BACKGROUND Avoidable hospitalizations (AH) are hospital admissions for diseases and conditions that could have been prevented by appropriate ambulatory care. We examine regional variation of AH in Switzerland and the factors that determine AH. METHODS We used hospital service areas, and data from 2008-2010 hospital discharges in Switzerland to examine regional variation in AH. Age and sex sta...

During a study of the capacity of Syrian hamster cells derived from various organs to transform in vitro after exposure to simian virus 40 (SV40), it was found that cells from lung and liver responded differently compared to those from certain other organs. The most significant difference was the apparent absence of the viral genome in lung and liver cultures that eventually underwent transform...

OBJECTIVE The purpose of this study was to evaluate the release of formaldehyde by some root canal filling materials. STUDY DESIGN Two older endodontic sealers, AH 26 and Endomethasone, and 2 recently available sealers, AH Plus and Top Seal, were analyzed. Infrared and electronic spectroscopy were used to determine formaldehyde content after set of the materials. RESULTS Analysis showed tha...

This archeoseismologic study focuses on the Leukos settlement that thrived west coast of forearc island Karpathos in 4th−6th centuries CE. The onshore site occupies eastern rim offshore Basin, deepest Aegean basin, a sector Hellenic typically regarded as seismically insignificant. Investigations faulting, sedimentary processes, and secondary earthquake effects (hydraulic fracturing, liquefactio...

To evaluate the significance of the refractory period and conduction time of the AV node for reentrant tachycardias incorporating the AV node, the effective refractory period of the AV node (ERP) and AH interval (AH) during atrial pacing at various cycle lengths were measured in 12 anesthetized dogs after verapamil administration. ERP-AH tended to be constant in each dog at different cycle leng...