#papers
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o-craven-canto · 1 day ago
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Well, it seems that for mammals we have a definitive list:
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(Something's weird with that tree. Most species seem in the right relative position, except echidna and numbat, which should be all the way to the side. Unfortunately the original paper is still paywalled. I'll see if I can get it through my university's library.)
Carcinization this, carcinization that, what about anteaterization
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Southern tamandua (Tamandua tetradactyla, eastern South America): an actual anteater
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Philippine pangolin (Manis culionensis, Philippines), a loose relative of Carnivorans
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Aardwolf (Proteles cristata, south and east Africa): a hyena
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Short-beaked echidna (Tachyglossus aculeatus, Australia): an egg-laying Monotreme, close to the platypus
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Numbat (Myrmecobis fasciatus, also Australia): a Marsupial
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Sun bear (Helarctos malayanus, Southeast Asia): a frickin' bear
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heyitzfaye · 2 months ago
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Done with this scene finally !!!
(My brain just wanted me to finish the second part of the illustration sm even tho the first one is still just a sketch lol)
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ilovechesseburger · 1 year ago
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ʚ ⍴ᥲ⍴ᥱrs + ⍴ᥒgs ɞ
і rᥱᥴ᥆mmᥱᥒძ ᥕᥲs𝗍ᥱძ sᥙmmᥱr,sᥙᥴһ ᥲ g᥆᥆ძ s᥆ᥒg
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neat-deadandlive-things · 6 months ago
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"But maybe I can fix him."
- me, referring to an unpublished paper that has haunted my lab for 8 years and no one else wants to touch.
Narrator: She did not, in fact, fix the paper. Instead they both left eachother much worse than they found eachother.
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webresourcesforyou · 1 month ago
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Stacked envelopes pngs ⋆˚𝜗𝜚˚⋆ (no credit needed)
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catspngs · 9 months ago
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Books, Letters & Papers (5/?)
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pinglet · 2 months ago
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Papers Reimagined 2
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3liza · 9 months ago
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Hello please could you send me a link to the recent researches you mentioned about teflon being dangerous at normal cooking conditions I'm really interested and they seem hard to find thank you
At normal cooking tempera- tures, PTFE-coated cookware releases various gases and chemicals that present mild to severe toxicity. Only few stud- ies describe the toxicity of PTFE but without solid conclu- sions. The toxicity and fate of ingested PTFE coatings are also not understood. Moreover, the emerging, persistent, and well- known toxic environmental pollutant PFOA is also used in the synthesis of PTFA. There are some reports where PFOA was detected in the gas phase released from the cooking utensils under normal cooking temperatures. Due to toxicity concerns, PFOA has been replaced with other chemicals such as GenX, but these new alternatives are also suspected to have similar toxicity. [...]
While in another report, PFOA was reported to release into the gas phase at 7–337 ng (11–503 pg/cm2) per pan from four brands of nonstick frying pans under normal cooking temperatures (179 to 233 °C surface temperature). After repeated use, one brand showed a significant decrease in gas-phase PFOA, whereas with other brands, there was no significant decline in gas phase PFOA. This study suggested that residual PFOA is not completely removed during the fabrication process of the nonstick coating for cookware. These residuals remain on the surface and may be off-gassed when heated at normal cooking temperatures (Ewan et al. 2007).
teflon/PTFE/PTFA/PFOA type chemicals are going to be the asbestos/lead/cigarettes of our generation probably, but worse because it is affecting the global climate and ecology web and not just poisoning people in their cars and houses. just a massive, massive coverup that has been going on for decades at this point and with consequences that are basically inescapable. you already have teflon in your organs and blood and bones and so do i. limiting further exposure is probably a good idea but i dont think we have longitudinal studies yet on "mortality of people who cooked on teflon for 40 years vs people who didnt" so we just dont know.
sorry to be a doomer and sorry to trigger anyone's contamination ocd but this is one of those things where it potentially may not be helpful to sugar-coat the information
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lifeisstrangearchive · 1 year ago
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Backgrounds in Max's Journal
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o-craven-canto · 24 days ago
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A cool paper dealing with the conditions and evolutionary background for the evolution of large body sizes, looking at the largest occupiers of different ecological niches in the three recent geological eras (Paleozoic, Mesozoic, and Cenozoic).
Common traits of GIANTS:
Timing: most giants exist near the end of their era. Usually the mass extinctions that divide an era from another take out all largest organisms first, and it takes time for the survivors to grow out again. (Stably, at least. The first burst of growth is fast, but the real giants come later.)
Bodyplan: most giants are vertebrates. Vertebrate giants are generally larger than invertebrate giants, and dinosaur giants are by far the largest on land thanks to their skeletal and respiratory structure. They tend to be groups with fast metabolism and high oxygen consumption.
Environment: for most groups, it's easier to grow gigantic in water than in air. Sea giants are mostly found in highly productive shallows; land giants are not so closely linked to ecological productivity, possibly because they need open environments, to, well, exist.
