994 research outputs found
Central-West Argentina summer precipitation variability and atmospheric teleconnections
No full textThe interannual-to-multidecadal variability of central-west Argentina (CWA) summer (October-March) precipitation and associated tropospheric circulation are studied in the period 1900-2010. Precipitation shows significant quasi cycles with periods of about 2, 4-5, 6-8, and 16-22 yr. The quasi-bidecadal oscillation is significant from the early 1910s until the mid-1970s and is present in pressure time series over the southwestern South Atlantic. According to the lower-frequency spectral variation, a prolonged wet spell is observed from 1973 to the early 2000s. The precipitation variability shows a reversal trend since then. In that wet epoch, the regionally averaged precipitation has been increased about 24%. The lower-frequency spectral variation is attributed to the climate shift of 1976/77. From the early twentieth century until the mid-1970s, the precipitation variability is associated with barotropic quasi-stationarywave (QSW) propagation fromthe tropical southern IndianOcean and the South Pacific, generating vertical motion and moisture anomalies at middle-to-subtropical latitudes east of the Andes over southern South America. The QSW propagation could be related to anomalous convection partly induced by tropical anomalous SSTs in the western Indian Ocean (WIO). It could also be linked to another midlatitude source along the storm tracks, to the east of New Zealand. After 1976/77, the precipitation variability is associated with equatorial symmetric circulation anomalies linked to El Niño-Southern Oscillation (ENSO)-like warmer conditions. Positive moisture anomalies are consistently observed at lower latitudes in association with inflation of the western flank of the South Atlantic anticyclone. Outside of this, the precipitation variability is unrelated to ENSO.Fil: Agosta Scarel, Eduardo Andres. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Compagnucci, Rosa Hilda. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin
Caracterización de la circulación atmosférica y la temperatura superficial del mar asociadas a extremos de caudal de ríos andinos y su variabilidad en baja frecuencia
No full textEl objetivo principal del presente trabajo se centra en determinar los mecanismos asociados a la variabilidad de los caudales de los ríos andinos en relación con la circulación atmosférica y la Temperatura Superficial del Mar (TSM) como forzante del sistema climático. Para la circulación atmosférica el estudio se extiende desde la escala sinóptica a la climática. A lo largo de la Cordillera de los Andes se identifican dos zonas en las cuales el comportamiento de los caudales de los ríos muestra similar variabilidad temporal. Estas regiones están representadas por los ríos Chubut (para el área entre el río Neuquén y el río Senguer) y Atuel (para el área entre el río Jachal y el río Colorado). Es de destacar la baja correlación existente entre los caudales de los ríos de una y otra región, lo cual expresa la independencia estadística entre las mismas. Las condiciones topográficas y climáticas dan regímenes hídricos diferenciables. El río Atuel acumula casi el total de su derrame anual de Noviembre a Marzo, como producto del deshielo estival de la nieve precipitada en altas cumbres durante el invierno previo. Por su parte, el caudal del Chubut presenta un máximo invernal debido a precipitación líquida y otro primaveral debido a la precipitación y el derretimiento de nieve. La relación entre los caudales y la TSM es significativa en amplias regiones del Pacífico central del Hemisferio Sur (HS). Sin embargo, mientras la variabilidad del Atuel parece estar íntimamente ligada a los patrones observados del ciclo El Niño / Southern Oscillation (ENSO), con fuertes señales en el Pacífico ecuatorial-tropical y el Océano Indico; el Chubut parece estar menos vinculado con el ENSO, mostrando señales restringidas sólo al área del Pacífico central subtropical del HS. A partir de la relación entre los caudales de los ríos cordilleranos y las anomalías estandarizadas de TSM en la región Niño3+4, se pueden diferenciar cuatro subregiones: 1) Cuyo Norte, donde la relación entre Niño3+4 y los caudales alcanza a alrededor de 14 meses de antelación al período de máximo caudal, 2) Cuyo Sur, donde esta antelación se produce con alrededor de 8 meses, 3) Patagonia Norte, donde la relación entre caudales y Niño3+4 ocurre en forma simultánea y 4) Patagonia