In this paper, we analyze an RFID identification scheme which is designed to provide forward untraceability and backward untraceability. We show that if a standard cryptographic pseudorandom bit generator (PRBG) is used in the scheme, then the scheme may fail to provide forward untraceability and backward untraceability. To achieve the desired untraceability features, the scheme can use a robus...

We study the doubly–polarized lepton pair forward–backward asymmetries in Λb → Λl+l− decay using a general, model independent form of the effective Hamiltonian. We present the general expression for nine double–polarization forward– backward asymmetries. It is observed that, the study of the forward–backward asymmetries of the doubly–polarized lepton pair is a very useful tool for establishing ...

Some aspects of backward locomotion are similar to forward locomotion, while other aspects are not related to their forward counterpart. The backward preferred transition speed (BPTS) has never been directly compared to the energetically optimal transition speed (EOTS), nor has it been compared to the preferred transition speed (PTS) during forward locomotion. The purpose of this study was to d...

A major contributor to impaired locomotion post-stroke is abnormal phasing of muscle activity. While inappropriate paretic muscle phasing adapts to changing body orientation, load, and speed, it remains unclear whether paretic muscle phasing adapts to reversal of locomotor direction. We examined muscle phasing in backward pedaling, a task that requires shifts in biarticular but not uniarticular...

In this paper, we study a kind of Stackelberg game where the controlled systems are described by backward stochastic differential delayed equations (BSDDEs). By introducing new adjoint equation, establish sufficient verification theorem for optimal strategies leader and follower in general case. Then, focus on linear–quadratic (LQ) with delay. The equilibrium is presented generalized fully coup...