For Karen Pressley, Duke’s new Cardiovascular Magnetic Resonance Center revealed critical details of her heart that could enable her to have an angioplasty.
Physicians at her home medical center in Fort Walton Beach, Fla. were reluctant to perform a heart procedure on 55-year-old Pressley because conventional techniques could not determine the extent of possible heart muscle death from a recent silent heart attack. So Pressley was referred to Duke University Medical Center, where cardiologists used magnetic resonance imaging (MRI) technology to clearly distinguish dead from damaged, but still living, heart muscle.
“My doctors in Florida didn’t want to perform an angioplasty until they could get a better view of my heart,” Pressley said. “The MRI scan they performed at Duke showed that there was very little muscle death. That meant there was a good chance that angioplasty could restore function to my heart. It is a great relief to know that I can have the procedure.”
Richard Merritt | EurekAlert!
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In a joint experimental and theoretical work performed at the Heidelberg Max Planck Institute for Nuclear Physics, an international team of physicists detected for the first time an orbital crossing in the highly charged ion Pr⁹⁺. Optical spectra were recorded employing an electron beam ion trap and analysed with the aid of atomic structure calculations. A proposed nHz-wide transition has been identified and its energy was determined with high precision. Theory predicts a very high sensitivity to new physics and extremely low susceptibility to external perturbations for this “clock line” making it a unique candidate for proposed precision studies.
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Graphene, a two-dimensional structure made of carbon, is a material with excellent mechanical, electronic and optical properties. However, it did not seem suitable for magnetic applications. Together with international partners, Empa researchers have now succeeded in synthesizing a unique nanographene predicted in the 1970s, which conclusively demonstrates that carbon in very specific forms has magnetic properties that could permit future spintronic applications. The results have just been published in the renowned journal Nature Nanotechnology.
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