Nicolas Bost

Learn More
Extraterrestrial habitability is a complex notion. We briefly review what is known about the origin of life on Earth, that is, life based on carbon chemistry and water. We then discuss habitable conditions (past and present) for established life and for the survival of microorganisms. Based on these elements, we propose to use the term habitable only for(More)
UNLABELLED The search for traces of life is one of the principal objectives of Mars exploration. Central to this objective is the concept of habitability, the set of conditions that allows the appearance of life and successful establishment of microorganisms in any one location. While environmental conditions may have been conducive to the appearance of(More)
BACKGROUND This study is the second world survey of critical care nursing organizations (CCNOs). The first survey was undertaken 6 years ago and data were collected from 23 countries over a 2-year period. The aim of the second survey was to profile the issues and activities of critical care nurses and their professional organizations, expanding on the(More)
BACKGROUND Emergency department (ED) crowding caused by access block is an increasing public health issue and has been associated with impaired healthcare delivery, negative patient outcomes and increased staff workload. AIM To investigate the impact of opening a new ED on patient and healthcare service outcomes. METHODS A 24-month time series analysis(More)
  • 1