We have investigated the development of current-driven (CD) kink instability through three-dimensional relativistic MHD simulations. A static force-free equilibrium helical magnetic configuration is considered in order to study the influence of the initial configuration on the linear and nonlinear evolution of the instability. We found that the initial configuration is strongly distorted but no...

Recently, different numerical studies of coarsening in disordered systems have shown the existence of a crossover from an initial, transient, power-law domain growth to a slower, presumably logarithmic, growth. However, due to the very slow dynamics and the long-lasting transient regime, one is usually not able to fully enter the asymptotic regime when investigating the relaxation of these syst...

one of the economic problems in the developing countries is the debt problem. external debt occurs in the developing countries due to the elimination of the restrictions on the savings gap, the foreign exchange gap, and the fiscal gap in order to form the capital to accelerate the economic growth (karakoy et al., 2012, p. 491). in contrast, borrowing and rising the external debt could be little...

This paper investigates the role of beliefs over monetary policy in propagating the effects of monetary policy within the context of a dynamic, stochastic general equilibrium model. In our model, monetary policy periodically switches between low and high money growth regimes. When individuals are unable to directly observe the current regime, they will assign some probability to the low money g...

Evidence has been mounting (over the centuries) that the interest based debt financing regime is under ever increasing distress. All of the earlier crises whatever label they carried− exchange rate crisis or banking crisis – have been debt crises in essence. At the present, empirical research suggests that the debt-to-GDP ratio of the richest members of the G-20 threatens to touch 120% m...

Lack of substantial occupational therapy research is a recognized and persistent problem; which is often discussed throughout the literature but not truly addressed. Action must be taken to involve clinicians in the effort to substantiate the efficacy of treatments through outcome studies. We offered several proactive recommendations that could be implemented on a national level to encourage he...

regarding the important role of health in economic growth and development, the purpose of the present paper is to investigate the impact of life expectancy, as the most important indicator of health, on economic growth in iran during 1965-2009. the estimated smooth transition regression (str) model supports a nonlinear threshold behavior in the relationship between life expectancy and economic ...

Flood regime and vegetation flood tolerance interact to influence tree growth in riverine landscapes. We studied tree growth in floodplain and upland forests of theWisconsin River. About a century ago, levees set back from the river were constructed on this floodplain. The levee restricts some floodplain area from overbank flood events, but leaves a portion of active floodplain still inundated ...