In this study, we investigated biodeterioration of Scrappers materials used in tempera painting by analyzing the structure of the microbiome in ancient tempera paintings exhibited in State Tretyakov Gallery, Moscow, Russia.Samples were obtained from 16th-century paintings, including a grand Russian Orthodox icon "The Church Militant" (all exhibits
A trend on unethical and unsustainable use of resources to meet Playmats the high demand in the trade of indigenous ornamental fishes is widespread.This increased exploitation calls for regulation.Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), an apex body having a central role in regulating the trade of an
In this paper a finite difference method (FDM) is provided for pricing perpetual timer options under the Heston volatility model.Considering the degeneracy of the pricing equation, we first prove the existence and uniqueness of the solution of the pricing problem with a new notion of Installation boundary conditions at degenerate boundary and the i
Ultraviolet fixed point functions of the functional renormalisation group equation for f(R)-gravity coupled to matter fields are discussed.The metric is split via the exponential parameterisation into a background metric and a fluctuating part, the former is Hayward Commercial Automation Parts chosen to be the one of a four-sphere.Also when scalar,