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bibliolater,
@bibliolater@qoto.org avatar

"Abraham de Moivre (born May 26, 1667, Vitry, Fr.—died Nov. 27, 1754, London) French mathematician who was a pioneer in the development of analytic trigonometry and in the theory of probability"

Britannica, The Editors of Encyclopaedia. "Abraham de Moivre". Encyclopedia Britannica, 23 Nov. 2023, https://www.britannica.com/biography/Abraham-de-Moivre. Accessed 27 November 2023. #History #Science #STEM #Maths #Math #Mathematics #HistoryOfScience #HistSci @science

rmathematicus,
@rmathematicus@historians.social avatar
bibliolater,
@bibliolater@qoto.org avatar

"Just 300,000 years ago – a blink in evolutionary time – at least nine species of humans wandered the planet. Today, only our own, Homo sapiens, remains. And this raises one of the biggest questions in the story of human evolution: where did everyone else go?" https://www.theguardian.com/science/2023/nov/18/where-did-other-human-species-go-vanished-ancestors-homo-sapiens-neanderthals-denisovans @science

barrygoldman1,
@barrygoldman1@sauropods.win avatar

@bibliolater @science
isn't this paragraph a contradiction?

“It’s not a coincidence that several of them disappeared around the time that Homo sapiens started to spread out of Africa and around the rest of the world,” says Prof Chris Stringer, head of human origins at the Natural History Museum in London. “What we don’t know is if that was a direct connection."

well they think its a contradiction or not?

barrygoldman1,
@barrygoldman1@sauropods.win avatar

@bibliolater @science what does it mean for H. sapiens to OUTCOMPETE H. neanderthalensis? populations of either of them back 40,000 yrs ago couldn't have been dense enough for much competition could they have been?

unless sapiens wanted to live in ALL THE EXACT places as neanderthal!

bibliolater,
@bibliolater@qoto.org avatar

Farnsworth, A., Lo, Y.T.E., Valdes, P.J. et al. Climate extremes likely to drive land mammal extinction during next supercontinent assembly. Nat. Geosci. (2023). https://doi.org/10.1038/s41561-023-01259-3 @science

ergoplato,
@ergoplato@mastodon.online avatar

@bibliolater @science Good news everyone…wait…

bibliolater,
@bibliolater@qoto.org avatar

World’s largest study shows the more you walk, the lower your risk of death, even if you walk fewer than 5,000 steps https://www.eurekalert.org/news-releases/997859 @science

Edelruth,
@Edelruth@mastodon.online avatar

@bibliolater @science

Hm.

Everyone's risk of death is in fact 100%
It's the quality of the journey that matters, and that is not necessarily directly related to its length.

meliache, (edited )
@meliache@hep.social avatar

@meredithw @bibliolater @science Good point, as a medical layperson I would have not thought of that. Since the causal interpretation seems mechanistically plausible, it is tempting. I have yet to read the full paper but its abstract and conclusion are more carefully phrased than the reporting about the paper. I wonder if one can factor out negative correlation somehow in study design or analysis.

bibliolater,
@bibliolater@qoto.org avatar

"Finally, and perhaps most importantly, it is stressed that artificial algorithms attempt to mimic only the conscious function of parts of the cerebral cortex, ignoring the fact that, not only every conscious experience is preceded by an unconscious process but also that the passage from the unconscious to consciousness is accompanied by loss of information."

Athanassios S Fokas, Can artificial intelligence reach human thought?, PNAS Nexus, Volume 2, Issue 12, December 2023, pgad409, https://doi.org/10.1093/pnasnexus/pgad409 @science @engineering

bibliolater,
@bibliolater@qoto.org avatar

"I argue that inclusion of Occam's razor is an essential factor that distinguishes science from superstition and pseudoscience. I also describe how the razor is embedded in Bayesian inference and argue that science is primarily the means to discover the simplest descriptions of our world."

McFadden, J. (2023). Razor sharp: The role of Occam's razor in science. Ann NY Acad Sci, 1530, 8–17. https://doi.org/10.1111/nyas.15086 @science

bibliolater,
@bibliolater@qoto.org avatar

"The findings gave a unique understanding of life and death in this early Christian Viking community and indicated that it was common to suffer from dental caries, tooth loss, infections of dental origin and tooth pain. These Vikings also manipulated their teeth through filing, tooth picking and other occupational behaviors."

