We introduce a simple physical picture to explain the process of molecular sorting, whereby specific proteins are concentrated and distilled into submicrometric lipid vesicles in eukaryotic cells. To this purpose, we formulate model based on coupling spontaneous aggregation with vesicle nucleation. Its implications studied by means phenomenological theory describing diffusion molecules towards ...

Wireless networks are inherently more susceptible to attacks than their wired counterparts. The easiness of transmitting and receiving messages for legitimate users is also valid attackers, traditionally cryptographic methods have been exploited provide security privacy. However, these far from fulfilling the needs current technologies, such as IoT devices with limited computation energy source...

The hypothesis that rainfall might be a case of self-organized critical dynamics is tested using long-term data sets from weather stations around the world. It is found that the distribution of droughts in semi-arid regions obeys indeed a clear-cut power law. The statistics for rain intensity, on the other hand, exhibits two distinct scaling regimes. c ©1998 Elsevier Science B.V. All rights res...

Wireless sensor networks are composed of a huge number of sensor nodes, which have limited resources energy, memory and computation power. Energies are directly related to the lifetime of sensor network. If sensor nodes can be grouped to clusters, cluster member sensor nodes only need to communicate with cluster center (head) and this leads to energy conservation of the member sensors. So, how ...

Aggregation is widespread in invertebrate societies and can appear in response to environmental heterogeneities or by attraction between individuals. We performed experiments with cockroach, Blattella germanica, larvae in a homogeneous environment to investigate the influence of interactions between individuals on aggregations. Different densities were tested. A first phase led to radial disper...