Browsing by Title Artículos de revistas
Now showing items 2039-2058 of 2801
-
(2003)Detection of singlet molecular oxygen, O2(1Δ g), by phosphorescence emission, λ = 1270 nm, following laser excitation was employed to measure the quantum yield of O2( 1δg) generation by the antimalaric drugs quinine, ...
-
(Elsevier Inc, 2008-06)Time-averaged conformations of ( )-1-[3,4-(methylenedioxy)phenyl]-2-methylaminopropane hydrochloride (MDMA, ‘‘ecstasy’’) in D2O, and of its free base and trifluoroacetate in CDCl3, were deduced from their 1H NMR spectra ...
-
(1991)A model for catecholamine storage in vesicles is analyzed within the SCRF‐CNDO/2 approach including continuum solvent effects. The model considers the approach of cationic norepinephrine (NE) to a positively charged ...
-
(1985)We have analyzed the dependence of the serotonin receptor binding affinity on the electronic and steric reactivity indexes for a group of 5‐substituted tryptamines. The approaches employed are a new nonempirical Quantitative ...
-
(ELSEVIER, 2011-01-01)We report for the first time the use of quaternized chitosan (QCHI) for the immobilization of gold nanopartides (NP) and glucose oxidase (GOD), the characterization of the resulting platform and its biocatalytic activity ...
-
(Cêntre d'Etude des Plantes Médicinales, 1987)Six flavonoids have been isolated from the stems, leaves and flowers of Centaurea floccosa Hook. et Arn.: hispidulin, eriodictyol, taxifolin, kaempterol, quercetin and chrysoeriol. They were identified by comparison of ...
-
(1985)Abstract— The quenching rate of triplet benzophenone in water and/or water mixtures has been determined employing vitamin C, vitamin E, cystine, cysteine, reduced and oxidized glutathione, methionine and DL‐penicillamine. ...
-
(2013)Quinoa protein extracts (Q) were prepared and alkalised at pH 8 and 12 (Q-8 and Q-12). Qs were mixed with chitosan (CH) to form Q/CH mixtures. The optimal proportion of the mixtures was determined by the formation of ...
-
(Elsevier, 2013)Quinoa protein extracts (Q) were prepared and alkalised at pH 8 and 12 (Q-8 and Q-12). Qs were mixed with chitosan (CH) to form Q/CH mixtures. The optimal proportion of the mixtures was determined by the formation of ...
-
(Sociedad Chilena de Tecnología de Alimentos, 1985)Se formuló y desarrolló un guiso preparado (garbanzos con carne) en ración individual y destinado a una institución estatal. Se prepararon diferentes formulaciones de guisos que cumplían teóricamente las especificaciones ...
-
(Elsevier, 2016)Quinoxaline-2-one derivatives have been proposed as potential drugs in treatments of various diseases since some of them showed a variety of pharmacological properties. The kinetics and spectral characteristics of the ...
-
(Amer Chemical SOC, 2018)The absorption-spectral and kinetic behaviors of radical ions and neutral hydrogenated radicals of seven 3-styryl-quinoxalin-2(1 H)-one (3-SQ) derivatives, one without substituents in the styryl moiety, four others with ...
-
(1973)The radioprotective ability of L-tryptophan, tryptamine, 3-indoleacetic and indole (10−4 m), on UV and gamma irradiated DNA (10−4 m) is studied. UV radioprotection is accomplished in the following order of efficiency: ...
-
(2005)Hydrolytic and oxidative rancidity development and its effect on quality loss were studied in frozen mackerel (Scomber scombrus) by biochemical and sensory indices. The effect of the lipid content on fish damage at a ...
-
(WILEY-V C H VERLAG GMBH, 2005-06)Coho salmon (Oncorhynchus kisutch) is a fatty fish species whose farming production has greatly increased in recent years. Lipid damage produced during Coho salmon chilled storage was studied for up to 24 d. Lipid hydrolysis ...
-
(2009)A commercial diet including synthetic antioxidants (BHT-ethoxyquin mixture) (diet I) was provided to coho salmon (Oncorhynchus kisutch) in parallel with two diets including natural antioxidants (tocopherol isomers rich ...
-
(Elsevier, 2016)Tuberous sclerosis complex (TSC) disease results from inactivation of the TSC1 or TSC2 gene, and is characterized by benign tumors in several organs. Because TSC tumorigenesis correlates with hyperactivation of mTORC1, ...
-
(2012)A high-performance liquid chromatography (HPLC) method for the determination of urocanic acid isomers extracted from human skin has been developed. Urocanic acid is a compound present in skin, accumulated in trans form ...
-
(SPRINGER-VERLAG, 2001-05)In all cell types, the maintenance of normal cell volume is an essential homeostatic function. Relatively little is known about the induction of apoptosis by hyperosmotic stress and its molecular mechanism in terminally ...