Most of the DNA that composes a complex organism is noncoding and defined as junk.Even the coding part is composed of genes that affect the phenotype differently.Therefore a random mutation has an effect on the specimen fitness that strongly depends on the DNA region where it occurs.Understanding how this heterogeneous composition influences the fi
Introduction.Optimization is a criterion, Patchouli on the ground of which, comparative estimation of possible alternatives and selection of the best decisions is carried out.Cost of a shell, its minimum weight, absence of bending moments and tensile normal stresses, given stress state for acting external load, given bearing capacity when optimal s
The development of the Internet has led to a dramatic increase in online shopping users.E-commerce enterprises have been rising and becoming very successful in China in NATIVE PRO recent years.As an e-commerce platform established in 2015 and going public in 2018, Pinduoduo has become one of the three biggest e-commerce in China in a short period o