The aim of this work was to investigate the effects of AFB1 and AFB1+Se 4+ on various developmental stages of Drosophila melanogaster were investigated. Both different concentrations of AFB1 and Se 4+ applied with AFB1 were fed during the flies developmental period (egg, larva and pupae). When F1 progeny of control and application groups were compared with each other, AFB1 was found to have ext...

The paper is concerned with the construction of a stochastic model for the spatially discretized time-dependent Schrödinger equation. The model is based on a particle system with a Markov jump evolution. The particles are characterized by a sign (plus or minus), a position (discrete grid) and a type (real or imaginary). The jumps are determined by the creation of offsprings. The main result is ...

This paper investigates an improved genetic algorithm on multiple automated guided vehicle (multi-AGV) path planning. The innovations embody in two aspects. First, three-exchange crossover heuristic operators are used to produce more optimal offsprings for getting more information than with the traditional two-exchange crossover heuristic operators in the improved genetic algorithm. Second, dou...

The knapsack problem, a NP-hard problem, has been solved by different ways during many years. However, its combinatorial nature is still interesting for many academics. In this paper, an Estimation of Distribution Algorithm is applied for solving the Knapsack problem. KEDA for simplicity is called. It contains a probabilistic model of type chain for sampling new offsprings to solve the problem....

The prevalence of group B streptococcal carriage was evaluated in nonpregnant women and in mothers and their offsprings. The overall carriage rate of group B streptococci at one site was 18.2%. Streptococci were recovered from one or more of the sites sampled in 25.6% of mothers and 15.4% of newborn infants. The maternal genital carriage rate was 18.6%, and acquisition of the organism from the ...

Specific idiotypie can be induced in randomly chosen rabbits by preimmunization with anti-idiotypic antibodies (Ab2). Rabbits that synthesize anti-anti-idiotypic antibodies (Ab3) when injected with antigen produce antibodies that display idiotypic specificities that are also found on the starting idiotype. When female rabbits actively producing Ab3 are crossed with naive males, a significant pr...

A branching process is a mathematical description of the growth of a population for which the individual produces offsprings according to stochastic laws. Branching processes can be modeled by one-dimensional random walks with non-negative integral step-sizes. In this paper we consider the random walk with a similar algebraic setting but the step-size distribution is allowed to take negative va...