Tootfinder

The view on the way to work along the Oak Leaf Trail is lovely at some spots...
(Though stopping for the photo I got attacked by bugs, which is not great.)
#biking #bikeTooter #mke

Design and optimization of a novel leaf-shape antenna for RF energy transfer
Junbin Zhong, Mingtong Chen, Zhengbao Yang
https://arxiv.org/abs/2507.18630 https://

Design and optimization of a novel leaf-shape antenna for RF energy transfer
In this research, the design and optimization of a novel leaf-shaped antenna inspired by natural leaf structures for radio frequency energy transfer is presented. The objectives of this study are to develop a bio-inspired antenna, optimize its performance through impedance matching for the 915 MHz frequency band, and evaluate its efficiency in capturing RF energy. The design process involves selecting an appropriate leaf shape, modeling the antenna using AutoCAD and HFSS software, and fabricati…

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…

Tiny flowers on an Eastern Redbud (aka 𝐶𝑒𝑟𝑐𝑖𝑠 𝑐𝑎𝑛𝑎𝑑𝑒𝑛𝑠𝑖𝑠) tree flowering in late April somewhere in downtown Ithaca
#photo #photography #flowers

"Trump is using the "fig leaf" of requesting some grand jury files on Epstein from the court, which is a step he wouldn't take if he had absolutely nothing to hide."
'Donald told me': Trump's biographer spills new details on 'deeper' Epstein relationship - Raw Story
https://www.rawstory.com/trump-biographer-spills-epstein-details/

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

Towards a Holistic and Automated Evaluation Framework for Multi-Level Comprehension of LLMs in Book-Length Contexts
Jiaqi Deng, Yuho Lee, Nicole Hee-Yeon Kim, Hyangsuk Min, Taewon Yun, Minjeong Ban, Kim Yul, Hwanjun Song
https://arxiv.org/abs/2508.19578

Towards a Holistic and Automated Evaluation Framework for Multi-Level Comprehension of LLMs in Book-Length Contexts
We introduce HAMLET, a holistic and automated framework for evaluating the long-context comprehension of large language models (LLMs). HAMLET structures source texts into a three-level key-fact hierarchy at root-, branch-, and leaf-levels, and employs query-focused summarization to evaluate how well models recall and faithfully represent information at each level. To validate the reliability of our fully automated pipeline, we conduct a systematic human study, showing that our automatic evaluat…

🇺🇦 #NowPlaying on KEXP's #Early
Black Sabbath:
🎵 Sweet Leaf
#BlackSabbath
https://pulpfusion.bandcamp.com/track/black-sabbath-sweet-leaf-pulpfusion-mix
https://open.spotify.com/track/1bJ5FuncHc6wyDHBvJ0xF6

It's the middle of the night. And someone down the block is running one of those old petrol-powered leaf blowers.

"Turning over a new leaf: historic English gardens adapt to the changing climate"
#UK #UnitedKingdom #Climate #ClimateChange

Evaluation of in vitro antibacterial activity and phytochemical profile of aqueous leaf extract of Asystasia variabilis
R Wijerathna, NAV Asanthi, WD Ratnasooriya, RN Pathirana, NRM Nelumdeniya
https://arxiv.org/abs/2508.19049

Evaluation of in vitro antibacterial activity and phytochemical profile of aqueous leaf extract of Asystasia variabilis
This study evaluated the in vitro antibacterial effect and the phytochemical profile of aqueous extract of fresh mature leaves of Asystasia variabilis, a Sri Lankan indigenous plant, against four common wound infective bacteria (Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa and Escherichia coli) using Kirby-Bauer disk diffusion test. Gentamicin 10 μg/ disk and distilled water was used as positive and negative controls respectively The study revealed, for the first time, that…

Asymptotic size of the Karp-Sipser Core in Configuration Model
Arnab Chatterjee, Joon Hyung Lee, Haodong Zhu
https://arxiv.org/abs/2508.19453 https://arxiv…

Asymptotic size of the Karp-Sipser Core in Configuration Model
We study the asymptotic size of the Karp-Sipser core in the configuration model with arbitrary degree distributions. The Karp-Sipser core is the induced subgraph obtained by iteratively removing all leaves and their neighbors through the leaf-removal process, and finally discarding any isolated vertices \cite{BCC}. Our main result establishes the convergence of the Karp-Sipser core size to an explicit fixed-point equation under general degree assumptions.The approach is based on analyzing the c…

