K-point mesh and Monkhorst-Pack
Updated: 2023-07-31 10:12:22
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Skip to content Menu Follow us on Threads Our Bloggers Google News Substack FaceBook Contribute Contact Search Exploring vacuum energy July 28, 2023 CNRS Quantum vacuum fluctuations , conceptual . illustration According to quantum theory , a vacuum is actually packed full of energy . Scientists are currently working on an experiment designed to show that it can even slow light down and deflect . it For the Greek philosopher Aristotle , Nature abhors a vacuum . More prosaically , you might say that a vacuum is what remains when everything has been removed , in other words , nothing . However , according to quantum mechanics , even when a cube of space has been emptied of all its material content , there is still something left , namely concentrated energy that , far from being nothing , has
Skip to content Menu Follow us on Threads Our Bloggers Google News Substack FaceBook Contribute Contact Search What leads to a good Yelp review for a plastic surgeon July 28, 2023 Wolters Kluwer An analysis of Yelp reviews reveals various factors influencing plastic surgery patients’ positive or negative feedback , according to a report in the September issue of Plastic and Reconstructive Surgery® , the official medical journal of the American Society of Plastic Surgeons ASPS The study , conducted by senior author Brent R . DeGeorge , MD , PhD , from the University of Virginia , Charlottesville , suggests that while the plastic surgeon’s gender or race does not appear to impact overall quality ratings , other surgeon and practice-related factors play a significant . role The research team
Skip to content Menu Follow us on Threads Our Bloggers Google News Substack FaceBook Contribute Contact Search Bees and Wasps Independently Invent Ingenious Nest-Building Solutions July 28, 2023 PLOS ONE Photo credit : Michael L . Smith In a study published in the journal PLOS Biology on July 27, 2023, researchers found that honey bees and social wasps construct hexagonal cells that appear similar at first glance but have significant differences . Honey bees use wax to build double-sided vertical combs , while wasps utilize paper to construct single-sided horizontal combs with downward-facing openings for each . cell These hexagonal cells have evolved independently in bees and wasps . The shape of these cells optimizes strength and storage space while minimizing the use of building
Skip to content Menu Follow us on Threads Our Bloggers Google News Substack FaceBook Contribute Contact Search Worm resurrected from Siberian permafrost laid dormant for 46,000 years July 28, 2023 PLOS ONE General morphology of P . kolymaensis , female . Scanning electron pictures A , C light microscopy photographs E , F and graphic presentations B , D , G of holotype : A , B entire body , C , D anterior ends , E anterior body , F perivulvar body region , G tail . Abbreviations : l.f.âlateral field , ovâovary , proâprocorpus of the pharynx , t.b.âterminal bulb of the pharynx , uâuterus with eggs , vâvulva , v.p.âventral pore . Scale bars : A , D , E , F , Gâ 20 μm , Bâ 100 μm , Câ 2 μm A new study reveals that a soil nematode , revived from Siberian permafrost , had
Skip to content Menu Follow us on Threads Our Bloggers Google News Substack FaceBook Contribute Contact Search Astronomers reveal new features of galactic black holes July 27, 2023 University of Nevada Artist's depiction of microquasar event captured by FAST Telescope . Black holes are the most mysterious objects in the universe , with features that sound like they come straight from a sci-fi . movie Stellar-mass black holes with masses of roughly 10 suns , for example , reveal their existence by eating materials from their companion stars . And in some instances , supermassive black holes accumulate at the center of some galaxies to form bright compact regions known as quasars with masses equal to millions to billions of our sun . A subset of accreting stellar-mass black holes that can