Escenas de lectura en Margarita está linda la mar de Sergio Ramírez

Con un enfoque vinculado con el campo de la historia de la lectura, se analizan las escenas de lectura en Margarita está linda la mar (1998) del escritor nicaragüense Sergio Ramírez. Ese análisis permite visualizar ciertos modos de leer en la sociedad nicaragüense de la primera mitad del siglo XX. A partir de esta mirada, se muestra cómo la lectura constituye un principio constructivo de la novela misma, al tiempo que el tándem lectura / escritura confronta con los decires populares orales. Finalmente, a partir de la figura del maestro, se considerará la pertenencia social y cultural de las voces autorizadas para organizar los elementos de la cultura

La mujer de letras o la letraherida. Discursos y representaciones sobre la mujer escritora en el siglo XIX, de Pura Fernández y Marie-Linda Ortega (eds.)

Fil: Bonatto, Adriana Virginia. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

El servicio de armas de los habitantes de la campaña durante el Sitio de Buenos Aires. La Guardia de Luján, 1852-1853

El siguiente artículo analiza cómo operó el reclutamiento de hombres para el servicio de armas durante el levantamiento de Hilario Lagos y el sitio de la ciudad de Buenos Aires, de diciembre de 1852 a julio de 1853, en el partido de la Guardia de Luján (hoy Mercedes). Para ello, presta especial atención al rol de los jueces de paz y de las autoridades militares de la campaña, los instrumentos utilizados para hacer efectivo el control y organización de las milicias, así como los principios de resistencia existentes

Pleistocene and late Miocene Calcareous nannofossil biostratigraphy of ODP Hole 150-905A

Continental rise Site 905 yielded upper Miocene and Pliocene uniform hemipelagic mud (a contourite) from approximately 215 to 540 meters below seafloor. The nannofossil biostratigraphy of this interval was reexamined using closely spaced samples from core interiors. Additionally, total nannofossil abundances and dominant species and species group abundances were determined to evaluate the potential of this section for extracting sequence stratigraphic information. The data indicate that the putative hiatuses at the end of the late Pliocene (Zones NN17 and NN18) and in the early Pliocene (Zones NN13 and NN14) probably are condensed intervals, but the base of the late Miocene is almost certainly marked by an unconformity. Judging from carbonate content and sedimentation rate both, nannofossil abundance may be governed by carbonate dissolution or by siliciclastic dilution. Consequently, condensed sections cannot be identified by the abundance of pelagic component in the sediment alone, as is possible in equivalent age Gulf of Mexico sediments. Where nannofossil preservation is adequate in consecutive samples, as in the early Pliocene and latest late Miocene, total nannofossil abundance fluctuates regularly and with a periodicity of less than 105 yr, which suggests that dilution of the pelagic component occurred with a frequency probably related to astronomical forcing.

(Table 1) Biomass (as energy) of different elements of the planktonic community in the Equatorial Pacific in the 0-150 m layer

An analysis was made of composition and content of nutrients, salts, particulate and dissolved organic matter, and various plankton groups in a series of samples collected by a 140-liter sampling bottle to depth up to 150 m at 4 equatorial stations between 97° and 154°W. Large and small phytoplankton, bacteria (aggregated and dispersed), heterotrophic flagellates, infusorians, radiolarians, foraminifers, fine filter-feeders, small and large, mostly herbivorous copepods, cyclopoids, predatory calanoids, and other predators were investigated separately. Trophic relations between these elements are established from personal and published data, and rate of their metabolism and some other physiological parameters are determined. Such functional characteristics as extent of satisfaction of food requirements of organisms belonging to various trophic groups, intensity of trophic relations, balance between production and consumption by individual elements of the community, ecological efficiency, and net and specific production of the groups distinguished, of individual trophic levels, of total zooplankton, and of the community as a whole are calculated. Variations of these characteristics along the equator with decreasing upwelling intensity are examined and their possible causes and mechanisms are discussed.