American Robin. Huntington Library, San Marino, California, USA. July, 2025. #huntingtonlibrary #bird #birds

Spatiotemporal Determinants of Vector-Borne Disease Outbreaks
Bibandhan Poudyal, Gourab Ghoshal
https://arxiv.org/abs/2508.20318 https://arxiv.org/pdf/2508…

Spatiotemporal Determinants of Vector-Borne Disease Outbreaks
Vector-borne diseases arise from the coupled dynamics of human mobility and mosquito ecology, producing outbreaks shaped by both spatial distributions and temporal patterns of movement. Here we develop a coarse-grained hub--leaf reduction that isolates the universal principles governing epidemic vulnerability in interconnected populations. By deriving and analyzing the epidemic vulnerability equation, we show how human and vector population ratios, together with mobility parameters that regulat…

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…

🇺🇦 #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

NV-like Defects More Common Than Four-Leaf Clovers: A Perspective on High-Throughput Point Defect Data
Joel Davidsson
https://arxiv.org/abs/2508.14223 https://

NV-like Defects More Common Than Four-Leaf Clovers: A Perspective on High-Throughput Point Defect Data
Point defects for quantum technologies is an emerging research area, with the nitrogen-vacancy (NV) center in diamond at the forefront. However, how rare are defects with NV-like properties? In this perspective, I highlight the results of NV-like defects across 17 different materials, revealing that they are more common than finding four-leaf clovers. I also discuss expanding the search criteria to identify other defects relevant to quantum technologies. Utilizing point defect databases will be…

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

🇺🇦 #NowPlaying on KEXP's #MiddayShow
Black Sabbath:
🎵 Sweet Leaf
#BlackSabbath
https://pulpfusion.bandcamp.com/track/black-sabbath-sweet-leaf-pulpfusion-mix
https://open.spotify.com/track/1bJ5FuncHc6wyDHBvJ0xF6

Hydra-Bench: A Benchmark for Multi-Modal Leaf Wetness Sensing
Yimeng Liu, Maolin Gan, Yidong Ren, Gen Li, Jingkai Lin, Younsuk Dong, Zhichao Cao
https://arxiv.org/abs/2507.22685

Hydra-Bench: A Benchmark for Multi-Modal Leaf Wetness Sensing
Leaf wetness detection is a crucial task in agricultural monitoring, as it directly impacts the prediction and protection of plant diseases. However, existing sensing systems suffer from limitations in robustness, accuracy, and environmental resilience when applied to natural leaves under dynamic real-world conditions. To address these challenges, we introduce a new multi-modal dataset specifically designed for evaluating and advancing machine learning algorithms in leaf wetness detection. Our …

Leaf-inspired rain-energy harvesting device
Jisoo Yuk, Alicia Leem, Kate Thomas, Sunghwan Jung
https://arxiv.org/abs/2508.11474 https://arxiv.org/pdf/2508.…

Leaf-inspired rain-energy harvesting device
We study a rain-powered energy-harvesting device inspired by the natural impact of raindrops on leaves. In nature, a raindrop striking a leaf at high speed causes it to deform and vibrate. Inspired by this, our device uses an elastic beam coupled with a piezoelectric material to convert mechanical vibrations from droplet impacts into electrical energy. We conduct experiments to analyze how beam length, droplet impact location, and residual droplet mass affect energy conversion. Our results, sup…

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.

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.

A mushroom I saw in the wood near the spot where I photographed runners this morning
#fungus #photo #photography #forest

For DC's upcoming report on how historic preservation promotes equity, here's a fine case study.
Guy bought historic townhouse in Alexandria in 2021. Converted three apartments “into something that Louis XIV would be proud of.” A 6-bedroom house with inlaid marble, gold leaf ceilings, gold toilets & a gold fireplace grate from a French chateau.
https://

Ornate Alexandria townhouse is styled after Versailles
House of the Week | Six-bedroom, five-bath ‘The Prince’ has a Midas touch, selling for $4 million.

Gorgeous freshly emerged peacock butterfly in the garden just now
#UKButterflies #insects #Nature

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.

