Pyrolysis kinetics of regional agro-industrial wastes using isoconversional methods Saffe Pinto, María Alejandra; Fernandez Brizuela, Anabel Alejandra; Echegaray, Marcelo Eduardo; Mazza, German Delfor; Rodriguez, Rosa Ana The thermochemical conversion, under inert atmosphere, at high heating rate of agro-industrial wastes was studied using thermogravimetric analysis. Two reaction mechanisms were supposed: (a) The thermal solid decomposition is carried out through a single reaction; or (b) this occurs through several independent parallel reactions based on its main components. Kinetic isoconversional methods were applied to both proposed mechanisms. The best fit was obtained for the single-reaction models. Nevertheless, to study the influence of pseudocomponent decomposition in the global process, the kinetic behavior of each of them was analyzed. The R2 and D3 models represent the thermal decomposition of biomass wastes and their pseudocomponents. The first model supposes that the reactions tend at first order, and the second assumes that the diffusion is the predominant phenomenon. In all cases, the model with the best fit for the cellulose decomposition is the same for the single global reaction model. The enthalpy variations are positive, indicating that the reactions are endothermic. The entropy variations have negative values, signifying that these processes are slow. The Gibbs free energy variations exhibited positive values, revealing that the total system energy increased at the approach of the reagents and the formation of the activated complex.

¿Reserva, puerto o ría?: Conflicto socioambiental en el estuario de Bahía Blanca, Argentina; Natural reserve, port or ría?: Socio-environmental conflict in the estuary of Bahia Blanca, Argentina Noceti, Maria Belen En el estuario de Bahía Blanca se superponen dinámicas de relación entre humanos y no humanos muy disímiles entre sí, dando cuenta de la constitución de schematas de praxis luchando por legitimarse y prevalecer unas sobre otras. Tal situación se observa en el devenir de conflictos socioambientales por el uso del estuario. El abordaje etnográfico posibilita la identificación en el sector de tres tipos de schematas: la ría, el puerto y la reserva. En cada una de ellas se pueden describir tipos de vinculación entre seres vivos, humanos y no humanos, a través de los que es posible delinear formas específicas de identificación/alteridad, clasificación y toponimia. Se propone además, que las disputas y conflictos derivados por la utilización de los recursos marítimo-costeros enmascaran a su vez relaciones asimétricas en la constitución de procesos sociopolíticos.; In the estuary of Bahía Blanca; different dynamics between humans and non humans overlap each other accounting for the constitution of schematas of praxis. Each one struggling for legitimacy and prevailing over the other. Such a situation is observed in the development of socio-environmental conflicts in the use of the estuary. An ethnographic approach enables the construction of three types of schematas in the area: the ría, the port and the natural reserve. In each one, forms of relationship between human and non-human beings are described; that delineate specific forms of identification / otherness, classification and toponym systems. It is also suggested that disputes and conflicts derived from the use of marine and coastal resources, in turn mask asymmetric relations in the constitution of social political processes.

A two-step mixed inpainting method with curvature-based anisotropy and spatial adaptivity Ibarrola, Francisco Javier; Spies, Ruben Daniel The image inpainting problem consists of restoring an image from a (possibly noisy) observation, in which data from one or more regions are missing. Several inpainting models to perform this task have been developed, and although some of them perform reasonably well in certain types of images, quite a few issues are yet to be sorted out. For instance, if the image is expected to be smooth, the inpainting can be made with very good results by means of a Bayesian approach and a maximum a posteriori computation [2]. For non-smooth images, however, such an approach is far from being satisfactory. Even though the introduction of anisotropy by prior smooth gradient inpainting to the latter methodology is known to produce satisfactory results for slim missing regions [2], the quality of the restoration decays as the occluded regions widen. On the other hand, Total Variation (TV) inpainting models based on high order PDE diffusion equations can be used whenever edge restoration is a priority. More recently, the introduction of spatially variant conductivity coefficients on these models, such as in the case of Curvature-Driven Diffusion (CDD) [4], has allowed inpainted images with well defined edges and enhanced object connectivity. The CDD approach, nonetheless, is not quite suitable wherever the image is smooth, as it tends to produce piecewise constant restorations. In this work we present a two-step inpainting process. The first step consists of using a CDD inpainting to build a pilot image from which to infer a-priori structural information on the image gradient. The second step is inpainting the image by minimizing a mixed spatially variant anisotropic functional, whose weight and penalization directions are based upon the aforementioned pilot image. Results are presented along with comparison measures in order to illustrate the performance of this inpainting method.

