61 resultados para Toba-Batak
Resumo:
O objetivo deste trabalho foi analisar estudos relevantes sobre as alterações de compreensão em crianças e adolescentes com Distúrbio Específico de Linguagem (DEL). Para tanto, realizou-se levantamento bibliográfico em bases de dados científicas. A literatura revela que essa população pode apresentar dificuldade importante de compreensão oral, atribuída ou à falta de conhecimento linguístico ou a falhas de processamento. Conforme se desenvolvem, as crianças com DEL apresentam evolução das habilidades de compreensão. No entanto, dificuldades persistem mesmo em faixas etárias mais avançadas, como a adolescência. Dessa forma, é importante diagnosticar precocemente tais alterações e intervir devidamente. Pesquisas científicas comprovam a efetividade da terapia fonoaudiológica por meio de técnicas variadas.
Resumo:
En el marco de mi investigación doctoral, una de mis premisas centrales es que el género como estructura y diferencia social es permanentemente construida sobre la base de una interpretación de la diferencia sexual y presenta tres dimensiones interrelacionadas: se corporifica (en cuerpos concretos que se modelan socialmente), se espacializa (el género tiene un correlato inmediato en la producción social de los espacios y lugares) y se representa y se simboliza (a través de discursos y representaciones sobre lo femenino y lo masculino, manifiestas en el lenguaje, las ideologías y las identidades). En este trabajo me propongo explorar en términos teórico-metodológicos un momento de esta relación: la vinculación entre género y cuerpo, entre género y corporificación del género y también, entre género y el concepto de habitus (Bourdieu, 1998) considerando la construcción cultural del género entre los tobas del oeste de Formosa, Argentina, Chaco centro-occidental.
Resumo:
The Toba volcanic event, one of the largest eruptions during the Quaternary, is documented in marine sediment cores from the northeastern Arabian Sea. On the crest of the Murray Ridge and along the western Indian continental margin, we detected distinct concentration spikes and ash layers of rhyolithic volcanic shards near the marine isotope stage 5-4 boundary with the chemical composition of the "Youngest Toba Tuff". Time series of the Uk'37-alkenone index, planktic foraminiferal species, magnetic susceptibility, and sediment accumulation rates from this interval show that the Toba event occurred between two warm periods lasting a few millennia. Using Toba as an instantaneous stratigraphic marker for correlation between the marine- and ice-core chronostratigraphies, these two Arabian Sea climatic events correspond to Greenland interstadials 20 and 19, respectively. Our data sets thus depict substantial interstadial/stadial fluctuations in sea-surface temperature and surface-water productivity. We show that variable terrigenous (eolian) sediment supply played a crucial role in transferring and preserving the productivity signal in the sediment record. Within the provided stratigraphic resolution of several decades to centennials, none of these proxies shows a particular impact of the Toba eruption. However, our results are additional support that Toba, despite its exceptional magnitude, had only a minor impact on the evolution of low-latitude monsoonal climate on centennial to millennial time scales.
Resumo:
Sedimentological, geochemical and paleomagnetic records were employed to reconstruct the history of East Asian Monsoon variability in the South China Sea (SCS) on orbital- and millennial-to-sub-decadal time scales. A detailed magnetostratigraphy for the southern central SCS was established as well as a stable isotope stratigraphy for ODP Site 1144 for the last 1.2 million years in the northern South China Sea. Furthermore a volcanic tephra layer from the southern central SCS could be identified as the Youngest Toba Ash, which thus re-presents an important age marker and was used to reconstruct paleo wind directions during the eruption 74 ka. Special attention was paid to the high- and ultrahigh-frequency variability in the last glacial-interglacial cycle and the Holocene, and to a precise age control of climate changes in general.
Resumo:
Fil: Pelossi, Claudia Teresa. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.
Resumo:
La presente investigación indaga en las experiencias de vida de personas Qom [Toba] provenientes de la provincia del Chaco que han migrado a La Plata y se han asentado en la periferia de la ciudad, en el barrio Las Quintas de la Delegación San Carlos. El objetivo central es el de analizar cómo se articulan el proceso migratorio y las reconfiguraciones identitarias que éste proceso supone en las trayectorias laborales de estas personas. La estrategia metodológica que orientó el trabajo de campo es de tipo cualitativo. Los datos empíricos fueron construidos en base a un constante trabajo de observación participante en el barrio desde mediados del 2011 hasta fines del 2012 y a la realización de entrevistas en profundidad orientadas a reconstruir las trayectorias
Resumo:
Fil: Pelossi, Claudia Teresa. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.
