538 resultados para 1052


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La recepción del Quijote en Brasil está relacionada con sus traducciones, dos realizadas por portugueses y cuatro traducciones brasileñas, dos en el siglo XX y dos preparadas para el cuarto centenario del primer libro, celebrado en 2005. Se brinda un sucinto panorama historiográfico de esas publicaciones y breve biografía de sus respectivos traductores. En el capitulo XX del primer libro del Quijote, Sancho le cuenta un cuento popular al caballero, con la intención de hacerlo dormir y son utilizados varios juegos de palabras para dar vida a un 'cuento de nunca acabar', el cuento de la pastora Torralba. En esta comunicación son analizadas las seis traducciones al portugués, verificando la preservación o incremento de esos juegos de palabras, la traducción de los nombres de sus personajes (onomástica), como también la existencia e información de notas de traducción. Al final, se ofrecen cuadros de las comparaciones hechas, con algunas consideraciones sobre las opciones ofrecidas al lector brasileño interesado en disfrutar de la gran obra cervantina.

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Quantifying phosphorus (P) concentrations in marine sediments is necessary for constraining the oceanic record of phosphorus burial and helps to constrain P sedimentary geochemistry. To understand P geochemistry in the sediments, we must determine the geochemical forms of P as well as the transformations occurring between these P components with depth and age. Although several records now exist of P geochemistry in the western and eastern equatorial Pacific (Filippelli and Delaney, 1995, doi:10.2973/odp.proc.sr.138.144.1995; 1996, doi:10.1016/0016-7037(96)00042-7), the western equatorial Atlantic (Delaney and Anderson, 1997, doi:10.2973/odp.proc.sr.154.124.1997), the California Current (Delaney and Anderson, in press), and the Benguela Current (Anderson et al., 2001, doi:10.1029/2000GB001270), most of these are Neogene records. Relatively little data exist from sediments of the Paleogene or Cretaceous, time periods when carbon isotope records indicate major carbon shifts and when the nature of P geochemistry has not been well constrained. Samples from several sites at various water depths, oceanographic regions, and ages are needed to understand how P geochemistry and burial in sediments reflect ocean history. We determined P geochemistry and reactive P concentrations in Atlantic sediments of Eocene to Cretaceous age. These are the first records of P geochemistry with good age control from this period. Blake Nose sites are ideal for investigating P geochemistry, as the sediments are shallowly buried at a range of water depths and sedimentation rates. We determined P concentrations and geochemistry, along with calcium carbonate contents, in mid-Cretaceous to upper Eocene sediments drilled on Blake Nose (Ocean Drilling Program Leg 171B) in a depth transect of four sites (Sites 1052, 1051, 1050, and 1049; water depths: 1345, 1983, 2300, and 2656 m, respectively).

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Fil: De Marziani, Fabián Amilcar. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

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Tabla de contenidos: La conmemoración de la Revolución de Mayo. Prensa gráfica, historia y política, siglos XIX-XXI / Guillermo O. Quinteros. Recordando la Revolución. Prensa y política en los primeros años de La Gaceta Mercantil / María Elena Infesta, Paula Salguero. Los discursos conmemorativos de la Revolución de Mayo. El diario El Día, 1943-1952 / Guillermo O. Quinteros. La representación de la Revolución en el discurso publicitario. El Día, 1943-1976 / Fabio André Gutérres Ludwig, Guillermo O. Quinteros. Representaciones sobre la Revolución de Mayo en La Prensa y Clarín, 1973-1976 / Catalina Curciarello, Sandra Santilli. Las lecturas peronistas del kirchnerismo. El estudio de las repercusiones en la prensa del 25 de mayo de 2006 / Julia de Diego. El diario La Nación y la herencia perdida de la Revolución, 2008-2011 / Julián Fontana, Mauricio Schuttenberg.

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La recepción del Quijote en Brasil está relacionada con sus traducciones, dos realizadas por portugueses y cuatro traducciones brasileñas, dos en el siglo XX y dos preparadas para el cuarto centenario del primer libro, celebrado en 2005. Se brinda un sucinto panorama historiográfico de esas publicaciones y breve biografía de sus respectivos traductores. En el capitulo XX del primer libro del Quijote, Sancho le cuenta un cuento popular al caballero, con la intención de hacerlo dormir y son utilizados varios juegos de palabras para dar vida a un 'cuento de nunca acabar', el cuento de la pastora Torralba. En esta comunicación son analizadas las seis traducciones al portugués, verificando la preservación o incremento de esos juegos de palabras, la traducción de los nombres de sus personajes (onomástica), como también la existencia e información de notas de traducción. Al final, se ofrecen cuadros de las comparaciones hechas, con algunas consideraciones sobre las opciones ofrecidas al lector brasileño interesado en disfrutar de la gran obra cervantina.

