Nuclear Energy
Mostrando 13-24 de 576 artigos, teses e dissertações.
-
13. Effect of cis-9, trans-11 Conjugated Linoleic Acid (CLA) on the Metabolism Profile of Breast Cancer Cells Determined by H HR-MAS NMR Spectroscopy
Conjugated linoleic acid (CLA), a fatty acid found in ruminant food products, has been associated with anticarcinogenic activity. However, its effect on cancer metabolism is unclear. In this paper we evaluated the effects of cis-9, trans-11 CLA on the metabolic profile of MCF-7 and MDA-MB-231 breast cancer cells using high-resolution magic angle spinning (HR
J. Braz. Chem. Soc.. Publicado em: 2019-01
-
14. Propiedades de superficies de Zr hexagonal y ZrO2 tetragonal de bajo índice a partir de cálculos DFT
ABSTRACT The use of nuclear reactor as a source of electric energy has been extended and consolidated during the second half of last century and the beginnings of XXI century. The continuity of this resource relies on the reliability and security of nuclear plants, requiring the improvement of all features related to their operation. Among them, the structur
Matéria (Rio J.). Publicado em: 19/07/2018
-
15. Monitoring reinforcement corrosion of concretes designed for nuclear facilitie
ABSTRACT The facilities designed for the peaceful activities of nuclear energy are made with different materials, among them, reinforced concrete. This material, in addition to being structural, is a barrier for isolation and confinement from the environment of the radioactive materials. One of its degradation mechanisms is the corrosion of the reinforcement
Matéria (Rio J.). Publicado em: 19/07/2018
-
16. Desdoblamiento de la transformación martensítica en un acero F82H de activación neutrónica reducida
ABSTRACT One of the most promising solutions to global energy supply is nuclear fusion. This process, which is implemented in nuclear fusion reactors (from which one of the first designs was the Tokamak), involves deuterium-tritium plasmas at very high temperature, confined in vacuum chambers of toroidal shape under the influence of strong magnetic fields. T
Matéria (Rio J.). Publicado em: 19/07/2018
-
17. Performance of the 13C-urea breath test for the diagnosis of H. pylori infection using a substrate synthesized in Brazil: A preliminary study
OBJECTIVE: The 13C-urea breath test is the main non-invasive test for the diagnosis of Helicobacter pylori infection. The availability of this test throughout the country is limited, mainly due to the difficulty in obtaining the labeled isotope from abroad. Recently, researchers from the Nuclear Energy Center in Agriculture at the University of São Paulo (
Clinics. Publicado em: 07/06/2018
-
18. Heteropoly Tungstate Supported on Metal Oxide Catalysts for Liquid Phase Oxidation of Benzyl Alcohol with Hydrogen Peroxide
A series of metal oxide supported tungstophosphoric acid catalysts were prepared by impregnation. The physicochemical and acidic properties of these materials were characterized by a variety of different analytical and spectroscopic techniques, namely Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) method
J. Braz. Chem. Soc.. Publicado em: 2018-01
-
19. Metabolic analysis of the effect of rheum on a taurocholate-induced acute pancreatitis rat model
ABSTRACT The effects of rheum on serum parameters in a taurocholate-induced acute pancreatitis (AP) rat model were investigated using pathological and biochemical tests, and a proton nuclear magnetic resonance (1H NMR)-based metabonomic strategy. Healthy rats and rats with AP were either treated with rheum (7.5% at a dose of 1.5 g/kg) or left untreated. Seru
Braz. J. Pharm. Sci.. Publicado em: 19/10/2017
-
20. Effect of pre-emulsified sesame oil on physical-chemical and rheological properties of pork batters
Abstract Physical-chemical and rheological properties of pork batters as affected by replacing pork back-fat with pre-emulsified sesame oil were investigated. Replacement of pork back-fat with pre-emulsified sesame oil, improved L* value, moisture and protein content, hardness, cohesiveness, and chewiness, declined a* value, fat content and energy, but not a
Food Sci. Technol. Publicado em: 20/07/2017
-
21. Creep Parameters and Dislocation Substructure in AISI 316 Austenitic Stainless Steel From 600ºC to 800ºC
Stainless steels are well known by their corrosion resistance. The austenitic types, in particular, are also applied as structural components in engineering systems operating at high temperatures such as nuclear reactors, petrochemical furnaces and turbines. For these applications operational temperatures may go up to 800ºC. Under constant load applications
Mat. Res.. Publicado em: 06/07/2017
-
22. Mitochondria-rich cells changes induced by nitrite exposure in tambaqui (Colossoma macropomum Cuvier, 1818)
ABSTRACT The gill mitochondria-rich cells of the juvenile Amazonian fish Colossoma macropomum were analyzed using light and scanning and transmission electron microscopy after 96 h exposure to 0.04 and 0.2 mM nitrite. Although the number of mitochondria-rich cells decreased significantly in the lamellar epithelium, no decrease was found in the interlamellar
An. Acad. Bras. Ciênc.. Publicado em: 15/05/2017
-
23. Managing Security in a Zone of Peace: Brazil´s Soft Approach to Regional Governance
Abstract Given Brazil’s regional prevalence, its low, late and soft investment in regional security governance appears puzzling. We approach the puzzle through an analysis of contextual features, institutional overlap and policy networks, especially regarding nuclear energy and the environment. Our findings show that Brazil’s behavior is explained by a c
Rev. bras. polít. int.. Publicado em: 27/04/2017
-
24. Design of a New Molecularly Imprinted Polymer Selective for Hydrochlorothiazide Based on Theoretical Predictions Using Gibbs Free Energy
A molecularly imprinted polymer (MIP) for the diuretic drug hydrochlorothiazide (HCTZ) based on theoretical predictions was developed. Molecular modeling calculations were performed to study the intermolecular interactions in the pre-polymerization mixture and to select a suitable functional monomer and a porogenic solvent for the synthesis of the MIP. To co
J. Braz. Chem. Soc.. Publicado em: 2016-12