Results 11 to 20 of about 422,984 (293)
Oxygen metabolism and oxygenation of the newborn [PDF]
Seminars 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
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The ‘oxygen’ in oxygen minimum zones
Environmental 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
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An oxygen-reducing biocathode with “oxygen tanks” [PDF]
Chemical 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
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Shining new light on mammalian diving physiology using wearable near-infrared spectroscopy [PDF]
, 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
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Constraining the rise of oxygen with oxygen isotopes [PDF]
Nature 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
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Three dimensional optical imaging of blood volume and oxygenation in the neonatal brain [PDF]
, 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
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The oxygen trail: tissue oxygenation [PDF]
British 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
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The Role of rescue therapies in the treatment of severe ARDS [PDF]
, 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.
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Triazole-Directed Pd-Catalyzed C(sp2)–H Oxygenation of Arenes and Alkenes [PDF]
, 2016 Selective Pd-catalyzed C(sp2)–H oxygenation of 4-substituted 1,2,3-triazoles is described. Unlike previous metal-catalyzed C–H functionalization events, which preferentially occur at the activated heterocyclic C–H bond, the regioselective oxygenation of ...
Aizpurua Iparraguirre, Jesús María +2 more
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Different patterns of cerebral and muscular tissue oxygenation 10 years after coarctation repair [PDF]
, 2019 The purpose of this study was to assess whether the lower exercise tolerance in children after coarctation repair is associated with alterations in peripheral tissue oxygenation during exercise.
Boone, Jan +9 more
core +2 more sources