Consider a sequence of n independent observations from a population of increasing size αi, i = 1,2,... and an absolutely continuous initial distribution function. The distribution of the kth record value is represented as a countable mixture, with mixing the distribution of the kth record time and mixed the distribution of the nth order statistic. Precisely, the distribution function and (pow...

Differential evolution (DE) algorithms are commonly used metaheuristics for global optimization, but there has been very little research done on the generation of their initial population. The selection of the initial population in a population-based heuristic optimization method is important, since it affects the search for several iterations and often has an influence on the final solution. I...

introduction: the aim of our study is evaluation of response rate of vad (vincristin, adriamycin and dexamethason) regimen as initial treatment in 40 new cases of multiple myeloma. this is the first systemic and classic report of vad regimen in iranian population. methods: all patients with at least stage 2 multiple myeloma or progressive disease after physical examination, para- clinical profi...

Discrete time single species models with overcompensating density dependence and an Allee effect due to predator satiation and mating limitation are investigated. The models exhibit four behaviors: persistence for all initial population densities, bistability in which a population persists for intermediate initial densities and otherwise goes extinct, extinction for all initial densities, and e...

An eco-evolutionary feedback loop is defined as the reciprocal impacts of ecology on evolutionary dynamics and evolution on ecological dynamics on contemporary timescales. We experimentally tested for an eco-evolutionary feedback loop in the green peach aphid, Myzus persicae, by manipulating initial densities and evolution. We found strong evidence that initial aphid density alters the rate and...

1 ABSTRACT The dissemination of critical information and the synchronization of coordinated activities are critical problems in geographically separated, large-scale, software development. While these problems are not insurmountable, their solutions have varying trade-oos in terms of time, cost and eeectiveness. Our previous studies have shown that the inspection interval is typically lengthene...