After the establishment of the first quarantine station in the Republic of Ragusa (modern-day Dubrovnik) in 1377, the states and principalities of Italy developed a sophisticated system of defensive quarantine in an attempt to protect themselves from the ravages of plague. Using largely unknown and unseen historical maps, this paper reconstructs the extent and operation of the system used. It i...

Performance of a gas turbine mainly depends on the inlet air temperature. The power output of a gas turbine depends on the flow of mass through it. This is precisely the reason why on hot days, when air is less dense, power output falls. The objective here is to assess the advanced systems applied in reducing the gas turbine intake air temperature and examine the merits from integration of the ...

OBJECTIVE Despite widespread training with CPR guidelines, CPR is often poorly performed. We explore relationships between knowledge of CPR guidelines and performance (compression rate, compression depth, compression to ventilation ratio, and ventilation volume). METHODS Sixty professional EMTs were sampled at 26 randomly ordered EMS response stations from an urban system of 31 stations. A re...

passive defense is a set of civilian efforts performed to enhance deterrence, reduce vulnerability, sustain essential activities, promote national stability, and facilitate crisis management against military threats of an enemy. since in battles, sensitive and critical areas of cities are of paramount importance,it is clear that in military agressions, a large part of threats are focused on cit...

The purpose of the study was to assess the incidence of alcohol and amphetamine use among long-distance truck drivers. There were studied 91 truck drivers at the gas station in Passos, Southeastern Brazil, in November 2005. Data was collected using a questionnaire comprising 19 multiple choice questions. Descriptive statistics, Chi-square test and Cramér's correlation coefficient were used for ...

Prolonged operation of the gas-transport system in conditions partial loading involves frequent changes volume gas transportation, which necessitates prompt forecasting operation. When modes transport system, main criterion optimality implies maximum pumping. After all, this case, largest profit company is achieved under condition full provision consumers with energy. In incomplete caused by a ...