It’s chaos out here ...

Ruling out chaos in compact binary systems.

We investigate the orbits of compact binary systems during the final inspiral stage before coalescence by integrating the post-Newtonian equations of motion. We include spin-orbit and spin-spin coupling, which, according to a recent study [J. Levin, Phys. Rev. Lett. 84, 3515 (2000)], may cause the orbits to appear chaotic. To examine this claim, we calculate the divergence of nearby trajectorie...

Detrusor contractility--order out of chaos.

OBJECTIVE This paper comprises a critical assessment of the many competing ways of assessing detrusor contractility in the urodynamic clinic. It is based on measurements made in a group of elderly women, and the conclusions apply, strictly speaking, only to that population. Detrusor contractility has two aspects, which appear to be independent of each other: the strength of the detrusor contrac...

Noiseless Collective Motion out of Noisy Chaos

We consider the effect of microscopic external noise on the collective motion of a globally coupled map in fully desynchronized states. Without the external noise a macroscopic variable shows highdimensional chaos distinguishable from random motions. With the increase of external noise intensity, the collective motion is successively simplified. The number of effective degrees of freedom in the...

Scale-Free Networks Out of Multifractal Chaos

Designing for balance: Out There and In Here

This paper describes the ‘Out There and In Here’ project, in which we explore the combined use of mobile technologies and static indoor technologies to support novel forms of collaborative field trip learning. We are currently developing a system to support balanced collaboration between geology students ‘Out There’ in the field, and their peers located in a specially designed ‘In Here’ laborat...