Search results for "COLON"
showing 10 items of 2038 documents
Mito e storia nelle isole Eolie
1996
Si mettono a confronto le tradizioni rispettivamente di Antioco di Siracusa e di Diodoro Siculo sulla fondazione di Lipari ad opera dei Rodio Cnidi giunti in Sicilia all'epoca di Pentatlo. Si tratta di due filoni di tradizioni differenti, che tendono a mostrare un profilo differente dell'identità degli abitanti dell'arcipelago eoliano e dei loro rapporti nei confronti delle precedenti popolazioni. Il mito sulla più antica occupazione delle isole da parte degli Ausoni e sulla funzione regale svolta da Eolo e dai suoi figli è di antica matrice ionico-calcidese, e mira a sottolineare la continuità della "civilizzatrice" presenza greca in queste isole e nelle zone della Sicilia che furono gover…
Populations of breeding birds in Byers Peninsula, Livingston Island, South Shetland Islands
2013
Data about breeding populations of birds in the Antarctica are rare and fragmented. Thus, information about the status of the breeding populations of Antarctic birds is crucial given the current scenario of climate change, which is particularly acute in Antarctica. This paper presents new information about the populations of the Antarctic tern Sterna vittata, the kelp gull Larus dominicanus, the southern giant petrel Macronectes giganteus, the Antarctic skua Catharacta antarctica lonnbergi, the chinstrap penguin Pygoscelis antarctica and the gentoo penguin Pygoscelis papua on Byers Peninsula (Livingston Island, South Shetland Islands). We used line transects counts to estimate both densitie…
Revisiting the thiosemicarbazonecopper(II) reaction with glutathione. Activity against colorectal carcinoma cell lines.
2018
Thiosemicarbazones (TSCs), and their copper derivatives, have been extensively studied mainly due to the potential applications as antitumor compounds. A part of the biological activity of the TSC-CuII complexes rests on their reactivity against cell reductants, as glutathione (GSH). The present paper describes the structure of the [Cu(PTSC)(ONO2)]n compound (1) (HPTSC =pyridine-2-carbaldehyde thiosemicarbazone) and its spectroscopic and magnetic properties. ESI studies performed on the reaction of GSH with 1 and the analogous [{Cu (PTSC*)(ONO2)}2] derivative (2, HPTSC* =pyridine-2-carbaldehyde 4N-methylthiosemicarbazone) show the absence of peaks related with TSC-Cu-GSH species. However GS…
APHAMAX® ATTENUATES INFLAMMATORY AND OXIDATIVE STRESS IN 2, 4-DINITROBENZENE SULFONIC ACID-INDUCED COLITIS IN RAT AMELIORATING INTESTINAL FUNCTIONALI…
2021
Accumulating evidences indicate that inflammatory and oxidative stress play an essential role in the pathogenesis and progression of inflammatory bowel disease (IBD). In IBD the excessive production of reactive oxygen species (ROS) and nitrogen metabolites contribute to tissue injury and could have also a profound impact on gut functions, including motility. We characterised the inflammatory and oxidative condition and the impact on colon motility in an experimental rat model of colitis, the 2, 4-dinitrobenzene sulfonic acid (DNBS)- induced colitis, and we evaluated if oral treatment with a nat- ural extract of Aphanizomenon flos-aquae (AFA) AphaMax®, containing concentrated quantity of AFA…
Apuntes para una iconografía del milenio de Los Andes
1993
EN LA CORRIENTE MILENARISTA QUE, SEGUN ALGUNAS LINEAS HISTORIOGRAFICAS SE DIFUNDIO EN LA AMERICA COLONIAL DE LOS SIGLOS XVII Y XVIII SE INSCRIBIRIAN, QUIZAS, ALGUNAS PINTURAS RECIENTEMENTE RESTAURADAS. SE TRATA DE LA "LUCHA DE SAN MIGUEL Y LOS ANGELES CONTRA LAS HUESTES DEL DEMONIO", CONSERVADA EN EL CONVENTO DE SAN FRANCISCO DE LA CIUDAD DE CORDOBA (ARGENTINA) Y DE LA SERIE DE DOCE PATRIARCAS, REYES Y PROFETAS DE ISRAEL DE LA IGLESIA DE HUMAHUACA EN JUJUY (ARGENTINA) (ABC/LAG).
