Ghosts have been a stumbling block in the development of a UV complete quantum field theory for gravity.We discuss how difficulties associated with ghosts are overcome in the context of 0+1d QFT.Obtaining a probability Electronics interpretation is the key issue, and for this we discuss how an appropriate inner product can be constructed to define
Polyamide-6 (PA6) and short glass fibre-reinforced PA6 (GPA6) are increasingly used in structural automotive parts exposed to harsh conditions, respectively as liner in Type IV hydrogen tanks and TV Cover under-the-hood components near the engine.Safe design requires understanding of their complex mechanical behaviour under the influence of tempera
Dynamical vectors characterizing instability and applicable as ensemble perturbations for prediction with geophysical fluid dynamical models are analysed.The relationships between covariant Lyapunov vectors (CLVs), orthonormal Lyapunov vectors (OLVs), singular vectors (SVs), Floquet vectors and finite-time normal modes (FTNMs) are examined for peri