We construct a simple firm-based automata model for global economic inter-dependence of countries using modern notions of self-organized criticality and recently developed dynamical-renormalization-group methods (e.g., L. Pietronero et al., Phys. Rev. Lett., 72(11):1690 (1994); J. Hasty and K. Wiesenfeld, Phys. Rev. Lett., 81(8):1722, (1998)). We demonstrate how extremely strong statistical cor...

This paper proposes a class of models to represent, in the same framework, the self-similarity/long-range dependence and secondorder intermittency of 2-D turbulence. A method is given to estimate and separate these two effects. Application to a vorticity field indicates that the resulting energy spectrum follows the power laws, in the low-frequency as well as the high-frequency range, commonly ...

We present studies on magnetic anti-dot nano-structures with three-dimensional s3Dd architectures, fabricated using a self-assembly template method. We find that patterning transverse to the film plane, which is a unique feature of this method, results in novel magnetic behavior. In particular, one of the key parameters for a magnetic material, the coercive field Bc, was found to demonstrate an...

Whilst the notion of path dependence features quite prominently in organisation and business history literature, its actual meaning and logic have remained vague and ambiguous. In order to advance a more precise understanding of the underlying logic we present a theoretical framework explaining how organisations become path-dependent. At its core are the dynamics of self-reinforcing mechanisms,...

In this paper, a numerical study of barrier characterization effects on the high-temperature internal performance of an InGaAsP multi-quantum well laser is presented. The softwareused for this purpose self-consistently combines the three-dimensional simulation of carrier transports, self-heating, and optical waveguiding. The laser model calculates all relevant physical mechanisms, including the...

Background: Exercise deprivation has been concluded to have some negative effects on psychological well-being. This study was conducted to find out whether exercise deprivation may lead to morphine dependence in rats. Methods: Forty male Wistar rats weighing 162 ± 9 g were housed in clear plastic cages in groups of two under standard laboratory conditions. The study had two phases. In phase I, ...

Background: Polycystic Ovary Syndrome (PCOS) as other chronic diseases causes dependence and decreasing body control. It also causes unworthy unsafely, negative suggestions and decreasing of Self-confidence. The aim of this comparative study was comparing Selfconfidence in woman with and without PCOS according to their ages. Materials and Methods: This comparative study conducted between 100 wo...