Entre el código epigráfico y el literario : cineres atque ossa peremptae (VERG. Aen. 5, 787)

La problemática de la recepción del hemistiquio virgiliano cineres atque ossa peremptae (VERG. Aen. 5, 787) en el formulario epigráfico cuestiona la validez y los límites de la Quellenforschung que desde el s. XVIII incide en la teoría y en la práctica de los estudios filológicoliterarios en general, repercutiendo particularmente en el análisis epigráfico. Aunque este planteo exige restringir la difusión usualmente atribuida al hemistiquio de la Eneida, el análisis del origen, naturaleza y supuestas citas directas o adaptadas en las inscripciones métricas pone al descubierto la dinámica de influencias mutuas y complejas entre la expresión literaria y el formulario epigráfico.

Nuevas estrategias para enfrentar los cambios en la organización del trabajo. El caso del Instituto Nacional de Capacitación Profesional y Tecnológico para Empleados de Comercio (INCAPTEC)

Este trabajo se propone analizar la instrumentación del Art. 102 del Convenio Colectivo de Trabajo 130/75 a fin de reflexionar acerca de los cambios operados en el mundo del trabajo, tras las políticas neoliberales de los años noventa, las cuales han dejado consecuencias no deseables. Entre ellas, el desempleo estructural; la creciente precarización del uso de la mano de obra; la degradación creciente en la relación hombre-naturaleza, cuyo valor principal pasó a ser la producción de mercaderías y la valorización del capital (Antunes, 2005). En este sentido, entonces, resulta indispensable que los actores sociales articulen estrategias que otorguen a los trabajadores mejores y más efectivas herramientas para insertarse, mantenerse o reinsertarse en el mercado de trabajo. Este trabajo se articula de la siguiente manera: en primer lugar se analizó cómo se llevó adelante esta iniciativa, tomando como fuente de análisis la oferta de capacitación del INCAPTEC. En segundo lugar, se indagó sobre la existencia, o no, de dispositivos de control puestos en juego a través de la oferta de cursos planteada por las instituciones mencionadas. Al finalizar, planteamos algunas conclusiones respecto al papel que juega la formación profesional propuesta por el INCAPTEC para los trabajadores que se desempeñan en el sector bajo análisis

Sindicalismo y conflicto laboral : Debates para el análisis del Sindicato de Empleados de Comercio y Asociación de Trabajadores del Estado

Fil: Beliera, Anabel. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina.

Calcium carbonate, organic carbon, d13C and C/N composition of ODP Sites 186-1150 and 186-1151

Past changes in sea-surface productivity in the Oyashio Current are evaluated on the basis of abundances of biological constituents in sediments from Leg 186 sites. Organic carbon contents at Sites 1150 and 1151 are moderate (0.5 to 1.5 wt%) and have an algal origin as indicated by low C/N ratios (<10) and by carbon isotopic compositions ranging from -23.4 to -21.3. A decreasing trend in organic carbon contents, carbon isotope ratios, and C/N ratios occurs with depth at both sites, probably as a consequence of diagenetic degradation of organic matter. Mass accumulation rates (MARs) determined for organic carbon and carbonates at Sites 1150 and 1151 show an abrupt increase between ~5 and 7 Ma. Similar results have been reported for sites in the Indian Ocean and the Pacific Ocean for the same time interval. As it has been previously suggested, the observed increase in MAR for both carbonate and organic carbon at Leg 186 sites probably resulted from augmented nutrient supply either from continental sources or from a more vigorous ocean circulation.

Stable isotope ratios and geochemical composition of authigenic carbonates from ODP Sites 186-1150 and 186-1151

Several carbonaceous layers or fragments were recovered from sediments of Sites 1150 and 1151 on the deep-sea terrace of the Japan Trench during Leg 186. The X-ray diffraction analysis (XRD) data indicate that these are predominantly dolomitic. In this study, carbon and oxygen isotopes of these carbonates recovered at Sites 1150 and 1151 are presented. The oxygen isotope ratios of the dolomites analyzed range from +0.4 per mil to +4.1 per mil vs. Peedee formation belemnite (PDB) and those of calcites from +0.6 per mil to +2.8 per mil PDB. The isotopic composition of carbon varies from -7.0 per mil to +12.3 per mil PDB in dolomite and from -13.4 per mil to -24.1 per mil PDB in calcite. The wide range of carbon isotopic compositions indicates that the carbonate samples were formed by the decomposition of organic matter through reactions such as oxidation, sulfate reduction, and methane formation during diagenesis.

Arctic Siberia: Modern pollen dataset and pollen spectra changes over the last 7,000 years from a lacustrine sediment core (southern Taymyr region)

Palaeoecological investigations in the larch forest-tundra ecotone in northern Siberia have the potential to reveal Holocene environmental variations, which likely have consequences for global climate change because of the strong high-latitude feedback mechanisms. A sediment core, collected from a small lake (radius ~100 m), was used to reconstruct the development of the lake and its catchment as well as vegetation and summer temperatures over the last 7100 calibrated years. A multi-proxy approach was taken including pollen and sedimentological analyses. Our data indicate a gradual replacement of open larch forests by tundra with scattered single trees as found today in the vicinity of the lake. An overall trend of cooling summer temperature from a ~2 °C warmer-than-present mid-Holocene summer temperatures until the establishment of modern conditions around 3000 years ago is reconstructed based on a regional pollen-climate transfer function. The inference of regional vegetation changes was compared to local changes in the lake's catchment. An initial small water depression occurred from 7100 to 6500 cal years BP. Afterwards, a small lake formed and deepened, probably due to thermokarst processes. Although the general trends of local and regional environmental change match, the lake catchment changes show higher variability. Furthermore, changes in the lake catchment slightly precede those in the regional vegetation. Both proxies highlight that marked environmental changes occurred in the Siberian forest-tundra ecotone over the course of the Holocene.