background and objective: needle stick injuries (nsis) are a common potential risk for healthcare workers. the aim of this study was to evaluate preventive interventions against needle stick injury incidents among hcws.   methods: seven hospitals in the iranian chaharmahal-va-bakhtiari province were surveyed between march 2008 to march 2013. data of the needle stick injuries of healthcare worke...

Self-monitoring activities are increasingly parts of people’s everyday lives. Some of these measurements are performed voluntary rather than being referred by a physician, and conducted because of either a preventive health interest, or to better understand the body and its functions (so-called ‘Quantified Self’). In this article, we explore socio-technical complexities that may occur when intr...