Políticas homosexuales en la Argentina reciente (1970-1990s); Homosexual policies in recent Argentina (1970-1990s) Theumer, Emmanuel Alejandro El siglo XX de Argentina estuvo signado por sucesivos golpes de Estado queafectaron decididamente la vida política, pero fueron también sus interregnos, los periodos de apertura democrática, los que facilitaron el impulso de organizaciones homosexuales,también feministas, tanto a inicios de la década de los años 70 como de la de los 80. Nos proponemos aquí analizar la emergencia de un conjunto de políticas sexuales, un despliegue escénico?disidente de la sexualidad, que tuvieron lugar bajo dicho periodo histórico: a inicios de los años 70, fundamentalmente a través de un puñado de microgrupos integrados al Frente de Liberación Homosexual (1971-1976) y, por segundo, la aperturademocrática de 1983, a través de organizaciones efímeras y otras con mayor persistencia, tal el Movimiento de Liberación Homosexual (1984-c. 1988) de la ciudad de Rosario y Comunidad de Homosexuales de Argentina (1984-) con sede en la ciudad de Buenos Aires.; The twentieth century of Argentina was marked by a collection of coups d’etat that decisively affected political life, but it was also the time intervals among them, the periods of democratic openness, those that in fact facilitated the promotion of homosexual organizations, also feminist, both at the beginning of the decade of the ‘70 as of the 1980s. We propose here to analyze the emergence of a set of sexual policies, a scenicdissident deployment of sexuality, that took place under this historical period: in the early 1970s, mainly through a handful of microgroups integrated to the Front Homosexual Liberation (1971-1976) and, secondly, the democratic opening of 1983, through ephemeral organizations and others with greater persistence, such as the Homosexual Liberation Movement (1984-c. 1988) of the city of Rosario and the Community of Homosexuales de Argentina (1984-) based in the city of Buenos Aires.

Estudios geoeléctricos de subsuelo sobre estructuras vinculadas a la Falla El Tigre, San Juan; Geoelectrical study on structures associated to El Tigre fault, San Juan Peri, Verónica Gisel; Fazzito, Sabrina Yesica; Bello Camilletti, Gonzalo; Rapalini, Augusto Ernesto; Cortés, José María La Falla El Tigre se ubica sobre el margen occidental de la Precordillera sanjuanina, la región con mayor actividad sismológica de Argentina. Es una falla regional de rumbo N-S de desplazamiento oblicuo con componente dextral y constituye una estructura muy singular por su buen grado de exposición y los significativos marcadores geomórficos de desplazamiento preservados. En la parte central de la Falla El Tigre se destacan estructuras con dirección ~NO-SE que controlan el acomodamiento de la deformación y que responden a estructuras del basamento. El presente trabajo expone dos perfiles geoeléctricos sobre lineamientos oblicuos y sobre estructuras secundarias asociadas. Los lineamientos están vinculados a fallas subverticales que afectan al basamento neógeno y que tendrían una cinemática de rumbo sinestral inferida por recientes estudios paleomagnéticos en rocas neógenas y depósitos pleistocenos y por comparación con estructuras homólogas de la Precordillera. Esta deformación sería pliocena a pleistocena temprana. En el bloque bajo oriental de la Falla del Tigre se identificaron lomadas escalonadas y sigmoidales que exponen basamento neógeno y depósitos pleistocenos y que están vinculadas a fallas subverticales que ascienden y flexuran el sustrato. En su conjunto, estas estructuras constituyen una faja de cizalla dextral limitada por la Falla El Tigre al oeste y por un frente oriental NNO-SSE al este y habrían estado activas hasta el Pleistoceno tardío. Las evidencias geofísicas y geológicas presentadas confirman la complejidad de la deformación por rotación de múltiples bloques menores asociada a la Falla El Tigre y la importancia de estructuras oblicuas que controlan la cinemática de la deformación.; The Precordillera Argentina is the region with the greatest seismological activity in the country. El Tigre fault extends through the western margin of the San Juan Precordillera and it is an N-S trend regional strike-slip fault with dextral heading component that constitutes a unique structure due to a good preservation of geomorphic displacement markers. The central part of the El Tigre fault shows several ~ NO-SE structures that seem to control the deformation related to accommodation in response to basement structures. This work presents two geoelectric profiles through oblique lineaments and on associated secondary structures. The lineaments related to subvertical faults affect the Neogene basement with no apparent tilt displacement and the kinematics was inferred by comparison with homologous structures of the Precordillera. This deformation would be Pliocene to early Pleistocene, according with recent paleomagnetic results in neogene and pleistocene rocks. Right-step sigmoidal folds at the eastern lower block of the El Tigre fault expose Neogene basement and Pleistocene deposits, due to an uplift and flexure of the substrate. The geoelectric profiles suggest that the folds are in response to subvertical faults activity. These structures are consistent with a dextral shear band bounded to the west and to the east by the El Tigre fault and a NNO-SSE fault, respectively. This deformation would be active until the late Pleistocene. The presented geophysical and geological evidences confirm the complexity of the deformation by rotation of multiple smaller blocks associated to the El Tigre fault and the importance of oblique structures that control the kinematics of the deformation.

