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The Eurasian Tunnel is a 5.64-km crossroad tunnel that connects Europe and Asia. Located under the seabed for the first time, 3.34 km of the tunnel that crosses the Bosphorus was built by advanced tunneling techniques. An exclusively designed tunnel boring machine (TBM), which has an operating pressure of 11 bars and a diameter of 13.7 meters was used for boring the seabed tunnel. The deepest point was 106 meters below sea level. One bounce diving period and seven saturation diving periods were needed for the repair and maintenance of the TBM during the project. Total time spent under ..
Introduction: Head-out water immersion (HOWI) results in diuresis, which could potentially limit performance after egress to land. We examined the effect of rehydration on endurance, cardiovascular stability, and overnight recovery following a fourhour thermoneutral HOWI on 12 subjects. Methods: Twelve males completed a crossover design consisting of no hydration, replacement of fluid loss during immersion (RD), and replacement of fluid after the immersion period (RA). Sixty minutes following immersion, subjects ran to exhaustion at ~80% maximum heart rate. After completing the run, each subject submitted to a head-up tilt test (HUTT). Vital signs and ECG were monitored overnight. Results: ..
Panic arising from physical or psychological stress is a common issue in reported incidents and accidents in scuba diving. Due to its effect on perception, thinking and diver behavior, the panic reaction is often a significant factor in the generation or escalation of problems, potentially leading to injuries and fatalities. The instinctive behaviors associated with panic are incompatible with the constraints of scuba diving (e.g., flight response to threat, leading to rapid ascent). Although the dangers are wellknown, the psychological mechanisms of panic and the implications for prevention/risk reduction are not sufficiently highlighted to recreational divers. In applied psychology, ..
This report summarizes some of the most relevant studies during the 2017-2018 academic year of scientific literature for diving medicine. The article selection is the result of a PubMed search for “diving,” as well as a manual review of the journals Undersea and Hyperbaric Medicine and Diving and Hyperbaric Medicine. Four articles were published reporting on new advances in decompression modeling. New consensus guidelines in the prehospital treatment of decompression sickness were published as well as a retrospective review of the efficacy of the U.S. Navy Treatment Tables. Several articles were published this year researching cardiovascular health and fitness ..
Introduction: Hyperbaric exposure mimics air-breathing scuba diving, which is reaching enormous popularity around the world. The diver’s body is subjected to a broad range of divergent effects exerted by, e.g.: an increased partial pressure of inert gases, microclotting, oxidative stress and/or production of gas bubbles. However, very little is known regarding the impact of hyperbaric exposure on plasma fatty acids content and composition, together with the body’s sphingolipids profile. Material and Methods: The aim of this study was to investigate the contents of major fatty acids present in the plasma as well as sphingolipids, namely: sphingosine (SPH); sphingosine1-phosphate (S1P); ..
Diving fisheries are an important source of income and protein for many coastal communities around the world. However, these fisheries are also the cause of both fatal and non-fatal injuries. The aim of this study is to estimate the costs of decompression sickness (DCS) in the diving small-scale fisheries that target benthic resources in the Yucatan, Mexico. The DCS cases that occurred during three fishing seasons for sea cucumber (Isostichopus badionotus) and one for spiny lobster (Panulirus argus) were used to calculate the direct medical costs. The catch data during the same fishing seasons were used to calculate the ..
Session B - HBO2 therapy mechanisms10.22462/9.10.2018.8 
Session D - Clinical HBO2 therapy10.22462/9.10.2018.10
Session E - HBO2 operations, chambers & equipment 10.22462/9.10.2018.11
Session F - Top case reports 10.22462/9.10.2018.12
Author Index   10.22462/9.10.2018.13

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