Sur, con características similares a Cuyo Norte. Para las regiones 1, 2 y 4 los campos de correlaciones entre TSM y caudales muestran patrones típicos de eventos El Niño / La Niña, evidenciando la relación entre estas anomalías del Pacífico y la precipitación en Cordillera. Altos caudales en la región del río Atuel estarían asociados al frecuente pasaje de bajas presiones que transitan por el Pacífico en dirección al Este, las cuales inducen una convergencia de humedad desde bajas latitudes y una advección de la misma hacia la región cordillerana. Al legar a las costas de Chile central estos sistemas producirían ascenso con intensas nevadas en las cumbres y un descenso con alta presión relativa a sotavento de la Cordillera. En estas condiciones, sobre la zona del litoral argentino y sur de Brasil se produciría una posterior ciclogénesis y un aumento de la baroclinicidad vinculada a un frente asociado, con una consecuente convergencia de humedad desde Brasil, ascenso y altas temperaturas prefrontales. En los casos de alto caudal en la región del río Chubut, los sistemas de baja presión llegarían desde el Pacífico alcanzando latitudes superiores y pasarían la Cordillera sin discontinuidad arrastrando humedad desde regiones subtropicales hacia mayores latitudes. Estos sistemas están acompañados por una marcada reducción de los Oestes asociada al frecuente pasaje de altas presiones sobre el Pacífico sud-oriental. Estas altas presiones han sido asociadas por varios autores a las anomalías de TSM en el Pacífico ecuatorial y a la variabilidad decadal del tipo ENSO, y forman parte de un tren de ondas que se observa sobre el Pacífico Sur proveniente del Océano Indico. Este tren de ondas se observa al correlacionar la altura geopotencial con los caudales del río Atuel aunque no con los caudales del río Chubut. Configuraciones inversas de circulación y TSM estarían asociadas a condiciones de bajo caudal en las regiones estudiadas. Finalmente, los casos de exceso de caudal en la cordillera cuyana y déficit en la patagónica, presentan un patrón de anomalías de circulación similar al observado para casos de exceso de caudal en Cuyo, pero con anomalías de alta presión sobre el Pacífico Sur al Sudoeste de Sudamérica retiradas más hacia la Patagonia; las cuales, por un lado se interponen en la normal trayectoria de las bajas presiones que circulan por el océano en esas latitudes —desviándolas hacia latitudes subtropicales donde alcanzan las costas de Chile central y provocan precipitaciones en Cuyo—; y por otro, contribuyen a inhibir la precipitación en la Cordillera Patagónica. Las condiciones inversas (i.e. bajas presiones sobre el Sur patagónico provenientes del Pacífico Sur con alta baroclinicidad, e intensificación del anticiclón semipermanente del Pacífico) explicarían las situaciones inversas.The main of this work is to determine the mechanisms associated to the variability of the Andean rivers flows, in connection with the atmospheric circulation and the Sea Surface Temperature (SST) like a system forcing. For the atmospheric circulation the study extends from the synoptic scale to the climatic one. Two zones are identified alongside the Argentinean Andes where river streamflows show similar time variability behavior. The zones are represented by the Chubut river (between the Neuquén and the Senguer) and the Atuel river (between the Jachal and the Colorado). It is noticeable the low correlation between the streamflows from one another, which means statistical independence between them. The different topography and climates give different hydrological regimes. The Atuel water-volume from November to March is a product of summer melting of high- Andean snows accumulated in the previous winter. In turn, the Chubut water-volume shows a maximum in winter due to winter precipitation, and a secondary peak in spring due to precipitation and snow melting. The relationship between streamflows and SST is significant in large areas of the Southern Hemisphere (SH) central Pacific. However, the Atuel variability seems to be highly linked to El niño / Southern Oscillation (ENSO) patterns with strong signal in the tropical-equatorial Pacific and the Indian Ocean, whereas the Chubut seems to be less associated with the ENSO, showing signal restricted to the SH central subtropical Pacific. From the relationship between the studied flows and the standardized TSM anomalies Niño3+4 region, the following four subregions can be determined: 1) Northern Cuyo, where the relationship