Advances in VLSI and ber optic technology are shifting performance bottlenecks from the underlying networks to the communication subsystem. A communication subsystem consists of protocol tasks and operating system mechanisms. Protocol tasks include connection establishment and termination, end-to-end ow control, remote context management, segmentation/reassembly, demultiplexing, error protectio...

In this issue, two papers implicate histone H3 lysine 56 acetylation in histone deposition in chromatin. Li et al. (2008) show that acetylation of H3K56 promotes S phase chromatin assembly that is mediated by the histone chaperones CAF-1 and Rtt106. Chen et al. (2008) establish that the acetylation mark promotes chromatin reassembly following DNA double-strand break repair.

Ecosystems are increasingly impacted by human activities, altering linkages among physical and biological components. Spatial community reassembly occurs when these impacts modify the spatial overlap between system components, there is need for practical tools to forecast at landscape scales using monitoring data. To illustrate a new approach, we extend generalization of empirical orthogonal fu...

Over the last decades, the evolution of acquisition techniques yields the generalization of detailed 3D objects, represented as huge point sets composed of millions of vertices. The complexity of the involved data often requires to analyze them for the extraction and characterization of pertinent structures, which are potentially defined at multiple scales. Among the wide variety of methods pro...