"Acá hay un trabajo político" : Actores y relaciones en la producción del Plan FinEs 2 Secundaria en la Provincia de Buenos Aires

La ponencia retoma los resultados preliminares de un proyecto de investigación en curso en la Universidad Pedagógica de la Provincia de Buenos Aires referido a la implementación del Plan FinEs 2 Secundaria en tres distritos del Conurbano Bonaerense. Se analiza la producción de esta política pública, su desarrollo e institucionalización en el período 2011-2014, concebido como una arena de disputa en la cual los sujetos y organizaciones participantes a nivel local generan "apropiaciones" (Ezpeleta, 2004), que plasman en sentidos, prácticas y dispositivos singulares, producto de una particular trama de relaciones. La hechura del Plan FinEs 2S transita en los intercambios entre actores referenciados en organizaciones y ámbitos gubernamentales diversos, impregnados por racionalidades, intereses y lógicas atribuibles al sistema educativo, a la política social, a la organización popular. Las permanentes interacciones que se tejen entre ellos en la resignificación cotidiana del Plan y las diversas instancias de negociación, cooperación y conflicto que se van hilvanando, lejos de paralizar su despliegue, resultan particularmente potentes. En los clivajes planteados entre "educación"/"política", "escuela"/"programa de inclusión", "burocracia estatal"/"militancia", se tensionan las tradiciones selectivas del nivel secundario, la dimensión relacional de las capacidades estatales (Alonso, 2007) y la formas hegemónicas de la política territorial

Tensiones y desajustes en los roles actanciales en torno al episodio del asesinato de Lope Díaz de haro según la versión de la Crónica de Sancho IV

Las tensiones políticas que signaron el reinado de Sancho IV (1284-1295) llegan a un punto de inflexión en la entrevista que en 1288 se lleva a cabo en Alfaro, en la cual resulta asesinado el principal enemigo del rey, el conde Lope Díaz de Haro. El episodio se recoge tanto en la Crónica de tres reyes como en la sección conocida como *Historia hasta 1288 dialogada, transmitida en la Estoria del fecho de los godos . La orientación que al hecho se le asigna en ambas versiones es diversa ?entre otras cosas? en el grado de responsabilidad que se le asigna al rey en la decisión de matar al conde. La Crónica de tres reyes tiende a mitigar la injerencia del monarca en los hechos al punto de organizar una serie de situaciones previas que generan las condiciones necesarias para que el asesinato se presente como un hecho inevitable que excede el radio de acción de Sancho.

Radiolarian chronology and fauna across the middle/late Eocene boundary at ODP Hole 171-1052A

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.

Benthic foraminifera stratigraphy of sediments from ODP Leg 199 sites

Benthic foraminifers from Ocean Drilling Program Leg 199 Holes 1215A, 1220B, and 1221C were examined across the Paleocene/Eocene boundary. Assemblages were studied in 240 samples. The benthic foraminiferal extinction event that correlates with the Paleocene/Eocene epoch boundary was recognized at these sites. Benthic assemblages before the event are characterized by high diversity, but those after the event are low in diversity. An assemblage of agglutinated foraminifers without carbonate cement was recognized at Sites 1220 and 1221. These assemblages were typically found after the event. The discovery of such agglutinated assemblages has never been reported before at this boundary.

Characteristics, home ranges and population estimates of narwhals (Monodon monoceros) around Baffin Island

Twenty-one narwhals tagged in 2003 and 2004 in Admiralty Inlet showed a different summer distributional pattern than previous narwhal-tracking studies from Somerset Island, Eclipse Sound and Melville Bay. The migration of the narwhals tracked from Admiralty Inlet moved out through Lancaster Sound 15 days earlier (P <0.0001) than the narwhals summering around Eclipse Sound, whereas the Admiralty Inlet narwhals reached the mouths of Eclipse Sound 18 days later (P <0.0001) than the Eclipse Sound summering population. The winter range of the Admiralty Inlet narwhals overlapped with the winter range of narwhals from Melville Bay and Eclipse Sound in central southern Baffin Bay and Northern Davis Strait, but not with the winter range of narwhals from Somerset Island that wintered further north. Distribution size of range, and population size did not appear to be related. An example of considerable year to year variation between area of summer and winter distribution in the 2 years was believed to be related to the sample size and number of pods of whales tagged, rather than to differences in sex or age classes.

Radiolarian biostratigraphy and chronology of radiolarian events of ODP Leg 199 sites and EW9709 sediment cores

A generally rich radiolarian fauna ranging in age from Quaternary to early Eocene (Zone RP7) was found at five of the eight sites drilled during Ocean Drilling Program (ODP) Leg 199. Of particular interest are the stratigraphically complete assemblages that range in age from middle Miocene (Zone RN5) to early Eocene (Zone RP7), composites of Sites 1218, 1219, and 1220. At the same sites, multisensor track (MST) data show consistent cycles in gamma ray attenuation density, color, and carbonate content that can be correlated on a submeter scale from the early Miocene to early Eocene. In addition, the magnetic reversal records from these three sites allow construction of an absolute timescale. A series of 305 radiolarian morphologic first and last occurrences and evolutionary transitions for radiolarians were determined and correlated directly with the accompanying MST and paleomagnetic data, resulting in a detailed and accurate dating of events. Since many of the bioevents are found at more than one site, it was also possible to test their reliability within the study area. Twelve new species are described: Calocycletta (Calocycletta) anekathen, Dorcadospyris anastasis, Dorcadospyris copelata, Dorcadospyris cyclacantha, Dorcadospyris ombros, Dorcadospyris scambos, Eucyrtidium mitodes, Theocyrtis careotuberosa, Theocyrtis perpumila, Theocyrtis perysinos, Theocyrtis setanios, and Thyrsocyrtis (Pentalacorys) orthotenes.