Modos del desvío de lo femenino en ciertos relatos de Alfonsina Storni y Nicolás Olivari; Feminine deviation in some short stories by Alfonsina Storni and Nicolás Olivari Diz, Tania Este artículo forma parte de una labor mayor en la que se analizaron los sentimientos que generó la normativización de las relaciones entre los géneros en las primeras décadas del siglo XX, en Argentina. En este marco, se analizarán los modos de resistencia a la domesticidad a través de la representación de los cuerpos femeninos en un cuento, “Cuca”, en algunas crónicas femeninas de Alfonsina Storni (1919-20) y en “La pierna de plomo” de Nicolás Olivari (1933). La hipótesis general es que, más allá de las diferencias y matices, ambos operan no por transgresión a la norma sino por un exceso fanático y obsesivo por ella y es la exacerbación de la norma la que genera desvíos: cuerpos que devienen animales, muñecas o fragmentos.; This article is part of a larger work in which the feelings that led to the standardization of gender relations in the early twentieth century in Argentina. In this context, this article resistance mode will be analyzed to domesticity through the representation of women’s bodies in a story, “Cuca”, in some female chronic of Alfonsina Storni (1919-1920) and “La pierna de plomo” of Nicolas Olivari (1933). The hypothesis from which the texts are analyzed is that, beyond the differences and nuances both operate not by transgression of the rule but by a fanatical and obsessive about her excess. The general idea is that the exacerbation of the standard is what generates monsters: bodies become animals, dolls or fragments.

El Fausto y la opción queer en El tercer Fausto de Salvador Novo Saxe, Facundo Nazareno Una interpretación queer del tema faústico en Goethe y las proyecciones "disidentes" del mismo nos puede servir de herramienta para iluminar textos culturales tradicionalmente heteronormativizados. El canon tradicional se construye sobre la heteronormatividad, pero las lecturas diversificadoras de la tradición establecida pueden acercarnos a visiones queer presentes en obras poco exploradas desde esta perspectiva.

Desigualdad y espacio urbano: las condiciones objetivas de las clases sociales en el gran Córdoba Capdevielle, Julieta María; Giovine, Manuel Alejandro Con este trabajo nos proponemos, en primer lugar, dar cuentas de las principales desigualdades presentes en la ciudad de Córdoba. Para ello nos valemos del espacio social cordobés, tomando como referencia la Encuesta Permanente de Hogar (EPH) en el tercer trimestre de 2003 y 2013. De este modo, pretendemos caracterizar la multiplicidad de recursos en juego que configuran a ciertas clases como dominantes y, por oposición relacional, a otras como dominadas. La construcción del espacio social nos permite, entonces, comprender la composición y características de las clases dominantes y en qué medida se distancian y diferencian del resto de las clases sociales. En segundo lugar, analizamos las formas diferenciales de apropiación de la ciudad que ponen en juego las clases dominantes. Con ello, buscamos aportar a la explicación de las relaciones y procesos territoriales existentes en el espacio urbano cordobés a partir del análisis de una de las formas predominantes de producción y reproducción del hábitat urbano: la de las clases dominantes.; With this work we propose, first, to account for the major inequalities in the city of Córdoba. To do this we use the Cordoba social space constructed by reference to the Permanent Household Survey (EPH) in the third quarter of 2003 and 2011. Thus, we intend to characterize the multiplicity of resources involved shaping certain key classes, and relational opposition, others as dominated in that space. The construction of social space will allow us then to understand the composition and characteristics of the dominant classes inside and how much distance themselves and differdominated classes. Second, we analyze the differential forms of appropriation of the city that put key classes. So, through this article we seek to contribute to the explanation of relationships and processes in the existing territorial Cordovan urban space from the analysis of one of the predominant forms of production and reproduction of urban habitat: dominant classes.