between Niño3+4 and the flows reaches to around 14 months of advance to the period of maximum flow, 2) Southern Cuyo, where this advance takes place around 8 months earlier, 3) Northern Patagonia, where the relationship between the flows and Niño3+4 occurs simultaneously and 4) Southern Patagonia, with similar characteristics to Northern Cuyo. For the regions 1, 2 and 4 the correlations fields between TSM and flows show the typical patterns of El Niño / La Niña events, showing the relationship between these Pacific anomalies and the Andean Mountains precipitation. High streamflows in the Atuel zone are associated with frequent passage of low-pressure systems moving eastward over the Pacific, which induce moisture convergence from lower latitudes and its advection toward the Andean region. The lows reaching the central Chilean coast would produce upward air motion with intense snowstorms in the high mountains and downward air motion with relative high pressures leeward the Andes. Hence, over northeastern Argentina and southern Brazil, a later cyclogenesis and an increase of the baroclinicity linked to a frontal zone would be produced, with consequent moisture convergence from Brazil, upward air motion and high pre-frontal temperatures. In cases of high streamflows in the Chubut zone, the low-pressure systems from the Pacific would reach the Chilean coast at higher latitudes, crossing over the natural further low Andes with no discontinuity and transporting moisture from subtropical latitudes. The subtropical low systems are linked to a remarkable reduction of the westerlies owing to higher frequency of highs at the southeast Pacific. Some researchers associate these highs with equatorial SST anomalies and the decadal ENSO-like variability and they may take part of a wave-train from the Indian Ocean extended over the southern Pacific. The wave-train can be observed by the correlation between the Atuel streamflows and the geopotential height, but not for the Chubut streamflows. Inverse circulation and SST features would be associated to low streamflows in the studied regions. Finally, the cases of high flows in Cuyo and low flows in Patagonia, present a pattern of anomalous circulation similar to the one observed for cases of high flows in Cuyo, but with high-pressure anomalies on the South Pacific at the Southwest of South America moved over the Patagonia. Those high-pressure anomalies interfere the normal track of the low-pressures systems —which usually circulate through the ocean at these latitudes—, which change their trajectory going toward subtropical latitudes where they reach the central Chile costs and generate precipitations in Cuyo. Additionally, those high-pressure anomalies contribute to inhibit the precipitations in the Patagonia. The inverse conditions (low-pressures systems coming from the South Pacific, with high baroclinicity on Southern Patagonia, and the enhance of the Pacific semi-permanent anticyclone), would explain the inverse cases.Fil: Araneo, Diego C.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Abrupt Climate Changes During the Marine Isotope Stage 3 (MIS 3)
No full textThe climate in the North Atlantic Ocean during the Marine Isotope Stage 3 (MIS 3)—roughly between 80,000 years before present (B.P.) and 20,000 years B.P., within the last glacial period—is characterized by great instability, with opposing climate transitions including at least six colder Heinrich (H) events and fourteen warmer Dansgaard–Oeschger (D-O) events. Periodic longer cooling cycles encompassing two D-O events and ending in a colder Heinrich episode occurred lasting about 10 to 15 ky each, known as the Bond cycle. Heinrich events occurred less frequently than D-O events. These were recurrent every 1.5 ky on average, while ~10 ky elapsed between two H events. Neither of the two types of events is strictly periodical, however. After H events abrupt shifted to warmer climate, the D-O events followed immediately. During an H event, abnormally large amounts of rock debris transported by icebergs were deposited as layers at the bottom of the North Atlantic Ocean. The various theories on the causes include factors internal to the dynamics of ice sheets, and external factors such as changes in the solar flux and changes in the Atlantic Meridional Overturning Circulation (AMOC). The latter is the most robust hypothesis. At certain times, these ice sheets released large amounts of freshwater into the North Atlantic Ocean. Heinrich events are an extreme