Effect of body size and temperature on respiration of Galaxias maculatus (Pisces: Galaxiidae) Milano, Daniela; Vigliano, Pablo Horacio; Beauchamp, David Body mass and temperature are primary determinants of metabolic rate in ectothermic animals. Oxygen consumption of post-larval Galaxias maculatus was measured in respirometry trials under different temperatures (5–21 °C) and varying body masses (0.1–>1.5 g) spanning a relevant range of thermal conditions and sizes. Specific respiration rates (R in g O2 g−1 d−1) declined as a power function of body mass and increased exponentially with temperature and was expressed as: R = 0.0007 * W −0.31 * e 0.13 * T. The ability of this model to predict specific respiration rate was evaluated by comparing observed values with those predicted by the model. Our findings suggest that the respiration rate of G. maculatus is the result of multiple interactive processes (intrinsic and extrinsic factors) that modulate each other in ‘meta-mechanistic’ ways; this would help to explain the species’ ability to undergo the complex ontogenetic habitat shifts observed in the lakes of the Andean Patagonic range.

Identification of Trypanosoma cruzi Discrete Typing Units (DTUs) in Latin-American migrants in Barcelona (Spain) Abras, Alba; Gállego, Montserrat; Muñoz, Cármen; Juiz, Natalia Anahí; Ramirez Gomez, Juan Carlos; Cura, Carolina Inés; Tebar, Silvia; Fernández Arévalo, Ana; Pinazo, María Jesús; de la Torre, Leonardo; Posada, Elizabeth; Navarro, Ferran; Espinal, Paula; Ballart, Cristina; Portús, Montserrat; Gascón, Joaquim; Schijman, Alejandro Gabriel Trypanosoma cruzi, the causative agent of Chagas disease, is divided into six Discrete Typing Units (DTUs): TcI–TcVI. We aimed to identify T. cruzi DTUs in Latin-American migrants in the Barcelona area (Spain) and to assess different molecular typing approaches for the characterization of T. cruzi genotypes. Seventy-five peripheral blood samples were analyzed by two real-time PCR methods (qPCR) based on satellite DNA (SatDNA) and kinetoplastid DNA (kDNA). The 20 samples testing positive in both methods, all belonging to Bolivian individuals, were submitted to DTU characterization using two PCR-based flowcharts: multiplex qPCR using TaqMan probes (MTq-PCR), and conventional PCR. These samples were also studied by sequencing the SatDNA and classified as type I (TcI/III), type II (TcII/IV) and type I/II hybrid (TcV/VI). Ten out of the 20 samples gave positive results in the flowcharts: TcV (5 samples), TcII/V/VI (3) and mixed infections by TcV plus TcII (1) and TcV plus TcII/VI (1). By SatDNA sequencing, we classified the 20 samples, 19 as type I/II and one as type I. The most frequent DTU identified by both flowcharts, and suggested by SatDNA sequencing in the remaining samples with low parasitic loads, TcV, is common in Bolivia and predominant in peripheral blood. The mixed infection by TcV–TcII was detected for the first time simultaneously in Bolivian migrants. PCR-based flowcharts are very useful to characterize DTUs during acute infection. SatDNA sequence analysis cannot discriminate T. cruzi populations at the level of a single DTU but it enabled us to increase the number of characterized cases in chronically infected patients.

