Results 41 to 50 of about 287,221 (356)

Oxygen Toxicity and Special Operations Forces Diving: Hidden and Dangerous

Frontiers in Psychology, 2017
In Special Operations Forces (SOF) closed-circuit rebreathers with 100% oxygen are commonly utilized for covert diving operations. Exposure to high partial pressures of oxygen (PO2) could cause damage to the central nervous system (CNS) and pulmonary ...
Thijs T. Wingelaar, Thijs T. Wingelaar, Pieter-Jan A. M. van Ooij, Rob A. van Hulst   +3 more
doaj   +1 more source

Contribution of Adenosine in the Physiological Changes and Injuries Secondary to Exposure to Extreme Oxygen Pressure in Healthy Subjects

Biomedicines, 2022
Climbers and aviators are exposed to severe hypoxia at high altitudes, whereas divers are exposed to hyperoxia at depth. The aim of this study was to report changes in the adenosinergic system induced by exposure to extreme oxygen partial pressures.
Alain Boussuges, Jeremy Bourenne, Farid Eloufir, Julien Fromonot, Giovanna Mottola, Jean Jacques Risso, Nicolas Vallee, Fabienne Bregeon, Régis Guieu   +8 more
doaj   +1 more source

Inexpensive anti-fog coating for windows [PDF]

, 1971
Coating applications include anti-fog protection for deep-sea diving equipment, fire protection helmets, and windows of vehicles used in hazardous environments.
Carmin, D. L., Jr., Morrison, H. D.
core   +1 more source

Novel Functional Materials via 3D Printing by Vat Photopolymerization

Advanced Functional Materials, EarlyView.
This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov, Patrick Fesser, Boris A. Bulgakov, Ulrich S. Schubert   +3 more
wiley   +1 more source

Case report: tracheobronchial diverticulum, a potential risk for diving?

Frontiers in Medicine
Tracheobronchial diverticulum (TBD) is an asymptomatic, benign cystic lesion outside the lumen of the trachea and bronchus. This is the first report case of a SCUBA (self contained underwater breathing apparatus) diver diagnosed with TBD, which is a ...
Long Qing, Yan Wang, Meng Zhang, Qinqin Pu, Wanwan Cai, Yaping Pan, Delin Xia   +6 more
doaj   +1 more source

Combating Food Waste: Dumpster Diving as a Form of Consumer Resistance [PDF]

, 2018
This paper explores North America’s food waste issue associated with our current industrial globalized food system. Through a sociocultural lens, this essay examines the new social movement of dumpster diving among food waste activists and ‘freegans’ in ...
Vaughan, Brock J.
core   +1 more source

Conditioning bounds for traveltime tomography in layered media [PDF]

, 2011
This paper revisits the problem of recovering a smooth, isotropic, layered wave speed profile from surface traveltime information. While it is classic knowledge that the diving (refracted) rays classically determine the wave speed in a weakly well-posed ...
Abramowitz M, Aki K, Bal G, Bateman H, Collar A R, DeVore R, Grenander U, H Baek, Herglotz G, Knutson A, L Demanet, Leung S, Shearer P, Shohat J, Simon B, Stefanov P, Stork C, Whitham G B, Wiechert E   +18 more
core   +3 more sources

Artificial Symbiosis for Bulk Production of Bacterial Cellulose Composites

Advanced Materials, EarlyView.
Co‐cultivation of the cellulose‐producing bacterium with the microalga enables bulk formation of bacterial cellulose under static incubation, with photosynthetically active oxygen‐generating sites throughout the medium. This symbiotic platform supports 3D cellulosic constructs with geometries dictated by the vessel shape.
Kui Yu, Sing Teng Chua, Ran Zhao, Alyssa Smith, Michael Kühl, Alison G. Smith, Tom Ellis, Silvia Vignolini   +7 more
wiley   +1 more source

The Crustacean and Molluscan Fisheries of Honduras [PDF]

, 1996
Honduras has many communities of artisanal fishermen who land various species of crustaceans and mollusks, using hands, nets, traps, and free diving from shore and from dugout canoes.
MacKenzie, Jr. , Clyde L., Stehlik, Linda L.   +1 more
core  

Changes to eating habits of young men after finishing a diving course [PDF]

, 2014
At the Military Academy Vyškov in the Czech Republic there are diving courses arranged for soldiers. The courses take two months. The young men coming to the courses have different eating habits that they have gained in the family and/or in the military ...
Juříková, Jana
core   +2 more sources