Influence of nitrogen and carbon sources on the production of ochratoxin A by ochratoxigenic strains of Aspergillus spp. isolated from grapes.
2008
This work studies the influence of nitrogen and carbon source on ochratoxin A production by three Aspergillus isolates A. ochraceus (Aso2), A. carbonarius (Ac25) and A. tubingensis (Bo66), all isolated from grapes. A basal medium (0.01 g/l FeSO4.7H2O, 0.5 g/l MgSO4.7H2O, 0.5 g/l Na2HPO4.2H2O, 1.0 g/l KCl) was prepared. This medium was supplemented with different nitrogen sources, both inorganic [(NH4)3PO(4), 0.3 g/l plus NH4NO3, 0.2 g/l] and organic (histidine, proline, arginine, phenylalanine, tryptophan or tyrosine) at two concentrations (0.05 g/l or 0.3 g/l), and different carbon sources (sucrose, glucose, maltose, arabinose or fructose) at three concentrations (10 g/l, 50 g/l or 150 g/l…
Identification of Bioactive Compounds in Polar and Nonpolar Extracts of Araujia sericifera
2017
Abstract Araujia sericifera is a native perennial, climbing laticiferous shrub from South America that is currently naturalized in many other countries. Previous data describe promising properties for A. sericifera, but no systematic study of its bioactive compounds and possible medicinal applications has been conducted to date. In the present study, aerial parts of A. sericifera (leaves, stems, and fruits) were explored by combining GC-MS and NMR spectroscopy analysis for both nonpolar (hexane) and polar (methanol) extracts. The hexanic extracts contained high amounts of pentacyclic triterpenes including two new metabolites, 3-tigloyl germanicol (18) and 3-tigloyl lupeol (19). The methanol…
The first colonization of Ibiza and Formentera (Balearic Islands, Spain): Some more islands out of the stream?
1995
Abstract The Balearic Islands, off the east coast of Spain, have provided a focus of interest in investigations of the earliest colonization of the Mediterranean islands, because of the relatively late date of their oldest sites. Mallorca was visited in the fifth millennium BC and inhabited by the third, and Menorca was colonized during the closing centuries of the third millennium; this therefore makes Ibiza and Formentera special cases of isolation, since they were evidently not occupied until about 2000 BC and moreover were essentially deserted between roughly the thirteenth and seventh centuries BC. The paper presents all the currently available data relevant to this question, particula…
Architettura mariano-morfica: L'esempio della Capilla del Pocito a Guadalupe
1994
EL ESQUEMA ARQUITECTONICO DE ALGUNAS IGLESIAS AMERICANAS ESTA INSPIRADO EN LA ICONOGRAFIA MARIANA. UN EJEMPLO DE ARQUITECTURA MARIANO-MORFICA ES LA CAPILLA DEL POCITO DE GUADALUPE, MEXICO. REALIZADA POR EL ARQUITECTO FRANCISCO GUERRERO Y TORRES ENTRE 1777 Y 1791, SIGUE MODELOS DE LA ANTIGUEDAD REELABORADOS POR SERLIO. LA RELACION DEL POCITO CON LA ICONOGRAFIA MARIANA HAY QUE VERLA TANTO POR SU UBICACION EN EL SANTUARIO MARIANO MAS IMPORTANTE DE AMERICA COMO POR SUS PROPIAS CARACTERISTICAS PLANICOVOLUMETRICAS. LA CAPILLA ES COMO UNA LETANIA LAURETANA PETRIFICADA, ANALOGA A LAS NUMEROSAS REPRESENTACIONES PICTORICAS DE LA INMACULADA CONCEPCION CIRCUNDADA POR SIMBOLOS LAURETANOS (ABC/LAG).