Apuntes para un nocau lírico (Reseña sobre) Gandolfi Herrero, Alcides (1970): Nocau lírico. Buenos Aires, Editorial Americana, pp.124

Fil: Dubin, Mariano. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

¡Me engañaste, me mentiste! La embajada persa a Atenas (Ar. Ach. 61-124) y sus implicaturas frente al público

Atendiendo a la relación establecida entre la comedia y los ámbitos político- legales que la circundan, se ha podido instituir un vínculo entre la ficción cómica y la realidad política de la Atenas clásica que se percibe fundamentalmente en las primeras comedias de Aristófanes. Dentro de Acarnienses podremos entonces determinar un nuevo punto de análisis si consideramos que en las breves declamaciones del persa se cifra uno de los recursos más notorios de la diplomacia estatal: la manipulación ante la asamblea del discurso de los embajadores de una nación por parte de la voz autorizada de la pólis receptora (Ammendola: 2001-2002). Será nuestro propósito abordar un costado diverso de esta escena definiendo su peso específico, aparentemente secundario, en la trama total de la obra. De ese modo nos interesará detectar la verdadera trascendencia del comportamiento del embajador persa respecto de los ciudadanos atenienses representados en la persona del viejo Diceópolis

Electrical properties of basalts of ODP Sites 124-768 and 124-770

Conductivity of 54 basalt samples from ODP Sites 768 and 770 was measured as a function of temperature and fluid salinity. Porosity was also measured for all samples, and cation exchange capacity was measured for 46 of the samples. Porosity measurements indicated that porosity is underestimated for basalts like these, unless one uses extensive drying at high vacuum. At salinities greater than 29 ppt, and throughout the range of salinity and temperatures likely in situ, sample conductivity (Co) is controlled by porosity (phi) according to the Archie relation Co = 0.22*Cw phi*1-3 (orFF = 4.5/f1.3), where Cw is conductivity of the pore fluids and FF = Cw/CO is the formation factor. At lower salinity, clay-surface conduction or microcrack conduction may dominate. We are unable to distinguish reliably between the two mechanisms, but we do detect their effects subtly at high salinity and strongly at low salinity.

Geochemistry of Neogene volcanic ashs in ODP Leg 124 holes

Mineralogical and geochemical analyses were performed on 40 ash layers of Pleistocene to late Miocene age, recovered during Leg 124 in the Celebes and Sulu Seas (Sites 767, 768, and 769). They provide information on alteration processes related to burial diagenesis. The zonal distribution of secondary volcanic products emphasizes a major diagenetic change, characterized by the complete replacement of volcanic glass by an authigenic smectite-phillipsite assemblage, in tephra layers dated at 3.5-4 Ma. This diagenetic "event" occurs simultaneously in the two basins, and, on the basis of isotopic data, under low-temperature conditions. It is independent of distinct sedimentation rates and related to a relative quiescence of on-land volcanic activity. This period suggests a more uniform paleooceanographic situation having tectonic significance, and probably reflects a kinetic and environmental control of diagenetic reactions.