular tree
We study a continuous-time simple random walk on a regular rooted tree of depth $n$ in two settings: either the walk is started from a leaf vertex and run until the tree root is first hit or it is started from the root and run until it has spent a prescribed amount of time there. In both cases we show that the extremal process associated with centered square-root local time on the leaves tends, as $n\to\infty$, to a decorated Poisson point process with a random intensity measure. While the inte…

🇺🇦 #NowPlaying on KEXP's #Early
Loaded Honey:
🎵 Loaded Honey
#LoadedHoney
https://tobaccoleafandhoneysuckle.bandcamp.com/album/tobacco-leaf-and-honey-suckle

If you ever find yourself in Sofia, Bulgaria, during a hot summer, ask your guide to take you to one of the residential district streets where trees on both sides grow as high as a 5-story building and the thick leaf canopy transform the street into a 100-200 m long green tunnel of blissful shade and sounds of birds chirping. There's plenty of coffeehouses, wine bars, eateries and restaurants to make it worth your while.

from my link log —
A multivalued language with a dependent type system. (A precursor to Epic Verse.)
https://www.leafpetersen.com/leaf/publications/dtp2013/lambda-aleph-overview.pdf
saved 2025-06-12

🇺🇦 #NowPlaying on BBCRadio3's #Breakfast
Scott Joplin & Katia & Marielle Labèque:
🎵 Maple Leaf Rag
#ScottJoplin #Katia #MarielleLabèque
https://open.spotify.com/track/6Gb7e3VquMF2iJVVWfpCWq

The programme starts in about 5m over at UncertainFM
https://uncertain.fm/

Metaconcepts of rooted tree balance
Mareike Fischer, Tom Niklas Hamann, Kristina Wicke
https://arxiv.org/abs/2506.08614 https://arxiv…

Metaconcepts of rooted tree balance
Measures of tree balance play an important role in many different research areas such as mathematical phylogenetics or theoretical computer science. Typically, tree balance is quantified by a single number which is assigned to the tree by a balance or imbalance index, of which several exist in the literature. Most of these indices are based on structural aspects of tree shape, such as clade sizes or leaf depths. For instance, indices like the Sackin index, total cophenetic index, and $\widehat{…

Happy Canada Day | Bonne Fête du Canada
This is from a little more than a year ago, when I traveled to some Canadian islands to see a solar eclipse. I know there's a Maple Leaf flying on that boat, although you can't see it in this pic.

Found this dried leaf on a sidewalk yesterday. It looks like lovely jewelry.

Pretty sure leaf blower guy is just standing there disassociating and blowing over the same spot for the last five minutes. I get it dude, but maybe just take you finger off the trigger.

Replaced article(s) found for math.CV. https://arxiv.org/list/math.CV/new
[1/1]:
- On the neighborhood of a torus leaf and dynamics of holomorphic foliations
Takayuki Koike, Noboru Ogawa

2025 Molecular Ecology Prize goes to Rosemary Gillespie, for harnessing molecular phylogenetics to understand community assembly and ecology
https://www.molecularecologist.…

🇺🇦 #NowPlaying on KEXP's #DriveTime
Black Sabbath:
🎵 Sweet Leaf
#BlackSabbath
https://pulpfusion.bandcamp.com/track/black-sabbath-sweet-leaf-pulpfusion-mix
https://open.spotify.com/track/1bJ5FuncHc6wyDHBvJ0xF6
Please 🔁 BOOST to share what you like
- your followers don't see if you ⭐ favourite a post

Calamus 37 A leaf for hand in hand!
I continue to have little patience for these Whitman entreaties to American unity. The recitation of place names does little for me. But I do appreciate that he's talking more about loving unity between men than some abstract political message.
You friendly boatmen and mechanics! You roughs! ...
I wish to infuse myself among you till I see it common for you to walk hand in hand.
That's the gay part there. It's pretty mild, but still seems striking of talking about two boatmen or mechanics walking holding hands. One might even see an appeal to rough trade.
I am beginning to understand this Whitman concept of "adhesiveness", a brotherly love that could unify a nation. I still prefer a more sexual gay reading but I think his poems work in both ways.

