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כתבות אחרונות מאתר 'Phys'
Phys

Why the hepatitis E virus cannot infect mice‎

Many viruses can infect both humans and animals, including hepatitis E virus. This virus is often transmitted to humans via contaminated meat products, such as by ingesting raw or undercooked pork or wild game. However, mouse liver cells are not a suitable host for hepatitis E viruses. Researchers have now discovered why.

17:02
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Phys

Better guacamole? How avocado import rules helped cut Mexico's water pollution‎

At picnics and World Cup watch parties across the United States this summer, people have been reaching for bowls of chips and guacamole. Most of that guacamole is made from avocados grown in Mexico—on orchards that, in what might come as a surprise, contribute less water pollution today than they did a decade ago.

16:46
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Phys

First 3D map reveals hidden thermal structure of nearby interstellar medium‎

Astronomers have built the first three-dimensional map of gas temperature in the space surrounding our solar system, revealing a far messier and more dynamic picture than current models predict. The study was submitted to the arXiv preprint server on July 16.

16:46
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Phys

Oil beetle larvae smell like flowers to manipulate bees and sneak into their nests‎

For the first time, a research team from the Max Planck Institute for Chemical Ecology and Friedrich Schiller University in Jena, Germany, has demonstrated that insects can mimic floral scents to manipulate pollinators.

16:28
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Phys

Advanced mass spectrometry technique breaks free from specialist hardware‎

Researchers at the University of Warwick and spinout company Verdel Instruments have successfully demonstrated two-dimensional mass spectrometry (2DMS) on a benchtop instrument, making this powerful technique practical and affordable for everyday laboratory use.

16:20
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Phys

6.5 million Americans live in landslide hazard zones, study finds‎

New research has found that 6.5 million Americans live in homes on or near landslide-prone slopes. With a single map, local governments and residents can now see landslide hazard hotspots at the regional, state and county levels to ensure they are aware of and prepared for an emergency.

16:01
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Phys

How ancient red algae power extreme ecosystems and offer clues to life's evolution‎

Ancient single-celled red algae that thrive in scalding, acidic waters are emerging as far more than specialized survivors.

16:01
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Phys

Gene discovery could shave years off avocado breeding‎

Scientists have found a genetic switch that could shave years off avocado breeding by allowing researchers to identify one of a young tree's most important traits long before it flowers.

15:45
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Phys

A successful, sustainable catalyst for ethanol dehydrogenation‎

Ethanol is an alcohol used in a vast number of industrial and household applications. When dehydrogenated—in this case, stripped of some of its hydrogen atoms—it yields another important compound: acetaldehyde, which is used to make resins, dyes, perfumes and synthetic flavors, among many other products. But currently available catalysts for ethanol dehydrogenation suffer from deactivation, poor performance over time and unwanted side reactions.

15:45
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Phys

What is a p‑value? Expert explains the most misunderstood number in science‎

If you've ever tried to read a scientific paper, you've almost certainly run into a p-value. And if you found it confusing, you're in good company: Plenty of working scientists misunderstand it too.

15:29
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