I waddled onto the beach and stole found a computer to use.

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Joined 1 year ago
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Cake day: June 5th, 2023

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  • Otter@lemmy.caOPtoProgramming@programming.devThe Illustrated AlphaFold
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    1 day ago

    Who should read this

    Do you want to understand exactly how AlphaFold3 works? The architecture is quite complicated and the description in the paper can be overwhelming, so we made a much more friendly (but just as detailed!) visual walkthrough.

    This is mostly written for an ML audience and multiple points assume familiarity with the steps of attention. If you’re rusty, see Jay Alammar’s The Illustrated Transformer for a thorough visual explanation. That post is one of the best explanations of a model architecture at the level of individual matrix operations and also the inspiration for the diagrams and naming.

    There are already many great explanations of the motivation for protein structure prediction, the CASP competition, model failure modes, debates about evaluations, implications for biotech, etc. so we don’t focus on any of that. Instead we explore the how.

    How are these molecules represented in the model and what are all of the operations that convert them into a predicted structure?



  • Also, we should consume it (or other types of dietary fibre)

    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3614039/

    Dietary fibre is that part of plant material in the diet which is resistant to enzymatic digestion which includes cellulose, noncellulosic polysaccharides such as hemicellulose, pectic substances, gums, mucilages and a non-carbohydrate component lignin. The diets rich in fibre such as cereals, nuts, fruits and vegetables have a positive effect on health since their consumption has been related to decreased incidence of several diseases. Dietary fibre can be used in various functional foods like bakery, drinks, beverages and meat products. Influence of different processing treatments (like extrusion-cooking, canning, grinding, boiling, frying) alters the physico- chemical properties of dietary fibre and improves their functionality. Dietary fibre can be determined by different methods, mainly by: enzymic gravimetric and enzymic—chemical methods. This paper presents the recent developments in the extraction, applications and functions of dietary fibre in different food products.

    Not that we should go around gnawing on wood like beavers, but maybe that’s why some indigestible foods seem like we should be able to eat it


  • As a follow-up question of what the composition looks like

    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6503789/

    The oral cavity has the second largest and diverse microbiota after the gut harboring over 700 species of bacteria. It nurtures numerous microorganisms which include bacteria, fungi, viruses and protozoa. The mouth with its various niches is an exceptionally complex habitat where microbes colonize the hard surfaces of the teeth and the soft tissues of the oral mucosa. In addition to being the initiation point of digestion, the oral microbiome is crucial in maintaining oral as well as systemic health. Because of the ease of sample collection, it has become the most well-studied microbiome till date.

    Oral cavity is one of the most well-studied microbiomes till date with a total of 392 taxa that have at least one reference genome and the total genomes across the oral cavity approaching 1500.[21]

    Approximately 700 species of prokaryotes have been identified in it. These species belong to 185 genera and 12 phyla, of which approximately 54% are officially named, 14% are unnamed (but cultivated) and 32% are known only as uncultivated phylotypes.[9] The 12 phlya are Firmicutes, Fusobacteria, Proteobacteria, Actinobacteria, Bacteroidetes, Chlamydiae, Chloroflexi, Spirochaetes, SR1, Synergistetes, Saccharibacteria (TM7) and Gracilibacteria (GN02).[22] At the genus level, there is a conserved oral microbial community in healthy mouths. Diversity in the microbiome is individual specific and site specific, despite the similarities. The tongue has numerous papillae with few anaerobic sites and hence harbors a diverse microflora which also includes anaerobes. The areas with low microbial diversity are the buccal and palatal mucosae.[


  • As humanity aspires to explore the solar system and investigate distant worlds such as the Moon, Mars, and beyond, there is a growing need to establish and broaden coordinate time references that depend on the rate of standard clocks. According to Einstein’s theory of relativity, the rate of a standard clock is influenced by the gravitational potential at the location of the clock and the relative motion of the clock. A coordinate time reference is established by a grid of synchronized clocks traceable to an ideal clock at a predetermined point in space. This allows for the comparison of local time variations of clocks due to gravitational and kinematic effects. We present a relativistic framework to introduce a coordinate time for the Moon. This framework also establishes a relationship between the coordinate times for the Moon and the Earth as determined by standard clocks located on the Earth’s geoid and the Moon’s equator. A clock near the Moon’s equator ticks faster than one near the Earth’s equator, accumulating an extra 56.02 microseconds per day over the duration of a lunar orbit. This formalism is then used to compute the clock rates at Earth-Moon Lagrange points. Accurate estimation of the rate differences of coordinate times across celestial bodies and their inter-comparisons using clocks onboard orbiters at relatively stable Lagrange points as time transfer links is crucial for establishing reliable communications infrastructure. This understanding also underpins precise navigation in cislunar space and on celestial bodies’ surfaces, thus playing a pivotal role in ensuring the interoperability of various position, navigation, and timing (PNT) systems spanning from Earth to the Moon and to the farthest regions of the inner solar system.






  • Otter@lemmy.catoNo Stupid Questions@lemmy.worldSports
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    5 days ago

    Great to hear!

    Some of the communities are quiet, but you’ll find that people engage with your posts when you make them. Especially if there are a good number of subscribers for them

    You can also post on !communitypromo@lemmy.ca or !newcommunities@lemmy.world if you’re reviving one, so that others can see

    Finally, if you’re in contact with the mods on Reddit for a particular team, see if they’d be interested in having the Lemmy community be the official off-site space for the subreddit. People that want to talk about the team without ads/tracking/annoying UI can come here for it








  • At some point I think I’m going to write a post about nice behaviour here. I have to think about it some more… And this is a diverse place anyways, other people might like different things.

    I’d read something like that :)

    Sometimes we also don’t think about how we could be doing something better. Another thing that comes to mind, which I sometimes forget, is upvoting the post that you are commenting on. Usually if I’m commenting, I want more people to see and join the discussion, but I forget to upvote before leaving the tab











  • Didn’t notice this was already posted, here’s another link / quoted content

    https://earthsky.org/spaceflight/russian-satellite-breakup-iss-astronauts-shelter-june-26-2024/

    Russian satellite breakup sends ISS astronauts to shelter

    On Wednesday, June 26, 2024, shortly after 9 p.m. EDT, NASA instructed the nine astronauts aboard the International Space Station to head to their shelters. This precautionary measure was in response to the breakup of a Russian satellite, RESURS-P1. The astronauts spent about an hour in their shelters before it became clear the space station was not in the path of the debris.

    More on RESURS-P1

    According to Leo Labs, a California company that provides collision avoidance service and real-time conjunction alerts for satellite operators:

    The approximately 6,000 kg [13,000 lb] satellite was in a nearly circular orbit at about 355 km [220 miles up] at the time of the event.

    While it is not yet clear what caused the breakup of the Russian satellite, the satellite ended its service back in 2021. So what was previously one defunct space object is now more than 100 pieces. With the increasing amounts of satellites, both operational and past their useful lives, accumulating in orbit, the crowded space around Earth is becoming more and more of a concern. According to the Orbiting Now website, there are currently more than 10,000 active satellites in orbit around Earth, with nearly 3,000 inactive satellites still in orbit.