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https://www.readbyqxmd.com/read/28183028/estimates-of-the-non-market-value-of-sea-turtles-in-tobago-using-stated-preference-techniques
#1
Michelle Cazabon-Mannette, Peter W Schuhmann, Adrian Hailey, Julia Horrocks
Economic benefits are derived from sea turtle tourism all over the world. Sea turtles also add value to underwater recreation and convey non-use values. This study examines the non-market value of sea turtles in Tobago. We use a choice experiment to estimate the value of sea turtle encounters to recreational SCUBA divers and the contingent valuation method to estimate the value of sea turtles to international tourists. Results indicate that turtle encounters were the most important dive attribute among those examined...
February 6, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28164160/pseudomonas-aeruginosa-as-an-etiologic-agent-of-nephrolithiasis-in-deep-water-divers
#2
Victoria Y Bird, Ryan Chastain-Gross, Raymond Sutkowski, Vincent G Bird, Paulas Vyas, Ryan Joseph
Background: A number of occupations and professions may be associated with unique hazards relevant to urologic care. Case Presentation: We relate the presentation, care, and the occupational hazard of urinary tract infection (UTI), presenting as cystitis and pyelonephritis, with stone formation in a scuba diver. The patient voiced concern that his diving suit malfunction was related to his UTI and stone disease. We review the risk of UTI in the diving environment. We also report the development of infection-related stone in this case...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/28128653/possible-central-nervous-system-oxygen-toxicity-seizures-among-us-recreational-air-or-enriched-air-nitrox-open-circuit-diving-fatalities-2004-2013
#3
P Buzzacott, P J Denoble
BACKGROUND: The first diver certification programme for recreational 'enriched air nitrox' (EAN) diving was released in 1985. Concerns were expressed that many EAN divers might suffer central nervous system (CNS) oxygen toxicity seizures and drown. METHODS: US fatalities on open-circuit scuba occurring between 2004-2013, where the breathing gas was either air or EAN, were identified. Causes of death and preceding circumstances were examined by a medical examiner experienced in diving autopsies...
January 27, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28095955/preconditioning-to-reduce-decompression-stress-in-scuba-divers
#4
Peter Germonpré, Costantino Balestra
BACKGROUND: Using ultrasound imaging, vascular gas emboli (VGE) are observed after asymptomatic scuba dives and are considered a key element in the potential development of decompression sickness (DCS). Diving is also accompanied with vascular dysfunction, as measured by flow-mediated dilation (FMD). Previous studies showed significant intersubject variability to VGE for the same diving exposure and demonstrated that VGE can be reduced with even a single pre-dive intervention. Several preconditioning methods have been reported recently, seemingly acting either on VGE quantity or on endothelial inflammatory markers...
February 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28062791/hooked-on-a-career-with-fish
#5
Lydia Brown
Lydia Brown tried many new hobbies while at vet school and found her favourite was scuba diving. That led to a lifelong passion for the sea 'and everything in it'. Unsurprisingly, she soon found herself beginning a career in aquaculture.
January 7, 2017: Veterinary Record
https://www.readbyqxmd.com/read/27966207/partial-retraction-of-lawrence-chd-chen-iyd-the-effect-of-scuba-diving-on-airflow-obstruction-in-divers-with-asthma-diving-and-hyperbaric-medicine-2016-march-46-1-11-14
#6
Christopher Hd Lawrence, Isobel Yd Chen
Consistent with the Committee on Publication Ethics guidelines, we the above authors are initiating a partial retraction of our paper: Lawrence CHD, Chen IYD. The effect of scuba diving on airflow obstruction in divers with asthma. Diving and Hyperbaric Medicine. 2016 March;46(1):11-14. We wish to make the following statement: "Following independent statistical review of our paper we would like to withdraw the following: all subgroup statistical analysis including Table 1 and the statement "∗ P 〈 0.05, non-asthmatic controls vs Group A3 asthmatics" in the legend of Figure 2; the discussion statement: "We hope that these data will provide practitioners assessing and risk stratifying people with asthma prior to diving with a modest evidence basis on which to advise them of their relative risk of airflow obstruction compared to the normal population...
2016: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/27966206/middle-ear-barotrauma-causing-transient-facial-nerve-paralysis-after-scuba-diving
#7
Matthew Lee Carmichael, K Paul Boyev
Middle ear barotrauma is a well known entity with typical injury occurring when diving or ascending in a commercial jetliner. Patients often present with symptoms of acute onset otalgia, hearing loss and sometimes haemotympanum (with or without tympanic membrane perforation). On rare occasions, facial nerve paralysis can occur when the tympanic segment of the facial nerve is dehiscent within the middle ear. We present a case of spontaneously resolving facial nerve palsy associated with middle ear barotrauma following a brief, shallow dive...