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A late Albian-early Cenomanian record (~103.3 to 99.0 Ma), including organic-rich deposits and a d13C increase associated with oceanic anoxic event 1d (OAE 1d), is described from Ocean Drilling Program sites 1050 and 1052 in the subtropical Atlantic. Foraminifera are well preserved at these sites. Paleotemperatures estimated from benthic d18O values average ~14°C for middle bathyal Site 1050 and ~17°C for upper bathyal Site 1052, whereas surface temperatures are estimated to have ranged from 26°C to 31°C at both sites. Among planktonic foraminifera, there is a steady balance of speciation and extinction with no discrete time of major faunal turnover. OAE 1d is recognized on the basis of a 1.2 per mill d13C increase (~100.0-99.6 Ma), which is similar in age and magnitude to d13C excursions documented in the North Atlantic and western Tethys. Organic-rich "black shales" are present throughout the studied interval at both sites. However, deposition of individual black shale beds was not synchronous between sites, and most of the black shale was deposited before the OAE 1d d13C increase. A similar pattern is observed at the other sites where OAE 1d has been recognized indicating that the site(s) of excess organic carbon burial that could have caused the d13C increase has (have) yet to be found. Our findings add weight to the view that OAEs should be chemostratigraphically (d13C) rather than lithostratigraphically defined.

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Quantitative radiolarian assemblage analysis has been conducted on middle and upper Eocene sediments (Zones RP16 to RP18) from Ocean Drilling Program Site 1052 in order to establish the radiolarian magnetobiochronology and determine the nature of the faunal turnover across the middle/late Eocene boundary in the western North Atlantic Ocean. We recognize and calibrate forty-five radiolarian bioevents to the magneto- and cyclo-stratigraphy from Site 1052 to enhance the biochronologic resolution for the middle and late Eocene. Our data is compared to sites in the equatorial Pacific (Leg 199) to access the diachrony of biostratigraphic events. Eleven bioevents are good biostratigraphic markers for tropical/subtropical locations (south of 30°N). The primary markers (lowest occurrences of Cryptocarpium azyx and Calocyclas bandyca) which are tropical zonal boundary markers for Zones RP17 and RP18 provide robust biohorizons for correlation and age determination from the low to middle latitudes and between the Atlantic and Pacific Oceans. Some other radiolarian bioevents are highly diachronous (<1 million years) between oceanic basins. A significant faunal turnover of radiolarians is recognized within Chron C17n.3n (37.7 Ma) where 13 radiolarian species disappear rapidly in less than 100 kyr and 4 new species originate. The radiolarian faunal turnover coincides with a major extinction in planktonic foraminifera. We name the turnover phase, the Middle/Late Eocene Turnover (MLET). Assemblage analysis reveals the MLET to be associated with a decrease in low-mid latitude taxa and increase in cosmopolitan taxa and radiolarian accumulation rates. The MLET might be related to increased biological productivity rather than to surface-water cooling.

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Oxidized intervals of five organic-rich Madeira Abyssal Plain (MAP) turbidites deposited during the Miocene, Pliocene, and Pleistocene all displayed comparable major loss of total organic carbon (TOC) (84 ± 3.1%) accompanied by a negative isotopic (d13C) shift ranging from -0.3 to -2.9 per mil. Major but significantly lower loss of total nitrogen (Ntot, 61 ± 7.1%) also occurred, leading to a decrease in TOC relative to Ntot (C/Ntot) and a +1.3 to 2.7 per mil Ntot isotopic (d15N) shift. Compound specific isotopic measurements on plant wax n-alkanes indicate the terrestrial organic component in the unoxidized deposits is 13C-enriched owing to significant C4 contribution. Selective preservation of terrestrial relative to marine organic carbon could account for the d13C behavior of TOC upon oxidation but only if a 13C-depleted component of the bulk terrestrial signal is selectively preserved in the process. Although the C/Ntot decrease and positive d15N shift seems inconsistent with selective terrestrial organic preservation, results from analysis of a Modern eolian dust sample collected in the vicinity indicate these observations are compatible. Regardless of the specific explanation for these isotopic observations, however, our findings provide evidence that paleoreconstruction of properties such as pCO2 using the d13C of TOC is a goal fraught with uncertainty whether or not the marine sedimentary record considered is 'contaminated' with significant terrestrial input. Nonetheless, despite major and selective loss of both marine and terrestrial components as a consequence of postdepositional oxidation, intensive organic geochemical proxies such as the alkenone unsaturation index, UK'37, appear resistant to change and thereby retain their paleoceanographic promise.