example of this, when the Laurentide ice sheet disgorged excessively large amounts of freshwater into the Labrador Sea in the form of icebergs. These freshwater dumps reduced ocean salinity enough to slow down deep-water formation and AMOC. Since AMOC plays an important role in transporting heat northward, a slowdown would cause the North Atlantic Ocean to cool. Later, as the addition of freshwater decreased, ocean salinity and deep-water formation increased and climate conditions recovered. During the D-O events, the high-latitude warming occurred abruptly (probably in decades to centuries), reaching temperatures close to interglacial conditions. Even though H and D-O events seemed to have been initiated in the North Atlantic Ocean, they had a global footprint. Global climate anomalies were consistent with a slowdown of AMOC and reduced ocean heat transport into the northern high latitudes. The bipolar pattern with warming conditions in the Northern Hemisphere (NH) and cooling in the Southern Hemisphere (SH) is discussed from the information published by various authors who have used the limited data available for the SH, and palaeoclimatic simulations obtained by numerical modelling. Results show that the SH mid-latitude anomalies presented much smaller magnitude than those of the NH.Fil: Agosta Scarel, Eduardo Andres. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires". Secretaría Académica. Dirección de Investigaciones. Equipo Estudios de Procesos Atmosféricos en el Cambio Global; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Compagnucci, Rosa Hilda. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires". Secretaría Académica. Dirección de Investigaciones. Equipo Estudios de Procesos Atmosféricos en el Cambio Global; Argentin
Relationship Among a Supernova, a Transition of Polarity of the Geomagnetic Field and the Pliocene-Pleistocene Boundary
No full textAfter the Middle Miocene, two important climatic changes took place, consisting mainly of cooling in both hemispheres. One occurred between 7.0 and 5.4 Ma and another at the end of the Pliocene, which marked the beginning of the Pleistocene in approximately 2.58 Ma. The proposal of thispresentation is to analyze diverse forcings of these climatic changes, such as the influence of the joint occurrence of reversions of the geomagnetic field andexplosions of a supernova. These events occurred coincidentally with thecooling of Earth. Also, biological changes in those time intervals are analyzed,especially the evolution of the Hominins since the oldest hominin fossils. Thecharacteristics of the Galactic Cosmic Rays, its influence on the climate and its potential mutogenetic effect were taken into account.Briefly, according to our analysis, it seems to be evident that together withother factors, the joint occurrence of the explosion of a supernova at less than100 pc from the Earth and the weakening and/or reversion of the GeomagneticField was an important factor that promoted these two climatic and ecosystemchanges.Fil: Compagnucci, Rosa Hilda. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Orgeira, Maria Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; ArgentinaFil: Sinito, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Cappellotto, Luiggina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; ArgentinaFil: Plastani, María Sofía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentin
Simulación de la pequeña Edad de Hielo usando el modelo EdGCM
No full textLa Pequeña Edad de Hielo fue un período frío que abarcó desde mediados del siglo XIV hasta mediados del siglo XIX. Durante ese tiempo ocurrieron tres pulsos de temperaturas extremadamente bajas. En el presente trabajo se analiza el segundo de ellos denominado Mínimo de Maunder (MM) que ocurrió entre 1645 y 1715. La disminución de la actividad solar, el aumento de la actividad volcánica y el cambio en las concentraciones de Dióxido de Carbono fueron sus principales forzantes. Mediante el Modelo de Circulación General EdGCM se realizan distintas simulaciones de las condiciones climáticas, con el fin de obtener escenarios de respuesta de la temperatura y la circulación atmosférica a los cambios producidos en la irradiancia y los gases invernadero, en especial del CO2. A su vez, son calculadas por medio de los re-análisis del NCEP/NCAR, las diferencias climáticas entre años de máxima y minima irradiancia a fin de compararlas con las diferencias ocurridas entre las condiciones actuales y del MM dadas por el modelo. Las