Two national parks, two American robins (Turdus migratorius): in Yosemite Valley, Yosemite National Park; and at the summit of Cadillac Mountain, Acadia National Park
#naturalist #wildlife #photography

Desert Cottontail Rabbit, foraging in the leaf litter. LA Arboretum, Arcadia, California, USA. June, 2025. #laarboretum #rabbit #cottontailrabbit

🇺🇦 #NowPlaying on #BBC6Music's #RileyAndCoe
Black Sabbath:
🎵 Sweet Leaf
#BlackSabbath
https://pulpfusion.bandcamp.com/track/black-sabbath-sweet-leaf-pulpfusion-mix
https://open.spotify.com/track/1bJ5FuncHc6wyDHBvJ0xF6

🇺🇦 #NowPlaying on KEXP's #EasternEchoes
Stones Taro:
🎵 Leaf Raining
#StonesTaro
https://nocollar4kicks.bandcamp.com/track/leaf-raining
https://open.spotify.com/track/6osgy7dFHL1EZoGPxvohyf

good anthology of urbanist writing! fresh takes on topics like land trusts, urban noise, conservative business owners, fun guerrilla urbanist occupations, the ecological value of leaf litter
saw it at dog eared books and impulse bought!
https://

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…

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…

Closeup of the leaf hopper assassin bug, from the big camera #bugs #bugscrolling #bugstodon

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

Off on an #EV camping trip in a car share car. First time I did this was maybe 8 years ago in a Nissan Leaf, today we're in a VW iD4. I still have no intention of buying a car but the evolution in the last 10 years is impressive.

Perturbation and Pruning of Nondegenerate $\mathbb{Z}/2$ Harmonic 1-forms
Jiahuang Chen
https://arxiv.org/abs/2508.16187 https://arxiv.org/pdf/2508.16187…

Perturbation and Pruning of Nondegenerate $\mathbb{Z}/2$ Harmonic 1-forms
We prove that for any nondegenerate $\mathbb{Z}/2$ harmonic $1$-form, there exists a metric perturbation producing a new nondegenerate $\mathbb{Z}/2$ harmonic $1$-form whose ordinary zero set is discrete. As an application, we show that for generic smooth nondegenerate $\mathbb{Z}/2$ harmonic $1$-forms, the leaf spaces are $\mathbb{Z}$-trees. Moreover, we show that if a $3$-dimensional rational homology sphere admits a smooth nondegenerate $\mathbb{Z}/2$-harmonic $1$-form, then there exists ano…

Planning to bike to work tomorrow but the part of the Oak Leaf Trail I normally ride on to avoid street traffic is probably underwater along the Menomonee River...

https://waterdata.usgs.gov/monitoring-location/USGS-04087120/#d…

Unarmed Stick Insect (yes, that really is its name) at Trebah Gardens in Cornwall.

🇺🇦 #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

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.

Order-Dependent Dissimilarity Measures on Phylogenetic Trees
Simone Linz, Katherine St. John, Charles Semple, Kristina Wicke
https://arxiv.org/abs/2507.11254 https://

Order-Dependent Dissimilarity Measures on Phylogenetic Trees
Ordered leaf attachment, Phylo2Vec, and HOP are three recently introduced vector representations for rooted phylogenetic trees where the representation is determined by an ordering of the underlying leaf set X. Comparing the vectors of two rooted phylogenetic X-trees T and T' for a fixed ordering on X leads to polynomial-time computable measure for the dissimilarity of T and T', albeit dependent on the choice of the leaf ordering. For each of ordered leaf attachment, Phylo2Vec, and HOP, we comp…

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

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…

The Dispersion Leverage Coronagraph (DLC): A nulling coronagraph for use on primary objective grating telescopes
Leaf Swordy, Heidi Jo Newberg, Becket Hill, Richard K. Barry, Marina Cousins, Kerrigan Nish, Frank Ravizza, Sarah Rickborn
https://arxiv.org/abs/2507.11745

