We prove that the lowest upper bound for the number of isolated zeros of the Abelian integrals associated to quadratic Hamiltonian vector fields having a center and an invariant straight line after ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Retroviral integration into host cell chromosomes was once thought to be random, but new evidence suggests that human immunodeficiency virus preferentially enters the neighborhood of activated genes.