Capacity limit is a bottleneck for broader applications of blockchain systems.Scaling up capacity while preserving security and decentralization are major challenges in blockchain infrastructure design.In this paper, we design a proof of work-based mechanism by endowing directed acyclic graphs (DAG) with a novel structure so that peers can reach co
Abstract The pandemic reminded us that the pathogen evolution still has a serious effect on human King Kong societies.States, however, can prepare themselves for the emergence of a novel pathogen with unknown characteristics by analysing potential scenarios.Game theory offers such an appropriate tool.In our game-theoretical framework, the state is
Context: Placenta accreta is the abnormal adherence of the placenta to the uterine wall and the most common cause for emergency postpartum hysterectomy.Accurate prenatal diagnosis of affected pregnancies allows optimal obstetric management.Aims: To summarize our experience in the antenatal diagnosis of placenta accreta on imaging in a tertiary care