ABSTRACT The aim of this article is to analyze, within the framework of Discourse Analysis (Hodge & Kress, 1979; Martin & White, 2005) the first collection of textbooks developed for specific high school subjects in Argentina that incorporated Comprehensive Sexuality Education (CSE; ESI in spanish) as a distinctive feature. The Llaves más collection, published by Estación Mandioca, is the focus of our study, particularly the materials for the subjects Language and Literature and History in the first year of secondary education. Our aim is to investigate how CSE is integrated into the specific content of each discipline and what social representations about gender and sexuality are conveyed in these textbooks. To achieve this, in the first stage of the research, we analyze the ideational function of language in the syntactic-semantic dimension of the texts; and in a second stage, we examine the semantic-discursive dimension of the texts in order to analyze the identities that the speaker configures of themselves and their addressees, as well as the attitude they assume towards the different voices and discursive positions evoked.

RESUMEN En este articulo analizamos con herramientas del Análisis del Discurso (Hodge y Kress, 1993[1979]; Martin y White, 2005) la primera serie de libros de texto elaborados para materias específicas de nivel secundario en Argentina que incorporaron la Educación Sexual Integral como atributo distintivo: la serie Llaves más, de Estación Mandioca. En particular, nos centramos en los materiales de las asignaturas Lengua y Literatura e Historia de primer año de nivel secundario. Nuestro objetivo consiste en indagar cómo se integra la ESI a los contenidos específicos de cada disciplina y qué representaciones sociales se ponen en circulación sobre el género y la sexualidad en estos libros de texto. Para ello, en una primera etapa de la investigación, abordamos la dimensión sintáctico-semántica de los textos, en la que analizamos la función ideativa del lenguaje; y, en un segundo momento, abordamos la dimensión semántico-discursiva de los textos con el fin de analizar las imágenes que configura el locutor tanto de sí mismo como de sus destinatarios, así como también la actitud que asume frente a las diferentes voces y posicionamientos discursivos que trae a escena.

Abstract Human activities are increased in Antarctica during decades, primarily due to the logistic and tourism operations, which consequent negative impact on penguin populations, altering their physiological responses. Therefore, we aimed to assess the blood biochemistry and oxidant/antioxidant balance of Adélie penguins (Pygoscelis adeliae) inhabiting two selected colonies: Potter Peninsula, considered as a low impacted colony, and Esperanza/Hope Bay as a high impacted colony. The levels of calcium, uric acid, and fructosamine, showed significant high values (p<0.05) for the Potter Peninsula´s penguins. Besides, this population showed high levels of plasma protein oxidation and erythrocyte lipid peroxidation (p<0.005) while the Esperanza/Hope Bay population presented high levels of erythrocyte protein oxidation and plasma lipid peroxidation (p<0.005). The oxidative damage values were similar in the Potter Peninsula population and slightly lower in the Esperanza/Hope Bay penguins if the results were compared to previous reports. The enzymes superoxide dismutase and glutathione peroxidase had significantly (p<0.005) high activity in the Esperanza/Hope Bay population, which also showed high reduced glutathione levels. The glutathione S-transferase activity was significantly high (p<0.005) in the Potter Peninsula population. The obtained results might take into account for making decisions about management and protection plans for the different penguin nesting areas in Antarctica.