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כתבות אחרונות מאתר 'Phys'
Phys

Rising temperatures could be driving up antibiotic resistance in soil, 11-year study finds‎

Every year, millions suffer, and thousands lose their lives to infections that were once easily treatable with the right dose of medication. The drugs are the same; human physiology is the same; the only difference is that microbes, such as bacteria, viruses, and fungi, have now developed resistance to drugs designed to kill them. This phenomenon, known as antimicrobial resistance, is rapidly rising, ringing sirens for emergency action across the globe.

20:23
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Phys

Synthetic biology promised to rewrite life—with the death of its pioneer, J. Craig Venter, how close are scientists?‎

When scientist J. Craig Venter and his team announced in 2010 that they had created the first cell controlled by a fully synthetic genome, it marked a turning point in how scientists think about life.

20:03
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Phys

How a newly discovered organelle could help reduce cow methane emissions‎

When cows burp, they send a substantial amount of methane gas into the air, which makes them a leading contributor to greenhouse gas emissions. According to research published in the journal Science, a newly discovered hydrogen-producing structure within the microbes of cow stomachs may influence how much of that gas is expelled.

18:52
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Phys

Cities are getting hotter—and bigger. New research reveals the scale of the challenge‎

We tend to think of climate change impacts as dramatic and destructive. Storms and floods that bring down landslides and swamp streets, or raging wildfires that tear through forests and farmland.

18:36
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Phys

'GangTok': Insights into the presence of gang culture on TikTok‎

In a new study, a University of Cincinnati sociologist and his research team are shedding light on how TikTok content produced by gang members could be used to better inform law enforcement and policymakers for more appropriate action. The team led by John Leverso, an assistant professor in the UC School of Criminal Justice, has published their research in Crime, Media, Culture: An International Journal.

17:13
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Phys

New imaging method maps reversed DNA replication forks in single cells‎

Researchers at The University of Texas MD Anderson Cancer Center have developed a new imaging method, known as RF-SIRF, that quantitatively detects and maps reversed DNA replication forks with single-cell resolution. The results also demonstrated a unique epigenetic code for DNA replication stress that can be further examined to understand mechanisms of genomic stability, aging and treatment response.

17:13
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Phys

This 'living plastic' activates and self-destructs on command‎

Many plastic products are designed to be used only once, yet the material itself lasts for years. But a new strategy is addressing this problem by creating products that self-destruct on command, known as living plastics. These materials incorporate activatable, plastic-degrading microbes alongside the polymers. One team reporting in ACS Applied Polymer Materials used two bacterial strains that worked together and completely broke down the material within just six days, without making microplastics.

15:10
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Phys

Nest‑building chimpanzees seem to anticipate future weather‎

Every evening, as they move from place to place through the forest, chimpanzees stop to build a nest—most often in a tree—to sleep in. Using a selection of branches, leaves and twigs, they create comfortable and safe spaces to get some shuteye.

15:10
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Phys

A bright moon may dim the Eta Aquarid meteor shower made up of Halley's comet debris‎

The Eta Aquarid meteor shower soon will light the sky with debris from Halley's comet. But a bright moon will spoil the fun this year, making the display harder to glimpse.

14:02
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Phys

Humpback whale 'Timmy' released in the North Sea after weeks stranded off Germany‎

A rescue team on Saturday released from a barge in the North Sea a humpback whale that had been stranded in shallow waters near Germany since March, witnesses said.

14:02
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