Now showing items 31-40 of 31165
Cytoprotective and suicidal signaling in oxidative stress
(Society of Biology of Chile, 2010)
Oxidative stress is an imbalance between pro-oxidants and antioxidants in favor of the pro-oxidants, leading to different responses depending on the level of pro-oxidants achieved and the duration of exposure. In this ...
Novel solid-state route to nanostructured tin, zinc and cerium oxides as potential materials for sensors
(American Scientific Publishers, 2014)
© 2014 American Scientific Publishers.Solid-state sensor nanostructured materials (SnO2, ZnO and CeO2) have been prepared by pyrolysis of macromolecular complexes: PSP-co-4-PVP · (SnCl2)n, PSP-co-4-PVP · (ZnCl2)nand ...
Alloys and oxides on carbon-supported Pt-Sn electrocatalysts for ethanol oxidation
(Elsevier B.V., 2010-06-01)
This work reports studies of ethanol oxidation on Pt-Sn/C catalysts with nearly the same particle size and identical overall composition having different amounts of oxide and alloyed phases. Results of characterization of ...
Characterization of the colloidal products of pentacarbonyliron oxidation
Pentacarbonyliron was oxidized with H2O2, in organic solvents, to give colloidal sols. The aqueous-ethanolic sol is highly stable and undergoes thermally-reversible coagulation. Its solid phase was found to be a non-crystalline ...
Nitric oxide and carotid body chemoreception
(Sociedad de Biología de Chile, 2001)
Quantitative Determination of the Number of Surface Active Sites and the Turnover Frequencies for Methanol Oxidation over Metal Oxide Catalysts: Application to Bulk Metal Molybdates and Pure Metal Oxide Catalysts
(Academic Press Inc Elsevier Science, 2001-09-23)
The present work investigates the number and nature of the surface active sites and the catalytic activity of bulk metal molybdates and bulk metal oxides on methanol selective oxidation. Bulk metal molybdates were synthesized ...
Heterocyclic N-oxides -A promising class of agents against tuberculosis, malaria and neglected tropical diseases
Heterocyclic N-oxides have emerged as promising agents against a number of diseases and disorders, especially infectious diseases. This review analyzes the emergence and development of this scaffold in the medicinal ...
Oxidation of chalcopyrite by Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans in shake flasks
(Elsevier B.V., 2002-12-02)
Chalcopyrite oxidation was evaluated with two acidophilic thiobacilli that are important in bioleaching processes. Acidithiobacillus thiooxidans in pure culture did not oxidize CuFeS2 but oxidized externally added S in the ...
Chemical evolution in the Asteraceae. The Oxidation-Reduction mechanism and production of secondary metabolites
(Natural Products Inc, 2006-01-01)
This work describes the application of partial least squares (PLS) regression to variables that represent the oxidation data of several types of secondary metabolite isolated from the family Asteraceae. The oxidation states ...