[Presenteeism and workers' health: effects of mediation on psycho-physical stress in a longitudinal study].

The present work aims to investigate the phenomenon of presenteeism, a construct still little studied, especially in Italy, in its medical, psychological, social and economic implications. In the first part we propose a review of the international literature, and of the meanings, causes and consequences of the phenomenon on individual and organizational health. In the second part, we present a study which involved, for a period of about a year, 326 workers of a company in the engineering industry.

Risky riding behavior on two wheels: the role of cognitive, social, and personality variables among young adolescents.

Objective: The main objective of this study was to analyze and estimate the relations between risky riding behaviors and some personality and sociocognitive variables through structural equation modeling. We focused on two-wheel riding behavior among a sample of 1,028 Italian adolescents at their first driving experience.

Conclusions: The main findings confirmed the role of personality in influencing riding behavior directly as well as indirectly through risk perception.