In this paper, the authors propose three partitioning schemes for adaptive clustering with fractional frequency reuse namely maximal fractional frequency reuse partitioning (MFRP), optimal fractional reuse partitioning (OFRP), and GoS-oriented frequency reuse partitioning. The authors propose that an overlaid cellular clustering scheme, which uses adaptive fractional frequency reuse factors, wo...

The presynaptic active zone contains a complex web of proteins involved in synaptic transmission. In this issue of Neuron, two articles show evidence that one of these proteins, Bassoon, coordinates multiple functions in a conventional and ribbon-type synapse.

The cellular mechanisms involved in the formation of the glutamatergic postsynaptic density (PSD) are mainly unknown. Previous studies have indicated that PSD assembly may occur in situ by a gradual recruitment of postsynaptic molecules, whereas others have suggested that the PSD may be assembled from modular transport packets assembled elsewhere. Here we used cultured hippocampal neurons and l...

Human episodic memory provides a seemingly unlimited storage for everyday experiences, and a retrieval system that allows us to access the experiences with partial activation of their components. This paper presents a computational model of episodic memory inspired by Damasio's idea of Convergence Zones. The model consists of a layer of perceptual feature maps and a binding layer. A perceptual ...

Synchronization of coupled nonidentical fractional-order hyperchaotic systems is addressed by the active sliding mode method. By designing an active sliding mode controller and choosing proper control parameters, the master and slave systems are synchronized. Furthermore, synchronizing fractional-order hyperchaotic Lorenz system and fractional-order hyperchaotic Chen system is performed to show...