The aim of this article is to investigate some implications of complexity in workplace risk assessment. Workplace is examined as a complex system, and some of its attributes and aspects of its behavior are investigated. Failure probability of various workplace elements is examined as a time variable and interference phenomena of these probabilities are presented. Potential inefficiencies of common perceptions in applying probabilistic risk assessment models are also discussed. This investigation is conducted through mathematical modeling and qualitative examples of workplace situations. A mathematical model for simulation of the evolution of workplace accident probability in time is developed. Its findings are then attempted to be translated in real-world terms and discussed through simple examples of workplace situations. The mathematical model indicates that workplace is more likely to exhibit an unpredictable behavior. Such a behavior raises issues about usual key assumptions for the workplace, such as aggregation. Chaotic phenomena (nonlinear feedback mechanisms) are also investigated for in simple workplace systems cases. The main conclusions are (1) that time is an important variable for risk assessment, since behavior patterns are complex and unpredictable in the long term and (2) that workplace risk identification should take place in a holistic view (not by work post).

This paper aims to help enhance the process of risk identification and assessment in small enterpriseshuman error risk perception accident models risk assessment

<p>The Greek National Health System (ESY) has<br />undergone many attempts for reform. The<br />fi rst one is traced back during the fi rst years<br />after its foundation in 1983 and the last one<br />is dated during 2005. Following a description<br />of the characteristics and the development<br />of the ESY, this study reviews the tendencies<br />of its reforms interpreting them according to<br />criteria which stem from the Greek experience<br />of economic and social development. The<br />comparison of the ESY’s development with<br />the potential outcomes of the national health<br />systems of other European countries, due<br />to recent reforms, is approached from the<br />perspective that these reforms have the<br />tendency to transfer the weight of fi nancing,<br />especially in the case of the public hospital,<br />away from the national budget upon private<br />family budgets.</p>

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Αντωνοπούλου, Λ. (1991). Ελληνικό ή ξένο φάρμακο;: στατιστική διερεύνηση, με την ανάλυση των αντιστοιχιών, της επιλογής των γιατρών στην περιοχή της Θεσσαλονίκης.