Weighted least squares solutions of the equation AXB - C = 0 Contino, Maximiliano; Giribet, Juan Ignacio; Maestripieri, Alejandra Laura Let H be a Hilbert space, L(H) the algebra of bounded linear operators on H and W ∈ L(H) a positive operator such that W^1/2 is in the p-Schatten class, for some 1 ≤ p < ∞. Given A,B ∈ L(H) with closed range and C ∈ L(H), we study the following weighted approximation problem: analyze the existence ofmin{ ||AXB − C||p,W , X ∈L(H)}, (0.1)where ||X ||p,W = ||W^1/2 X ||p . We also study the related operator approximation problem: analyze the existence ofmin {(AXB − C)*W (AXB − C), X ∈L(H)}, (0.2)where the order is the one induced in L(H) by the cone of positive operators. In this paper we prove that the existence of the minimum of (0.2) is equivalent to the existence of a solution of the normal equation A*W (AXB − C) = 0. We also give sufficient conditions for the existence of the minimum.

Análisis de la vigencia y aplicación de ley de educación sexual integral a diez años de su sanción; Analysis of the validity and implementation of sex education law to ten years after his publication Patierno, Nicolas; Perín, Giuliana Carolina En este artículo pretendemos analizar los debates vigentes en torno a la educación sexual en escuelas públicas secundarias, con particular atención a la aplicación de la Ley de Educación Sexual Integral N° 26.150, pasados diez años de su sanción. Para llevar a cabo dicho análisis partimos del supuesto que la Ley mencionada no aparecería de manera clara y explícita en las prácticas docentes cotidianas del nivel secundario. En esta línea, consideramos que la sanción de la ley y la información contenida en sus artículos no coincidirían con su aplicación. Acompañando esta hipótesis, consideramos que la sexualidad -interpretada como problemática social contemporánea-, se halla influenciada y mediada por vertiginosos cambios histórico-sociales que imposibilitan una definición ortodoxa e inmodificable capaz de esclarecer su abordaje metodológico. Tanto su indefinición, como su imprecisión teórica, dan cuenta de un espacio susceptible de interpretaciones ambiguas y precarias. La propuesta de análisis adopta un enfoque mixto, en el que se incluye un recorrido por autores claves, documentos oficiales asociados al campo de la educación sexual y el análisis de datos cuantitativos.; This article analyzes the current discussions on sex education in public high schools, with particular attention to the implementation of the Integral Sexual Education Law 26.150, after ten years of his publication. To perform this analysis, it is assumed that the aforementioned law would not appear clearly and explicitly in daily teaching practices at the secondary level. In this line, we believe that the enactment of the law and the information contained in its articles would not coincide with the implementation of it. Accompanying this hypothesis, we believe that sexuality, played as contemporaneous- social problems, it is influenced and mediated by dramatic historical and social changes that prevent an orthodox and unchanging definition can clarify its methodological approach. Both its vagueness, as its theoretical inaccuracy, realizes susceptible space of ambiguous and precarious interpretations. The proposed analysis adopts a mixed approach, which includes a tour of key authors, official documents related to the field of sexual education and analysis of quantitative data.

