Results 1 to 10 of about 347,511 (234)

Oxygen metabolism and oxygenation of the newborn [PDF]

open access: yesSeminars in Fetal and Neonatal Medicine, 2020
The premature infant is to some extent protected from hypoxia, however defense against hyperoxia is poorly developed. The optimal assessment of oxygenation is to measure oxygen delivery and extraction. At the bedside PaO2 and SpO2 are approximations of oxygenation at the tissue level.
Andresen, Jannicke Hanne   +1 more
openaire   +4 more sources

The ‘oxygen’ in oxygen minimum zones

open access: yesEnvironmental Microbiology, 2022
AbstractAerobic processes require oxygen, and anaerobic processes are typically hindered by it. In many places in the global ocean, oxygen is completely removed at mid‐water depths forming anoxic oxygen minimum zones (A‐OMZs). Within the oxygen gradients linking oxygenated waters with A‐OMZs, there is a transition from aerobic to anaerobic microbial ...
Canfield, Donald E., Kraft, Beate
openaire   +3 more sources

An oxygen-reducing biocathode with “oxygen tanks” [PDF]

open access: yesChemical Communications, 2020
Polytetrafluoroethylene submicro-rod, serving as “oxygen tanks” and binders, have been mixed into Os redox polymer-based bilirubin oxidase cathodes, leading to enhanced performance.
Xinxin Xiao   +2 more
openaire   +3 more sources

The oxygen trail: tissue oxygenation [PDF]

open access: yesBritish Medical Bulletin, 1999
Aerobic cellular respiration depends on the efficient supply of oxygen and substrate to the mitochondria. There is an oxygen cascade from the environment to the subcellular environment. Efficient oxygen delivery depends on the coordinated interaction between the respiratory and circulatory systems.
M Singer, A T Nathan
openaire   +3 more sources

Shining new light on mammalian diving physiology using wearable near-infrared spectroscopy [PDF]

open access: yes, 2019
Investigation of marine mammal dive-by-dive blood distribution and oxygenation has been limited by a lack of non-invasive technology for use in freely diving animals.
Balfour, Steve   +10 more
core   +2 more sources

Alkalinization during re-oxygenation prevents functional damage by hyperglycaemic hypoxia [PDF]

open access: yes, 1994
HYPERGLYCAEMIA impairs recovery from transient cerebral ischaemia: the importance of tissue acidification for this phenomenon has not been clarified in detail.
Euchner-Wamser, Ingrid   +3 more
core   +1 more source

The Role of rescue therapies in the treatment of severe ARDS [PDF]

open access: yes, 2018
ARDS is characterized by a non-cardiogenic pulmonary edema with bilateral chest radiograph opacities and hypoxemia refractory to oxygen therapy. It is a common cause of admission to the ICU due to hypoxemic respiratory failure requiring mechanical ...
Alessandri, F, Pugliese, F, Ranieri, M.
core   +1 more source

Three dimensional optical imaging of blood volume and oxygenation in the neonatal brain [PDF]

open access: yes, 2006
Optical methods provide a means of monitoring cerebral oxygenation in newborn infants at risk of brain injury. A 32-channel optical imaging system has been developed with the aim of reconstructing three-dimensional images of regional blood volume and ...
Arridge, SR   +8 more
core   +1 more source

Oxygen [PDF]

open access: yesBreathe, 2019
The September issue of Breathe focuses on medical oxygen http://bit.ly/2M83NLo.
openaire   +2 more sources

Constraining the rise of oxygen with oxygen isotopes [PDF]

open access: yesNature Communications, 2019
AbstractAfter permanent atmospheric oxygenation, anomalous sulfur isotope compositions were lost from sedimentary rocks, demonstrating that atmospheric chemistry ceded its control of Earth’s surficial sulfur cycle to weathering. However, mixed signals of anoxia and oxygenation in the sulfur isotope record between 2.5 to 2.3 billion years (Ga) ago ...
Pascal Philippot   +6 more
openaire   +8 more sources

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