December 2016: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/27966205/increasing-the-probability-of-surviving-loss-of-consciousness-underwater-when-using-a-rebreather
#8
REVIEW
Paul Haynes
Re-circulating underwater breathing apparatus (rebreathers) have become increasingly popular amongst sport divers. In comparison to open-circuit scuba, rebreathers are complex life support equipment that incorporates many inherent failure modes and potential for human error. This individually or in combination can lead to an inappropriate breathing gas. Analysis of rebreather diving incidents suggests that inappropriate breathing gas is the most prevalent disabling agent. This can result in spontaneous loss of consciousness (LoC), water aspiration and drowning...
December 2016: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/27966203/estimating-the-risk-of-a-scuba-diving-fatality-in-australia
#9
John Lippmann, Christopher Stevenson, David McD Taylor, Jo Williams
INTRODUCTION: There are few data available on which to estimate the risk of death for Australian divers. This report estimates the risk of a scuba diving fatality for Australian residents, international tourists diving in Queensland, and clients of a large Victorian dive operator. METHODOLOGY: Numerators for the estimates were obtained from the Divers Alert Network Asia-Pacific dive fatality database. Denominators were derived from three sources: Participation in Exercise, Recreation and Sport Surveys, 2001-2010 (Australian resident diving activity data); Tourism Research Australia surveys of international visitors to Queensland 2006-2014 and a dive operator in Victoria 2007-2014...
December 2016: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/27966202/provisional-report-on-diving-related-fatalities-in-australian-waters-in-2011
#10
John Lippmann, Christopher Lawrence, Andrew Fock, Scott Jamieson, Richard Harris
INTRODUCTION: An individual case review of diving-related deaths reported as occurring in Australia in 2011 was conducted as part of the DAN Asia-Pacific dive fatality reporting project. METHOD: The case studies were compiled using reports from witnesses, the police and coroners. In each case, the particular circumstances of the accident and, where available, details from the post-mortem examination are provided. A chain of events analysis was conducted for each case...
December 2016: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/27936044/comparison-of-reef-fish-survey-data-gathered-by-open-and-closed-circuit-scuba-divers-reveals-differences-in-areas-with-higher-fishing-pressure
#11
Andrew E Gray, Ivor D Williams, Kostantinos A Stamoulis, Raymond C Boland, Kevin C Lino, Brian B Hauk, Jason C Leonard, John J Rooney, Jacob M Asher, Keolohilani H Lopes, Randall K Kosaki
Visual survey by divers using open-circuit (OC) SCUBA is the most widely used approach to survey coral reef fishes. Therefore, it is important to quantify sources of bias in OC surveys, such as the possibility that avoidance of OC divers by fishes can lead to undercounting in areas where targeted species have come to associate divers with a risk of being speared. One potential way to reduce diver avoidance is to utilize closed circuit rebreathers (CCRs), which do not produce the noise and bubbles that are a major source of disturbance associated with OC diving...
2016: PloS One
https://www.readbyqxmd.com/read/27932905/macrofaunal-assemblages-associated-with-the-sponge-sarcotragus-foetidus-schmidt-1862-porifera-demospongiae-at-the-coasts-of-cyprus-and-greece
#12
Christina Pavloudi, Magdalini Christodoulou, Michalis Mavidis
BACKGROUND: This paper describes a dataset of macrofaunal organisms associated with the sponge Sarcotragus foetidus Schmidt, 1862, collected by scuba diving from two sampling sites: one in Greece (North Aegean Sea) and one in Cyprus (Levantine Sea). NEW INFORMATION: This dataset includes macrofaunal taxa inhabiting the demosponge Sarcotragus foetidus and contributes to the ongoing efforts of the Ocean Biogeographic Information System (OBIS) which aims at filling the gaps in our current knowledge of the world's oceans...
2016: Biodiversity Data Journal
https://www.readbyqxmd.com/read/27905823/are-recreational-scuba-divers-with-asthma-at-increased-risk
#13
Amalie Ustrup, Charlotte Suppli Ulrik
BACKGROUND AND OBJECTIVE: Asthma has traditionally been regarded as a contraindication to Self-Contained Underwater Breathing Apparatus (SCUBA) diving, although large numbers of patients with asthma dive. The aim of the present review is to provide an update on current knowledge on potential disease-related hazards in SUBA-divers with asthma. METHODS: Systematic literature review based on the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines...
