for the polynomial planar vector fields with a hyperbolic or nilpotent critical point at the origin, the monodromy problem has been solved, but for the strongly degenerate critical points this problem is still open. when the critical point is monodromic, the stability problem or the center- focus problem is an open problem too. in this paper we will consider the polynomial planar vector fields ...

this paper explores people’s behavior when they are facing financial risks. through the setting of an economics experiment, people’s willingness to bear financial risks and their tendency to impose risks on others are investigated. the experiment result shows that most people are risk-neutral or risk-averse when making decision under financial environment, and their tendency to impose risks on ...

This paper aims to provide a comprehensive picture of risk governance and conceptualize an approach dealing with multi-risks in the Metropolitan Region Lima, Peru. We argue that impacts extreme events are not solely determined by given place-based vulnerability profile but considerably influenced cascading effects caused service disruptions critical infrastructures, which may even take place ou...

BACKGROUND Unplanned extubation represents a threat to patient safety, and risk factors and prevention strategies for unplanned extubation have not been fully explored. OBJECTIVES To define high-risk patients for unplanned extubation and determine clinicians' beliefs on perceived risks for unplanned extubation METHODS With a Web-based survey instrument we surveyed critical care clinician me...