Search results for "Oct"
showing 10 items of 3052 documents
Copper(II) and nickel(II) chelates with dihydrogen Trans-1,2-diaminocyclohexane-N,N,N′,N′-tetraacetate(2−) ion (H2CDTA2−). Synthesis, XRD structure a…
1996
Abstract Stoichiometric reactions of metal hydroxycarbonates with the acid trans -1,2-cyclohexanediaminotetraacetic acid (H 4 CDTA) in water under reduced pressure yielded [Cu(H 2 CDTA)]·H 2 O ( I ) and [Ni(H 2 CDTA) (H 2 O)]·4H 2 O ( II ). Both compounds were characterized by TG-DTA analysis, spectral properties (IR, reflectance and RSE) and X-ray diffraction. In I the copper(II) atom exhibits a distorted square-base coordination (type 4+1) by chelation of one H 2 CDTA 2− ligand through two N and two O (carboxylate) at the square base and one O (carboxylic) at the apex of the coordination polyhedron; a second carboxymethyl group of H 2 CDTA 2− remains free. In II the H 2 CDTA 2− chelating …
Autumnal shift from diurnal to nocturnal peaking feeding activity ofRutilus rutilusin boreal lake littoral zones
2008
The possibility that the feeding activity of roach Rutilus rutilus shows an autumnal shift towards hours of lower light intensity in shallow and illuminated habitats in temperate watercourses as a consequence of relatively increasing daytime predation risk was tested in a littoral zone of a large boreal lake using trapping experiments. Autumnal feeding activity of R. rutilus first showed a striking shift from day to twilight when water temperature fell from 20 to 10° C, and a low but steady night activity prevailed in late autumn, when temperature had fallen to 5° C and the length of the night had increased. The size of the captured littoral R. rutilus also increased throughout the autumn. …
A propósito de las fuentes gramaticales francesas en la Gramática general española de J. Gómez Hermosilla (Madrid, 1841)
2011
Resumen En este artículo nuestra finalidad ha sido evaluar, desde el punto de vista de la doctrina gramatical, los Principios de Gramática General (1841 [1835]) de José Mamerto Gómez Hermosilla (1771–1837), calibrar las aportaciones de sus fuentes francesas – Beauzée, Condillac y Destutt de Tracy – y describir cómo se utilizaron éstas. El método para tal fin ha consistido en contrastar de forma precisa la macroorganización, así como la teoría sobre el sustantivo, en las obras francesas mencionadas y en la española. Nuestro propósito era un mejor conocimiento de la recepción y de la adaptación en España de lo que se puede llamar genéricamente Gramática general. El estudio nos ha permitido de…
Function and Sacrality of Philoctetes' Bow
2019
El arco de Filoctetes, como objeto simbólico importante y sagrado de la tragedia homónima de Sófocles, ha sido estudiado en numerosas ocasiones. A pesar de ello, su importancia como arma sagrada merece una revisión que atienda a los contextos religioso y épico de los que bebió Sófocles. Según la teoría tradicional, esta sacralidad deriva de la proveniencia divina del arco, que procede de Heracles. Con todo, en algunos pasajes podría explicarse mejor por la importancia que, en determinados contextos religiosos, adquirían ciertos objetos venerables que eran considerados también sagrados.
Análisis de necesidades documentales y terminológicas de médicos y traductores médicos como base para el diseño de un diccionario multilingüe de nuev…
2014
En el presente trabajo se plantea el diseño de un recurso lexicográfico multilingüe orientado a médicos y traductores médicos. En la actualidad, no existe ningún recurso que satisfaga a ambos colectivos por igual, debido a que estos poseen necesidades muy diferentes. Sin embargo, partimos de la premisa de que se podría crear una herramienta única, modular, adaptable y flexible, que responda a sus diversas expectativas, necesidades y preferencias. Se parte para ello de un análisis de necesidades siguiendo el método empírico de recogida de datos en línea mediante una encuesta trilingüe.
