When rats trained to forage in one environment are exposed to a second, highly similar environment, their hippocampal place code exhibits a partial remapping in the new environment that becomes more complete with repeated exposures (Tanila, Shapiro, and Eichenbaum, 1997; Bostock, Muller, and Kubie, 1991). If the perforant path projection to CA3 functions as a pattern completion mechanism, and t...

The fractal dimension of an attracting torus Tk in lR x T" is shown to be almost always equal to the Lyapunov dimension as predicted by a previous conjecture. The cases studied here can have several Lyapunov nulJ!bers greater than I and several less than I

The density conjecture of Bers, Sullivan and Thurston predicts that each complete hyperbolic 3-manifold M with finitely generated fundamental group is an algebraic limit of geometrically finite hyperbolic 3-manifolds. We prove that the conjecture obtains for each complete hyperbolic 3manifold with no cusps and incompressible ends.

Performance evaluation of time-hopping UWB using various modulation techniques has been proposed. Then the performance improvement is analysed based on the BERs of various existing methods. Recently a new method called TH-BPSK UWB system is proposed which provides a better performance than all other existing systems. The literature survey discusses all the existing techniques of UWB communication.

© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 7197 wileyonlinelibrary.com Circumstance-adaptive materials (CAMs) are those that can change their properties—mechanical, optical, electrical, magnetic, biological, and so on—to respond to their use or environment; [ 3–8 ] they represent a current challenge in materials science. Among the wide variety of possible CAMs, we focus on materials whos...

Purpose. The neuronal mechanisms of remission of epilepsy are not known. Based on the principles of the "network theory of epilepsy" we postulated the existence of abnormal cortico-cortical interactions at the onset of epilepsy (Hypothesis-1), and postulated that remission is associated with the decrease or disappearance of the abnormal quantitative EEG findings (Hypothesis-2). Methods. Four ch...

VOLUME 36 • OCTOBER 2011 • www.mrs.org/bulletin © 2011 Materials Research Society Introduction Transparent electrodes are ubiquitously used in optoelectronic devices where light must pass through a section, and current or voltage needs to be applied. These devices include thin-fi lm solar cells (organic, inorganic, hybrid), displays (liquid-crystal display, plasma display, organic light-emittin...

We generate a hierarchical sequence of random variables from a map taking k copies of a Banach space to itself. With a simple assumption on the map and an integrability condition for the initial random variables we prove that the renormalized sequence converges almost surely to a constant. We apply this result to the homogenization of Laplace operators on fractals.

Synchronization To support the choreography and ventriloquism of virtual sources, the server must provide mechanisms by which programs can query the server for status information and synchronize on points in the audio stream(s). This synchronization can be provided by an RPC callback mechanism. Many commands, especially movement commands, should include options for automatic synchronization wit...

This paper concerns the problem of a flow past a given profile with prescribed velocity at infinity. In 1973 we announced (see [4]) a new approach-using variational inequalities-to the study in the hodograph plane of some twodimensional subsonic flows past a given convex profile. The aim of the present work is to give the proofs and develop further properties of the solution. For simplicity we ...