The Dispersion Leverage Coronagraph (DLC): A nulling coronagraph for use on primary objective grating telescopes
We present the Dispersion Leverage Coronagraph (DLC), a novel variation of the Achromatic Interfero Coronagraph (AIC) that is designed for optical systems featuring large, dispersive primary objective gratings. DLC was originally designed for the Diffractive Interfero Coronagraph Exoplanet Resolver (DICER), a notional 20m class infrared space telescope utilizing the enhanced one-dimensional angular resolution of large diffraction gratings in order to discover and characterize near-Earth exoplan…

just split seconds apart, almost the same yet completely different images, just because a leaf or three moved in the wind
#bloomScrolling #photography #cornflower

Replaced article(s) found for cond-mat.str-el. https://arxiv.org/list/cond-mat.str-el/new
[1/1]:
- Tensor network analysis of the maple-leaf antiferromagnet spangolite
Philipp Schmoll, Harald O. Jeschke, Yasir Iqbal

Dosimetric Evaluation of MapCHECK in MapPHAN for Conformal Arc SABR Quality Assurance
Nathan I. N. Henry, Christopher M. Thompson, Steven Marsh, Jack D. Aylward
https://arxiv.org/abs/2508.15254

Dosimetric Evaluation of MapCHECK in MapPHAN for Conformal Arc SABR Quality Assurance
This study investigates the sensitivity and specificity of the MapCHECK phantom housed in MapPHAN to errors in conformal arc Stereotactic Ablative Body Radiotherapy (SABR). A specific focus is applied to Organ At Risk (OAR) dosimetry. Multi-Leaf Collimator (MLC) class shift errors up to 2 mm, and isocentre shift errors of up to 1 mm, were introduced to 23 simulated 6 MV X-ray conformal arc lung SABR plans in Raystation. Overall, 198 plans were delivered on a Varian Clinac iX linear accelerator …

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.

🇺🇦 #NowPlaying on #BBC6Music's #RadcliffeAndMaconie
William Orbit:
🎵 Water From A Vine Leaf
#WilliamOrbit
https://exoticorthocone.bandcamp.com/track/william-orbit-water-from-a-vine-leaf-exotic-orthocone-remix
https://open.spotify.com/track/2XyXV61Fvo5ytBLvVRgTbX

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…

Low-Cost Sensing and Classification for Early Stress and Disease Detection in Avocado Plants
Abdulrahman Bukhari, Bullo Mamo, Mst Shamima Hossain, Ziliang Zhang, Mohsen Karimi, Daniel Enright, Patricia Manosalva, Hyoseung Kim
https://arxiv.org/abs/2508.13379

Low-Cost Sensing and Classification for Early Stress and Disease Detection in Avocado Plants
With rising demands for efficient disease and salinity management in agriculture, early detection of plant stressors is crucial, particularly for high-value crops like avocados. This paper presents a comprehensive evaluation of low-cost sensors deployed in the field for early stress and disease detection in avocado plants. Our monitoring system was deployed across 72 plants divided into four treatment categories within a greenhouse environment, with data collected over six months. While leaf te…

Spanning subgraphs and spectral radius in graphs
Sizhong Zhou
https://arxiv.org/abs/2507.11078 https://arxiv.org/pdf/2507.11078

Spanning subgraphs and spectral radius in graphs
A spanning tree $T$ of a connected graph $G$ is a subgraph of $G$ that is a tree covers all vertices of $G$. The leaf distance of $T$ is defined as the minimum of distances between any two leaves of $T$. A fractional matching of a graph $G$ is a function $h$ assigning every edge a real number in $[0,1]$ so that $\sum\limits_{e\in E_G(v)}{h(e)}\leq1$ for any $v\in V(G)$, where $E_G(v)$ denotes the set of edges incident with $v$ in $G$. A fractional matching of $G$ is called a fractional perfect …

Isoperiodic meromorphic forms with at least three simple poles
Liza Arzhakova, Gabriel Calsamiglia, Bertrand Deroin
https://arxiv.org/abs/2508.00099 https://

Isoperiodic meromorphic forms with at least three simple poles
In this paper we prove the connectedness of isoperiodic moduli spaces of meromorphic differentials with at least three simple poles on homologically marked smooth curves whose periods are either not contained in a real line, or not contained in the rational space generated by the peripheral periods. From this topological property we deduce dynamical properties of the underlying foliation in the moduli space meromorphic differentials, by describing leaf closures associated to those spaces.

