Under constant selection, each trait has a fixed fitness, and small mutation rates allow populations to efficiently exploit the optimal trait. Therefore, it is reasonable expect that will evolve downwards. However, we find this need not be case, examining several models of mutation. While upwards evolution rate been found with frequency- or time-dependent demonstrate its possibility in much sim...

Offshore engineering construction projects are large and complex, having the characteristics of multiple execution modes resource constraints. Their complex internal scheduling processes can be regarded as resourceconstrained project problems (RCPSPs). To solve RCPSP in offshore more rapidly, a hybrid genetic algorithm was established. defects algorithms, which easily fall into local optimal so...

Recessive deleterious mutations are common, causing many genetic disorders in humans and producing inbreeding depression in the majority of sexually reproducing diploids. The abundance of recessive deleterious mutations in natural populations suggests they are likely to be present on a chromosome when a new adaptive mutation occurs, yet the dynamics of recessive deleterious hitchhikers and thei...

Replicators such as parasites invading a new host species, species invading a new ecological niche, or cancer cells invading a new tissue often must mutate to adapt to a new environment. It is often argued that a higher mutation rate will favor evolutionary invasion and escape from extinction. However, most mutations are deleterious, and even lethal. We study the probability that the lineage wi...

We propose an adaptive random quantum algorithm to obtain optimized eigensolver. Specifically, we introduce a general method parametrize and optimize the probability density function of number generator, which is core stochastic algorithms. follow bioinspired evolutionary mutation changes in involved matrices. Our optimization based on two figures merit: learning speed accuracy. This provides h...

Self-organization in macromolecular systems refers to the transition from a random assembly of interacting oligomers to a system of stable heteropolymers. The concept of adaptive value describes the correlation between environmental variability and the variability in replication and mutation rates of the interacting oligomers. This paper describes a model of self-organization in macromolecular ...

Abstract To ensure that the power supply can be restored quickly when ship’s system fails, fault reconstruction method of is studied. Taking number switching operations and load loss as objective function, traditional genetic algorithm improved by introducing a Tent population initialization, adaptive crossover probability, mutation probability to realize ship regional distribution system. Two ...

Canine distemper virus (CDV), a close relative of measles virus (MV), is widespread and well known for its broad host range. When the goal of measles eradication may be achieved, and when measles vaccination will be stopped, CDV might eventually cross the species barrier to humans and emerge as a new human pathogen. In order to get an impression how fast such alterations may occur, we character...