We study the asymptotics of front speeds of the reaction-diffusion equations with Kolmogorov-Petrovsky-Piskunov (KPP) nonlinearity and zero mean stationary ergodic Gaussian shear advection on the entire plane. By exploiting connections of KPP front speeds with the almost sure Lyapunov exponents of the parabolic Anderson problem, and with the homogenized Hamiltonians of Hamilton-Jacobi equations...

This paper compares base shears computed from floor accelerations (inertial base shear) and column shears (structural base shear) for two mid-rise, multi­ story buildings due to a suite of 30 earthquake ground motions. The presented results demonstrate that the inertial base shear exceeds the structural base shear in the median by 10% to 20% and may exceed the structural base shear by as much a...

We report on the first Skyrme-Hartree-Fock calculations with the tilted-axis cranking in the context of magnetic rotation. The mean field symmetries , differences between phenomenological and self-consistent methods and the generation of shears-like structures in the mean field are discussed. Significant role of the time-odd spin-spin effective interaction is pointed out. We reproduce the shear...

The Standard Model is the theory used to describe the interactions between fundamental particles and fundamental forces. It is remarkably successful at predicting the outcome of particle physics experiments. However, the theory has not yet been completely verified. In particular, one of the most vital constituents, the Higgs boson, has not yet been observed. This paper describes the Standard Mo...

The authors discuss in their article (Swartz et al., 1988) the distortion of incoherent scatter spectra due to highvelocity shears in the scattering volume. This is a well-known effect (see, for example, the discussion of one aspect of this problem in Kofman et al., 1984). It is our opinion that the demonstration and analysis of one single event of such a distortion is not very conclusive. A be...

BACKGROUND In traditional laparoscopic cholecistectomy, the cystic duct and artery are commonly closed by metallic clips just before their division. Although the placement of these clips for occluding cystic artery and duct can be considered safe, biliary leaks and bleeding may occur especially by its dislodgement. AIM To report a prospective case-series in total clipless cholecystectomy by m...

We give a possible extension of definition shears and overshears in the case two non commutative (quaternionic) variables relation with associated vector fields flows. define divergence operator determine divergence. Given non-existence quaternionic volume form on H2, we automorphisms to be time-one maps preserving 0. To these classes Andersen–Lempert theory applies. Finally, exhibit an example...