Magnetostratigraphy of the Rabot Formation, Upper Cretaceous, James Ross Basin, Antarctic Peninsula Milanese, Florencia Nidia; Olivero, Eduardo Bernardo; Kirschvink, Joseph L.; Rapalini, Augusto Ernesto Problems of endemism and diachronous extinctions make global correlation of coeval strata in the mid Campanian-Maastrichtian of the James Ross Basin problematic. To provide a more precise chronological framework, we present two magnetostratigraphies of Campanian strata from the Rabot Formation that crops out at Hamilton Norte (200 m thick) and Redonda Point (340 m thick) in James Ross Island. Sampled sections consist of poorly-consolidated, drab-colored fine sandstones and mudstones. Bulk susceptibility logs of both sections show a similar pattern of relatively low values at the lower and upper levels with significantly higher values at mid-levels that confirms the lithostratigraphic correlation between sections. Rock magnetic studies suggest that this change is not attributable to a ferrimagnetic fraction but to a paramagnetic contribution of presumed detrital origin. Stepwise thermal demagnetization showed dominant unblocking temperatures higher than 400 °C. Progressive hybrid low-temperature cycling, low-field AF and thermal demagnetization in a controlled N2 atmosphere, reveals a two-polarity characteristic component of possible primary origin. Rock magnetic experiments suggest that detrital titano-magnetite is the most likely remanence carrier. Anisotropy of magnetic susceptibility results show sedimentary fabrics, indicating that beds were not significantly buried or compacted. Magnetostratigraphies produced at each locality demonstrate a consistent change from reverse to normal polarity remanence in the middle of the sections. Biostratigraphic constraints identify this reversal as the C33r/C33n transition, indicating a 79.90 Ma depositional age for this level of the Rabot Formation. The remanence directions yield a mean whose corresponding paleopole is consistent with two recently obtained Upper Cretaceous reference paleopoles for the Antarctic Peninsula. Our data support the lack of tectonic rotation or oroclinal bending of this region since the Late Cretaceous.

Preface Spinedi, Eduardo Julio; Cardinali, Daniel Pedro; Gagliardino, Juan Jose In spite of the increased attention devoted to the literature and by health ministries, overweight and obesity prevalence continues to increase worldwide [1] . A systematic analysis performed in 2013 referred to the global burden of these conditions, and showed that more than 50% of the world’s 671 million obese people live in 10 countries: the United States, China, India, Russia, Brazil, Mexico, Egypt, Germany, Pakistan, and Indonesia [2] . Additionally, overweight/obesity has unhealthy outcomes such as diabetes, hypertension, and cancer [3] .

Helechos arborescentes en la Antártida Vera, Ezequiel Ignacio; Cesari, Silvia Nelida En este artículo se discute la presencia de los representantes del orden Cyatheales en la flora aptiana de la Formación Cerro Negro (Isla Livingston, Antártida), entre los que se incluyen cuatro taxones basados en petrificaciones de tallos, tres especies de frondes, y esporas aisladas. La presencia de esta considerable diversidad (representada además por numerosos especímenes) sugiere que el estrato arborescente no estaba restringido a las coníferas, sino que además era ocupado por los helechos. Además, considerando los requisitos ecológicos actuales de este grupo de helechos arborescentes, se sugieren condiciones climáticas relativamente benignas en la región hace 120 millones de años.

Ionic conductivity enhancement achieved by the incorporation of ZnO in a lithium tellurite glass Di Pratula, Pablo Emmanuel; Terny, Cintia Soledad; Sola, Mariela Edith; Frechero, Marisa Alejandra The reinforcement of the ionic conductivity in a lithium-vanadium-molybdenum tellurite glass is possible by modified with zinc oxide {0.7 [x ZnO (1 − x) Li2O] 0.3 [0.5 V2O5. 0.5 MoO3]. 2TeO2}. Structural features induced by zinc cation on the glassy matrix have a positive effect on the electrical behavior of the modified glass. The electrical response of the Zn/Li tellurite glass studied in the present work gives evidence that its ionic conductivity is improved due to the incorporation of small quantities of ZnO suggesting a potential solid ionic electrolyte useful in solid electrochemical devices.