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

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

Holy Crap! I biked to work... I took the (borrowed) ebike and it took 24 minutes. (I had estimated 35-40.) My route was about 7 miles. (The bike said 7, my phone said 6.7.)
This drive usually takes about 15 minutes by car. I probably spent at least a few minutes waiting at stoplights at the busier streets but taking the Oak Leaf Trail was smooth as hell.
#biking

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.

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…

🇺🇦 #NowPlaying on #BBC6Music's #TheMorningAfterMix
William Orbit:
🎵 Water From A Vine Leaf
#WilliamOrbit
https://exoticorthocone.bandcamp.com/track/william-orbit-water-from-a-vine-leaf-exotic-orthocone-remix
https://open.spotify.com/track/2XyXV61Fvo5ytBLvVRgTbX

"US to screen for ‘anti-Americanism’ in immigration applications"
Feels like "Americanism" here is a fig leaf for something.
#USA #uspol #Americanism #nationalism #figLeaf #excuses

🇺🇦 #NowPlaying on #KEXP's #AstralPlane
Black Sabbath:
🎵 Sweet Leaf
#BlackSabbath
https://pulpfusion.bandcamp.com/track/black-sabbath-sweet-leaf-pulpfusion-mix
https://open.spotify.com/track/1bJ5FuncHc6wyDHBvJ0xF6
🎶 KEXP playlist 👇
https://open.spotify.com/playlist/6VNALrOa3gWbk794YuIrwg

Defining a phylogenetic tree with the minimum number of small-state characters
Yangjing Long, Tong Wang
https://arxiv.org/abs/2508.15533 https://arxiv.org/…

Defining a phylogenetic tree with the minimum number of small-state characters
Phylogenetic trees represent evolutionary relationships and can be uniquely defined by sets of finite-state biological characteristics. Despite prior work showing that sufficiently large trees can be determined by $r$-state character sets, the minimal leaf thresholds $n_r$ remain largely unknown. In this work, we establish the 3-state case as $n_3 = 8$, providing a concrete base for higher-state analyses. We then resolve the 5-state problem by constructing a counterexample for $n=15$ and provin…

🇺🇦 #NowPlaying on #KEXP's #AfternoonShow
Black Sabbath:
🎵 Sweet Leaf
#BlackSabbath
https://pulpfusion.bandcamp.com/track/black-sabbath-sweet-leaf-pulpfusion-mix
https://open.spotify.com/track/1bJ5FuncHc6wyDHBvJ0xF6

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

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.

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

Geometry of the space of phylogenetic trees with non-identical leaves
Maria Alejandra Valdez Cabrera, Amy D Willis
https://arxiv.org/abs/2508.06747 https://

Geometry of the space of phylogenetic trees with non-identical leaves
Phylogenetic trees summarize evolutionary relationships. The Billera-Holmes-Vogtmann (BHV) space for comparing phylogenetic trees has many elegant mathematical properties, but it does not encompass trees with differing leaf sets. To overcome this, we introduce Towering space: a complete metric space that extends BHV space to trees with non-identical leaf sets. Towering space is a structured collection of BHV spaces connected via pruning and regrafting operations. We study the geometry of paths …

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

"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 […]

Upside down butterfly in someone's front garden in collegetown
#photo #photography #insects #bugs

🇺🇦 #NowPlaying on #BBC6Music's #AmbientFocus
Machinone:
🎵 Leaf Boat
#Machinone
https://machinone.bandcamp.com/album/leaf-boat-and-tiny-lighthouse
https://open.spotify.com/track/5VUaNEmmyLtWyF74fFLO3l

Graph-based method for constructing consensus trees
Elio Torquet, Jesper Jansson, Nadia Tahiri
https://arxiv.org/abs/2508.08569 https://arxiv.org/pdf/2508.…

Graph-based method for constructing consensus trees
A consensus tree is a phylogenetic tree that synthesizes a given collection of phylogenetic trees, all of which share the same leaf labels but may have different topologies, typically obtained through bootstrapping. Our research focuses on creating a consensus tree from a collection of phylogenetic trees, each detailed with branch-length data. We integrate branch lengths into the consensus to encapsulate the progression rate of genetic mutations. However, traditional consensus trees, such as th…

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{…