OBJECTIVE To determine whether divers with histories of neurological decompression illness are electroencephalographically distinguishable from non-divers. METHODS The electroencephalograms (EEGs) from 68 divers with histories of neurological decompression illness and 45 non-diver controls were examined independently by two clinical neurophysiologists. RESULTS The diver and non-diver groups...

BACKGROUND Environmental stressors require the professional diver to undergo a complex process of psychophysiological adaptation in order to overcome the demands of an extreme environment and carry out effective and efficient work under water. The influence of cognitive and personality traits in predicting underwater performance and adaptation has been a common concern for diving psychology, an...

Micro respirometry studies, with the aid of the Cartesian diver (1, ,2), have presented several problems in manipulation. One of these has been the problem of mixing two or more solutions quantitatively in the diver, after the start of an experiment. Methods have been described accomplishing this (3,4). These methods could be mastered only by special training, patience, and skill. A much less d...

BACKGROUND Deep decompression stops are increasingly common in recreational technical diving. Concerns exist that they shift decompression stress back into slower tissues. A diver recorded an exceptional exposure dive, with deeps stops, on a commercially available dive computer. MATERIAL AND METHODS Using the R package SCUBA tissue inert gas pressures in 17 Bühlmann (ZH-L16A) compartments wer...

Obstacle detection plays an important role in unmanned surface vehicles (USV). Continuous detection from images taken onboard the vessel poses a particular challenge due to the diversity of the environment and the obstacle appearance. An obstacle may be a floating piece of wood, a scuba diver, a pier, or some other part of a shoreline. In this paper we tackle this problem by proposing a new gra...

In th is paper we describe an animation of a human platform diver. We simulated the motion of the diver using a dynamic model and a control system. The dynamic model is a 32 degree-of-freedom rigid body model with dynamic parameters similar to those reported in the literature for humans. The control system uses algorithms for balance , jumping, and twisting to initiate the dive , proportionalde...

Facebook takes performance monitoring seriously. Performance issues can impact over one billion users so we track thousands of servers, hundreds of PB of daily network traffic, hundreds of daily code changes, and many other metrics. We require latencies of under a minute from events occuring (a client request on a phone, a bug report filed, a code change checked in) to graphs showing those even...

Video-on-demand (VOD) is one of the most promising multimedia applications of the near future. In order for such a service to be commercially viable, eecient video retrieval schemes need to be designed. The retrieval scheme should be capable of supporting a large number of users at a high Quality of Service (QoS). In 9], we proposed the Quasi-static Interactive Video Retrieval (QuIVeR) protocol...

Posidonia oceanica meadows are ecosystem engineers which, despite their ecological relevance, experiencing habitat fragmentation and area decrease. Cartography information on the status of these habitats is key to an effective maritime spatial planning management for conservation. In this work we apply acoustic methodology map benthic (substrate vegetation) in archipelago Natura 2000 Network cl...