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U.S. National Science Foundation-supported researchers published a new paper that explains how atmospheric wind affects eddies, an ocean weather phenomena of spinning ocean currents. “Our theory and findings provide a roadmap for incorporating interactions between winds and ocean eddies into operational and long-term forecasting,” said Hussein Aluie, a co-author on the paper and professor at the University of Rochester.

“Accurate ocean forecasts are essential for navigation and shipping, fisheries management, disaster response, coastal management and climate prediction,” Aluie said. These economic sectors rely on accurate forecasts to plan for potentially dangerous conditions.

Aluie and a team of researchers used satellite imagery and climate models to discover that not only do atmospheric winds dampen eddies, like previously thought, but they can also energize them. Prevailing winds that move longitudinally across the globe, like westerlies and trade winds, slow eddies when they move in the opposite direction but energize them if they spin the same way.

Between the eddies are ocean weather phenomenon called strain, which account for about half of the ocean’s kinetic energy. The team found that strain is also dampened or energized by wind-like eddies.

“The new energy pathways between the atmosphere and the ocean that we discovered can help design better ocean observation systems and improve climate models,” said Shikhar Rai, the study’s first author and a doctoral student at the University of Rochester,

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A research team led by the recipient of a U.S. National Science Foundation Faculty Early Career Development grant used computer simulations to determine that white dwarf stars have greater potential to host habitable planets than previously realized. The team concluded that many more stars in the Milky Way galaxy might be home to planets that could support life.

There are approximately 10 billion white dwarf stars in the Milky Way. Because such stars are colder than others, scientists have thought they likely would not support habitable exoplanets. Led by Aomawa Shields, a University of California, Irvine professor of physics and astronomy, researchers used a supercomputer provided by the NSF National Center for Atmospheric Research in Boulder, Colorado, to simulate conditions on a theoretical rocky planet orbiting a white dwarf. Using data from real exoplanets orbiting the non-white dwarf star Kepler-62, the researchers found that their simulated rocky planet could have liquid water if it closely orbited a white dwarf and had certain rotational characteristics. Their findings were published in The Astrophysical Journal.

“Not much consideration has been given to these stars’ ability to host habitable exoplanets,” says Shields. “Our computer simulations suggest that if rocky planets exist in their orbits, these planets could have more habitable real estate on their surfaces than previously thought.”

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The U.S. National Science Foundation today launched a 24/7 crisis intervention helpline for members of the NSF research community who have experienced sexual assault, sexual harassment, or stalking.

The NSF Safer Science Helpline is an anonymous and secure helpline available to NSF awardees, grantees, scientists, contractors and those affiliated with supporting the mission of NSF, including all those supporting NSF’s mission throughout Antarctica and the Arctic.

“NSF is committed to ensuring a culture free from sexual assault, sexual harassment and stalking,” said Renée V. Ferranti, special assistant to the director for NSF Sexual Assault and Harassment Prevention and Response Program Office (NSF SAHPR). “The NSF Safer Science Helpline will give members of the NSF research community a safe way to access support and resources and help foster an environment free from sexual violence.”

Helpline support specialists provide live, confidential, one-on-one crisis intervention and emotional support, as well as information for reporting channels and helping connect victims of sexual harm to additional support resources.

Victims and survivors can access resources through phone, online chat and SMS text support mechanisms. All services are anonymous and secure, providing NSF community members with the help they need, anytime, anywhere. Services are trauma-informed and survivor-centered, aligning with NSF’s goals of ensuring confidentiality, safety and comprehensive care for victims and survivors.

Individuals can access the NSF Safer Science Helpline in the following ways: 
Phone

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Researchers funded by the U.S. National Science Foundation have created a molecular nanocage that captures the bulk of per- and polyfluoroalkyl substances, or PFAS, found in water — and it works better than traditional filtering techniques that use activated carbon. Made of organic nanoporous material designed to capture only PFAS, this tiny chemical-based filtration system removed 80 to 90% of PFAS from sewage and groundwater during the study, respectively, while showing very low adverse environmental effects.

The study was led by scientists at the University at Buffalo and published in American Chemical Society ES&T Engineering.

PFAS are chemical compounds sometimes called “forever chemicals” and are commonly used in food packaging, nonstick coatings and other applications. PFAS do not degrade easily and are notoriously difficult to remove from water sources. Studies show exposure to PFAS may cause a range of negative health impacts, including decreased fertility, developmental delays in children and increased risk for some cancers. The safe and effective removal of PFAS from groundwater, sewage and other water sources is a national challenge.

Molecular nanocages have been previously suggested as candidates for pollutant removal, including for PFAS. Their sturdy structures provide capabilities to capture, remove and chemically deactivate hazardous substances like PFAS and many others. They could also potentially filter out noxious gases from the air, the study authors say.

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