Search results for "UCC+i"

Dimethylsulfoxide as carrier in enzyme cytochemistry.

1971

Addition of dimethylsulfoxide (DMSO) to the incubation medium of succinate dehydrogenase in a concentration of 10% enhances the staining reaction in the hyphae of the fungus Cercosporella herpotrichoides after an incubation period of 15 min. Controls without DMSO remain unstained. DMSO causes a rapid penetration of the components of the medium through the mucilage that covers the hyphae.

Antioxidative succinobucol–sterol conjugates: Crystal structures and pseudosymmetry in the crystals

2012

Abstract An extensive study to attach succinobucol to sterols has provided conjugates which comprise two pharmaceutically important compounds into one entity where the components are expected to have a synergistic effect. The motivation to design these novel conjugates was the need to broaden the armamentarium of current agents used in the treatment of atherosclerotic diseases and type 2 diabetes. In desire for detailed information of these compounds in solid state, which also have an influence to their physiological activity, systematic crystallization experiments were performed and as a result, X-ray quality single crystals were obtained from four succinobucol–sterol conjugates. All of th…

Spectrophotometric Determination of the Antihistamines, Carbinoxamine Maleate and Doxylamine Succinate, in anN-Cetylpyridinium Chloride Micellar Medi…

1996

Abstract The pyridine antihistamines carbinoxamine maleate and doxylamine succinate were derivatized by hydrolysis with cyanogen bromide and coupling with aniline to form a polymethine dye, and determined by colorimetry. In a micellar cationic medium of N-cetylpyridinium chloride (NCPC), the reaction times were reduced and the sensitivities improved. In 0.1 M NCPC the apparent molar absorptivities of the derivatives were 5,900 and 3,500 M−1 cm−1, and the limits of detection (as 3s) were 8.6x10−7 M and 1.7x106 M, for carbinoxamine and doxylamine, respectively. The sensitivity was enhanced in a three- to six-fold factor with respect to a non-micellar medium. The reproducibility was 0.8% for 1…

Un europeísta en acción

2008

La sostenibilidad, un nuevo pensamiento. Intervención de José Vidal-Beneyto

2003

Número monográfico sobre "El nuevo horizonte de la Sostenibilidad". Fundación Santander Central Hispano.

Anthropology of misery: poverty and the media

2010

El presente trabajo explora las conexiones entre la prensa argentina y el sismo que azotó a Haití a principios de 2010. En él se cuestiona la idea de según la cual la pobreza es, per se, un potenciador de las consecuencias del desastre. También se quiere, con él, brindar al lector un modelo claro de cómo comprender la conducta humana en momentos de emergencia social y cómo los medios gráficos de prensa, en tanto que parte de la sociedad, construyen una respuesta a la pregunta que todos nos hacemos en este tipo de situaciones: ¿qué ha pasado, y por qué a nosotros? The present work explores the connections between the Argentinean press and the ear - thquake that struck Haiti in early 2010. It…

La imposible mirada

1985

Quizá sea Vértigo el film más fascinante de Alfred Hitchcock. Fascinante, por la seducción de las imágenes que relatan la historia de una fascinación. Y, puesto que de ello se trata, su eje vertebrador será, como tantas y tantas veces en el perverso puritano, el ojo. Frontera entre el vacío que constituye al sujeto y el exterior hacia el cual se proyecta, el ojo es en Hitchcock una especie de «No trespassing» tras el cual es peligroso indagar, pero continuamente vulnerado. Por ello, es al ojo inyectado en sangre adonde se dirige la cámara mientras suena el tema «nacimiento» al comienzo del film y es de su interior de donde surgen dos rótulos -Vértigo y Alfred Hitchcock-. Punto de convergenc…

Esa ruda flor de cactus

1994

This article deals with two perplexing questions that arise from the viewing of The Man Who Shot Liberty Valance (John Ford, 1962): the use of flashback and the presence of nostalgia, an emotion foreign to epic poetry. 7he first points to the existence of a mythical past estranged from the present,from which civilization arises and which is symbolized by the train which makes its appearance at the beginning and the end of the film. Nostalgia introduces a painful note in the present-day characters which may be defined both as old-age in a physical sense and the fact that they belong to another, legendary world. We show how these two elements converge in the splendid metaphor of the cactus fl…

The relationship between Gösta Mittag Leffler and Giovan Battista Guccia

2016

E' descritto il rapporto tra G. B. Guccia, fondatore del Circolo Matematico di Palermo e G. Mittag Leffler fondatore degli Acta Mathematica. La descrizione è fatta anche attraverso le lettere che i due si scambiarono.

Effects of succinylation on thermal induced amyloid formation in Concanavalin A.

2007

We have recently shown that upon slight thermal destabilization the legume lectin Concanavalin A may undergo two different aggregation processes, leading, respectively, to amyloid fibrils at high pH and amorphous aggregates at low pH. Here we present an experimental study on the amyloid aggregation of Succinyl Concanavalin A, which is a dimeric active variant of Concanavalin. The results show that, as for the native protein, the fibrillation process appears to be favoured by alkaline pH, far from the isoelectric point of the protein. Moreover, it strongly depends on temperature and requires large conformational changes both at secondary and tertiary structure level. With respect to the nati…