The National Institute for Health and Clinical Excellence (Nice) published guidance in January saying people should wear broad spectrum sunscreens with a minimum factor 15 sun protection (SPF).
The authors note that the novelty factor of having an exercise bike did wear off so additional motivation would be needed to keep employees using them.
This paper presents the application of wear particle analysis to the study of the effect of a particular factor (e. g. ionitriding temperature) on bearing failure.