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 E-Mail IMAGE: In this visualization of antibody target sites, the SARS-CoV-2 spike protein is tethered to the viral membrane with a slender stalk. Patches of intense purple color at the surface of... view more  Credit: Mateusz Sikora, Sören von Bülow, Florian E. C. Blanc, Michael Gecht, Roberto Covino and Gerhard Hummer A new, detailed model of the surface of the SARS-CoV-2 spike protein reveals previously unknown vulnerabilities that could inform development of vaccines. Mateusz Sikora of the Max Planck Institute of Biophysics in Frankfurt, Germany, and colleagues present these ...

Credit: Dr Sebastian Rosier Researchers have confirmed for the first time that Pine Island Glacier in West Antarctica could cross tipping points, leading to a rapid and irreversible retreat which would have significant consequences for global sea level. Pine Island Glacier is a region of fast-flowing ice draining an area of West Antarctica approximately two thirds the size of the UK. The glacier is a particular cause for concern as it is losing more ice than any other glacier in Antarctica. Currently, Pine Island Glacier together with its neighbouring Thwaites glacier are responsible for abou...

 E-Mail IMAGE: Mechanics is key to whisker tactile sensation. When a whisker is deflected, its deformation profile within the follicle determines the activity of different groups of mechanoreceptors. view more  Credit: Yifu Luo and Nadina Zweifel Researchers have developed a new mechanical model that simulates how whiskers bend within a follicle in response to an external force, paving the way toward better understanding of how whiskers contribute to mammals' sense of touch. Yifu Luo and Mitra Hartmann of Northwestern University and colleagues present these findings in the open-acce...

 E-Mail IMAGE: Consuming spoiled beef is dangerous, but there are currently no simple and efficient methods to assess beef freshness. view more  Credit: Unsplash Although beef is one of the most consumed foods around the world, eating it when it's past its prime is not only unsavory, but also poses some serious health risks. Unfortunately, available methods to check for beef freshness have various disadvantages that keep them from being useful to the public. For example, chemical analysis or microbial population evaluations take too much time and require the skills of a professional...

Key Takeaways: Discounting or couponing is not the most effective way to tap the power of retargeting in online marketing. Customized seller recommendations may be more powerful than discounting. Seller auctions that allow marketers to self-select in the retargeting process improve cost efficiency. CATONSVILLE, MD, April 1, 2021 - Online marketers have seen the pattern: 95%-98% of online visitors search for something, but the search never converts into a purchase and they leave the site without buying. For marketers, this results in speculation and assumptions that can lead to wasted time and...