Shirley Yang

1 Introduction China's rapid industrialisation has prompted mass rural-to-urban migration. Despite migrants' significant contribution to economic growth, they have been largely excluded from the urban welfare system due to the hukou system, which determines welfare provision and citizenship rights based on one's birthplace.

Abstract Introduction: Venous malformations (VMs) are congenital malformations of the venous system. Histologically, they are composed of dilated vascular channels. Prior studies have demonstrated that CD31 + endothelial cells (ECs) in VMs have pathogenic variants. Recent studies by our group found that the EC progenitor marker, CD133+, was expressed on VM endothelium in patient tissues. We hypothesized that a CD133+ VM endothelial cells contributes to VM pathobiology.

It has the potential to provide an almost limitless supply of energy with virtually no emissions, making it a highly attractive option to help combat climate change. It is considered to be a clean and virtually limitless source of energy, as it does not produce harmful greenhouse gases or toxic waste products. Where hydrogen atoms fuse together to form helium, releasing a large amount of energy in the process.