anomalías anuales de temperatura, entre el MM y las condiciones de fines del siglo XX, son negativas para ambos hemisferios y las anomalías de temperatura resultan más intensas para el semestre frío. Además, sobre Sudamérica, se observa un centro más intenso en latitudes subtropicales y desde el centro hasta el sur de Patagonia. El patrón de enfriamiento simulado por el modelo concuerda, en algunos casos aún en magnitud, con la información de proxy datos de algunas regiones de Sudamérica. La componente zonal del oeste se muestra desplazada hacia menores latitudes durante el MM. Los campos de anomalías de circulación atmosférica simulados para el MM, muestran un patrón, en latitudes medias y altas, en que alternan tres ó cuatro centros positivos con negativos, el cual concuerda con una mayor componente meridional del flujo. Ambos resultan patrones parecidos con los que ocurren actualmente durante eventos El Niño.The Little Ice Age (LIA) was a cold period that ranged from taken part of the century XIV until taken part of the century XIX. In the period occurred three pulses of minimum values of temperature and will study the second of them comprised between 1645-1715 designated Maunder Minimum (MM). The decrease of the solar activity, the increase of the volcanic activity and the change in the Carbon Dioxide concentrations were the main forcings during these periods. In present work we realize distinct simulations of the climatic conditions for the South Hemisphere, by means of the General Circulation Model EdGCM, with the end to obtain stages of answer to the changes of irradiance and CO2 for the MM. At the same time, the climatic differences between years of maxima and minimum values of sunshine during the century XX determined by means of the results of the re-analysis of the NCEP/NCAR, compare with the differences between the current conditions and the ones of the MM, simulated by the model. The anomalies between the XX century and the MM obtained with the EdGCM are in agree qualitatively, and also quantitatively in some locations, with the proxy data information for various regions of the Hemisphere South. The annual temperature anomalies, between the MM and the 20th century ending conditions, are negative for both hemispheres and the temperature anomalies result more intense on semester November-April. Furthermore, over South America, shows a more intense centre in subtropical latitude and central and south Patagonia. The cold pattern obtained by the model is in agreement, on magnitude too, with proxy information obtained in some South America regions. The westerly wind component undergoes a shift to lower latitudes during the MM. The atmospheric circulation anomalies obtained in the simulations, show a pattern, over middle and high latitudes, where alternate three or four positive and negative anomaly centres, which is in agreement with a greater meridional component of the flux. Both patterns are similar to those present during El Niño events.Fil: Maenza, Reinaldo Agustín. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Compagnucci, Rosa Hilda. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin
Mid-Holocene evolution and paleoenvironments of the shoreface–offshore transition, north-eastern Argentina: New evidence based on benthic microfauna
No full textA sedimentary record spanning 5792-5511 cal yr BP and 3188-2854 cal yr BP was recovered at 36° 45′ 43″ S-56 ° 37′ 13″ W, south-west South Atlantic. The sedimentological features and micropaleontological (benthic foraminifera and ostracoda) content were analyzed in order to reconstruct paleoenvironmental conditions. Considerable environmental fluctuations are indicated by all these proxies. Five different stages were distinguished: Stage 1 (ca. 5800-5000 cal yr BP) consists of muddy sand with abundant microfossils. In this interval, species typical for inner marine shelf environments maintained a high abundance. Stage 2 consists of plastic light greenish grey clays barren of microfossils, and probably represents fluvial input from the de la Plata River to the shelf contemporaneous of a lowering of sea level. Stage 3 is composed of brownish yellow sandy silts, and represents increasing marine conditions in the area as reflected by higher faunal diversity and typical foraminifera of inner shelf environments. Stage 4 is made of homogeneous mud, barren of microfossil, which represents a new pulse of fluvial input to the shelf in consequence of a new fall in sea level. The final part of the core (Stage 5) is a coarsening upward sequence, grading from greeny brown clayey sandy silts to coarse shelly sands and represents the modern sedimentation in the area. This interpretation strengthens the stepped model of late-Holocene sea-level fall between 5511-5792 cal yr BP and 2854-3188 cal yr BP in Buenos Aires coast, and agrees with the relative sea-level history previously proposed by some authors from western South Atlantic coasts.Fil: Laprida, Cecilia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: García Chapori, Natalia Luz. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Violante, Roberto A.. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval. Departamento Oceanografía; ArgentinaFil: Compagnucci, Rosa Hilda. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin
Diario de Campo: Boletín Interno de los investigadores del área de Antropología. 99 (2008) agosto. Diario de Campo
No full textPresentación por Rosa María Reyna, Samuel Villela y Juan José Atilano. - Wllllam Niven antes de Guerrero (1850- 1890) por Robert S Wicks. - La vida de la familia de William Niven y Nellie Pulcell por Roland H. Harrison. - Explorando vetas y placeres de oro en Guerrero por Brígida von Mentz. - De forasteros y minería en el estado de Guerrero. Siglos XIX y XX por Jaime Salazar Adame. – William: descubriendo el pasado arqueológico de Guerrero por Rosa maría Reyna Robles. – Pueblos, lugares y costumbres. El retrato de Guerrero desconocido por William Niven por Samuel Villela Flores. – William Niven: la paz porfiriana y la Revolución en Guerrero por Jaime Salazar Adame
O "homo viator" na Divina Commedia e no Grande Sertão: veredas
No full textTese (doutorado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão. Programa de Pós-Graduação em LiteraturaEsta tese busca problematizar um estudo comparado entre a Divina commedia e o Grande sertão: veredas a partir da noção de "Homo viator". Para tanto, nossa análise se concentrou sobre a percepção do aprimoramento do viajante que é também o protagonista nas duas obras Este viajante ficcional é concebido segundo um feixe de relações que Dante-autor e Guimarães Rosa realizam ao compor suas obras, de maneira que nos primeiro e segundo capítulos nos detivemos em alguns destes elementos, a saber: a presença da noção de êxodo bíblico bem como do viajante náutico greco-latino na caracterização deste viajante, o recurso ao narrador-protagonista e a composição das obras como literatura de viagem. Para analisar estes elementos nos utilizamos dos postulados da literatura comparada, da teoria dos arquétipos e da metafísica platônica. Por fim, no terceiro capítulo, realizamos um confronto entre dois episódios das referidas obras: a viagem de Ulisses presente no canto XXVI do Inferno e a viagem ao Liso do Sussuarão presente no Grande sertão: veredas. Este estudo tem por finalidade apresentar o "Homo viator" como metáfora da incansável busca humana da verdade.This dissertation performs a comparative study between the Divina Commedia and Grande Sertão: Veredas, having as a starting-point the notion of "Homo viator". Our analysis focuses on the path towards improvement undertaken by the "traveler", who is also the protagonist in both works. This fictional traveler is conceived of as a nexus of relationships that Dante-the-author and Guimarães Rosa construct in the making of each of their works, and it is to some of these relationships that we will pay attention in the first and second chapters, namely: the notion of the biblical exodus; the figure of the Roman-Greek nautical traveler in the characterization of the "homo viator"; the narratorprotagonist as a narrative device; and the caracterization of the works as travel literature. In order to perform an analysis of such elements, we draw our theoretical premises from the field of comparative literature, the theory of archetypes, and Platonic metaphysics. Lastly, in the third chapter, we compare and contrast two episodes from the referred works: the journey undertook by Ulysses in Canto XXVI of the Inferno, and the crossing of the "Liso do Sussuarão" in Grande Sertão: Veredas. The current work aims to present the "Homo viator"as a metaphor for the indefatigable human quest for truth
The virtual image : Brazilian literature in English translation
No full textThe
aim of this thesis is to
examine
how the virtual
image
of Brazil
and
its literature is
constructed
in the Anglo-American world. To this
end, a survey of
Brazilian literary
works
in English translation was
carried out.
