988 resultados para Mexico. Congreso.
Resumo:
Fil: Palleroni, Norberto J.. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias
Resumo:
artículo publicado en la revista Int Fam Plan Perspect. 2003 Sep;29(3):112-20
Resumo:
Fil: A. R. L..
Resumo:
Fil: Congreso Antifiloxérico y de Sanidad Vitícola (1ª. : 1952 : Mendoza, Argentina).
Resumo:
Fil: Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Comisión de Revista.
Resumo:
A relatively extended Oligocene pelagic sequence with good to medium recovery, drilled during DSDP Leg 77 in the Gulf of Mexico, yielded rich and well diversified planktonic foraminiferal faunas. Planktonic foraminifera recorded in Hole 538A span the interval from Zone P19 through P22. Evolutionary lineages were observed among the globoquadrinids, the globigerinitids, and the "Globigerina" ciperoensis and Globigerinoides primordius groups. Quantitative analysis of planktonic foraminiferal assemblages shows that faunas fluctuate in abundance and species diversity throughout the sequence. A few of these fluctuations that could be related to selective dissolution are mainly confined to the early-mid Oligocene. A climatic curve was constructed using as warmer indicators, Turborotalia pseudoampliapertura, Globoquadrina tripartita, Dentoglobigerina globularis, Dentoglobigerina baroemoenensis,. "Globigerina" ciperoensis and Globigerinoides groups, and Cassigerinella chipolensis; and as coller indicators, Catapsydrax spp., Globorotaloides spp., Subbotina angiporoides group, Globigerina s. str., and the tenuitellides. Three major intervals are identifiable in the climatic curve: Interval 1 (lower) up to Zone P20 predominantly cooler: Interval 2 (intermediate) up to the upper part of Zone P21a with warm and cool fluctuations: and lnterval 3 (upper), warmer, with a large positive peak, due to abundant "G." angulisuturalis, at the beginning of Zone P21b with recooling midway in Zone P22. In Intervals 1 and 2 planktonic foraminiferal faunas are dominated by temperate forms. Interpretation of planktonic foraminiferal data suggests that cooler water conditions characterize the early-mid Oligocene: during the mid Oligocene (most of Zone P21a) water masses exhibit peculiar characteristics transitional to the warmer waters prevailing during the late Oligocene. Warmer conditions were not definitely settled in Zone P22, however, as indicated by the cooler episode following the warmest peak. These climatic trends are inconsistent with those inferred from oxygen isotopes except at small scale. In fact, oxygen isotope values for Oligocene Atlantic Ocean are too heavy (thus too cool) in comparison with the high abundance and diversity of warm taxa, expecially in Zone P22. When values are lighter (warmer), as in Zone P19 abundance and diversity of warm indices are too low. To explain such a cool isotope values in presence of highly diversified and abundant warm planktonic foraminifera, we suggest (1) that the oxygen isotope ratio used for estimating Oligocene paleotemperatures might be 1? heavier than Eocene values and further increased for the late Oligocene. This hypothesis implies the presence of a relatively extended ice cap in Antarctica in the early and mid Oligocene, and probably an increase in ice volume during the late Oligocenc: (2) heavier isotope values might be related to an increase in salinity, or (3) by a combination of both ice cap and increase in salinity.
Resumo:
Fil: Andriotti Romanin, Enrique Salvador. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.
Resumo:
La presente tesina tiene por objeto aportar al debate sobre el campo intelectual de la educación (CIE) durante el período de transición democrática (1983-1989) en relación con el Segundo Congreso Pedagógico Nacional (SCPN). Realizo un análisis sobre las continuidades y rupturas que se dieron en el marco teórico que emplea Adriana Puiggrós en sus textos anteriores al SCPN y los que produjo para analizarlo. Describo algunas de las estrategias que ha construido la autora para definir su posición en el CIE. Fui construyendo las principales categorías conceptuales que definen este marco conceptual y la van diferenciando de posturas como el funcionalismo, el positivismo y las primeras posiciones del marxismo. Estas categorías, en especial las de educación popular, sujetos de la educación y hegemonía serán centrales para la construcción de su interpretación de lo acontecido en el SCPN y para la definición de su lugar en el CIE.
Resumo:
Fil: Galán, Lía Margarita. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.
Resumo:
Fil: Pavón, María Cecilia. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.