Staphylococcus aureus nasal carriage in health care workers: First report from a major public hospital in Argentina; Portación nasal de Staphylococcus aureus en trabajadores de la salud: primer reporte en un hospital público en Argentina Boncompain, Carina Andrea; Suárez, Cristian Alejandro; Morbidoni, Héctor Ricardo Staphylococcus aureus es agente causal de numerosas infecciones en humanos, que pueden ser desde leves hasta graves, y circula tanto en la comunidad como en las instalaciones de los centros de salud. Los pacientes y los trabajadores de la salud pueden diseminar cepas durante los exámenes médicos de rutina o durante la hospitalización. El foco de este estudio fue determinar la tasa de portación nasal de S. aureus sensible o resistente a meticilina en trabajadores de la salud del Hospital Provincial del Centenario, un hospital público de atención primaria en Argentina. Se llevó a cabo un estudio transversal en 320 trabajadores de la salud (TS). Se tomaron hisopados nasales y se aislaron colonias presuntivas de S. aureus. La identidad de las bacterias y su resistencia a meticilina fueron confirmadas por amplificación de los genes nuc y mec. El análisis estadístico comprendió el test de la chi al cuadrado y el test de exactitud de Fisher. De 320 TS, 96 (30%) fueron portadores nasales de S. aureus, de los cuales 20 (6,3% del total) llevaban cepas de S. aureus resistentes a meticilina (SARM) y 76 (23,7% del total) eran portadores de cepas sensibles a meticilina (SASM). La portación entre los médicos fue del 30% y estuvo dentro de los niveles publicados; dentro del subgrupo del personal técnico la portación fue superior: 57%. Se detectaron resistencias acompañantes (64,6%; 62/96) a fluoroquinolonas (24%; 23/96), aminoglucósidos (13,5%; 13/96) o macrólidos (34,4%; 33/96). Todas las cepas fueron sensibles a vancomicina y solo el 3,1% (3/96), las 3 SASM, fueron resistentes a mupirocina. Este estudio, el primero en su tipo en Argentina y uno de los pocos hechos en América del Sur, remarca la relevancia de la portación nasal de SARM y SASM en el personal de atención de la salud y evidencia la necesidad de contar con recomendaciones consensuadas para el tamizaje regular de S. aureus, así como de estrategias de descolonización.; Staphylococcus aureus causes numerous mild to severe infections in humans, both in health facilities and in the community. Patients and health care workers (HCWs) may disseminate strains during regular medical examinations or hospitalization. The aim of this study was to determine the nasal carriage rate of methicillin-susceptible and methicillin-resistant S. aureus among health care workers at Hospital Provincial del Centenario, a public general hospital in Rosario, Argentina. A transversal study was conducted on 320 health care workers. Nasal swabs were taken and presumptive S. aureus colonies were isolated. Bacterial identity and methicillin resistance status were confirmed by amplification of the nuc and mec genes. Chi square test and Fisher exact test were used for statistical analysis. Of 320 HCWs, 96 (30%) were nasal carriers of S. aureus, 20 of whom (6.3%) carried methicillin-resistant S. aureus (MRSA) and 76 (23.7%) methicillin-susceptible S. aureus (MSSA). Carriage was within thepublished values for physicians (30%) and higher for technicians (57%). Accompanying resistance (62/96, 64.6%) was detected, including resistance to fluoroquinolones (23/96, 24%), aminoglucosides (13/96, 13.5%) or to macrolides (33/96, 34.4%). All the strains were susceptible to vancomycin whereas only 3.1% (3/96), all of them on MSSA strains, were resistant to mupirocin. This study is the first one of its kind in Argentina and one of the few performed in South America, to highlight the relevance of nasal carriage of MRSA and MSSA in health care personnel and brings to light the need for consensus recommendations for regular S. aureus carriage screening as well as for decolonization strategies.

Adaptación al español de la Escala de Ambiente Invalidante Infantil; Adaptation to the spanish language of the invalidating childhood environmental Puddington, Martin Miguel; Duthu, Florencia; Gagliesi, Pablo El ambiente invalidante es un concepto central del Modelo Biosocial de Marsha Linehan (1993). La Escala de Ambiente Invalidante Infantil (ICES) es un cuestionario diseñado específicamente para evaluar este constructo de manera retrospectiva. Se presenta la adaptación al español de esta escala, junto con datos sobre las cualidades psicométricas del instrumento.La escala exhibió una buena consistencia interna. Según el análisis factorialexploratorio, mostró una estructura de dos factores, diferenciando los ítems relacionados con la reacción negativa del padre hacia la expresión emocional del niño, de los que reflejan la respuesta de apoyo de los padres hacia el niño.Estos primeros ensayos muestran que esta adaptación del ICES es una prueba adecuada para evaluar el ambiente invalidante infantil en sujetos de habla hispana.; The invalidating environment is a central concept in Linehan’s Biosocial Theory. The Invalidating Childhood Environment Scale (ICES) is a questionnaire specifically designed to assess this construct retrospectively. We present a Spanish adaptation of the ICES, along with data about its’ psychometric properties. The instrument showed good internal consistency. An explorative factorial analysis revealed a 2 factor structure differentiating the items that assess the parental negative reaction towards the child emotional expression, from the items that reflect a positive and supportive parental behavior. These early trials show that this adaptation of the ICES is a proper instrument to assess the childhood invalidating environment in Spanish speaking population.

