The adsorption characteristics of Newcastle disease virus (NDV) propagated in chicken cells (NDV-C) and in human cells (NDV-H) were examined. Adsorption experiments performed at different temperatures indicated that virus propagated in a particular cell infected that cell type more readily than did virus propagated in a different host. For example, NDV-C was more efficient in initiating infecti...

It has been widely reported that intrinsic brain activity, in a variety of animals including humans, is spatiotemporally structured. Specifically, propagated slow activity has been repeatedly demonstrated in animals. In human resting-state fMRI, spontaneous activity has been understood predominantly in terms of zero-lag temporal synchrony within widely distributed functional systems (resting-st...

Abstract We explicitly solve the equations for propagation of an electromagnetic wave up to subleading order geometric optics expansion in Kerr spacetime. This is done two nontrivial steps. first construct a set parallel propagated null tetrad Two components such give and polarization approximation. Then we use modified trajectory equation obtain wavelength-dependent deviation waves, which give...

Dense aggregating fields of P. violaceum and P. pallidum exhibit propagated waves which may be analogous to those seen in Dictyostelium discoideum. As in D. discoideum the wave velocity is determined by an intracellular delay between stimulation and response, rather than by the diffusion coefficient of the acrasin. The frequency of the propagated wave overlaps that of aggregating D. discoideum,...