Tootfinder

Study reveals hidden 'chemical currency' fueling the ocean's carbon cycle #ocean

Study reveals hidden 'chemical currency' fueling the ocean's carbon cycle
A new study, led by Woods Hole Oceanographic Institution (WHOI) and Columbia University, identifies a diverse set of molecules released by marine phytoplankton that fuel microbial life and help drive Earth's carbon cycle. While scientists know that carbon is moved through an invisible network of phytoplankton and other microbes in the surface ocean, the specific compounds have long been a mystery. These compounds are small, chemically difficult to detect in salty seawater, and are rapidly consu…

News organizations sue to unseal filings in DOJ's Fulton County election investigation (Jane C. Timm/NBC News)
https://www.nbcnews.com/politics/elections/news-organizations-sue-unseal-filings-doj-fulton-county-election-probe-rcna345700
http://www.memeorandum.com/260519/p19#a260519p19

Solutocapillary instability in slipping falling films
Sanghasri Mukhopadhyay, S\'everine Millet, Bastien Di Pierro, Asim Mukhopadhyay
https://arxiv.org/abs/2605.17519 https://arxiv.org/pdf/2605.17519 https://arxiv.org/html/2605.17519
arXiv:2605.17519v1 Announce Type: new
Abstract: We present a comprehensive framework for gravity-driven, surfactant-laden thin films flowing over slippery substrates, elucidating how wall slip modifies the coupled hydrodynamics and interfacial transport. A long-wave model is formulated with a conservative bulk-surface mass balance and a Navier slip condition. The Orr-Sommerfeld eigenvalue problem governs the linear regime, while a weighted-residual model captures the nonlinear evolution over a range of equilibrium surfactant coverages, Marangoni strengths, and adsorption kinetics. The analysis predicts a non-monotonic variation of the critical Reynolds number with equilibrium coverage, exhibiting a maximum at intermediate $\Gamma_e$, and a slip-induced transition from single- to double-hump solitary structures with increasing Marangoni number, accompanied by attenuated capillary ripples. Under fast adsorption kinetics, the surface field homogenizes, preserving the mean film shape and flux while flattening both the surface concentration $\Gamma$ and the bulk inventory $\chi h\phi$. A spurious interfacial mass growth reported by Pascal et al.(PRF, 2019) and D'Alessio et al.(JFM, 2020) is resolved through a revised surface balance ensuring strict conservation. Wall slip thus emerges as a key control parameter, reducing viscous resistance and mitigating Marangoni back-stress. The slip parameter $\beta$ is a useful control knob for surfactant-laden films. Slip prevents fragile multi-hump bound states, promoting a single broad crest or an almost flat, uniform sheet by carefully bonding $\beta$ to wave selection, ripple damping, and the bulk-surface surfactant balance.
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Millions of Americans Are Going Uninsured Following Expiration of ACA Subsidies (Anna Wilde Mathews/Wall Street Journal)
https://www.wsj.com/health/healthcare/millions-of-americans-are-going-uninsured-following-expiration-of-aca-subsidies-0051240d?st=Vx6dtW&reflink=desktopwebshare_permalink
http://www.memeorandum.com/260319/p36#a260319p36

Man, old universities are weird places. Went to attend a talk (featuring linguists and computer scientists debating language models) in a room I hadn't been in before, and it turns out they have a full-ass Flemish tapestry just hanging from the wall.

Ilhan Omar's office says she's 'not a millionaire' after $30M filing revised down to under $100K: report (Fox News)
https://www.foxnews.com/politics/ilhan-omars-office-says-shes-millionaire-30m-filing-revised-100k-report
http://www.memeorandum.com/260418/p52#a260418p52

Following Trump, Republicans in Congress Propose to Ban Most Voting by Mail (Carl Hulse/New York Times)
https://www.nytimes.com/2026/03/18/us/politics/trump-republicans-ban-mail-voting.html
http://www.memeorandum.com/260318/p115#a260318p115

Vance defends stock-trading spree in Trump financial filings: 'Come on, man' (Kevin Breuninger/CNBC)
https://www.cnbc.com/2026/05/19/trump-vance-stock-trades.html
http://www.memeorandum.com/260519/p108#a260519p108

Today, civil rights leader Dolores Huerta issued the following statement: (Dolores Huerta)
https://medium.com/@dolores_huerta/march-18-2026-e74c20430555
http://www.memeorandum.com/260318/p61#a260318p61

California lawmakers want to rename César Chavez Day following sexual abuse allegations (Associated Press)
https://apnews.com/article/cesar-chavez-sexual-abuse-allegations-08264e63b6f594278239af1ad23ba1fc
http://www.memeorandum.com/260319/p83#a260319p83