INTRODUCTION: Chagas disease is considered the most serious parasitosis in America, forgotten and neglected in the world, with a characteristic that has its maximum expression in the difficulties and limitations for its diagnosis and treatment.OBJECTIVE: To assess the status of seropositivity of Chagas disease in Mexico, in addition to monitoring t
With the Newsroom at Home: Routines and Tensions of Women Journalists in Times of Covid-19
Action Figure This article identifies the routines and working practices of women journalists from Colombia and Venezuela in the framework of the health emergency caused by covid-19 in the countries where they work.It is a quantitative research at a descriptive cross-sectional level in which an instrument made up of 26 questions organized into five
Path Following and Obstacle Avoidance for Unmanned Aerial Vehicles Using a Virtual-Force-Based Guidance Law
This paper presents a virtual-force-based guidance law (VFGL) for path following and obstacle avoidance in unmanned aerial vehicles.First, a virtual spring force and a virtual drag force are designed for straight-line following; then, the dynamic of the cross-track-error is equivalent to a spring mass system, which is easy to tune to acquire stabil
Optimal preventive maintenance strategies for a wind turbine gearbox
This paper investigates two maintenance strategies for wind turbine gearboxes.The first one is frequently adopted in practice.It consists in monitoring the state of the gearbox through its temperature.As soon as the latter reaches a predefined threshold level, production rate is drastically reduced by slowing down the wind turbine while cooling the