Bertilsson C, Vretemark M, Lund H, Lingström P (2023) Caries prevalence and other dental pathological conditions in Vikings from Varnhem, Sweden. PLOS ONE 18(12): e0295282. https://doi.org/10.1371/journal.pone.0295282 @archaeodons @science

bibliolater,
@bibliolater@qoto.org avatar

"To address questions about the real appearance of St Anthony, we applied body mass estimation equations to the osteometric measurements taken in 1981, during the public recognition of the Saint’s skeletal remains. Both the biomechanical and the morphometric approach were employed to solve some intrinsic limitations in the equations for body mass estimation from skeletal remains. The estimated body mass was used to assess the physique of the Saint with the body mass index."

Mongillo J, Vescovo G, Bramanti B (2021) Belly fat or bloating? New insights into the physical appearance of St Anthony of Padua. PLOS ONE 16(12): e0260505. https://doi.org/10.1371/journal.pone.0260505 @science

bibliolater,
@bibliolater@qoto.org avatar

"Medieval hospitals were founded to provide charity, but poverty and infirmity were broad and socially determined categories and little is known about the residents of these institutions and the pathways that led them there. Combining skeletal, isotopic and genetic data, the authors weave a collective biography of individuals buried at the Hospital of St John the Evangelist, Cambridge."

Inskip S, Cessford C, Dittmar J, et al. Pathways to the medieval hospital: collective osteobiographies of poverty and charity. Antiquity. 2023;97(396):1581-1597. doi: https://doi.org/10.15184/aqy.2023.167 @archaeodons @science

sarahjelm, Swedish
@sarahjelm@mastodon.social avatar

Not really what you usually meet on here … some @science for you @Gargron! Cuddle your domestic ones and think about those, enduring Scottish winter weather …


https://www.theguardian.com/environment/2023/dec/10/like-unscrambling-an-egg-scientists-alter-dna-to-save-scottish-wildcats

bibliolater,
@bibliolater@qoto.org avatar

The secrets of Einstein's unknown equation – with Sean Carroll.

"The real Einstein's Equation is part of general relativity, which relates the curvature of spacetime to the mass and energy distributed within it.

Sean explains why the geometry of spacetime has anything to do with gravity, and how this famous equation expresses the way that spacetime curves." https://youtu.be/BRudidBcfXk @science @physics

bibliolater,
@bibliolater@qoto.org avatar

"In this study, we developed a soft robotic model of the right heart that accurately mimics RV biomechanics and hemodynamics, including free wall, septal and valve motion."

Singh, M., Bonnemain, J., Ozturk, C. et al. Robotic right ventricle is a biohybrid platform that simulates right ventricular function in (patho)physiological conditions and intervention. Nat Cardiovasc Res (2023). https://doi.org/10.1038/s44161-023-00387-8 @science @engineering

bibliolater,
@bibliolater@qoto.org avatar

"In this study, we developed a soft robotic model of the right heart that accurately mimics RV biomechanics and hemodynamics, including free wall, septal and valve motion."

Singh, M., Bonnemain, J., Ozturk, C. et al. Robotic right ventricle is a biohybrid platform that simulates right ventricular function in (patho)physiological conditions and intervention. Nat Cardiovasc Res (2023). https://doi.org/10.1038/s44161-023-00387-8 @science @engineering

bibliolater,
@bibliolater@qoto.org avatar

Brozio JP, Stos-Gale Z, Müller J, Müller-Scheeßel N, Schultrich S, et al. (2023) The origin of Neolithic copper on the central Northern European plain and in Southern Scandinavia: Connectivities on a European scale. PLOS ONE 18(5): e0283007. https://doi.org/10.1371/journal.pone.0283007 @archaeodons @science

bibliolater,
@bibliolater@qoto.org avatar

"A radical theory that consistently unifies gravity and quantum mechanics while preserving Einstein’s classical concept of spacetime is announced today in two papers published simultaneously by UCL physicists." https://www.ucl.ac.uk/news/2023/dec/new-theory-seeks-unite-einsteins-gravity-quantum-mechanics @physics @science

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