A pneumomediastinum is a condition in which air is present in the mediastinum. It can result from a pulmonary barotrauma which occurs during sCUBA (self contained underwater breathing apparatus) diving. We report on a fifteen-year-old patient who suffered from a pulmonary barotrauma including a pneumomediastinum after sCUBA diving. The patient was admitted to the PICU (Paediatric Intensive Care...

Medical observations are reported from an eight-day world championship breath-hold diving competition involving 57 participants. The deepest dive was to 75 metres, and the longest breath-hold time exceeded 9 minutes. There were 35 diving-related adverse events witnessed or reported, including transient loss of motor control due to hypoxia, syncope during ascent, hemoptysis, and pulmonary edema....

Diving with an underwater breathing apparatus has been the subject of research in several scientific areas for a long time. Decompression and recompression are complex and involve knowledge of physics and physiology. The purpose of this article was to review the basic physics of autonomous diving and to describe phenomena not so obvious to scientists working in other fields. Special emphasis wa...

Avian lice occupy different habitats in the host plumage that the physical environment outside the host body may affect in several ways. Interactions between host plumage and water may be an important source of such effects. Here, we use a comparative approach to examine the effect of a host's diving behavior on the taxonomic richness of its lice. Louse genera richness was significantly lower i...