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This paper aims to propose a qualitative and quantitative fire and explosion risk assessment in home environments due to the use of LPG cylinder. The study focuses on all variables that can contribute to the fire and explosion risks, focusing on how trained and informed person influences events. Traditional risk assessment techniques cannot be incisive due to their static nature. To overcome this limit a System Dynamics simulation model, a risk assessment within systemic approach, is proposed. In fact this study suggests a conceptual model for risk assessment in home environment and demonstrate that adequate training, more information of occupants and the proper installation and maintenance of devices, reduce the number of accidents and deaths with encouraging results. The use of System Dynamic allows to understand how variables affect each other and evolve over time as well as their influence over. [ABSTRACT FROM AUTHOR]

The following paper is focused on the operating conditions for the implementation of tertiary sector marketing planning. This issue, related to the instruments and techniques from which it stems, constitutes the essential tool to compete in western markets of services. The suggested approach is oriented to design a technical model determined by conditions set selected. We used four groups of performance indicators, able to define the business strategic position of company. Afterwards using the system dynamics criteria we suggest a CLD graph which represents the interactions among the several factors that influence the company behavior related to its strategy evolution. The model is characterized for the financial market, so that the performance indicator are assessed for a bank. In the case of study we analyze a specific Bank operating in southern of Italy and we define the new marketing strategy starting from its current state and market objects through the proposed model. [ABSTRACT FROM AUTHOR]