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כתבות אחרונות מאתר 'Phys'
Phys

Californians are twice as likely as Louisianans to be childfree—but demographics tell more of the story‎

Across the United States, the number of people who do not have and do not want to have children is growing. While they are twice as likely to live in California as Louisiana, individual demographic characteristics are the strongest predictors of who is childfree, according to a study published in PLOS One by Zachary Neal and Jennifer Watling Neal from Michigan State University, U.S.

21:02
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Phys

What if there's a star inside a black hole?‎

There is a question that often comes up at every public talk I do, and I have never had a good answer to it—well, not an entirely confident one. What's inside a black hole? The textbook reply is a singularity. Cross the event horizon, and everything falls inward to a point of infinite density where our equations return nonsense. It isn't so much an answer as an admission that we've run out of physics.

21:02
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Phys

Rangers and scientists map vulnerable reefs in the remote Groote Archipelago‎

For thousands of years, the Anindilyakwa people have lived in deep connection with the waters surrounding Groote Eylandt, a remote island in the Gulf of Carpentaria.

21:02
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Phys

Hybrid bioprinter creates capillary networks narrower than 10 micrometers‎

More than 100,000 people are awaiting an organ transplant in the United States, with a new candidate added to the list every 10 minutes. Even if the transplant is carried out successfully, recipients must take immunosuppressive medications, elevating their risk of broader infections, and adhere to a strict lifestyle for the rest of their lives—all while facing the possibility that their body could reject the donated organ at any time.

20:41
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Phys

Q&A: Deploying AI to create proteins never before seen in nature‎

The decades-old scientific quest to create brand-new proteins has been turbocharged in the era of artificial intelligence.

20:41
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Phys

Oxytocin nudges distrustful men to invest 15% more in anonymous trust game‎

In 2005, a research team led by University of Zurich economics professor Ernst Fehr published a study in the journal Nature that provided evidence for the first time that intranasally administered oxytocin can increase trusting behavior in humans. Oxytocin is a hormone and neurotransmitter produced naturally in the body that influences social interactions, among other things.

20:21
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Phys

Engineered lipase could improve production of higher-value specialized lipids‎

Food and pharmaceutical manufacturers increasingly seek lipids with carefully controlled fatty-acid compositions. However, natural oils usually contain mixtures of closely related fatty acids, and conventional enzymes often cannot distinguish reliably between them.

20:21
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Phys

20-year study finds pre-K impacts a child's academic future‎

Students who attended public school pre-K performed better academically through high school than those in family-based child care, according to new research from Florida International University.

20:07
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Phys

Light-controlled molecular switches offer exciting possibilities for future electronics, data storage‎

Whether it's neurons responding to electrical signals or plants stretching toward light, nature is filled with examples of biological materials that respond to their environment. Now, researchers want to develop new responsive materials for a wide range of applications, such as sensing or low-energy technologies. However, achieving a balance of useful properties at the molecular level is challenging.

20:07
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Phys

New software tool Pixasonics turns biomedical images into sound‎

Modern biomedicine increasingly relies on enormous amounts of image data. Although computers can do part of the analysis work, biologists often still need to look through the images themselves. This takes time.

19:46
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