Results 231 to 240 of about 341,566 (269)
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The Journal of Sports Medicine, 1974
Heart rate response to apnea in air and water during rest and steady-state exercise was studied in 20 male college students Significant bradycardia (p < 0.05) due to apnea was observed at rest and during exercise A significant increase in bradycardia (P < 0 01 ) due to apneic face immersion in water was observed at rest and during exercise.
Burke, Edmund J., Lynch, Peter R.
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Heart rate response to apnea in air and water during rest and steady-state exercise was studied in 20 male college students Significant bradycardia (p < 0.05) due to apnea was observed at rest and during exercise A significant increase in bradycardia (P < 0 01 ) due to apneic face immersion in water was observed at rest and during exercise.
Burke, Edmund J., Lynch, Peter R.
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British Journal of Orthodontics, 1990
A report is presented of a scuba diver who was unable to dive using a normal commercial mouthpiece due to wearing a fixed orthodontic appliance. The situation was resolved with the provision of a customized mouthpiece of simple design and manufacture.
C M, Jones, J, Graham
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A report is presented of a scuba diver who was unable to dive using a normal commercial mouthpiece due to wearing a fixed orthodontic appliance. The situation was resolved with the provision of a customized mouthpiece of simple design and manufacture.
C M, Jones, J, Graham
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Metastable Underwater Superhydrophobicity
Physical Review Letters, 2010Superhydrophobicity is generally considered to be a thermodynamically stable wetting state. The stability of the plastron (the thin air film separating the substrate from the water in the superhydrophobic state) was studied in underwater experiments. The plastron exhibited a rapid decay after a well defined onset time, which was found to be dependent ...
Poetes, Rosa +3 more
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Bioinspired Underwater Adhesives
Advanced Materials, 2021AbstractUnderwater adhesives are in high demand in both commercial and industrial sectors. Compared with adhesives used in dry (air) environments, adhesives used for wet or submerged surfaces in aqueous environments have specific challenges in development and performance.
Hailong Fan, Jian Ping Gong
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Ellipsis: A Journal of Art, Ideas, and Literature, 2015
The underwater environment - Preparations before travel - Diving medicine - Effects of high-pressure gases - Decompression sickness - Barotrauma - Other ...
Chris Johnson +4 more
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The underwater environment - Preparations before travel - Diving medicine - Effects of high-pressure gases - Decompression sickness - Barotrauma - Other ...
Chris Johnson +4 more
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Proceedings of the Royal Society of London. Series B. Biological Sciences, 1960
The following is an introduction to the differences between water and air as media for propagating sound. What follows and more information on underwater sound can be found in Horton (1957). The main difference between air and water as media for propagating sound lies in their characteristic impedance. This quantity Z
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The following is an introduction to the differences between water and air as media for propagating sound. What follows and more information on underwater sound can be found in Horton (1957). The main difference between air and water as media for propagating sound lies in their characteristic impedance. This quantity Z
openaire +2 more sources