Results 21 to 30 of about 190,619 (239)

Effects of hypoxia on benthic macrofauna and bioturbation in the Estuary and Gulf of St. Lawrence, Canada [PDF]

open access: yes, 2010
The bottom water in the 4300 m deep Lower St. Lawrence Estuary (LSLE) is persistently hypoxic in contrast to the normoxic bottom waters in the Gulf of St. Lawrence (GSL). We photographed the seabed at 11 stations in the Estuary and Gulf of St.
Archambault, Philippe   +4 more
core   +4 more sources

Effects of Normobaric Hypoxia on Oculomotor Dynamics of Aviator Students during a Simulated Flight Task [PDF]

open access: yes, 2020
Hypoxia occurs when the body\u27s tissues are unable to obtain adequate oxygen supply and is the primary environmental factor present when pilots are exposed to increasing altitude levels.
Blackley, Anna   +11 more
core   +1 more source

The effects of environmental hypoxia on substrate utilisation during exercise: a meta-analysis [PDF]

open access: yesJournal of the International Society of Sports Nutrition, 2019
A better understanding of hypoxia-induced changes in substrate utilisation can facilitate the development of nutritional strategies for mountaineers, military personnel and athletes during exposure to altitude. However, reported metabolic responses are currently divergent.
John P. O'Hara   +7 more
openaire   +5 more sources

The Influence of Body Size and Hemoglobin Multiplicity on Critical Oxygen Threshold in Red Drum (Sciaenops ocellatus) [PDF]

open access: yes, 2016
Hypoxia is common in marine environments and fishes use a suite of cardiorespiratory adjustments to defend aerobic metabolism, including reducing standard metabolic rate (SMR), the minimum metabolic rate needed to sustain life at a specified temperature,
Pan, Yihang
core   +1 more source

Hypoxia and other environmental factors at high altitude

open access: yesInternational Journal of Environment and Health, 2008
Besides hypoxia, high altitude settings are characterised by other peculiar environmental factors, such as cold and ultraviolet radiation. In addition, there are prevalent environmental changes driven mainly by human activity, including climate change in the highland Andes, and outdoor and indoor pollution.
Adolfo Castillo   +2 more
openaire   +2 more sources

Acute environmental hypoxia induces LC3 lipidation in a genotype‐dependent manner [PDF]

open access: yesThe FASEB Journal, 2013
Hypoxia-induced muscle wasting is a phenomenon often described with prolonged stays at high altitude, which has been attributed to altered protein metabolism. We hypothesized that acute normobaric hypoxia would induce a negative net protein balance by repressing anabolic and activating proteolytic signaling pathways at rest and postexercise and that ...
Masschelein, Evi   +5 more
openaire   +3 more sources

Dietary nitrate increases arginine availability and protects mitochondrial complex I and energetics in the hypoxic rat heart [PDF]

open access: yes, 2014
This is the final version. It was first published by Wiley in The Journal of Physiology at http://onlinelibrary.wiley.com/doi/10.1113/jphysiol.2014.275263/abstract.Hypoxic exposure is associated with impaired cardiac energetics in humans and altered ...
Andrew J. Murray   +11 more
core   +2 more sources

Deaths from Environmental Hypoxia and Raised Carbon Dioxide [PDF]

open access: yesAcademic Forensic Pathology, 2018
This paper reviews deaths in which there is an environment that is low in oxygen and/or has elevated levels of carbon dioxide. These deaths present problems to autopsy pathologists, as the autopsy is typically negative and postmortem toxicology cannot be used to detect the effects of hypoxia and raised levels of carbon dioxide. Deaths from hypoxia and
openaire   +2 more sources

Effect of acute environmental hypoxia on protein metabolism in human skeletal muscle [PDF]

open access: yesActa Physiologica, 2013
AbstractHypoxia‐induced muscle wasting has been observed in several environmental and pathological conditions. However, the molecular mechanisms behind this loss of muscle mass are far from being completely elucidated, certainly in vivo. When studying the regulation of muscle mass by environmental hypoxia, many confounding factors have to be taken into
D'Hulst, Gommaar   +5 more
openaire   +5 more sources

Sleep loss effects on physiological and cognitive responses to systemic environmental hypoxia

open access: yesFrontiers in Physiology, 2022
In the course of their missions or training, alpinists, but also mountain combat forces and mountain security services, professional miners, aircrew, aircraft and glider pilots and helicopter crews are regularly exposed to altitude without oxygen supplementation.
Pierre Fabries   +13 more
openaire   +3 more sources

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