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כתבות אחרונות מאתר 'Phys'
Phys

Catalog of mitochondria across life's family tree unearths unusual functions‎

A research consortium has generated the broadest look yet at the proteins that make up mitochondria, capturing the organelle's diversity across multiple branches on the tree of complex life. With major contributions from Broad Institute scientists and its Proteomics Platform, the consortium generated and analyzed the mitochondrial proteomes of one plant and five single-celled pathogens that affect millions of people globally every year.

18:01
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Phys

Eye-eating amoeba resists treatment—understanding its biochemistry could help‎

In water, soil and air all around us lives a free-living, single-celled organism called Acanthamoeba. Most of the time, Acanthamoeba keeps to itself. On rare occasions, though, the amoeba infects humans and can cause severe infections of the eyes, skin and even the brain. What's more, doctors can struggle to diagnose and treat the eye infection caused by the organism, called Acanthamoeba keratitis.

18:01
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Phys

How going digital offers families more than annual adoption letters‎

Digital technology could transform the way adopted children stay connected with their birth families, according to new research from the University of East Anglia. A study published in the journal Adoption & Fostering reveals how a custom-built online platform called Letter Swap offers more modern ways for families to connect by swapping messages, videos, voice notes and photos rather than relying on traditional annual letters.

18:01
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Phys

What is helping some Florida wildfires burn hotter, spread faster?‎

What is helping some Florida wildfires burn hotter and spread farther? A University of Florida study suggests cogongrass, an invasive grass that has spread across much of Florida and the southeastern United States, is adding more fuel to the landscape.

17:41
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Phys

Following ancient rain toward life-related chemistry clues on Mars‎

The Mars we know today is a cold, dry world of dust and rocks. However, around 3.8–3.6 billion years ago, it may have looked very different. Geological and mineral evidence suggests that, in its distant past, the planet experienced periods warm and wet enough for water to exist on its surface, potentially forming rivers, lakes and even an ocean in the northern hemisphere.

17:41
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Phys

Exploring the shapes of exotic nuclei‎

In the conventional diagram of an atom, the center depicts a nucleus—a spherical cluster of protons and neutrons. But that sphere is a simplification: nuclei can deform into exotic shapes that appear more like a pear, football or Frisbee. Understanding why and when nuclei distort is crucial for predicting and modeling how they will behave.

17:27
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Phys

A cleaner X-ray view of our galactic center's hot mess‎

The center of the Milky Way galaxy is a chaotic place. In addition to the 4-million-solar-mass black hole known as Sagittarius A* (Sgr A*), the region is full of gas, dust, strong magnetic fields and stars in various stages of life—from birth to death.

17:27
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Phys

Citizen science project recruits volunteers to search for undiscovered black holes‎

Cosmic detectives are being called on for an interstellar mission to hunt down thousands of invisible black holes lurking in our own backyard. Space scientists from the University of Southampton need amateur astronomers to search for signs that might locate them.

17:06
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Phys

Chameleon embryos reveal early developmental feature once thought unique to mammals‎

Before most women know they're pregnant, an embryo has already begun organizing itself into the structures that will shape a developing body. Scientists have few opportunities to study those earliest stages of human development, making many of life's first steps difficult to observe directly.

17:06
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Phys

Many Australians are happy in love—but will it stay this way?‎

On average, Australians seem quite happy in their relationships.

16:47
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