Engines that do not have a water cooling system can not use a heater core; one alternative is to guide air around the (very hot) engine exhaust manifold and then into the vehicle's interior. Temperature control is achieved by mixing with unheated outside air.
OBJECTIVE: The thickness of the prevertebral soft tissue (PVST) is instrumental in helping detect cervical spine injuries in the pediatric population.ormal pediatric prevertebral soft-tissue thickness on MDCT. Vermess D(1), Rojas CA, Shaheen F, Roy P, Martinez CR. Author information: (1)Department of Radiology, University of South Florida College of Medicine, 12901 Bruce B. Downs Blvd, Box 17, Tampa, FL 33612, USA.
Preterm premature rupture of membranes is defined as rupture of the membranes before the onset of labor and before 37 completed weeks' gestation; it is most often associated with genital tract infection. Outcomes in gestations between 20 and 25 weeks with preterm premature rupture of membranes.