'Darwin is the greatest of all scientists, greater even than Newton or Einstein, and I am quite certain that my own thinking has been more deeply influenced by the evolutionary concepts of Darwin than by anything else' (Burnet, 1966). 'Life must have begun as some particular configuration of atoms, an inconceivably tiny knot of molecular structure, which by some freak of circumstance was able t...

INTRODUCTION: For seafarers are characteristic a number of ecopathic factors that might provoke the emergence and progression periodontal disease. Pre-voyage oral rehabilitation is an important component, aimed at timely detection, treatment recurrence prevention disease on long voyage. OBJECTIVES: The study focused detecting among seafarers, determining cause, contributing to its progression, ...