The dogs are barking, the woman’s screaming and the man’s swearing … it’s the kind of scene you see in a park and think: I’m glad that has nothing to do with me ...

Advice columnist Carolyn Hax answers your questions about the strange train we call life.

Unless Rana Sanaullah knows something about a change of mind in either one or both quarters, a headway can be wished.

Abstract: We study the transmission properties of a guide consisting of a dielectric rod with rectangular cross section, surrounded by several dielectrics of smaller refractive indices. This guide is ...