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כתבות אחרונות מאתר 'Phys'
Phys

Q&A: The origin of 'OnlyMarms' and what made it a roaring success‎

The story of Dan Blumstein's decision to share videos of marmots from the Rocky Mountain Biological Laboratory field study on an OnlyFans account called OnlyMarms has captured attention around the world over the past few weeks.

04:08
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Phys

Bridging interfacial water structure and reactivity in photocatalytic hydrogen evolution at TiO₂ interfaces‎

Hydrogen (H2) evolution via photocatalytic water splitting is an environmentally friendly and sustainable technology for solar-to-chemical energy conversion. Although interfacial interactions are recognized as key determinants of photocatalytic performance, systematic experimental studies explicitly targeting the structure and reactivity of the water-catalyst interface remain limited. A major challenge lies in probing the molecular structure of interfacial water, especially under hydrogen-evolving conditions.

03:32
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Phys

How one RNA nucleotide switch activates fluorescent dyes‎

RhoBAST is a tiny RNA molecule that activates fluorescent dyes, enabling researchers to track RNA molecules in living cells with super-resolution. An international collaboration, which includes Ronald Micura and his team from the Institute of Organic Chemistry, has now shown that a small, local "nucleotide flip" within the RNA controls this fluorescence activation.

03:15
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Phys

How big can the universe's first starbursts get?‎

As our telescopes have improved and we've been able to peer farther back in time, we've begun finding more fascinating features of the universe. But one thing we haven't found for sure is Population III (Pop III) stars. These were the earliest stars in the universe, formed completely from pristine hydrogen and helium, with no "metals" (i.e., elements heavier than those two) polluting their processes.

02:31
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Phys

Smart, self-healing packaging uses AI to detect food spoilage in real time‎

Packaging already tells us where food comes from, when it was made, what's in it and how many calories it contains. But researchers see a future where packaging can "see," in real time, what's happening inside and translate that into information that producers and consumers can act on.

01:31
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Phys

Single nanostructure enables independent control of two light resonance modes‎

Metallic nanostructures are exceptionally effective at concentrating light into tiny volumes, while dielectric nanostructures excel at storing light with minimal energy loss. Combining these complementary properties has traditionally required complicated hybrid structures in which the two optical modes become mixed, making them difficult to control independently.

01:31
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Phys

New genome study rewrites the early history of grasses, the world's most important plant family‎

An international team of scientists, including Donald Danforth Plant Science Center member emerita Elizabeth "Toby" Kellogg, Ph.D., has produced a chromosome-level genome assembly that offers a new view of the earliest evolution of grasses, the plant family that includes many of the world's most important food crops.

01:03
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Phys

AI helps find hidden human proteins and reveals what they do‎

New research shows how artificial intelligence, combined with advanced experimental science, can help find "hidden" and unexplored proteins in the human body and reveal what they actually do, according to a new study published in Nature.

00:51
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Phys

Emerging SARS-CoV-2 sublineage RE.2.2 displays distinct structural features‎

Researchers from the Institute of Microbiology of the Chinese Academy of Sciences (IMCAS) have characterized the structural and functional properties of the emerging SARS-CoV-2 sublineage BA.3.2.2 by studying RE.2.2, the lineage designation for the BA.3.2.2 branch gaining prevalence after prolonged low detection in European surveillance datasets.

00:28
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Phys

Compost microbe yields enzyme that tackles polyurethane foam and nylon‎

Researchers from Aarhus University and the Danish Technological Institute have taken a new approach in the search for enzymes capable of breaking down some of the most difficult types of plastic to recycle. They collected millions of bacteria from a landfill in Kenya, Randers Regnskov Tropical Zoo, the guts of larvae and a compost heap near Aarhus—and examined their enzymes. They found 12 that work.

00:18
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