Low sound speed or low-density materials can be used as soft acoustic boundaries in water, potentially as low-frequency underwater sound insulation.This study uses a chiral structure to construct an acoustic metascreen with deep subwavelength thickness.The results show that the transmission coefficient of the metascreen decreases noticeably in the
Various disciplines cooperate to find novel approaches to cure impaired body functions by repairing, replacing, Electromagnetic Brake or regenerating cells, tissues, or organs.The possibility that a stable differentiated cell can reprogram itself opens the door to new therapeutic strategies against a multitude of diseases caused by the loss or dysf
Abstract Background The variable visual function observed in diabetic retinopathy (DR) patients is not fully explained by the classic staging system.Our purpose was to evaluate choroidal changes, in standardized sectors, in DR patients and to find associations between choroidal measurements and visual function.Methods Cross-sectional study that inc
Abstract Egg Timer : This research approaches the meanings encoded in the written speeches on the slogans carried by the Algerians during their demonstrations against the ruling system, started on February 22, 2019.The demonstrations, which were a reaction against the deterioration of the social, political, and economic conditions, were one of the
This article Egg Timer deals with the conceptual foundations of the modern global economic system of development.It reflects the cyclical nature of changes to and the details of global integration processes.The creation of a global economy from a multi-paradigmatic angle is briefly outlined, taking into account the modern paradigms of globalization