"Bangladesh to save critically endangered orchids and trees"
#Bangladesh #Trees #Plants #Environment

Bangladesh to save critically endangered orchids and trees
Bangladesh has initiated efforts to revive five species of plants currently listed as critically endangered on the country’s red list, as well as bring back two species declared locally extinct, reports Mongabay’s Abu Siddique. The critically endangered plants include two species of orchids: bulborox or the Sikkim bulb-leaf orchid (Bulbophyllum roxburghii), and the small-bulb orchid […]

This https://arxiv.org/abs/2301.06473 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Structure of Kähler foliations with negative transverse Ricci curvature
We investigate the structure of transversely Kähler foliations with quasi-negative tranverse Ricci curvature. In particular, we prove a de Rham type theorem decomposition on the leaf space where we characterize each factor.

Clear skies, golden hour, park #tree barely coming into leaf.
#ThickTrunkTuesday

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

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

Brownian motion, bridges and Bayesian inference in phylogenetic tree space
William M. Woodman, Tom M. W. Nye
https://arxiv.org/abs/2506.22135 https://

Brownian motion, bridges and Bayesian inference in phylogenetic tree space
Billera-Holmes-Vogtmann (BHV) tree space is a geodesic metric space of edge-weighted phylogenetic trees with a fixed leaf set. Constructing parametric distributions on this space is challenging due to its non-Euclidean geometry and the intractability of normalizing constants. We address this by fitting Brownian motion transition kernels to tree-valued data via a non-Euclidean bridge construction. Each kernel is determined by a source tree $x_0$ (the Brownian motion's starting point) and a dispe…

STEP Planner: Constructing cross-hierarchical subgoal tree as an embodied long-horizon task planner
Zhou Tianxing, Wang Zhirui, Ao Haojia, Chen Guangyan, Xing Boyang, Cheng Jingwen, Yang Yi, Yue Yufeng
https://arxiv.org/abs/2506.21030

STEP Planner: Constructing cross-hierarchical subgoal tree as an embodied long-horizon task planner
The ability to perform reliable long-horizon task planning is crucial for deploying robots in real-world environments. However, directly employing Large Language Models (LLMs) as action sequence generators often results in low success rates due to their limited reasoning ability for long-horizon embodied tasks. In the STEP framework, we construct a subgoal tree through a pair of closed-loop models: a subgoal decomposition model and a leaf node termination model. Within this framework, we develo…

The programme is live, tomorrow, May 5th at 8pm EDT over at https://uncertain.fm

Metallization of leaf-derived lignocellulose scaffolds for high performance flexible electronics and oligodynamic disinfection
Rakesh Rajendran Nair, Mihai Nita-Lazar, Valeriu Robert Badescu, Cristina Iftode, Jakob Wolansky, Tobias Antrack, Hans Kleemann, Karl Leo
https://arxiv.org/abs/2506.11640…

Metallization of leaf-derived lignocellulose scaffolds for high performance flexible electronics and oligodynamic disinfection
Vascular tubules in natural leaves form quasi-fractal networks that can be metallized. Traditional metallization techniques for these lignocellulose structures are complex, involving metal sputtering, nanoparticle solutions, or multiple chemical pretreatments. Here we present a novel, facile, and reliable method for metallizing leaf-derived lignocellulose scaffolds using silver microparticles. The method achieves properties on-par with the state-of-the-art, such as broadband optical transmittan…

🇺🇦 #NowPlaying on BBCRadio3's #WordsAndMusic
Scott Joplin, Evelyn Glennie, Evelyn Glennie, National Philharmonic Orchestra & Ray Russell:
🎵 Maple Leaf Rag
#ScottJoplin #EvelynGlennie #NationalPhilharmonicOrchestra #RayRussell