Limits to the universality of the concept of human rights: Social representations in the judicial system of international migrants as rights holders; Les limites de l’universalité des droits de l’homme: Représentations sociales de l’appareil judiciaire sur les migrants internationaux en tant que titulaires de droits; Limites da universalidade dos direitos humanos: Representações sociais e o sistema judicial sobre os migrantes internacionais como titulares de direitos; Límites a la universalidad de los derechos humanos: Representaciones sociales en el sistema judicial sobre los migrantes internacionales como titulares de derechos Gonzalez, Anahi Patricia En el presente artículo se aborda la cuestión de las representaciones sociales presentes en el sistema judicial del Área Metropolitana de Buenos Aires (AMBA) acerca de los DDHH de los migrantes internacionales llegados a la Argentina desde la mitad del siglo XX a la actualidad. Se analizan los resultados de una investigación de carácter cualitativo, en la que se efectuaron 50 entrevistas en profundidad a miembros del sistema judicial del AMBA donde pudieron evidenciarse- sin dejar de lado ciertos matices- discursos excluyentes que se alejan de una perspectiva universalista y respetuosa de los derechos de los migrantes. Para ello, se presentaron los resultados a partir de tres dimensiones de análisis: 1. Política migratoria anhelada, 2. Competencia entre nativos y migrantes en el acceso a derechos económicos y sociales y 3. Concepción de ciudadanía restringida.  ; O presente artigo aborda as representações sociais presentes no sistema judiciário da Área Metropolitana de Buenos Aires (AMBA), no que diz respeito aos direitos humanos dos migrantes internacionais vindos à Argentina desde meados do século XX até a atualidade. A partir de uma pesquisa de caráter qualitativo, que realizou cinquenta entrevistas minuciosas junto a membros do sistema judiciário da AMBA, se evidenciam discursos excludentes, distantes de uma perspectiva universalista e respeitosa aos direitos dos imigrantes. Ao examinar os resultados encontrados, são discutidas três dimensões de análises: a política migratória almejada, a competição entre nativos e migrantes no que tange ao acesso a direitos econômicos e sociais e, finalmente, a concepção de cidadania restringida.; The following article discusses the social representations present in the judicial system in the Metropolitan Area of Buenos Aires (MABA) in terms of the human rights of the internationalmigrants to have arrived in Argentina as of the mid twentieth century. By means of a qualitative study encompassing fifty in-depth interviews held with members of the MABA judicial system, exclusionary discourse emerged running against the universalist perspective that respects migrants’ rights. Upon further study of the results gathered, three lines of analysis are discussed: desired migration policies, competition between locals and migrants in accessing economic and social rights, and, finally, the concept of restricted citizenship.; Le présent article aborde les représentations sociales présentes au sein de l’appareil judiciaire de la Zone métropolitaine de Buenos Aires (AMBA) sur la question des droits humains des migrants internationaux arrivés en Argentine depuis le mitan du XXème siècle. Sur la base d’une recherche qualitative où cinquante entretiens en profondeur ont été menés à bien avec des membres de l’appareil judiciaire de l’AMBA, nous avons pu mettre en évidence des discours excluants contraires à la perspective universaliste et au respect des droits des migrants. L’étude des résultats obtenus a mis en perspective trois dimensions analytiques : la politique migratoire désirée, la concurrence entre natifs et migrants pour l’accès aux droits économiques et sociaux, et, finalement, une conception restreinte de la citoyenneté.

La ideología sobre lo agrario de los productores rurales bonaerenses (2013); The ideology about the agrarian of the farmers of Buenos Aires province (2013) Balsa, Juan Javier Este artículo estudia la ideología de los productores rurales de la provincia de Buenos Aires a través del análisis de una encuesta realizada en el año 2013. En particular, se procura conocer la eficacia interpelativa que tenían las distintas discursividades sobre lo agrario que predominaban en la esfera pública, observar el grado de coherencia ideológica que poseían los productores rurales, y determinar la existencia (o no) de un sentido de separación a la hora de identificar los intereses propios en relación con los del resto de los productores.; This article studies the ideology of the farmers of Buenos Aires province through the analysis of a survey made in 2013. Especially, it tries to know the interpelative efficacy that had different discursivities about the agrarian (than predominated in the public sphere), to observe the level of ideological coherence than had the farmers, and to establish the existence (or not) of a sense of separation upon the identification of their own interests in relation with the ones of the rest of the farmers.

