#PRKM
ReaxFF reveals HCN beats NH2 at birthing toxic pyridine rings in NH3 flames, steering soot and cancer risk. 🧪🔥
Details: www.maxapress.com/article/doi/10.48130/prk...
#hcn #nh2 #cancerrisk #flames
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#HCN
Latest posts tagged with #HCN on Bluesky
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Posts tagged #HCN
Recent #Research by Espen Hartveit examined subcellular localization, kinetic properties and functional dynamics of #HCN channels in rod bipolar cells of rat #retina 🔎 👁️
📜 Read the study here: physoc.onlinelibrary.wiley.com/doi/10.1113/...
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Photo of several trunks and canopies of a multi-stemmed palm. The leaves are arching and pinnately compound. A few yellow inflorescences are visible below the leaves. Photo by Scott Zona CCBYNC2.
Chrysalidocarpus lutescens is a fast-growing, clustering palm. It would be great as a source of hearts-of-palm (“palm cabbage”), EXCEPT the growing point (the “heart”) is loaded with cyanogenic glycosides + enzyme. Do not eat it! ☠️ #HCN #Arecaceae #TropicalBotany #Botany 🌾🧪🌱
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![Photo of the base of a plant with the soil drawn back to reveal tuberous roots. A sign next to the plant says: “These are not just roots, they are cassava tubers [sic]. Originally from tropical South America and now pan-tropical, cassava is an important starch food source.”](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:3am7ou3yushm5444fpg4kogs/bafkreicqskhls7rzyxnl3anh3ptoc33ntdgxqgwjunen56fgtxa5m2rlke)
Photo of the base of a plant with the soil drawn back to reveal tuberous roots. A sign next to the plant says: “These are not just roots, they are cassava tubers [sic]. Originally from tropical South America and now pan-tropical, cassava is an important starch food source.”
Cassava (Manihot esculenta) is cyanogenic, so the tuberous roots must be washed & cooked to remove the glycoside (which is water-soluble). Early agriculturalists selected crops with natural pesticides. 📷: The Ewan CCBYNCSA2 ☠️ #HCN #Euphorbiaceae #TropicalBotany #Botany 🌾🧪🌱
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Photo of the forest floor with a rubber tree fruit valve and a mottled seed.
The seeds of Hevea brasiliensis (rubber) are cyanogenic, and the glycoside serves a dual purpose: it protects the seed, and if not needed for defense, the nitrogen in the glycoside is recovered & used for growth. 📷: Ria Tan CCBYNCSA2. ☠️ #HCN #Euphorbiaceae #TropicalBotany #Botany 🌾🧪🌱
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Photo of a small herbaceous plant in situ bearing bright yellow flowers. Photo by Scott Zona CCBYNC2.
Piriqueta cistoides subsp. caroliniana has cyanogenic leaves & flowers. The flowers last only 1 day, so putting cyanogenic glycosides in their tissues seems wasteful, especially when N is usually limiting. Even fallen flowers are HCN+. ☠️ #HCN #Passifloraceae #Botany 🌾🧪🌱
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Photo of leafy shoots bearing racemes of small drupes ripening from red to black. Photo by Scott Zona CCBYNC2.
The fruits of Prunus serotina contain a cyanogenic glycoside but lack the β-glucosidase enzyme. Cedar waxwings can feed on the fruits & excrete the glycoside intact. They lack the appropriate enzyme to release the HCN. What happens to the cyanogenic 💩? ☠️ #HCN #Rosaceae #Botany 🌾🧪🌱
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Photo of three Japanese beetles on the leaves of Passiflora incarnata. The leaves show extensive evidence of herbivory. Photo by Scott Zona CCBYNC2.
Popillia japonica (Japanese Beetle) feeds with impunity on Passiflora incarnata. The beetle either lacks a glucosidase digestive enzyme OR sequesters the glycoside to prevent HCN release. Just shows you that no plant defense is perfect! ☠️ #HCN #Passifloraceae #Coleoptera #Botany 🌾🧪🌱
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Photo of two small glass vials containing some leaf tissue. In the left vial, the paper strip suspended from the vial cap is white. In the right vial, it’s blue. Leaves are placed alongside each vial. Photo by Scott Zona CCBYNC2.
Passiflora is cyanogenic, but the Feigl-Anger test detects only those with both cyanogenic glycoside + enzyme. Passiflora suberosa (R) has both (so the test paper turns blue). Passiflora incarnata (L) has the glycoside but lacks the enzyme (paper stays white). ☠️ #HCN #Botany 🌾🧪🌱
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Collage of two photos, both showing the same small glass vial containing a few apple seeds. In the left photo, the paper strip suspended from the vial cap is white. In the right photo, it’s blue. Photo by Scott Zona CCBYNC2.