December 1, 2016: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/27843762/dangers-of-flying-high-and-diving-low-an-unusual-case-of-dyspnea
#14
Poornima Ramadas, Rumon Chakravarty, Prathik Krishnan, Anupa Nadkarni
Giant bullae are bullae that occupy at least 30 percent of a hemi thorax. This condition can rarely be idiopathic and not usually suspected in young patients with no risk factors. We describe a case of a giant solitary pulmonary bulla in a healthy young female with no known risk factors. 23-year-old female presented to the Emergency department with dyspnea and pleuritic right sided chest pain. She started experiencing these symptoms when she was on a 7-h flight and later experienced similar symptoms when she went scuba diving...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/27826405/the-effect-of-20-minutes-scuba-diving-on-cognitive-function-of-professional-scuba-divers
#15
Seyedeh Faezeh Pourhashemi, Hedayat Sahraei, Gholam Hossein Meftahi, Boshra Hatef, Bahareh Gholipour
BACKGROUND: Physical activity increases the performance of the nervous system by stimulating the body's metabolism and improving the efficiency of the ATP production system. OBJECTIVES: In the present study, the effect of twenty minutes scuba diving in high depth (10m) on cognitive function and stress system activity was investigated. METHODS: Twelve professional scuba divers with a mean age of 23 ± 1 year, weight of 80 ± 2.5 kg and height of 1...
September 2016: Asian Journal of Sports Medicine
https://www.readbyqxmd.com/read/27811894/prevalence-of-dental-problems-in-recreational-scuba-divers-a-pilot-survey
#16
V Ranna, H Malmstrom, M Yunker, C Feng, S Gajendra
Objective To determine the prevalence of dental symptoms in recreational scuba divers and describe the distribution of these symptoms on the basis of diver demographics, diving qualifications and dive conditions during the episode of dental pain.Design A survey was designed and distributed through online social media platforms dedicated to scuba diving. A convenience sample of 100 recreational divers was obtained by this method.Main outcome measures The outcome measures of interest were: diver demographics, diving characteristics (level of certification, number of dives completed), occurrence of dental problems during a dive, and details of the episode...
November 4, 2016: British Dental Journal
https://www.readbyqxmd.com/read/27795901/the-differentiation-of-common-species-in-a-coral-reef-fish-assemblage-for-recreational-scuba-diving
#17
Tsen-Chien Chen, Cheng-Tze Ho, Rong-Quen Jan
BACKGROUND: Recreational scuba diving is a popular activity of the coral reef tourism industry. In practice, local diving centers recommend interesting sites to help visiting divers make their plans. Fish are among the major attractions, but they need to be listed with care because the temporal occurrence of a fish species is difficult to predict. To address this issue, we propose methods to categorize each fish species based on its long-term occurrence and likelihood of being seen. METHODS: We assume that there are K categories of occurrence of a fish assemblage and propose two methods [an arithmetic-mean method (AM) and a geometric-mean method (GM)] to define the range of species in each category...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27783710/correction-enriched-air-nitrox-breathing-reduces-venous-gas-bubbles-after-simulated-scuba-diving-a-double-blind-cross-over-randomized-trial
#18
Vincent Souday, Nick J Koning, Bruno Perez, Fabien Grelon, Alain Mercat, Christa Boer, Valérie Seegers, Peter Radermacher, Pierre Asfar
[This corrects the article DOI: 10.1371/journal.pone.0154761.].
2016: PloS One
https://www.readbyqxmd.com/read/27771601/r-gas-under-diaphragm
#19
Maddibande Ramachar Sreevathsa, Khyati Melanta
INTRODUCTION: The most common cause of gas under diaphragm is hollow viscous perforation. In 10% of cases it can be due to rare causes, both abdominal and extra-abdominal, one of them being intra abdominal infection by gas forming organisms. PRESENTATION OF THE CASE: A 51 year old male patient, a poorly controlled diabetic, presented with a second episode of severe pain abdomen and abdominal distention, with lower abdominal tenderness. Plain Xray of the abdomen in erect posture showed gas under the right dome of diaphragm and ultrasound abdomen confirmed gross pneumoperitoneum...
October 14, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27761310/a-comprehensive-investigation-of-mesophotic-coral-ecosystems-in-the-hawaiian-archipelago
#20
Richard L Pyle, Raymond Boland, Holly Bolick, Brian W Bowen, Christina J Bradley, Corinne Kane, Randall K Kosaki, Ross Langston, Ken Longenecker, Anthony Montgomery, Frank A Parrish, Brian N Popp, John Rooney, Celia M Smith, Daniel Wagner, Heather L Spalding
Although the existence of coral-reef habitats at depths to 165 m in tropical regions has been known for decades, the richness, diversity, and ecological importance of mesophotic coral ecosystems (MCEs) has only recently become widely acknowledged. During an interdisciplinary effort spanning more than two decades, we characterized the most expansive MCEs ever recorded, with vast macroalgal communities and areas of 100% coral cover between depths of 50-90 m extending for tens of km(2) in the Hawaiian Archipelago...
2016: PeerJ
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