First-principles plasma simulations show that black holes can’t keep their magnetic fields.

A key generation scheme is proposed and its performance analyzed. The method, the logistic map scheme (LMS), is applicable for use on wireless networks because it does not require devices to engage in computationally intensive algorithms. In addition, the method is shown to achieve reliability from the perspective of the communication agents, as well as unpredictability and randomness from the ...

We propose an extension of the evolutionary Prisoner's Dilemma cellular automata, introduced by Nowak and May [14], in which the pressure of the environment is taken into account. This is implemented by requiring that individuals need to collect a minimum score U min , representing indispensable resources (nutrients, energy, money, etc.) to prosper in this environment. So the agents, instead of...

We propose an extension of the evolutionary Prisoner's Dilemma cellular automata, introduced by Nowak and May (1992 Nature 359 826), in which the pressure of the environment is taken into account. This is implemented by requiring that individuals need to collect a minimum score U min , representing indispensable resources (nutrients, energy, money, etc) to prosper in this environment. So the ag...

We present a game-theoretic self-organizing approach for scheduling the radio activity of wireless sensor nodes. Our approach makes each node play a win-stay lose-shift (WSLS) strategy to choose when to schedule radio transmission, reception and sleeping periods. The proposed strategy relies only on local interactions with neighboring nodes, and is thus fully decentralized. This behavior result...