Cardiovascular Risk? To the Editor: We have read the article by Kiechl et al1 demonstrating that acquired activated protein C resistance (APC) may be a risk factor for atherosclerosis and arterial thrombosis in whites. We2 previously demonstrated that acquired APC resistance is associated not only with venous thrombosis (deep vein thrombosis and pulmonary thromboembolism) but also with arterial...

The article presents the results of investigation influence natural and mechanical ventilation in a passenger compartment driver's on air flow around bus. experimental research was carried out aerodynamic tunnels. Based measurements, velocities distribution boundary layer determined. Furthermore, effect interior space thickness analysed. are presented form diagram analytical dependencies. aim t...

The frictional resistance coefficient of ventilation a roadway in coal mine is very important technical parameter the design and renovation ventilation. Calculations based on empirical formulae field tests to calculate have limitations. An inversion method by using few representative data air flows node pressures proposed this study. mathematical model developed principle least squares. measure...