Introduction. Calculation methods and current normative documents used in the calculation of buildings for resistance to progressive collapse are considered. The key analysis listed fundamenta.rules each them stated. advantages disadvantages these analyzed. Materials methods. calculations stability have been carried out a multi-span flat frame at failure middle post ground floor. software compl...

OBJECTIVE To compare the responses of noninvasively measured tissue oxygen saturation (StO2) and calculated muscle oxygen tension (PmO2) to standard hemodynamic variables for early detection of imminent hemodynamic instability during progressive central hypovolemia in humans. DESIGN Prospective study. SETTING Research laboratory. SUBJECTS Sixteen healthy human volunteers. INTERVENTIONS ...