SAFE IMPLEMENTATION OF SURGICAL INNOVATION: A PROSPECTIVE REGISTRY OF THE VERSIUS ROBOTIC SURGICAL SYSTEM





Repeated Demographic-Structural Crises Propel the Spread of Large-scale Agrarian States Throughout the Old World

I investigate the geographical consequences of demographic-structural dynamics using a spatially resolved agent-based model of agrarian empires in several Old World regions between 1500 BCE and 1500 CE.I estimate and bound key model parameters from two historical datasets.Although several very large-scale Embroidery Hoops polities (e.g., Roman, Per

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