Tootfinder

Determining the impact of post-main-sequence stellar evolution on the transiting giant planet population: #planets: https://ras.ac.uk/news-and-press/research-highlights/ageing-stars-may-be-destroying-their-closest-planets

A body made entirely of head-like organs
Using state-of-the-art single-cell and gene expression analyses, the researchers mapped the cell types of young post-metamorphic sea urchins.
They found that the adult body plan is largely "head-like."
Genes that in other animals define trunk structures are active only in internal organs such as the gut and the water vascular system.
In sea urchins, a true trunk region is missing altogether.
An 'all-body brain&…

Researchers discover an 'all-body brain' in sea urchins
An international team of researchers, including scientists from the Museum für Naturkunde Berlin, has uncovered a surprisingly complex nervous system in sea urchins. The animals appear to possess an "all-body brain" whose genetic organization resembles that of the vertebrate brain. The team also identified light-sensitive cells distributed across the entire body—comparable to structures found in the human retina.

Simplicial Perspectives on (Pseudo) Effect Algebras
Dominik Lachman
https://arxiv.org/abs/2510.02748 https://arxiv.org/pdf/2510.02748

Simplicial Perspectives on (Pseudo) Effect Algebras
The study of Frobenius algebras in the category $\mathbf{Rel}$ via their nerve functor into simplicial sets has been introduced recently. In this article, we focus on the particular case of effect algebras and pseudo effect algebras and investigate these using tools from combinatorial topology. To each (pseudo) effect algebra $E$, we associate a simplicial set with edge marking $N(E)$, called an $ε$-simplicial set, and analyze its structural properties. In particular, we provide certain charac…

🍫 Europe’s cocoa slowdown highlights global chocolate struggle
https://www.japantimes.co.jp/business/2025/07/17/markets/europe-cocoa-global-chocolate/
🆓

Europe’s cocoa slowdown highlights global chocolate struggle
Cocoa futures have more than doubled in the past two years and touched a record in December.

Second-Generation Planet Formation in Post-AGB Discs: Testing the Role of Gravitational Instability
Ali Pourmand, Devika Kamath, Orsola De Marco, Mark Wardle
https://arxiv.org/abs/2509.03894

Second-Generation Planet Formation in Post-AGB Discs: Testing the Role of Gravitational Instability
Post-Asymptotic Giant Branch (post-AGB) binary stars are evolved systems that host circumbinary discs formed through mass loss during late-stage binary interaction. Their structural, kinematic, and chemical similarities to planet-forming discs have motivated the idea that these systems may act as sites of "second-generation" planet formation. In this study, we assess whether the gravitational instability mechanism - a proposed pathway for giant planet formation in some protoplanetary discs-can …

On The Road - To Xi’An / The Wall 🧱
在路上 - 去西安 / 城墙 🧱
📷 Minolta Hi-Matic AF
🎞️Kentmere Pan 200
#filmphotography #Photography #blackandwhite

Weakened Magnetic Braking Signals the Collapse of the Global Stellar Dynamo
Travis S. Metcalfe, Jennifer L. van Saders, Marc H. Pinsonneault, Thomas R. Ayres, Oleg Kochukhov, Keivan G. Stassun, Adam J. Finley, Victor See, Ilya V. Ilyin, Klaus G. Strassmeier
https://arxiv.org/abs/2509.03717

Weakened Magnetic Braking Signals the Collapse of the Global Stellar Dynamo
Weakened magnetic braking (WMB) was originally proposed in 2016 to explain anomalously rapid rotation in old field stars observed by the Kepler mission. The proximate cause was suggested to be a transition in magnetic morphology from larger to smaller spatial scales. In a series of papers over the past five years, we have collected spectropolarimetric measurements to constrain the large-scale magnetic fields for a sample of stars spanning this transition, including a range of spectral types fro…

The coherent structures of EVP Fluid Flow Past a Circular Cylinder
Adri\'an Corrochano, Kazi Tassawar Iqbal, Saeed Parvar, Soledad Le Clainche, Outi Tammisola
https://arxiv.org/abs/2508.03362

The coherent structures of EVP Fluid Flow Past a Circular Cylinder
This study investigates the impact of elasticity and plasticity on two-dimensional flow past a circular cylinder at Reynolds number $Re = 100$. Ten direct numerical simulations were performed using the Saramito-Herschel-Bulkley model to represent viscoelastic and elastoviscoplastic (EVP) fluids. The flow evolves from a periodic von Kármán vortex street to chaotic-like regimes. Proper Orthogonal Decomposition (POD) and Higher Order Dynamic Mode Decomposition (HODMD) are applied to extract domi…

The USDA sent an email to grocery stores telling them they are prohibited from offering special discounts to customers affected by the SNAP funding lapse.
I'm aware of at least 2 stores that had offered struggling customers a discount, then withdrew it after receiving this email
https://bsky.ap…

Catherine Rampell (@crampell.bsky.social)
The USDA sent an email to grocery stores telling them they are prohibited from offering special discounts to customers affected by the SNAP funding lapse. I'm aware of at least 2 stores that had offered struggling customers a discount, then withdrew it after receiving this email

“So which is this,” ABC's Mary Bruce asked.
“Is this an opportunity to fire more workers, or an unfortunate consequence?”
Of course, the Democrats aren’t forcing Trump to lay off federal workers.
In fact, during the last shutdown in 2018, under Trump’s first administration, he did not make sweeping cuts to the federal workforce.
This time around, he’s using funding to essential programs and agencies as a political lever to intimidate Democratic lawmakers, while mani…

Mike Johnson Snaps When Shutdown Comments Thrown Back in His Face
Press secretary Karoline Leavitt also struggled to defend Republicans’ comments.