Background: Multiple sclerosis is the most common autoimmune demyelinating disease of the central nervous system (CNS). Interleukin-33 (IL-33) is a cytokine with both pro-inflammatory and anti-inflammatory activities that implicated in the pathogenesis of some autoimmune diseases. The aim of this study was to determine single nucleotide polymorphism (SNP) of IL-33, rs1929992, in patient’s gene ...

AIMS To examine the efficacy of a brief intervention delivered by a therapist (TBI) or a computer (CBI) in preventing cannabis use among adolescents in urban primary care clinics. DESIGN A randomized controlled trial comparing: CBI and TBI versus control. SETTING Urban primary care clinics in the United States. PARTICIPANTS Research staff recruited 714 adolescents (aged 12-18 years) who r...

An electronic method of control that has been known since the early thirties is that of the phase-lock-loop technique. In this method the phase angle of a periodic signal whose frequency corresponds to the value of the quantity to be controlled is continuously compared with the phase angle of an applied signal whose frequency represents the specified value. A change in the phase difference betw...

In the proposed paper, we have presented the need for Load Frequency Control (LFC) of an interconnected multi-area power to minimize the transient deviations in area frequency and tie-line power interchange and to ensure their steady state errors are zeros. In this paper, the Load Frequency Control achieved by implementation of one of the following conventional controller strategies: Proportion...

This study proposes a combination of a fuzzy sliding mode controller (FSMC) with integral-proportion-Derivative switching surface based superconducting magnetic energy storage (SMES) and PID tuned by a multi-objective optimization algorithm to solve the load frequency control in power systems. The goal of design is to improve the dynamic response of power systems after load demand changes. In t...

Power systems are composed of power units that are constantly connected to each other and the electric power flux is constantly moving between them. All systems must be implemented in such a way that not only under normal conditions but also unwanted inputs or disturbances, are applied. It also remains stable or returns to a stable name at the earliest possible time. The fundamental factors...

background : apolipoprotein e (apoe) gene encodes an important protein in reforming injuries of central nervous system (cns). it is assumed that various apoe alleles may be functionally different. the purpose of this study was to investigate the distribution of apoe genotypes in multiple sclerosis (ms) patients in a small cohort of iranians. methods : in this case-control study, blood samples o...