This article is devoted to a new financial instrument, like copyright.This financial instrument gradually captures world markets.Definitely, simple money is replaced by digital money with the de-velopment of information technology.The new instrument does not have a centralized system of control and is protected from hoop earrings copyright, which m
Abstract This paper investigates the asymmetric effect of exchange rate changes on cross-border trade in Nigeria.The investigation becomes necessary because several studies have reported insignificant results in attempting to establish a link between these two variables using symmetric specification.Whereas, there are strong evidence of nonlinear m
Coronavirus Prybar disease 2019 (COVID-19) is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).The viral outbreak started in late 2019 and rapidly became a serious health threat to the global population.COVID-19 was declared a pandemic by the World Health Organization in March 2020.Several therapeutic options have been adopted
Polypropylene is one of the most widely used synthetic resins, which is mainly synthesized with Ziegler-Natta catalysts.In this paper, the functionalized Ziegler-Natta catalyst is applied to prepare high-performance polypropylene.A new way to synthesize functionalized Ziegler-Natta catalysts is to dope with inorganic nanoparticles.The Mountaineerin