Results 51 to 60 of about 243,299 (222)
Late-Stage Oxygenation towards the Preparation of Metabolites of Agrochemical Active Ingredients
Medical Sciences Forum, 2022 The development of plant protection products requires the safety profile analysis of active ingredients (AIs). This includes the toxicity determination of AI metabolites.
Duarte B. Clemente +2 more
doaj +1 more source
Characterization of oxygen defects in diamond by means of density functional theory calculations [PDF]
Phys. Rev. B 94, 125202 (2016), 2016 Point defects in diamond are of high interest as candidates for realizing solid state quantum bits, bioimaging agents, or ultrasensitive electric or magnetic field sensors. Various artificial diamond synthesis methods should introduce oxygen contamination in diamond, however, the incorporation of oxygen into diamond crystal and the nature of oxygen ...
arxiv +1 more source
Current Directions in Biomedical Engineering, 2015 The oxygenation, perfusion and metabolism of the brain - segmented in both hemispheres - can be estimated from the oxygenation and hemoglobin levels of the venous blood in the cerebral efferent vessels.
Rackebrandt K., Gehring H.
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Strain Control of Oxygen Vacancies in Epitaxial Strontium Cobaltite Films [PDF]
, 2016 The ability to manipulate oxygen anion defects rather than metal cations in complex oxides can facilitate creating new functionalities critical for emerging energy and device technologies. However, the difficulty in activating oxygen at reduced temperatures hinders the deliberate control of important defects, oxygen vacancies. Here, strontium cobaltite
arxiv +1 more source
Oxygen release and oxygen redox [PDF]
Nature Energy, 2018 Voltage fade has been a major barrier to the commercialization of a series of high-energy-density battery electrodes for more than a decade. It is now re-examined with advanced characterization techniques, which find its origin is correlated to oxygen activities.
openaire +3 more sources
Frontiers in Physiology, 2018 The need for radiotherapy personalization is now widely recognized, however, it would require considerations not only on the probability of control and survival of the tumor, but also on the possible toxic effects, on the quality of the expected life and
Antonella Belfatto +4 more
doaj +1 more source
Oxygen trends in the Galactic thin and thick disks [PDF]
Astron.Astrophys. 415 (2004) 155, 2003 We present oxygen abundances for 72 F and G dwarf stars in the solar neighbourhood. Using the kinematics of the stars we divide them into two sub-samples with space velocities that are typical for the thick and thin disks, respectively. The metallicities of the stars range from [Fe/H] = -0.9 to +0.4 and we use the derived oxygen abundances of the stars
arxiv +1 more source
Base metal-catalyzed benzylic oxidation of (aryl)(heteroaryl)methanes with molecular oxygen
Beilstein Journal of Organic Chemistry, 2016 The methylene group of various substituted 2- and 4-benzylpyridines, benzyldiazines and benzyl(iso)quinolines was successfully oxidized to the corresponding benzylic ketones using a copper or iron catalyst and molecular oxygen as the stoichiometric ...
Hans Sterckx +5 more
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Physical properties and band structure of reactive molecular beam epitaxy grown oxygen engineered HfO$_{2\pm x}$ [PDF]
, 2012 We have conducted a detailed thin film growth structure of oxygen engineered monoclinic HfO$_{2\pm x}$ grown by reactive molecular beam epitaxy (MBE). The oxidation conditions induce a switching between ($\bar{1}11$) and (002) texture of hafnium oxide. The band gap of oxygen deficient hafnia decreases with increasing amount of oxygen vacancies by more ...
arxiv +1 more source
ABC of oxygen: Diving and oxygen [PDF]
BMJ, 1998 All organisms require oxygen for metabolism, but the oxygen in water is unavailable to mammals. Divers (and diving mammals such as whales and seals) are entirely dependent on the oxygen carried in the air in their lungs or their gas supply. Divers also have a paradoxical problem with oxygen.
openaire +3 more sources