We study a non-Hermitian AA model with long-range hopping, $1/r^a$, and different choices of quasiperiodic parameters $\beta$ to be member the metallic mean family. find that when power-law exponent is in $a<1$ regime, system displays delocalized-to-multifractal (DM) edge its eigenstate spectrum. For $a>1$ case, delocalized-to-localized (DL) exists, also called mobility edge. While striking fea...

BACKGROUND Despite the common experience that interrupted sleep has a negative impact on waking function, the features of human sleep-wake architecture that best distinguish sleep continuity versus fragmentation remain elusive. In this regard, there is growing interest in characterizing sleep architecture using models of the temporal dynamics of sleep-wake stage transitions. In humans and other...

This paper presents a novel indirect adaptive Power System Stabilizer (PSS) via a developed synergetic control methodology and fuzzy systems. Fuzzy system is utilized in an adaptive scheme to estimate the system using a nonlinear model. The synergetic control guarantees robustness of the controller and makes the controller easy to implement because of using a chatter free continuous control law...

INTRODUCTION: Surgical intervention for the treatment of low back pain over the last decade has often included the use of interbody fusion devices (IFDs). Implanted into the intervertebral space, these devices serve as structural support until fusion occurs. Numerous experimental investigations have evaluated the acute kinematic stability and/or monotonic strength of the implant-vertebrae const...

The power law of practice states that performance on a task improves as a power-law function of the number of times the task has been performed. In this article we describe recent work on a model of this effect. The model, called the chunking theory of /earning, is based on the notion of chunhing. A limited version of this model has been implemented within the XapsP production system architectu...