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Another Step Towards Crossing the Blood-Brain Barrier

Researchers from the University of Pennsylvania, led by Michael Mitchell, are now breaking through the blood-brain barrier, a long-standing biological barrier. ....

Kaitlin Mrksich , Jacqueline Li , Emily Han , Michael Mitchell , Megan Craig , Rohan Palanki , Marshall Padilla , Dongyoon Kim , Chul Yoon , Sophia Tang , Burroughs Wellcome Fund Career Award , University Of Pennsylvania , National Institute , Penn Institute , Health Award , National Science Foundation Award , Mitchell Lab , Upenn School Of Engineering , School Of Engineering , Applied Science , Nano Letters , Associate Professor , Research Fellow , Study First Author , Phd Student , Lipid Nanoparticle Synthesis Core ,

A rare glimpse of a star before it went supernova defies expectations

7 hours ago
A rare glimpse of a star before it exploded in a fiery supernova looks nothing like astronomers expected, a new study suggests.
Images from the Hubble Space Telescope reveal that a relatively cool, puffy star ended its life in a hydrogen-free supernova. Until now, supernovas without hydrogen were thought to originate only from extremely hot, compact stars.
The discovery “is a very important test case for stellar evolution,” says Sung-Chul Yoon, an astrophysicist at Seoul National University in South Korea, who was not involved in the work. Theorists have some ideas about how massive stars behave right before they blow up, but such hefty stars are scant in the local universe and many are nowhere near ready to go supernova, Yoon says. Retroactively identifying the star responsible for a supernova provides an opportunity to test scenarios of how stars evolve right before exploding. ....

New Zealand , Soult Ukpyolsi , South Korea , Chul Yoon , Charlie Kilpatrick , Jan Eldridge , Monthly Notices Of The Royal Astronomical Society , Seoul National University , Northwestern University In Evanston , University Of Auckland , Hubble Space Telescope , Sung Chul Yoon , Northwestern University , Monthly Notices , Royal Astronomical , புதியது ஜீலாந்து , தெற்கு கொரியா , சார்லி கில்‌ப்யாட்‌ரிக் , ஜான் எல்ட்ரிட்ஜ் , மாதாந்திர அறிவிப்புகள் ஆஃப் தி அரச வானியல் சமூகம் , சியோல் தேசிய பல்கலைக்கழகம் , வடமேற்கு பல்கலைக்கழகம் இல் எவன்ஸ்டன் , பல்கலைக்கழகம் ஆஃப் ஆக்லாந்து , ஹப்பிள் இடம் தொலைநோக்கி , வடமேற்கு பல்கலைக்கழகம் , மாதாந்திர அறிவிப்புகள் ,