background: the current study was conducted to estimate the integrated mean of quality of life (qol) of the general population of different countries around the world and to compare them on the grounds of the human development index (hdi). methods: well-known international databases such as medline, scopus, science direct, google scholar & google, and domestic databases including sid, iranmedex...

The use of multiple populations in Genetic Programming is an area that is just beginning to be investigated. To date a number of conflicting reports have been generated with respect to the effectiveness of multiple populations in GP. We report here that these conflicting reports may be due a problem-dependent nature found in GP that has not been reported in GAs. This paper will review: what bot...

We present an analysis of compact star clusters in deep Hubble Space Telescope Wide Field Planetary Camera 2 images of NGC 1275. Band R-band photometry of roughly 3000 clusters shows a bimodality in the B[R colors, suggesting that distinct old and young cluster populations are present. The small spread in the colors of the blue clusters is consistent with the hypothesis that they are a single-a...