The Cross Product Between Two Vectors Definition Let u = ai + bj + ck and v = di + ej + fk be vectors then we define the cross product v x w by the determinant of the matrix:
Huperzia serrata is a rare Chinese herb which contains a powerful alkaloid called Huperzine A (Hup A for short). According to studies, Hup A has been proven to be beneficial in protecting the brain, including slowing the progression of Alzheimer's disease.
A Brief Guide to PSP. Progressive Supranuclear Palsy (PSP) is a Parkinsonâs-like neurological condition caused by the premature loss of nerve cells in certain parts of the brain. A protein called tau builds up in certain areas of the brain and forms into clumps (neurofibrillary tangles), which are believed to damage the nerve cells.