This paper proposes an extension of the Gravitational Search Algorithm (GSA) to multiobjective optimization problems. The new algorithm, called Non-dominated Sorting GSA (NSGSA), utilizes the non-dominated sorting concept to update the gravitational acceleration of the particles. An external archive is also used to store the Pareto optimal solutions and to provide some elitism. It also guides t...

Few studies have examined school-based factors associated with variability in the victimization and health of lesbian, gay, bisexual, transgender, and questioning (LGBTQ) youth. Among 15,965 students in 45 Wisconsin schools, we identified differences based on Gay–Straight Alliance (GSA) presence. Youth in schools with GSAs reported less truancy, smoking, drinking, suicide attempts, and sex with...

Gliosarcoma (GSa) is a rare primary central nervous system neoplasm (CNS) characterized by biphasic histological pattern with both glial and sarcomatous components. Our objective is to describe the clinical, morphological and immunohistochemical features of four cases of GSa and to discuss its pathogenetic mechanisms. The male:female ratio was 3:1. The mean age was 39 years, ranging from 19 to ...

We report, for the first time to our knowledge, a mode-locked femtosecond Cr:LiSAF laser initiated with a high-quality monolayer graphene saturable absorber (GSA), synthesized by chemical-vapor deposition. The tight-focusing resonator architecture made it possible to operate the Cr:LiSAF laser with only two 135 mW, 660 nm low-cost single-mode diode lasers. At a pump power of 270 mW, the laser p...

doi: 10.1130/G25637.1 2010;38;143-146 Geology Francis A. Macdonald, Phoebe A. Cohen, Francis O. Dudás and Daniel P. Schrag and the Yukon Territory Early Neoproterozoic scale microfossils in the Lower Tindir Group of Alaska Email alerting services articles cite this article to receive free e-mail alerts when new www.gsapubs.org/cgi/alerts click Subscribe to subscribe to Geology www.gsapubs.org/s...

The genetic algorithm with search area adaptation (GSA) has a capacity for adapting to the structure of solution space and controlling the tradeoff balance between global and local searches, even if we do not adjust the parameters of the genetic algorithm (GA), such as crossover and/or mutation rates. But, GSA needs the crossover operator that has ability for characteristic inheritance ratio co...

The relaxation of the Glass-Steagall Act (GSA), the Act which separates commercial and investment banking, is currently under debate. Central to this debate is the potential risk reduction of commercial banks due to diversification. This paper, through a thorough and complete examination of the diversification potential, establishes an upper bound of diversification benefits. The results do sup...

Global sensitivity analysis (GSA) is a fundamental tool for identifying input variables that determine the behavior of mathematical models under uncertainty. Among methods proposed to perform GSA, those based on Sobol method are highlighted because their versatility and robustness; however, applications using complex impractical owing significant processing time. This research proposes methodol...

The purpose of this paper is to propose a GSA-tuning IPD control technique for magnetic suspension systems. An educational demonstration on a magnetic-field sensed magnetic suspension system is examined for effectiveness. For the magnetic-field sensed magnetic suspension system (FSMSS), the current transducer is employed for measuring the electromagnetic coil current, and a Hall effect device i...