La nación en la cancha: un diálogo comparativo entre los relatos nacionales argentinos y brasileros durante la Copa del mundo Brasil 2014 Cabrera Duran, Nicolás Eduardo En el presente trabajo buscaremos retomar el dialogo entre el fútbol y los nacionalismos desde una estrategia metodológica un tanto disímil en relación a nuestros antecedentes bibliográficos: pretendemos desplazarnos de la óptica naciocentrica. Para ello pondremos nuestro foco en los intercambios simbólicos dialogantes entre las narrativas nacionales construidas por los hinchas argentinos y los torcedores brasileros durante la Copa del Mundo Brasil 2014. El trabajo cuenta con dos apartados: en el primero intentaremos sistematizar algunas reflexiones pertinentes para pensar el fútbol y el mundial como terrenos simbólicos privilegiados donde leer la tensión local-global. En el segundo apartado nos adentramos al análisis de los cánticos desplegados entre los hinchas argentinos y los torcedores brasileros durante la Copa del Mundo Brasil 2014.

Middle Triassic trachytic lava flows associated with coeval dyke swarm in the North Patagonian Massif: A postorogenic magmatism related to extensional collapse of the Gondwanide orogen González, Santiago Nicolás; Greco, Gerson Alan; Sato, Ana Maria; Llambias, Eduardo Jorge; Stipp Basei, Miguel Angelo; González, Santiago Nicolás; Diaz, Pablo E. The Marifil Volcanic Complex is an extended volcanic and pyroclastic unit outcropping in the North Patagonia. It has been included in the Chon Aike large igneous province associated to the thermal anomaly of the Karoo plume. The Marifil Volcanic Complex is mainly composed of rhyolites, dacites, rhyodacites and minor trachytes and trachyandesites. The latter are common in the base of the unit. The upper acidic rocks have been dated between 192 Ma to 151 Ma (Early to Middle Jurassic) by K-Ar, Ar-Ar and Rb-Sr methods. On the other hand, the age of the mesosilicic rocks range from 221 Ma to 173 Ma (K-Ar whole rock ages).In this research, we revise the stratigraphic relations, geochemistry and petrography of the mesosilisic rocks from Marifil Volcanic Complex. Aditionally, a new U-Pb crystallization age of 247.22 ± 0.46 Ma was obtained for an trachytic lava flow that covers Permian granitoids and which is covered by rhyolitic ignimbrites. The mentioned mesosilisic rocks are chemically trachytes and trachyandesites and show subduction margin affinities. In the area, a Triassic trachyandesitic dyke swarm has been considered as an expression of Gondwanide postorogenic extension in the North Patagonian Massif.Basis on our new age data and considering the compositional and stratigraphic differences we separate the Triassic trachytic to trachyandesitic rocks from the Jurassic rhyolites and dacites. These two groups of rocks represent different geotectonic events in the Southwestern margin of Pangea.

Synthesis and characterization of a series of isoniazid hydrazones. Spectroscopic and theoretical study Ferraresi Curotto, Verónica; Echeverría, Gustavo Alberto; Piro, Oscar Enrique; Pis Diez, Reinaldo; Gonzalez Baro, Ana Cecilia A family of hydrazones of isoniazid and a group of hydroxybenzalaldehydes (vanillin, 5-bromovanillin, 5-chlorosalicylaldehyde and 5-bromosalicylaldehyde) were obtained and fully characterized. The results, including theoretical data, are comparatively analyzed along with the already reported hydrazone of o-vanillin. The crystal structures of three compounds were determined. The hydrazones obtained from halogenated aldehydes are isomorphic and chiral to each other. Structures are further stabilized by (pyr)NH+⋯Cl− and OwH⋯Cl− bonds. The vanillin hydrazone shows a conformer that differs from the previously reported. Neighboring molecules are linked to each other through OH⋯N(pyr) bonds, giving rise to a nearly planar polymeric structure. The conformational space was searched and geometries were optimized both in the gas phase and including solvent effects by DFT. Results are extended to describe the 5-bromovanillin hydrazone. FTIR, NMR and electronic spectra were measured and assigned with the help of computational calculations.