Having
gathered this data, it became
possible to establish
correlations
between the historical
moments when such translations
were made, when their number
increased,
and the events occurring at
those times in the international
panorama, as well as to look into the
role of sponsors, publishers and translators in the
selection and
production of such translations.
The data
also allowed a profile of
Brazilian literary
works
in
English translation to be drawn. It became
possible to suggest that
such works
fall into four
main categories:
`authorial
works',
'topical
works',
`ambassadorial
works'
and `consumer-oriented
works'.
In
order
to look
more closely
into how the translation process
has helped to
shape
the
virtual
image
of Brazilian literary
works
in
the Anglo-American world, an analysis of a sample of
translations
of
such works was made. Included in this
sample were
the translations
of works
by Machado de Asis, by Indianist
and
Regionalist
wirters,
culminating
in
an examination of translations of
GuimarAes Rosa's
works.
Having looked
at these aspects of
the translation
process, what
remained
to be done
was to investigate
to what extent
Brazilian
literary
works
in English translation
are read
by the English-
speaking public.
To this
end, a survey of availability and
library
readership was undertaken. Finally,
a reading experiment was carried
out
in
which native speakers of
English
were asked to read the short
story
'A terceira
margem
do
rio',
by GuimarAes Rosa.
The
conclusion attempts to pull all these threads together and
to indicate directions for further
research
Primera experiencia de campo México-Canadá . 4 Segunda época Año 2 (2018) julio-diciembre. Rutas de Campo. Trabajo de Campo: Experiencias para entretejer la antropología
No full textDirección General de Empleo/Secretaría de Trabajo y Previsión Social (2017). “Evaluación temporada 2017. Programa de trabajadores agrícolas temporales mexicanos en Canadá”. México.Gobierno de los Estados Unidos Mexicanos/Gobierno de Canadá (1974). “Memorándum de Entendimiento entre el gobierno de los Estados Unidos Mexicanos y el gobierno de Canadá relativo a la admisión en Canadá de trabajadores agrícolas migratorios mexicanos”.H. Congreso del Estado Libre y Soberano de Oaxaca (2014). LXI Legislatura Constitucional, artículo 12. Decreto núm. 538. Oaxaca.Kraemer, Gabriela (2003). Autonomía indígena región mixe: relaciones de poder y cultura política. México: Plaza y Valdés.Mir, Claudia (coord.) (2016). Evaluación de procesos del Programa de Trabajadores Agrícolas Temporales México- Canadá (ptat). Documento 3: Informe final evaluación de procesos del Programa de Trabajadores Agrícolas Temporales México-Canadá. México: Coordinación General del Servicio Nacional de Empleo.Robinson, William I. (2013). Una teoría sobre el capitalismo global. Producción, clase y Estado en un mundo transnacional. México: Siglo XXI Editores.Sandoval, Juan Manuel, y Vanegas, Rosa María (2001). “Migración laboral agrícola mexicana temporal hacia Estados Unidos y Canadá: viejos y nuevos problemas”. Dimensión Antropológica, 21, pp. 113-172.Vanegas, Rosa María (s.f.). Notas de Campo 1998-2018._____ (2000). “Relaciones bilaterales México-Canadá”. Antropología. Boletín Oficial del inah, 59, pp. 28-37._____, y Reigada, Alicia (2013). “¿Hacia el modelo ideal de una migración ordenada? Un análisis comparado de los programas de trabajadores agrícolas de temporada en Canadá-México y España-Europa del Este y Marruecos”. Antropología Boletín oficial del inah, 96, pp. 26-37
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