Radio channel has been a precious resource to manage since the take off of the mobile communications in late 70s. Several techniques have proposed over the years trying maximize utilization while allowing a number of users to share the channel. Among those techniques, CDMA has arisen as one of the most popular ones, and several approaches have been taken following the concept of carrier sensing...

Mutual synchronization by exchange of chemicals is a mechanism for the emergence of collective dynamics in cellular populations. General theories exist on the transition to coherence, but no quantitative, experimental demonstration has been given. Here, we present a modeling and experimental analysis of cell-density-dependent glycolytic oscillations in yeast. We study the disappearance of oscil...

Cupric oxide nanostructures were synthesized via a simple reaction between copper nitrate and sodium hydroxide using a sonochemical-assisted method. The synthesized CuO was then characterized using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared, ultraviolet-visible and photoluminescence spectroscopy. Our studies show that the CuO na...

This article talks about the building of QUORUM-W and the strategies outlined to accomplish this work. QUORUM-W is part of a research project called—COLMEIA— which focusses on the study of the issues concerned in the construction of an environment for the development of custom-tailored cooperative applications.