background: this study investigated the effects of lignosus rhinocerotis (lrs) supplementation and resistance training (rt) on isokinetic muscular strength and power, anaerobic and aerobic fitness, and immune parameters in young males. methods: participants were randomly assigned to four groups: control (c), lrs, rt, and combined rt-lrs (rt-lrs). participants in the lrs and rt-lrs groups consum...

the cotton bollworm, helicoverpa armigera (hübner), which is known as one of the most important economic pests, can cause severe damage to different crops in iran and many countries of the world. the effect of five maize hybrids: sc260, sc500, sc700, sc704 and dc370 on lysozyme activity in the hemolymph of sixth instar of h. armigera using lytic zone assay and its association with some fitness ...

in this paper, a new alternative method for order reduction of high order systems is presented based on optimization of multi objective fitness function by using harmony search algorithm. at first, step response of full order system is obtained as a vector, then, a suitable fixed structure considered for model order reduction which order of original system is bigger than fixed structure model. ...

ooencyrtus fecundus ferriere & voegele (hymenoptera: encyrtidae) is one of the gregarious egg parasitoids of sunn pest that can superparasitize the host. superparasitism has inverse effects on fitness, reproductive potential, competition ability and adult size of gregarious parasitoids. in this study, the effects of superparasitism and its intensity (four levels including singleton, twin, tripl...

A fitness function is needed for a Genetic Algorithm (GA) to work, and it appears natural that the combination of objectives and constraints into a single scalar function using arithmetic operations is appropriate. One problem with this approach, however, is that accurate scalar information must be provided on the range of objectives and constraints, to avoid one of them from dominating the oth...

background : adiposity is correlated with metabolic complications, such as insulin resistance, glucose intolerance, hypertension etc. that finally can lead to coronary heart disease (chd). physical activity plays an important role in prevention of these diseases. we aimed to study body fat and plasma lipids and lipoproteins in different levels of physical fitness; also to examine any relationsh...

Mutation-accumulation experiments are widely used to estimate parameters of spontaneous mutations affecting fitness. In many experiments only one component of fitness is measured. In a previous study involving the diploid yeast Saccharomyces cerevisiae, we measured the growth rate of 151 mutation-accumulation lines to estimate parameters of mutation. We found that an unexpectedly high frequency...

This article has demonstrated chaos Control in the Lorenz using the backstepping approach. Backstepping method has positive parameters. mostly, parameters are selected arbitrarily , the values of these parameters are significant because the incorrect values lead to instability. Genetic algorithm finds best values for parameters. GA by minimizing the fitness function can find the optimal values ...

The work concerns using evolutionary methods to evolve melodic sequences, obtained through a music generative approach from Chua s circuit, a non-linear dynamic system, universal paradigm for studying chaos. The main idea was to investigate how to turn potential aesthetical musical forms, generated by chaotic attractors, in melodic patterns, according to the western musical tradition. A single ...