You may have heard that apple seeds are poisonous. Yes, they are cyanogenic, but don’t worry. The amount is small, & like most mammals, we can detoxify tiny amounts in our digestive system. HCN is fatal only when the dose overwhelms our ability to detoxify it. ☠️ #HCN #Rosaceae #Malus
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Collage of two photos, both showing the same small glass vial grasped by two fingers. At the bottom of the vial is a small mass of leaf tissue. In the left photo, the paper strip suspended from the vial cap is white. In the right photo, it’s blue. Photo by Scott Zona CCBYNC2.
When plant tissue is munched, the enzyme &cyanogenic glycoside come together to release the toxin. The Feigl-Anger Test indicates HCN: the white paper turns blue in the presence of HCN gas. This is Nandina domestica leaves at time 0 (left) and 5 min (right). ☠️ #HCN #Berberidaceae
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I was a newspaper reporter (eventually editor) for years (and if I got paid every time I mentioned that fact, I wouldn’t have to be anything anymore), and I was taught from the word Go that the lede of one’s story is unexaggeratably vital, and it must stand out amidst the other noise on the page (analog or digital) and ‘grab’ the reader. The word they used to communicate this idea was nearly always ‘grab,’ or some slight variation on it (and if you’re still here, then at least some part of you had to be wondering why the hell this mouthy trans ginger has a soft spot for Roland Emmerich’s bad films).”
Medium Story : “Me, Myself & Roland Emmerich’s Films | Moonfall (2022) Movie Review”
It’d be really funny if any of you following me didn’t know that I was a #newspaper #reporter & #editor (1st for #HCN, then #Hearst/ #HoustonChronicle) for years, bc I talk about it ALL THE TIME 😆
Here, I impart some wisdom re: a good #lede 🤓
kcookandcatsco.medium.com/me-myself-ro...
#journalism
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Want to make a difference in the West? High Country News is inviting new voices to its Board of Directors. No need to be a journalist or a big donor — just bring your perspective, passion, and care.
➡️ Apply by Aug 29
➡️ buff.ly/WHX80xJ
#BoardOpening #WesternVoices #HCN
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Photo of two leaves and two small glass vials. In each vile, a bit of leaf tissue is at the bottom of the vial and a strip of paper is suspended from the lid. In the left vial, the paper is bright blue. It’s white in the right vial. Photo by Scott Zona CCBYNC2.
Passiflora has cyanogenic glycosides that release cyanide when exposed to an enzyme. Feigl-Anger test strips turn blue with HCN. Passiflora suberosa (R) leaves have the glycoside + enzyme. Passiflora incarnata (L) leaves have the glycoside but lack the enzyme. #HCN #Passifloraceae #Botany 🌾🧪🌱
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You should follow us on #Medium 😎
Not only is our long form #filmcriticism on there, so is Kay’s whole portfolio of published work (from #HCN to #Houston #Chron) AND all the tidbits that spring from our readings of other #mediumwriters 🤓🐈🐈⬛🐈🐈⬛
kcookandcatsco.medium.com
#KCookandCatsCo #Bible
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I give my students two pieces of advice about news sources:
1. It's fine to use algorithm-based sources ("push"), but make sure you visit a few sites regularly outside the algorithms.
2. For news (as opposed to opinions), include include some sites that publish corrections. Like #HCN!
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Going backwards through my old #Twitter timeline as I'm archiving my old writing, and it's like reading through an old journal I used to keep.
Tony Gaines was my photog, and most of the photos on my #HCN stories are from him.
HCN was a family, & if it hadn't been, we'd have both been fired 😆 #lol
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“The only people who win when EPA $$ is shut off are corporate polluters & lobbyists.” #EPA has an aging workforce. A pause in hiring & encouraged resignations will cost the EPA institutional knowledge & hamper ability to protect the environment as senior officials leave https://buff.ly/3ElfBHq #HCN
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O Hospital Estadual do Centro-Norte Goiano (HCN) realiza mais uma captação de órgãos, oferecendo esperança e nova chance de vida! A solidariedade das famílias transforma dor em amor.
mastermaverick.com.br/2025/01/hcn-...
#DoaçãoDeÓrgãos #Solidariedade #VidaNova #HCN #JuntosPelaVida
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This story bears repeating. #HCN "The Forest Service is cutting its seasonal workforce and public lands will suffer"
www.hcn.org/articles/the...
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Photo of a plant with palmately lobed leaves. Bristly hairs are visible on the young parts of the plant. The flowers at the apex of the stem are white and star-shaped. Scott Zona CC BY-NC 2.0.
Euphorbiaceae are known for their varied & complicated chemical defenses. This is Cnidoscolus stimulosus of the SE USA. This bad-ass little plant is loaded for bear: It has stinging hairs (like nettle), gooey latex, AND cyanogenic glycosides. #Euphorbiaceae #HCN #botany 🌾🧪🌱
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Life is on the move in our April issue.
📌Incarcerated Japanese Americans made bird pins of beauty
📌Youth lead the charge against climate change
📌Natural gas exports investigations and where to build large-scale solar energy projects
www.hcn.org/issues-56-4/
#NewMonthNewIssue #KnowTheWest #HCN
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