Resumo:
La presente investigación indaga en las experiencias de vida de personas Qom [Toba] provenientes de la provincia del Chaco que han migrado a La Plata y se han asentado en la periferia de la ciudad, en el barrio Las Quintas de la Delegación San Carlos. El objetivo central es el de analizar cómo se articulan el proceso migratorio y las reconfiguraciones identitarias que éste proceso supone en las trayectorias laborales de estas personas. La estrategia metodológica que orientó el trabajo de campo es de tipo cualitativo. Los datos empíricos fueron construidos en base a un constante trabajo de observación participante en el barrio desde mediados del 2011 hasta fines del 2012 y a la realización de entrevistas en profundidad orientadas a reconstruir las trayectorias
Resumo:
La presente investigación indaga en las experiencias de vida de personas Qom [Toba] provenientes de la provincia del Chaco que han migrado a La Plata y se han asentado en la periferia de la ciudad, en el barrio Las Quintas de la Delegación San Carlos. El objetivo central es el de analizar cómo se articulan el proceso migratorio y las reconfiguraciones identitarias que éste proceso supone en las trayectorias laborales de estas personas. La estrategia metodológica que orientó el trabajo de campo es de tipo cualitativo. Los datos empíricos fueron construidos en base a un constante trabajo de observación participante en el barrio desde mediados del 2011 hasta fines del 2012 y a la realización de entrevistas en profundidad orientadas a reconstruir las trayectorias
Resumo:
Fil: Pelossi, Claudia Teresa. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.
Resumo:
The Toba lake event, the Australasian microtektite event, and the Cretaceous/Paleogene boundary were analyzed on the basis of foraminifers, carbonate content, trace elements, and spherules (microtektites). The Toba ash event, recovered in Hole 758C, may have had minor influences on the foraminiferal populations. The Australasian tektite event has probably some influence on foraminiferal ecology, because the larger specimens become scarce just above the microtektite layer. Microtektites recovered from Hole 758B closely resemble spherules recovered from several Cretaceous/Paleogene boundary localities in North America. The Cretaceous/Paleogene spherules, however, are usually larger and are completely altered to goyazite in the terrestrial environment and to smectite in a marine environment. The Cretaceous/Paleogene boundary of Hole 752B does not show obvious anomalous trace-element concentrations, and iridium concentrations are below our detection limits. The trace-element pattern is dominated by the alternation of chalk with volcanic ash layers above the Cretaceous/Paleogene boundary.
Resumo:
A tephrochronology of the past 5 Ma is constructed with ash layers recovered from Neogene sediments during drilling at ODP Leg 121 Site 758 on northern Ninetyeast Ridge. The several hundred tephra layers observed in the first 80 m of cores range in thickness from a few millimeters to 34 cm. Seventeen tephra layers, at least 1 cm thick, were sampled and analyzed for major elements. Relative ages for the ash layers are estimated from the paleomagnetic and d18O chronostratigraphy. The ash layers comprise about 1.7% by volume of the sediments recovered in the first 72 m. The median grain size of the ashes is about 75 ?m, with a maximum of 150 ?m. The ash consists of rhyolitic bubble junction and pumice glass shards. Blocky and platy shards are in even proportion (10%-30%) and are dominated by bubble wall shards (70%-90%). The crystal content of the layers is always less than 2%, with Plagioclase and alkali feldspar present in nearly every layer. Biotite was observed only in the thickest layers. The major element compositions of glass and feldspar reflect fractionation trends. Three groupings of ash layers suggest different provenances with distinct magmatic systems. Dating by d18O and paleomagnetic reversals suggests major marine ash-layer-producing eruptions (marine tephra layers > 1 cm in thickness) occur roughly every approximately 414,000 yr. This value correlates well with landbased studies and dates of Pleistocene Sumatran tuffs (average 375,000-yr eruptive interval). Residence times of the magmatic systems defined by geochemical trends are 1.583, 2.524, and 1.399 Ma. The longest time interval starts with the least differentiated magma. The Sunda Arc, specifically Sumatra, is inferred to be the source region for the ashes. Four of the youngest five ash layers recovered correlate in time and in major element chemistry to ashes observed on land at the Toba caldera.