Revolutionary waves have always been a challenge to political systems.The culmination of these revolutions was in the twentieth century.In the 21st century, revolutions have become a serious challenge to the political systems of the Middle East and North Africa.To explain why and how the revolution took place, the general theories and models of the
Abstract With cancer stem cells (CSCs) became the research hotspot, emerging studies attempt to reveal the functions of these special subsets in tumorigenesis.Although various approaches have been used in CSCs researches, only a few could really reflect or simulate the microenvironment in vivo.At present, CSCs theories are still difficult to apply
Protein phosphatase 2A (PP2A) is a group of important cellular regulators in eukaryotes that dephosphorylate more than 30% of cellular proteins whose activities are turned on trunks or off by phosphorylation.In plants, PP2A was found to regulate critical components involved in plant growth and development, and in response to biotic and abiotic stre
From analysis of Records of the Daughters Sires (Bandy.Thamer, 51, Bulbl, Gorge , Anber ,Roger Toys , 71753 and 251) that are used in artificial in semination to the Friesian cows belong to AL - Latifia Company for animal to study the effect of the Sires on the Heifers Birth weight, total milk yield Audio Connector production , Daily milk yield ,fi