This Week in Science – Science Magazine

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Synthetic colloids are usually smooth, but nature can produce micrometer-scale particles with intricate structure and shape, such as the coccoliths produced by algae. Jiang et al. controlled the self-assembly of gold’cysteine nanoplatelets into a variety of chiral, hierarchically organized colloidal particles by changing the chiral fraction of cysteine and the nucleation temperature. Organic cations created electrostatic repulsions that favored edge assembly of the nanoplatelets, which in turn could create surfaces bearing twisted spikes.

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The surface of severe acute respiratory syndrome’coronavirus 2 (SARS-CoV-2) is decorated with trimeric spikes that bind to host cell receptors. These spikes also elicit an antibody response, so understanding antibody recognition may aid in vaccine design. Yuan et al. determined the structure of CR3022, a neutralizing antibody obtained from a convalescent SARS-CoV’infected patient, in complex with the receptor-binding domain of the SARS-CoV-2 spike. The antibody binds to an epitope conserved between SARS-CoV-2 and SARS-CoV that is distinct from the receptor-binding site. CR3022 likely binds more tightly to SARS-CoV because its epitope contains a glycan not present in SARS-CoV-2. Structural modeling showed that the epitope is only revealed when at least two of the three spike proteins are in a conformation competent to bind the receptor.

Publisher: Science
Date: 2020-05-08
Reference: Visit Source (Read Article)

This may worth something:

Meat/Mental Health Story Latest in Fake Nutritional Science

‘Meat Improves Mental Health’ mainstream media blasted out this week, without mentioning the ‘study,’ published in Critical Reviews in Food Science and Nutrition,’was funded‘by an ‘unrestricted research grant from the Beef Checkoff, through the National Cattlemen’s Beef Association.’ Such fake science from the meat industry is becoming more common as people drop meat.

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Publisher: CounterPunch.org
Twitter: @NatCounterPunch
Reference: Visit Source (Read Article)

Try the boiled egg trick with the News 2 Science Geeks

GREENSBORO, N.C. ‘ Welcome back to News 2 Science Geeks! It’s a new weekly segment that gives you some easy-to-do science experiments during this period of staying at home. Have fun, and let us know if you try this one out.’

This week we’re going to make a boiled egg squeeze into a bottle using air pressure. You’ll need adult help with this one.’

WHY DID IT WORK?We created low pressure in the bottle by heating the air with the burning piece of paper. The warm air escaped the bottle, which lowered the pressure in the bottle.’

Once the pressure in the bottle was low enough, the higher pressure in the room started pushing down on the egg until it was forced inside the bottle.’


Publisher: WFMY
Date: 5/6/2020 9:51:11 PM
Twitter: @WFMY
Reference: Visit Source (Read Article)

Does coronavirus spread through the air, and the biology of anorexia

Science’s extensive COVID-19 coverage is free to all readers. To support our nonprofit science journalism, please make a tax-deductible gift today.

On this week’s show, Staff Writer Robert Service talks with host Sarah Crespi about a new National Academy of Sciences report that suggests the novel coronavirus can go airborne, the evidence for this idea, and what this means for the mask-wearing debate. See all of our News coverage of the pandemic here. See all of our Research and Editorials here.

Publisher: Science | AAAS
Date: 2020-04-06T11:15:05-04:00
Twitter: @newsfromscience
Reference: Visit Source (Read Article)

New York City Royally Screwed Up In Their Coronavirus Response and It Created a Nationwide Outbreak

New York City’s coronavirus outbreak grew so large by early March that the city became the primary source of new infections in the United States, new research reveals, as thousands of infected people traveled from the city and seeded outbreaks around the country.

The research indicates that a wave of infections swept from New York City through much of the country before the city began setting social distancing limits to stop the growth. That helped to fuel outbreaks in Louisiana, Texas, Arizona and as far away as the West Coast.

The findings are drawn from geneticists’ tracking signature mutations of the virus, travel histories of infected people and models of the outbreak by infectious disease experts.

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Publisher: Townhall
Author: Matt Vespa
Twitter: @townhallcom
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Happening on Twitter

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Greetings Earthlings: All systems on halt. The data presented above may one day be zapped to another dimension. Just thought you should be aware. Guess what. I dropped it.