نتایج جستجو برای: scuba diving
تعداد نتایج: 5732 فیلتر نتایج به سال:
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...
INTRODUCTION We report the case of a 19-year-old male military recruit who presented for a screening physical for U.S. Naval Special Warfare and Diving Duty. During his screening physical examination, an exophytic pericardial cyst was discovered. Subsequent work-up revealed normal cardiopulmonary function despite this large 7-cm mass, but the candidate was disqualified due to concerns regarding...
BACKGROUND Scuba diving fishing, predominantly targeting sea cucumbers, has been documented to occur in an uncontrolled manner in the Western Indian Ocean and in other tropical regions. Although this type of fishing generally indicates a destructive activity, little attention has been directed towards this category of fishery, a major knowledge gap and barrier to management. METHODOLOGY AND P...
Though there are theoretical risks to scuba diving after undergoing chemotherapy with bleomycin, this case report demonstrates that it may be done without obvious injury if one takes adequate precautions. In this case, one year was allowed to elapse prior to a return to diving. Subsequently 52 dives have been accomplished with no observable adverse effects. Studies are recommended to determine ...
Pneumoperitoneum usually indicates rupture of a hollow viscus and considered a surgical emergency. But air may also enter the peritoneum from the lung or the genital organs in female without visceral perforation. While scuba diving, the rapid ascent is usually controlled by placing in a decompression chamber and the excess gas volume is exhaled. Failure to allow this excess gas to escape will r...
Artificial reefs are increasingly used worldwide as a method for managing recreational diving since they have the potential to satisfy both conservation goals and economic interests. In order to help maximize their utility, further information is needed to drive the design of stimulating resources for scuba divers. We used a questionnaire survey to explore divers' perceptions of artificial reef...
Background: Within the components of Scuba diving there are similarities with meditation and mindfulness techniques by training divers to be in a state of open monitoring associated with slow and ample breathing. Perceived stress is known to be diminished during meditation practice. This study evaluates the benefits of scuba diving on perceived stress and mindful functioning. Method: A recreati...
144,000 hits on Google for the two words “bleomycin” and “scuba” demonstrate the continued interest in the subject of diving after bleomycin therapy; some very conservative, and some more liberal regarding recommendations. My thanks to UHM, which published “Scuba diving post-bleomycin therapy” (UHM 2010, Vol. 37, No. 6, p. 455), documenting a recreational diver’s return to scuba after his chemo...
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