"Gigantism as a hallmark of competitive superiority appears to have lost its luster on land after the Mesozoic in favor of alternative means of achieving dominance, especially including social organization and coordinated food-gathering."
The Giants identified by the author, by niche (all pictures from Wiki unless noted otherwise):
Ground-dwelling terrestrial predators
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Paleozoic: Anteosaurus sp. (Therapsid, ca. 260 Ma [million years ago], 2000 kg) Mesozoic: Tyrannosaurus rex (Theropod dinosaur, 70 Ma, 7700 kg) Cenozoic: Arctotherium angustidens (short-faced bear, 2 Ma, 1000-2000 kg)
2. Terrestrial herbivores
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Paleozoic: Tapinocephalus sp. (Therapsid, ca. 260 Ma, 1600-2000 kg) Mesozoic: Argentinosaurus huinculensis (Sauropod dinosaur, 100 Ma, 40 m - 90,000 kg) Cenozoic: Indricotherium (Paraceratherium) transouralicum (stem-rhinoceros, 25 Ma, 7.4 m - 15-20,000 kg)
3. Flying predators
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Paleozoic: Meganeuropsis permiana (Insect, 300 Ma, 0.71 m wingspan) Mesozoic: Quetzalcoatlus northropi (pterosaur, 70 Ma, 10-11 m wingspan) Cenozoic: Pelagornis saundersi (pseudotoothed bird, 25 Ma, 6.4 m wingspan)
4. Marine pelagic (open-water) predators
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Paleozoic: Helicoprion sp. (stem-ratfish, 270 Ma, 10 m) Mesozoic: Shonisaurus/Shastasaurus sikanniensis (Ichthyosaur, 220 Ma, 17-20 m) Cenozoic: Physeter macrocephalus (sperm whale, living, 24 m - 16,500 kg)
5. Marine herbivores
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Paleozoic: n/a Mesozoic: Leviathania sp. (Gastropod mollusk, 150 Ma, 0.4 m) [pic] Cenozoic: Hydrodamalis gigas (Steller's seacow, recently extinct, 10 m - 10,000 kg)
6. Bottom-dwelling marine predators
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Paleozoic: "Endoceratid" (Endoceras or Cameroceras sp., Cephalopod mollusk, 450 Ma, 8-9 m) Mesozoic: Ptychodus mortoni (shark, 100 Ma, 11 m) Cenozoic: Odobenus rosmarus (walrus, living, 3.8 m - 1900 kg)
7. Chemosymbiotic marine shell-bearing animals
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Paleozoic: n/a Mesozoic: Capsiconcha withami (Bivalve mollusk, 120 Ma, 0.30 m) [pic] Cenozoic: Bathymodiolus boomerang (Bivalve mollusk, living, 0.37 m) [pic of related species]
8. Solitary photosymbiotic marine animals
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Paleozoic: Alatoconcha sp. (Bivalve mollusk, 270 Ma, 1 m) [pic of related species] Mesozoic: Titanosarcolites sp. (Bivalve mollusk, 70 Ma, 2 m) Cenozoic: Tridacna gigas (giant clam, living, 1.4 m)
9. Marine pelagic planktivores
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Paleozoic: Titanichthys sp. (Placoderm, 360 Ma, 2.5 m) Mesozoic: Leedsichthys sp. (bony fish, 160 Ma, 9 m) Cenozoic: Balaenoptera musculus (blue whale, living, 33 m - 140,000 kg)
10. Marine benthic (bottom-dwelling) suspension-feeders
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Paleozoic: Gigantoproductus sp. (lamp shell, 300 Ma, 0.37 m) Mesozoic: Platyceramus platinus (Bivalve mollusk, 100 Ma, 3 m) Cenozoic: Pinna nobilis (fan mussel, living, 1.2 m)
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miseumelody · 12 days ago
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🗣️🗣️PIZZA PIZZA PIZZA LOVEEEEEEEEEE AAH YEAHH🗣️🗣️
( Sell available on Vinted for the original above ↑ : https://www.vinted.be/items/6656921946-roblox-forsaken-oeuvre-a5 )
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a-very-sparkly-nerd · 8 months ago
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"But I only buy what others choose to sell / And now she belongs to me"
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"Everybody gather 'round / Everybody look and see / What becomes of trespassers with no respect for property!"
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heartnosekid · 7 months ago
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a stimboard based on the music video for kakete ageru by DAOKO for anon!
🌅-📚-🌅 / 📚-🌅-📚 / 🌅-📚-🌅
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cutestudent · 2 months ago
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Surgery study night with chocolate cake for emotional support. I failed this exam too , i was so tired and didn’t study that much tho they gave us more than enough time to study but I’m just burnt out .
My heart’s broken, it’s my favorite subject 💔
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malleverte · 3 months ago
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Papers (Again)
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