Els fonaments de la ironia caldersiana: «La Glòria del doctor Larén»
2016
Resum: L’article passa revista a les diferents modalitats de la ironia que són presents a La Glòria del doctor Larén (1936), la primera novel·la de Pere Calders: les reflexions metaficcionals a càrrec dels narradors i dels personatges i altres recursos irònics a l’abast del narrador en l’exercici de les seues funcions, la ironia de l’autor en el prefaci, les ironies de situació, les ironies verbals i les paròdies. L’anàlisi mostra, a través de la diversitat i la recurrència de les ironies que hi apareixen, que La Glòria del doctor Larén posa les bases de la ironia que identificarà la poètica de l’autor i ho fa amb el caràcter, les funcions i l’estil característics de la producció de l’etapa…
Lipoic acid lessens Th1-mediated inflammation in lipopolysaccharide-induced uveitis reducing selectively Th1 lymphocytes-related cytokines release
2013
AbstractInflammation results in the production of free radicals. We evaluated the anti-inflammatory and antioxidant capacity of lipoic acid in an experimental uveitis model upon a subcutaneous injection of endotoxin into Lewis rats. The role of oxidative stress in the endotoxin-induced uveitis model is well-known. Besides, the Th1 response classically performs a central part in the immunopathological process of experimental autoimmune uveitis. Exogenous sources of lipoic acid have been shown to exhibit antioxidant and anti-inflammatory properties. Our results show that lipoic acid treatment plays a preventive role in endotoxin-induced oxidative stress at 24 h post-administration and reduced…
Emergency sclerotherapy versus vasoactive drugs for variceal bleeding in cirrhosis
2003
Abstract Background & aims: Emergency sclerotherapy is used as a first-line therapy for variceal bleeding in cirrhosis, although pharmacologic treatment stops bleeding in most patients. We performed a meta-analysis comparing emergency sclerotherapy with pharmacologic treatment. Methods: MEDLINE (1968–2002), EMBASE (1986–2002), and the Cochrane Library (2002;4) were searched to retrieve randomized controlled trials comparing sclerotherapy with vasopressin (± nitroglycerin), terlipressin, somatostatin, or octreotide for variceal bleeding in cirrhosis. Outcome measures were failure to control bleeding, rebleeding, blood transfusions, adverse events, and mortality. Results: Fifteen trials were …
Octreotide compared with placebo in a treatment strategy for early rebleeding in cirrhosis. A double blind, randomized pragmatic trial.
1998
beta-Blockers and sclerotherapy prevent long-term upper digestive rebleeding in cirrhosis but they seem ineffective for early rebleeding. We compared octreotide with a placebo for the prevention of early rebleeding in cirrhotic patients. After control of acute upper digestive bleeding, 262 consecutive cirrhotic patients were randomized to octreotide 100 microgram subcutaneously three times a day for 15 days (n = 131) or to the placebo (n = 131), in a double blind pragmatic trial in which beta-blockers and/or sclerotherapy were allowed together with the experimental treatment. Separate randomization and analysis were performed according to whether patients were eligible for beta-blockers and…
Deletion of organic cation transporter Oct3 promotes hepatic fibrosis via upregulation of TGFβ
2019
Organic cation transporters (OCT) are responsible for the intracellular uptake and detoxification of a broad spectrum of endogenous and exogenous substrates. OCTs are downregulated in cholestasis, fibrosis, and hepatocellular carcinoma, but the underlying molecular mechanisms and downstream effects of OCT deletion are unknown. Oct3-knockout ( Oct3−/−; FVB.Slc22a3tm10pb) and wild-type (WT; FVB) mice were subject to escalating doses of carbon tetrachloride (CCl4) or thioacetamide (TAA) for 6 wk to induce advanced parenchymal liver fibrosis. Secondary biliary fibrosis was generated by bile duct ligation. Liver fibrosis was assessed by hydroxyproline determination, quantitative Sirius red morp…