Miguel SV
Miguel SV
@pseudolullus.bsky.social
Neuroscientist focused in network dynamics during motor learning and production - postdoc
33 followers56 following136 posts
Amazing
“When we played language stimuli to anaesthetized patients, single units & local field potentials carried information about semantic & grammatical features of natural speech, even predicting semantics of upcoming words...complex processing of sensory stimuli occurs even in the unconscious state.”😲👇🧪
"The burden of [this] disease is heaviest in sub-Saharan Africa and India, precisely where these therapies are currently least accessible. Getting it to the patients who need it most will still require a serious rethinking of how we price and distribute transformative medicines." shorturl.at/QdqgT
There have been some really wacky claims about #AI and weather forecasts. Chaotic systems are very hard to predict, their aperiodicity makes the idea of fitting a model to prior data absurd. Unsurprisingly, #physics -based models do better on unexpected extrema.. www.science.org/doi/10.1126/...
Paper on #weather and #AI confirms the suspicion: "We find however, that the AI-based model completely fails to reproduce the rapid initial growth rates and hence would incorrectly suggest an unlimited predictability of the atmosphere." #physics agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Miguel SV reposted
Absolutely right. Dendritic computation isn't exactly breaking news, but it beautifully shows how complex and dynamic information processing in single neurons is, and conversely, how utterly simplistic #AI neural networks using masses of simplified units are. #biology #neurosky
Events occurring in neurons’ extended branches, known as dendrites, can perform incredibly complex computations, sometimes as powerfully as a deep artificial neural network.
Miguel SV reposted
Happy #WorldTapir Day! From communal "buffets" that feed wildlife to seed dispersal, tapirs are vital ecosystem engineers. Despite their role, all four species are vulnerable or endangered. We’re highlighting Indigenous-led pacts and new population data protecting these "gardeners."
Sadly, depending on energy sources and raw materials with limited geographic distribution and controlled by a few countries only leads to severe scarcity for the vast majority of people... #chemsky #econsky www.nytimes.com/2026/04/22/b...
Large astrocyte networks reaching between different #brain areas, have been recently described. They could have a sizable impact on the large-scale coordination of neural activity and improve our understanding of network science. #biology #neuroscience #neurosky www.nature.com/articles/s41...
Miguel SV reposted
Replying to @epimechfc.bsky.social
Early work from Kandice Tanner and Mina Bissell showed that small clusters of epithelial cells orbit in Matrigel. We see this also with larger spheroids in collagen! bsky.app/profile/epim...
Activation of rho-like GTPases not only changes the cytoskeleton and motility of single cells, it also affects the active fluidity and collective motion of cell populations. #biology #physics #activeMatter
Pricoupenko, N., Marsigliesi, F., Marcq, P., Blanch-Mercader, C., & Bonnet, I. (2024). Src kinase slows collective rotation of confined epithelial cell monolayers. Soft Matter, #EpithelialMechanics doi.org/10.1039/D4SM...
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Can you hear forest recovery? In Costa Rica, scientists analyzed 16,000 hours of audio to measure the success of payments for ecosystem services. The data shows that naturally regenerated forests now sound more like protected primary forests than pastures, signaling a true return of biodiversity.
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Thank you @avaskham.bsky.social @thetransmitter.bsky.social for covering the ongoing discussion re lesion network mapping. It is commendable when a news publication covers both sides of an issue, and a great example of unbiased and responsible reporting.
A wave of new papers discuss the merits and limitations of lesion network mapping. #neuroskyence By @avaskham.bsky.social www.thetransmitter.org/brain-imagin...
Miguel SV reposted
Replying to @epimechfc.bsky.social
Topology-guided polar ordering in eye development: A mechanism akin to topology-guided polar ordering was recently proposed for the development of the cornea epithelium. #Spiral-eye, #EyeDevelopment @docmartin2mc @SilkeHenkes @sknepnek doi.org/10.7554/eLif...
Miguel SV reposted
Replying to @epimechfc.bsky.social
We demonstrated topology-guided polar ordering in epithelial monolayers. Migration activation generates numerous defect pairs with integer charges, which spread order through defect pair annihilation, leaving a single +1 defect at the center. @stigoveboe.bsky.social doi.org/10.1126/scia...
