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CuO and CuO-ZnO catalysts supported on CeO(2) and CeO(2)-LaO(3) for low temperature water-gas shift reaction
(ELSEVIER SCIENCE BV, 2010)
This paper describes an investigation on CuO and CuO-ZnO catalysts supported on CeO(2) and CeO(2)-La(2)O(3) oxides, which were designed for the low temperature water-gas shift reaction (WGSR). Bulk catalysts were prepared ...
High temperature cyclic oxidation behavior of a low manganese Fe12Mn9Cr5Si4Ni-NbC shape memory stainless steels
(2021-03-15)
High amounts of Mn in Fe-Mn-Si-Cr-Ni shape memory stainless steels are detrimental for oxidation resistance at high temperatures. However, in order to maintain the shape memory effect of these alloys the content of manganese ...
Biodiesel obtained by ethylic transesterification using CuO, ZnO and CeO<inf>2</inf> supported on bentonite
(2015-08-13)
Abstract This research aims to study the feasibility of using bentonite clays in their natural form, acidified and impregnated with CuO, ZnO and CeO<inf>2</inf> by a microwave-assisted solvothermal method, for use in the ...
Inducible nitric oxide synthase polymorphisms and nitric oxide levels in individuals with chronic periodontitis
(2017-06-15)
This study aimed to investigate whether the –1026(A>C)(rs2779249) and +2087(A>G)(2297518) polymorphisms in the NOS2gene were associated with chronic periodontitis (CP) and with salivary levels of nitrite (NO2–) and/or ...
Isothermal short-term oxidation behavior of MAR-M246 nickel-based superalloy at 800°C and 1000°C
(2022-01-01)
Superalloys are widely employed at high temperatures for structural applications. Hence, knowledge about the oxidation of these materials is essential. However, the literature is scanty when it comes to some families of ...
Biologically enhanced dissolution of a pyrite-rich black shale concentrate
(1997-01-01)
The acid leaching of a pyrite-rich black shale concentrate (7% S) was tested in this study. The experiments were performed at 5-30% pulp densities and with inoculations of Fe- and S-oxidizing thiobacilli (Thiobacillus ...
CARNOSINE AVOIDS THE OXIDATIVE DAMAGE CAUSED BY INTENSE EXERCISE ON RAT SOLEUS MUSCLE
(Soc Brasileira Med Esporte, 2020-01-01)
Introduction: Intense physical exercise affects the balance between the production of reactive oxygen species and antioxidant defense in the muscle. Carnosine is a cytoplasmic dipeptide composed of the amino acids beta-alanine ...
Occupational hazards, DNA damage, and oxidative stress on exposure to waste anesthetic gases
(Elsevier B.V., 2018-01-01)
Background and objectives: The waste anesthetic gases (WAGs) present in the ambient air of operating rooms (OR), are associated with various occupational hazards. This paper intends to discuss occupational exposure to WAGs ...
Herbal extracts differentially inhibit oxidative effects caused by the biotransformation of nifurtimox, nitrofurantoin and acetaminophen on rat liver microsomes
(Universidad de Santiago de Chile, 2017)
Inflammation is a cellular defensive mechanism associated to oxidative stress. The administration of nitrofurantoin, nifurtimox and acetaminophen generates oxidative stress by their biotransformation through CYP450 system. ...
Antimicrobial endodontic compounds do not modulate alkylation-induced genotoxicity and oxidative stress in vitro
(2006-08-01)
Objective: To investigate if formocresol, paramonochlorophenol, or calcium hydroxide modulate the genotoxic effects induced by the oxidatively damaging agent hydrogen peroxide (H 2O 2) or the alkylating agent methyl ...