Industrial head protection is certified under ANSI/ISEA Z89.1-2014 (R2019) as either Type I or Type II based on many criteria. Understanding the differences between Type I and Type II, coupled with ...

Thanks to cryo-electron microscopy, scientists have solved the structure of amyloid and tau fibrils—the hallmark protein pathologies of Alzheimer’s disease, and at the atomic level. As for Aβ42, they ...