Purpose The purpose of this paper is to identify and explore important quality-related challenges facing organizations, and investigate how current excellence models incorporate these challenges. Design/methodology/approach The paper is based on a Delphi study of Swedish organizations....

We use the cylindrical algebraic decomposition algorithms implemented in Mathematica to produce procedures to analytically compute integrals over polynomially defined regions and their boundaries in two and three dimensions. Using these results, we can implement the divergence theorem in three...

With the advent of atonal music at the beginning of the 20th Century, composers drastically changed the way they thought about pitches. Octave equivalence became the prominent idea, in which pitches with the same relative placement in different octaves were considered to be functionally...

The length of the Spanish broad gauge network has decreased in the 1956–2006 period. When looking at different railway maps through this period, it seems that the network is offering fewer and fewer alternatives when a line is cut, that is, the network is becoming less and less flexible. The...