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@Dragofix@veganism.social
2026-03-19 23:38:00

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…

@memeorandum@universeodon.com
2026-05-19 13:15:42

News organizations sue to unseal filings in DOJ's Fulton County election investigation (Jane C. Timm/NBC News)
nbcnews.com/politics/elections
memeorandum.com/260519/p19#a26

@deabigt@universeodon.com
2026-02-21 01:00:56

Alaska Air Group Rewards 32000 Employees With Three Weeks Bonus Pay Following Landmark Performance Year aeroxplorer.com/articles/alask

@arXiv_physicsfludyn_bot@mastoxiv.page
2026-05-19 08:13:44

Solutocapillary instability in slipping falling films
Sanghasri Mukhopadhyay, S\'everine Millet, Bastien Di Pierro, Asim Mukhopadhyay
arxiv.org/abs/2605.17519 arxiv.org/pdf/2605.17519 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.
toXiv_bot_toot

@cdarwin@c.im
2026-05-21 01:56:34

A lot of the attention to changes in higher education has focused on cultural issues, such as debates over free speech.
“But there’s also a real economic and geopolitical dimension to what’s happening, in terms of the shifting away from the scientific enterprise and the leading global role that the United States has played for decades.”
Federal funding isn’t flowing to MIT as it typically has, Kornbluth said.
Some federal agencies are talking about taking geography — not …

MIT president blames federal policy shifts for big drop in research on campus
Federal funding cuts have curtailed research at elite universities such as MIT, dulling America’s competitive edge globally.

@memeorandum@universeodon.com
2026-03-19 13:15:51

Millions of Americans Are Going Uninsured Following Expiration of ACA Subsidies (Anna Wilde Mathews/Wall Street Journal)
wsj.com/health/healthcare/mill
memeorandum.com/260319/p36#a26

@leftsidestory@mstdn.social
2026-04-21 00:30:02

City Silhouettes III 🏙️
城市轮廓线 III 🏙️
📷 Pentax 6x7
🎞️ Lucky SHD 400 (6x7)
If you like my work, Support by buying me a coffee or a roll of film from PayPal paypal.com/paypalme/ydcdingsite

Lucky LUCKY SHD 400 (6x7) English A close-up of a corrugated metal wall with a neon sign that reads "Film Never Die" in large, bold letters. The sign is illuminated and stands out against the textured, industrial surface of the wall. Below the main sign, there is a smaller sticker or label with the same text. The background is slightly blurred, but another sign with partial text "Grain is Good" is visible. 中文 一面瓦楞金属墙的特写，墙上有一个霓虹灯标志，用粗体大字写着“Film Never Die”。这个发光的标志在粗糙的工业金属墙面上非常显眼。主标志下方有一个较小的贴纸…
Lucky LUCKY SHD 400 (6x7) English A shadow of a tree branch is cast sharply against a brick wall. The shadow creates a striking, abstract pattern, with the branches extending diagonally across the wall. The wall itself is made of uniformly laid bricks, and some greenery is visible at the bottom right corner, suggesting the presence of plants or a garden nearby. 中文 一根树枝的影子清晰地投射在一面砖墙上。影子形成了一个鲜明的抽象图案，树枝斜向延伸穿过墙面。墙本身由整齐的砖块砌成，右下角可见一些绿色植物，暗示附近有植物或花园。
Lucky LUCKY SHD 400 (6x7) English A narrow, dimly lit alleyway in an urban setting. The alley is flanked by old, weathered buildings with visible wear and peeling paint. Overhead, a network of electrical wires and makeshift awnings can be seen. The ground is paved with bricks, some of which appear damp or stained. The alley extends into the distance, creating a sense of depth and leading the eye toward a brighter area at the end. 中文 一个狭窄、光线昏暗的城市小巷。巷子两侧是老旧、风化的建筑，墙面有明显的磨损和剥落的油漆。头顶上方有电线和临时搭建的遮…
Lucky LUCKY SHD 400 (6x7) English An outdoor scene featuring a historic building with a distinctive architectural style, including arched windows and a pitched roof. The building is constructed of brick and stone. In the foreground, bare trees frame the scene, and a few people can be seen walking near the building. The sky is clear, and the overall atmosphere is calm. 中文 一个户外场景，主体是一栋具有独特建筑风格的历史建筑，建筑上有拱形窗户和斜屋顶。建筑由砖石砌成。前景中光秃秃的树木框出了这个场景，几个人在建筑附近行走。天空晴朗，整体氛围宁静。
@memeorandum@universeodon.com
2026-05-19 22:30:44

Vance defends stock-trading spree in Trump financial filings: 'Come on, man' (Kevin Breuninger/CNBC)
cnbc.com/2026/05/19/trump-vanc
memeorandum.com/260519/p108#a2

@memeorandum@universeodon.com
2026-03-19 18:25:56

California lawmakers want to rename César Chavez Day following sexual abuse allegations (Associated Press)
apnews.com/article/cesar-chave
memeorandum.com/260319/p83#a26

@memeorandum@universeodon.com
2026-04-18 20:20:55

Ilhan Omar's office says she's 'not a millionaire' after $30M filing revised down to under $100K: report (Fox News)
foxnews.com/politics/ilhan-oma
memeorandum.com/260418/p52#a26