Amazing! This is also really helpful for our understanding of the mechanisms and evolution of morphogenesis. 😃😃 #biology #physics
New preprint out! We show how cellular nematic order can be harnessed to program tissue-wide force fields and guide 3D shape transformations. The tissue morphogenesis logic, now engineered into living, programmable materials. www.biorxiv.org/content/10.1... #ActiveMatter #TissueEngineering
The costs of robotic synthesis systems have been significantly lowered: "A tangible step towards making self-driving laboratories accessible to resource-limited laboratories, fostering broader participation in automated chemical research." #chemsky #industry www.nature.com/articles/s44...
"For a long time, it was assumed that nest building consisted of purely innate behavioral patterns. But studies in birds and our own research show that cognitive abilities such as learning, remembering and adapting also play important roles" #biology #animals phys.org/news/2026-04...
Sejong of Joseon fought against the scholar class to deploy a written system to reduce inequality and now there is a partial rollback: "reviving Hanja education could fuel private education spending [and] educational inequality among students" #Korea #history www.koreaherald.com/article/1071...
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Will community air monitoring bring 'Cancer Alley' cleaner air? Armed with sensors and real-time data, community groups further their fight against dangerous air pollution in Louisiana. Read more: cen.acs.org/environment/... #chemsky 🧪
Miguel SV reposted
New review out: "Pattern Formation Beyond Turing: Physical Principles of Mass-Conserving Reaction–Diffusion Systems". A unifying framework for protein pattern formation, from Min oscillations to Turing foams. arxiv.org/abs/2512.12558
Nice one: living shorelines built out of sturdy and self-regenerating oyster reefs. Which, aside from lowering building and repair costs, Help maintain local fisheries. #biosky #biology #sea www.pnas.org/doi/10.1073/...
Small #industry moves toward employee ownership: "We wanted to give something back to the people who have worked so hard for us. It has benefits to us, but also to the staff, who are now in control of their own destiny. The business is in their hands now. " #econsky #econ url-shortener.me/JWWM
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From how raptors soar to the iridescent plumage of birds, in "Birds Up Close," Lorna Gibson looks at birds through the eyes of an engineer at both the microscopic and macroscopic scales. Out April 28th: mitpress.mit.edu/978026204989...
Weighting the pros and cons of biomarkers was already a hot issue discussed by my epi profs, especially PSA testing for prostate cancer. Prostate cancer has effective treatment, yet testing posed an ethical conundrum. Now, pushing people towards ineffective treatments is quite something... #medsky
Overuse of the p-tau217 biomarker could push healthy people toward unnecessary drugs, scientists fear. https://scim.ag/4sZprTu
"Treating externalities as shared also makes collaboration not just possible, but rational. [] Many of the barriers to safer chemistry are inefficient for individual companies to solve alone. Addressed collectively, however, they become tractable." #chemsky #Econsky #Econ shorturl.at/z5abZ
Amazing timelapse from @coralcitycamera.bsky.social One can see the growth of staghorn coral, recovery after bleaching and glean many more small dynamic changes in morphology and environment #biology #coral youtu.be/aT4CyUkUNaY
Miguel SV reposted
Miguel SV reposted
🦜 Ever wonder how colorful songbirds like tanagers make their plumage dazzle? Hint: It's a secret technique shared with painters: go.nhm.org/dazzling-col...
By the way, this also applies to the convo about #recycling textile waste #chemsky #chemeng www.africanews.com/2023/05/24/e...
Miguel SV reposted
Replying to @nipple-ointment.bsky.social
Hiding the problem by dumping mountains of old textile waste in the 3rd world is getting harder lately, which means it risks to become more than "feel-good" baloney relatively soon in richer countries, though. th.boell.org/en/2025/09/1...
#recycling is struggling. The economy wastes almost 100 million tons textiles p/y, yet using raw materials is cheaper and has better scaling than feeding it back. This oil crisis shows the need for local and less dependent production, but challenges remain. #chemsky #chemeng shorturl.at/M7xwP
I bet they also plan to affect the whole world's #climate without the whole planet's agreement, consent or ability to veto it politically... like the company, its investors and the two countries own the entire place. Now, this *is* #politics by the book www.theatlantic.com/science/2026...
We know what is killing these babies,” says William Macharia “We are not lacking solutions.” hospitals had an outage on nearly 200 days, disrupting incubators, oxygen supply, and monitoring equipment. A shortage of specialized nurses is another key problem. www.science.org/content/arti...
#biodiversity isn't just a fancy nice-sounding word, it truly affects the behavior of the ecological networks sustaining our agriculture and environment. Predator diversity, not just amount stabilizes prey populations and ensures resilience #biology #ecology #mathsky www.pnas.org/doi/10.1073/...
Miguel SV reposted