This study investigates a generalization of the Canadian Traveller Problem (CTP), which finds real applications in dynamic navigation systems used to avoid traffic congestion. Given a road network G = (V,E) in which there is a source s and a destination t in V , every edge e in E is associated with two possible distances: original d(e) and jam d(e). A traveller only finds out which one of the t...

Hantavirus hemorrhagic fever with renal syndrome is endemic in Europe and Asia, while hantavirus cardiopulmonary syndrome (HCPS) is endemic in Northern, Central and Southern America. The first case of imported HCPS involving an Italian traveller returning from Cuba is reported.

Mobile services available on mobile devices such as mobile phones and Personal Digital Assistants are a suitable instrument for spontaneous, ad-hoc access to information travellers need while being on the move. The supply of mobile services with specific relevance to the traveller is already well developed: Mobile Services allow to book last-minute trips, rental cars and hotels; they provide in...

An impactor method was used to assess the amount of beclomethasone dipropionate in particles less than 5 microns produced by two nebulisers (Pari Inhalierboy, Medix Traveller compressor with cirrhus nebuliser chamber) and two spacer devices (Volumatic and Nebuhaler). After nebulisation of 3 ml (150 micrograms) beclomethasone dipropionate the amount of drug in particles less than 5 microns was 1...