science

NoviOcean’s wave power technology, developed over several years, has been tested in wave pools and a real environment near Stockholm. A small version powers homes on Svanholmen island, proving the concept works at sea.

On one square kilometer, 15 wave power plants can generate 15 MW, compared to offshore wind’s 10 MW. Combined, they can produce 25 MW, sharing the costs of the sea area and transmission cable.

According to the firm, the hybrid approach delivers more consistent energy, as waves generate power for days after the wind subsides. Additionally, wave plants can be placed closer to shore without visually disturbing the coastline.

Where to look for C/2023 A3 in the night sky

For observers in the Northern Hemisphere, comet C/2023 A3 can be found in the constellation Sextans and will rise one hour before the sun, according to Astronomy.com.

The comet will be best viewed in mid-October, rising up from the western horizon and be visible in the southwestern sky at nightfall, weather permitting. That will likely be its best and brightest appearance until it starts to fade from view by Nov. 7, according to SkyandTelescope.com.

Some just want to promote conflict, cause chaos, or even just get attention.

There has been a lot of research on the types of people who believe conspiracy theories, and their reasons for doing so. But there’s a wrinkle: My colleagues and I have found that there are a number of people sharing conspiracies online who don’t believe their own content.

They are opportunists. These people share conspiracy theories to promote conflict, cause chaos, recruit and radicalize potential followers, make money, harass, or even just to get attention.

There are several types of this sort of conspiracy-spreader trying to influence you.

Let's not say the quiet part out loud.

This is a data visualization of three papers on this topic by the Nature team. The three papers are listed below (all are open access!). You are not misreading them (including the second paper), the titles mean what they say.

• Mitsis P. The Nobel Prize time gap. https://doi.org/10.1057/s41599-022-01418-8
• Tol RSJ. The Nobel family. https://doi.org/10.1007/s11192-024-04936-1
• Ioannidis JPA, Cristea I-A, Boyack KW. Work honored by Nobel prizes clusters heavily in a few scientific fields. https://doi.org/10.1371/journal.pone.0234612

The new moon occurs on Wednesday, Oct. 2, at 2:49 p.m. Eastern Daylight Time (1849 GMT), according to the U.S. Naval Observatory, and for observers in the southeastern Pacific islands and southern Chile and Argentina there will be an annular solar eclipse.

counts me out.

Now for the first time scientists researching the brain of a fly have identified the position, shape and connections of every single one of its 130,000 cells and 50 million connections.

It's the most detailed analysis of the brain of an adult animal ever produced.

One leading brain specialist independent of the new research described the breakthrough as a "huge leap" in our understanding of our own brains.

Interesting application of machine learning to actually reduce computational intensity for once...

New analysis of Betelgeuse’s brightness variations and other data points to a small, close companion for this giant star.

"... Researchers are hoping to do that now that they have a new map — the most complete for any organism so far — of the brain of a single fruit fly (Drosophila melanogaster). The wiring diagram, or ‘connectome’, includes nearly 140,000 neurons and captures more than 54.5 million synapses, which are the connections between nerve cells.

... The map is described in a package of nine papers about the data published in Nature today. Its creators are part of a consortium known as FlyWire, co-led by neuroscientists Mala Murthy and Sebastian Seung at Princeton University in New Jersey."

See the associated Nature collection: The FlyWire connectome: neuronal wiring diagram of a complete fly brain, which also has links to the nine papers

All nine papers are open access!

ELI12 TLDR: Decent accuracy was found ~80% when using these to differentiate between people with Long COVID versus people who had recovered. People with Long COVID tend to have high Artemin which is linked to nerve cell communication problems and the elevated levels found may provide a clue into the cognitive problems many of these patients have. High Galectin-9 levels (which were also found here) are often associated with immune issues such as overactivation, which seems to fit well with all the immune abnormalities we see in these patients.

Abstract: This study aimed to assess plasma galectin-9 (Gal-9) and artemin (ARTN) concentrations as potential biomarkers to differentiate individuals with Long COVID (LC) patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) from SARS-CoV-2 recovered (R) and healthy controls (HCs). Receiver operating characteristic (ROC) curve analysis determined a cut-off value of plasma Gal-9 and ARTN to differentiate LC patients from the R group and HCs in two independent cohorts. Positive correlations were observed between elevated plasma Gal-9 levels and inflammatory markers (e.g. SAA and IP-10), as well as sCD14 and I-FABP in LC patients. Gal-9 also exhibited a positive correlation with cognitive failure scores, suggesting its potential role in cognitive impairment in LC patients with ME/CFS. This study highlights plasma Gal-9 and/or ARTN as sensitive screening biomarkers for discriminating LC patients from controls. Notably, the elevation of LPS-binding protein in LC patients, as has been observed in HIV infected individuals, suggests microbial translocation. However, despite elevated Gal-9, we found a significant decline in ARTN levels in the plasma of people living with HIV (PLWH). Our study provides a novel and important role for Gal-9/ARTN in LC pathogenesis.

links to www.quantamagazine.org, a site with many interesting articles.

A society has been formed to share the ideas of quantum physicist, philosopher David Bohm (1917-1992).

"I can tell you one thing. David Bohm knows a lot more than just a little about physics." - Richard Feynman

Gargantuan, a space term

cross-posted from: https://lemmy.world/post/20317598

https://en.wikipedia.org/wiki/Corona_Borealis