Silicon scaffolds support complex microlenses
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Insight: Can Joe Biden win the transition?
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CHAMPAIGN, Ill. A proof-of-concept study conducted in a mouse model of Alzheimer’s disease offers new evidence that copper isotopes can be used to detect the amyloid-beta protein deposits that form in the brains of people living with – or at risk of developing – Alzheimer’s.
Several types of isotopes give off positively charged particles called positrons that are detectable by positron emission tomography scanners. The copper isotope used in the study, Cu-64, lasts much longer than the carbon or fluorine isotopes currently approved for use in human subjects, researchers report. Having access to longer-lasting diagnostic agents would make the process of diagnosing Alzheimer’s more accessible to people who live far from major medical centers. Any clinic with a PET scanner could have the agents shipped to it in time to use the compounds in brain scans of patients living nearby.
Yingying Zhang was a promising young graduate student who left her home, family and boyfriend in China to pursue her studies in the United States. She’s one of thousands of students who make the same journey, whose parents sacrifice both financially and emotionally to let their children go to an unknown country all in the hopes of a brighter future. Unfortunately, that future never came to pass for Yingying. One day when she was running late to see an apartment, she accepted a ride from a stranger and was never seen again.
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Jaiyan “Jenny” Shi’s “Finding Yingying” is simultaneously a tribute to the young woman who she was and what she aspired to, the isolation and culture shock she faced in the U.S., the love she had for her family that drove her to keep going and a true crime documentary that follows the Zhang family as they try to piece together what happened to their beloved daughter. But the documentary is quite sympathetic to the family, centering the