Now showing items 1-10 of 15894
Oxygen Management During Alcoholic Fermentation
Oxygen additions are a common practice in winemaking, as oxygen has a positive effect in fermentative kinetics, biomass synthesis and improvement of color, structure and :flavor in treated wines. However, most oxygen ...
Development of Nanostructured Electrochemical Sensor Based on Polymer Film Nickel-Salen for Determination of Dissolved Oxygen
(Elsevier B.V., 2011-01-01)
An amperometric oxygen sensor based on a polymeric nickel-salen (salen = N,N '-ethylenebis(salicydeneiminato)) film coated platinum electrode was developed. The sensor was constructed by electropolymerization of nickel-salen ...
Oxygen consumption by the hermit crab, Clibanarius vittatus (Bosc, 1802) in declining oxygen tensions
(Elsevier B.V., 1983-12-01)
1. 1. Oxygen consumption and its relationship to stepwise declining oxygen tension were examined in the common striped hermit crab, Clibanarius vittatus. 2. 2. Weight-specific oxygen consumption varied with body weight ...
Reactive Oxygen Species Mediated Activation of a Dormant Singlet Oxygen Photosensitizer: From Autocatalytic Singlet Oxygen Amplification to Chemicontrolled Photodynamic Therapy
(American Chemical Society, 2016-01)
Here we show the design, preparation, and characterization of a dormant singlet oxygen (1O2) photosensitizer that is activated upon its reaction with reactive oxygen species (ROS), including 1O2 itself, in what constitutes ...
Declining oxygen in the global ocean and coastal waters
(American Association for the Advancement of Science, 2018)
Oxygen is fundamental to life. Not only is it essential for the survival of individual animals, but it regulates global cycles of major nutrients and carbon. The oxygen content of the open ocean and coastal waters has been ...
Is coronary sinus blood oxygen tension behavior determined by myocardial oxygen tension variation during cardiac reperfusion?
The relationship between coronary sinus blood oxygen tension (CSPO 2) and myocardial oxygen tension (MPO 2) variations during cardiac ischemia and reperfusion was studied in anesthetized open-chest dogs. Oxygen tension was ...
Global warming projection of the change in dissolved oxygen concentrations in low oxygen regions of the oceans
(Universidad de Concepción.Facultad de Ciencias Naturales y Oceanográficas., 2006)
Spin effects in oxygen electrocatalysis: a discussion
(Elsevier Science, 2013-04)
The reduction of molecular oxygen in triplet and singlet spin states at metal electrodes is analyzed in the framework of quantum mechanical theory of charge transfer. Both outer- and inner-sphere mechanism is considered. ...
Influência do número kappa, dos ácidos hexenurônicos e da lignina no desempenho da deslignificação com oxigênio
This study aimed at determining the effect of kappa number, lignin and hexenuronic acid contents on oxygen stage performance. Industrial brown pulps produced by the ITC and KobudoMARI cooking technologies, of kappa number ...