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Apr 29, 2022
Anesthetic Has Been Found to Drastically Change Primate Brain Waves. Here’s How
Posted by Paul Battista in category: neuroscience
The widely used anesthetic propofol has a dramatic effect on the oscillating waves circulating through the brain, a new primate study shows – important findings for understanding more about our bodies under anesthesia, and ensuring it remains safe to use.
When we’re conscious, the brain is dominated by higher frequency waves (beta waves) – but under the influence of propofol-based general anesthesia, it seems that very slow-frequency traveling waves (delta waves) are much more common.
Moving through the cortex – the outermost layer of brain tissue – these waves also shift from traveling in all kinds of different directions to all pointing the same way. Some beta waves still exist, but also in small pockets not covered by delta waves.
The Ingenuity helicopter flew over the leftovers of Perseverance’s backshell and parachute and it looks soooo cool!
Source:
We spy with our little eyes…rover landing gear!
During the #MarsHelicopter’s 26th flight, it took photos of the entry, descent, & landing gear @NASAPersevere needed to safely land on Mars. You can see the protective backshell & massive dusty parachute. https://t.co/1r5uoc5FyM pic.twitter.com/ePlEASIrr0
Rover landing gear! During the #MarsHelicopter’s 26th flight, it took photos of the entry, descent, & landing gear @NASAPersevere needed to safely land on Mars. You can see the protective backshell & massive dusty parachute. https://go.nasa.gov/3vkglFM
Apr 29, 2022
Teen tracking Musk’s private jet speculates Twitter buy was to ‘kill’ his page
Posted by Kelvin Dafiaghor in category: Elon Musk
19-year-old Jack Sweeney is concerned his Twitter account tracking Elon Musk’s private jet is “probably gone” soon and speculates that Musk bought Twitter just to destroy his jet tracking accounts dailystar.
Apr 29, 2022
F-22 Raptor’s Future Upgrades Appear In Art Posted
Posted by Gemechu Taye in category: futurism
Apr 29, 2022
A non-tilting vectored thrust system will allow for quieter flying cars
Posted by Gemechu Taye in category: transportation
Apr 29, 2022
Scientists Discovered of a Rare Superconductor That Could Change the Course of Quantum Computing
Posted by Gemechu Taye in categories: computing, quantum physics
Apr 29, 2022
A Problem That Could Plague Rapid Transport Like Bullet Trains & Hyperloop
Posted by Shubham Ghosh Roy in categories: energy, mapping, transportation
If you look at Amtrak’s route map, you’ll notice that the service isn’t really geared toward serving rural areas and smaller cities. Sure, they do stop at some smaller cities along existing rail routes, but those aren’t the point as much as a place to get fuel and let people get onto connecting services. On top of that issue, Amtrak largely uses the same tracks as freight trains, and the freight lines have been placed according to freight needs and not the needs of potential passengers. In one particularly weird case, it completely skips the Phoenix metro area, with the nearest station in Maricopa.
But I’m getting off topic a bit with that last one. The main point to gather from the map is that it’s designed mostly to connect larger cities with other large cities. Going from New York to Los Angeles isn’t a big deal. Going from El Paso to Albuquerque, well, even Amtrak tells you on the map that you’re getting on a Greyhound. Public transit really isn’t a priority in the United States, though. So maybe this isn’t a fair comparison. Let’s look at some maps in other countries for a minute:
Apr 29, 2022
Towards practical and robust DNA-based data archiving using the yin–yang codec system
Posted by Jose Ruben Rodriguez Fuentes in categories: chemistry, computing, information science
The yin-yang codec transcoding algorithm is proposed to improve the practicality and robustness of DNA data storage.
Given these results, YYC offers the opportunity to generate DNA sequences that are highly amenable to both the ‘writing’ (synthesis) and ‘reading’ (sequencing) processes while maintaining a relatively high information density. This is crucially important for improving the practicality and robustness of DNA data storage. The DNA Fountain and YYC algorithms are the only two known coding schemes that combine transcoding rules and screening into a single process to ensure that the generated DNA sequences meet the biochemical constraints. The comparison hereinafter thus focuses on the YYC and DNA Fountain algorithms because of the similarity in their coding strategies.
The robustness of data storage in DNA is primarily affected by errors introduced during ‘writing’ and ‘reading’. There are two main types of errors: random and systematic errors. Random errors are often introduced by synthesis or sequencing errors in a few DNA molecules and can be redressed by mutual correction using an increased sequencing depth. System atic errors refer to mutations observed in all DNA molecules, including insertions, deletions and substitutions, which are introduced during synthesis and PCR amplification (referred to as common errors), or the loss of partial DNA molecules. In contrast to substitutions (single-nucleotide variations, SNVs), insertions and deletions (indels) change the length of the DNA sequence encoding the data and thus introduce challenges regarding the decoding process. In general, it is difficult to correct systematic errors, and thus they will lead to the loss of stored binary information to varying degrees.
