BACKGROUND: Computer tomography (CT)-guided lung biopsy carries the risk of pneumothorax.A variety of other risk factors affect the occurrence of pneumothorax.OBJECTIVE: Assess the incidence and risk factors associated with pneumothorax complications in CT-guided lung biopsy, and to conduct a quantitative analysis of the variables among the signifi
In this paper, a mathematical model of the COVID-19 pandemic with lockdown that provides a more accurate representation of the infection rate has been analyzed.In this model, the total population is divided into six compartments: the Beauty susceptible class, lockdown class, exposed class, asymptomatic infected class, symptomatic infected class, an
Altogether about 2500 volcanoes exist on Earth, and during the last 3500 years, 959 of them erupted.About 360 mln.people live in dangerous proximity to actve volcanoes.On average about 50 volcanoes erupt each year.Catastrophic events may result Wall Taps from six volcanic processes, viz.1) ejection of rock debris; 2) lava flows; 3) ejection of volc