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206,725 articles from PhysOrg

Optics research demonstrates waveguides that guarantee stable propagation of azimuthons

The optical vortex plays an increasingly important role in optical information processing. As an information carrier, it improves the capacity of channels and offers an independent aspect for analysis—different from polarization, intensity, phase, and path. A new degree of freedom for encoding and encrypting optical information may be provided via nonlinear optics, using vortex beams known as...

Physicists accelerate the hunt for revolutionary artificial atomic materials

Scientists at the University of Bath have taken an important step towards understanding the interaction between layers of atomically thin materials arranged in stacks. They hope their research will speed up the discovery of new, artificial materials, leading to the design of electronic components that are far tinier and more efficient than anything known today.

Powerful storm leaves 1 dead, heavy crop damage in Midwest

Hundreds of thousands across the Midwest remained without power on Tuesday after a powerful storm packing 100 mph winds battered the region a day earlier, causing widespread damage to millions of acres to crops and killing a 73-year-old woman found clutching a young boy in her storm-battered mobile home.

Ultraviolet communication to transform Army networks

Of ever-increasing concern for operating a tactical communications network is the possibility that a sophisticated adversary may detect friendly transmissions. Army researchers developed an analysis framework that enables the rigorous study of the detectability of ultraviolet communication systems, providing the insights needed to deliver the requirements of future, more secure Army networks.

'Insect apocalypse' may not be happening in US

Scientists have been warning about an 'insect apocalypse' in recent years, noting sharp declines in specific areas—particularly in Europe. A new study shows these warnings may have been exaggerated and are not representative of what's happening to insects on a larger scale.

Researchers find clues to clarify why cohesine has a role in cancer and cardiac development

Ana Losada, from the Spanish National Cancer Research Centre (CNIO), is the scientist who identified cohesin in vertebrates, a protein that is essential in cell division. Losada has studied cohesin since she identified it in vertebrates in 1998, at the Cold Spring Harbor Laboratory in New York. "It is fascinating," she says. "Now we know that cohesin plays a role in several types of cancer, and a...

NASA's planet Hunter completes its primary mission

On July 4, NASA's Transiting Exoplanet Survey Satellite (TESS) finished its primary mission, imaging about 75% of the starry sky as part of a two-year-long survey. In capturing this giant mosaic, TESS has found 66 new exoplanets, or worlds beyond our solar system, as well as nearly 2,100 candidates astronomers are working to confirm.

Recipe for success: Interaction proteomics become a household item

Proteins in human cells do not function in isolation and their interactions with other proteins define their cellular functions. Therefore, detailed understanding of protein-protein interactions (PPIs) is the key for deciphering regulation of cellular networks and pathways, in both health and disease.

Investigating a thermal challenge for MOFs

To the naked eye, metal organic frameworks (MOFs) look a little like sand. But if you zoom in, you will see that each grain looks and acts more like a sponge—and serves a similar purpose. MOFs are used to absorb and hold gases, which is useful when trying to filter toxic gases out of the air or as a way to store fuel for natural gas- or hydrogen gas-powered engines.