Mostly posting on Bluesky now but thought I'd share some spring colour here.
Dog violets in the local cemetery and the woods awakening (Crab Wood near Winchester)
#Spring #Wildflowers #woodland

The linearizability of singular foliations is a Morita invariant
Marco Zambon
https://arxiv.org/abs/2506.19509 https://arxiv.org/pdf/…

The linearizability of singular foliations is a Morita invariant
Hausdorff Morita equivalence is an equivalence relation on singular foliations, which induces a bijection between their leaves. Our main statement is that linearizability along a leaf is invariant under Hausdorff Morita equivalence. The proof relies on a characterization of tubular neighborhood embeddings using Euler-like vector fields.

Camphor Tree (Laurel Family). LA Arboretum, Arcadia, California, USA. April, 2025. #laarboretum #camphortree #laureltree

The sounds of chainsaws had replaced the sound of leaf blowers on my walk today. Saw a lot of big branches down and two trees, including one that looked like it split in half.

Anosov actions: minimality of foliations or suspension action
Rodrigo R. Lopes, Carlos Maquera, R\'egis Var\~ao
https://arxiv.org/abs/2505.24598 https:…

Anosov actions: minimality of foliations or suspension action
We prove that an Anosov action of $\mathbb{R}^k$ over a compact manifold $M$ transitive on regular sub-cones satisfies the dichotomy: each stable and unstable leaf is dense or the Anosov action is topologically conjugated to a suspension of a $\mathbb{Z}^k$-Anosov action. This represents an important progress toward addressing Verjovsky's extended conjecture for Anosov actions, as developed by Barbot and Maquera.

Latency Optimization for Wireless Federated Learning in Multihop Networks
Shaba Shaon, Van-Dinh Nguyen, Dinh C. Nguyen
https://arxiv.org/abs/2506.12081 htt…

Latency Optimization for Wireless Federated Learning in Multihop Networks
In this paper, we study a novel latency minimization problem in wireless federated learning (FL) across multi-hop networks. The system comprises multiple routes, each integrating leaf and relay nodes for FL model training. We explore a personalized learning and adaptive aggregation-aware FL (PAFL) framework that effectively addresses data heterogeneity across participating nodes by harmonizing individual and collective learning objectives. We formulate an optimization problem aimed at minimizin…

American Robin, LA Arboretum, Arcadia, California, USA. April, 2025. #laarboretum #bird #birdphotography

🇺🇦 #NowPlaying on BBCRadio3's #SundayMorning
Pete Judge & Pete Judge:
🎵 Twig, Leaf, Flint, Thorn
#PeteJudge
#Spotify

Spore spike of fern spotted in Shindagin Hollow State Forest
#photo #photography #plants #ferns

Northern Mockingbird. LA Arboretum, Arcadia, California, USA. March, 2025. #laarboretum #mockingbird #northernmockingbird

Pan-tropical plant functional trait variation from space
David Schimel, Andres Baresch, Adam Chlus, Phil Townsend, Fabian Schneider, Gaia Vaglio Laurin, Ben Poulter
https://arxiv.org/abs/2505.19199

Pan-tropical plant functional trait variation from space
Plant functional trait variation in tropical forests is central to predicting ecosystem responses to change. Informaiton on traits is limited relative to the diversity of climate, landforms, disturbance regimes and species present. These traits are central to modeled predictions of ecosystem change. We used a new spaceborne imagining spectrometer from the Italian Space Agency to sample roughly 1% of the tropical moist forest biome for traits along the Leaf Economics Spectrum, as well as data to…

A triangular moth I saw in the woods yesterday amid the wreckage of leaves that it ate
#photo #photography #moth #insect

🇺🇦 #NowPlaying on BBCRadio3's #Breakfast
Scott Joplin & Katia & Marielle Labèque:
🎵 Maple Leaf Rag
#ScottJoplin #Katia #MarielleLabèque
https://open.spotify.com/track/6Gb7e3VquMF2iJVVWfpCWq