943 resultados para Duration constante
Resumo:
El trabajo explora, desde los aportes de la crítica genética y literaria, la construcción del espacio poético y sus espacios creativos de escritura. Para ello se cuenta con manuscritos del poeta argentino Arturo Carrera, pertenecientes a su segunda obra édita, Momento de simetría [1973]. Partiendo de una referencia astronómica existente en el poemario se revisa lo dicho por la crítica literaria argentina sobre la obra del autor así como también la posibilidad de leer el mapa poético y sus manuscritos como imágenes estéticas en suspensión. Por este motivo, el trabajo cuenta además con un Anexo (en CD) con las imágenes digitales del Archivo Momento de simetría y sus correspondientes transcripciones, a fin de que el lector pueda ir y venir del texto a las imágenes -y viceversa- y construir dicho recorrido
Resumo:
Fil: Sosa, Emanuel. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.
Resumo:
Sexual segregation in habitat use occurs in a number of animal species, including southern elephant seals, where differences in migration localities and dive behaviour between sexes have been recorded. Due to the extreme sexual size dimorphism exhibited by southern elephant seals, it is unclear whether observed differences in dive behaviour are due to increased physiological capacity of males, compared to females, or differences in activity budgets and foraging behaviour. Here we use a mixed-effects modelling approach to investigate the effects of sex, size, age and individual variation on a number of dive parameters measured on southern elephant seals from Marion Island. Although individual variation accounted for substantial portions of total model variance for many response variables, differences in maximum and targeted dive depths were always influenced by sex, and only partly by body length. Conversely, dive durations were always influenced by body length, while sex was not identified as a significant influence. These results support hypotheses that physiological capability associated with body size is a limiting factor on dive durations. However, differences in vertical depth use appear to be the result of differences in forage selection between sexes, rather than a by-product of the size dimorphism displayed by this species. This provides further support for resource partitioning and possible avoidance of inter-sexual competition in southern elephant seals.