Avaliação da atividade antioxidante do ácido fítico de germe de milho

The obtained corn germ phytic acid (CGPA) antioxidant potential was evaluated through the deoxyribose, bathophenanthroline (BPS) and DPPH• assays. In the concentration of 130.5 μM of CGPA the hydroxyl radical maximum sequestering antioxidant activity was 29.3% while standard phytic acid (SPA) presented this maximum activity of 18.2% in the concentration of 33.2 μM of SPA. The BPS assays revealed that the chelation activity towards Fe2+ increased concurrently with the increase of CGPA concentration and its Fe2+ contact time. Finally, DPPH• assay showed that CGPA and SPA did not present electron-donating capacity to DPPH•.

The passion of the Christ : 12 tuntia, jotka muuttivat maailman

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Niskalaukauksesta saa puhua : joukkoteloituksen muistot valkokankaalle

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Reações ácido-base: conceito, representação e generalização a partir das energias envolvidas nas transformações

Undergraduate students on the first year of Chemistry Courses are unfamiliar with the representation of acid-base reactions using the ionic equation H+ + OH- → H2O. A chemistry class was proposed about acid-base reactions using theory and experimental evaluation of neutralization heat to discuss the energy involved when water is formed from H+ and OH- ions. The experiment is suggested using different strong acids and strong base pairs. The presentation of the theme within a chemistry class for high school teachers increased the number of individuals that saw the acid-base reaction from this perspective.

Varastettu museo, varastettu perinne : : kysymyksiä kulttuuriperinnön suojaamisesta Melanesiassa

Artikkeliin liittyvä elokuva: http://www.elore.fi/arkisto/1_09/kupiainen.mov.

Propriedades estruturais e eletrônicas de nanofilmes de TiO2 anatase: cálculos B3LYP-D* em sistemas periódicos bidimensionais

Structural and electronic properties of titanium dioxide (TiO2) thin films, in anatase phase, were investigated using periodic 2D calculations at density functional theory (DFT) level with B3LYP hybrid functional. The Grimme dispersion correction (DFT/B3LYP-D*) was included to better reproduce structural features. The electronic properties were discussed based on the band gap energy, and proved dependent on surface termination. Surface energies ranged from 0.80 to 2.07 J/m², with the stability orders: (101) > (100) > (112) > (110) ~ (103) > (001) >> (111), and crystal shape by Wulff construction in accordance with experimental data.

Lestadiolaisuuden ja Norjan valtiokirkon kädenvääntö valkokankaalla

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Uusi vaihe paavi-elokuvien sarjassa

Kirjallisuusarvostelu

Harras katolilainen huippuvakoojana

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Pius XII:n pyhimystietä tasoittamassa

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Vatikaanin II konsiili kuvin ja sanoin [Elektroninen aineisto]

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Hyväksikäyttöä Irlannin katolisuudessa [Elektroninen aineisto]

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Amerikan katolisuuden pedofiliaskandaali [Elektroninen aineisto]

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