El estudio de la Identidad en las Relaciones Internacionales: el constructivismo como “solución” teórica temporal; A study on Identity in International Relationships. Constructivism as temporal theoretical “solution”; O estudo da Identidade nas Relações Internacionais. O Construtivismo como “solução” teórica temporal Pereyra Doval, María Gisela El objetivo principal de este trabajo es indagar sobre el estudio de la identidad en la disciplina de las relaciones internacionales. De esta forma, se revisarán brevemente las teorías realista, liberal y constructivista, ahondando posteriormente en el constructivismo que es la corriente más pertinente.; The main objective of this paper is to inquire about the study of identity in international relations’ discipline. Thus, will be reviewed briefly the realism, liberalism and constructivism, then delving into constructivism which is the most relevant theory in this case.; O objetivo principal deste trabalho é indagar sobre o estudo da identidade na disciplina das relações internacionais. Desta forma, se revisarão brevemente as teorias: Realista, Liberal e Construtivista, aprofundando posteriormente no Construtivismo que é a corrente mais pertinente.

Elecciones y prácticas electorales en Tucumán-Argentina 1870-1880; Elections and electoral practices in Tucumán-Argentina 1870-1880; Elections et pratiques électorales à Tucumán-Argentina 1870-1880 Bravo, Maria Celia El objetivo de este artículo es analizar la normativa institucional y la dinámica política de la provincia de Tucumán (Argentina) durante la década de 1870, en el marco de las tensiones derivadas de la conformación del Estado argentino. El artículo está centrado en el análisis de las prácticas electorales de los clubes y comités de la provincia de Tucumán y sus relaciones "hacia abajo" con los sectores populares, lo que no implica desconocer el rol central que desempeñó el Estado provincial y nacional, no sólo como productor de la normativa electoral, sino también como actor que participaba activamente en las elecciones. Otro aspecto del trabajo explora el funcionamiento de los clubes y comités y sus relaciones con los sectores populares, que generalmente se verificaron de arriba hacia abajo, a través de intermediarios (capataces, jueces y comisarios de campaña), en una relación que la historiografía política ha calificado como pasiva y cuyo principal propósito era mejorar la eficacia de las redes clientelares construidas. Estos aspectos nos permiten apreciar cómo en 1870 la incorporación de la dirigencia de la provincia de Tucumán a un orden político nacional permitió configurar una dinámica de estabilidad institucional, fundada en el respeto de las normas constitucionales que constituyeron la fuente principal de legitimidad del sistema.; The objective of this study is to analyze the institutional normativity and political dynamics of the province of Tucumán (Argentina) during the decade of 1870, in the context of the tensions derived from the conformation of the Argentine State. This study in the field of political history is centered in the analysis of the electoral practices of clubs and committees in the province of Tucumán and their "condescending" relations with working class sectors; without ignoring the central role achieved by the provincial and national State as producer of electoral normativity, as well as a principal actor in the elections. Another aspect of the work involves exploring the functioning of the clubs and committees and their relation with working class sectors, which were generally verified from a "top to bottom" perspective, through intermediaries (overseers, judges and campaign managers) in a relationship that political historiography has identified as passive, and whose principal goal was improving the efficacy of previously constructed networks of patronage. These elements allow an appreciation of the way in which in 1870, the incoporation of the leadership of the province of Tucuman into the national political order allowed for the configuration of a dynamic of institutional stability, founded on respect for constitutional norms that constituted the system´s main source of legitimacy.; L’objectif de cet article est d’analyser les normes et les processus politiques de la province de Tucumán (Argentine) pendant la décennie 1870, dans le cadre des tensions découlant de la conformation de l’État argentin. L’article est axé sur l’analyse des pratiques électorales des clubs et des comités de la province de Tucumán, ainsi que sur les relations que ceux-ci entretenaient avec les secteurs populaires, ce qui n’implique pas la méconnaissance du rôle central qui a joué l’État provincial et national, non seulement comme producteur des règlements électoraux, mais aussi comme acteur dynamique des élections. Un autre aspect du travail consiste à explorer le fonctionnement des clubs et des comités et leurs relations avec les secteurs populaires à travers des intermédiaires (contremaîtres, juges et commissaires de campagne), dans une relation qualifié par l’historiographie politique comme passive et dont le principal objectif était d’améliorer l’efficacité des réseaux clientélaires. Ces aspects nous permettent d’apprécier comment l’intégration des dirigeants de la province de Tucumán à l’ordre politique national en 1870, a permis un équilibre institutionnel, fondé sur le respect des normes constitutionnelles qui constituaient la principale source de légitimité du système.

Distribution, Sources, and Potential Ecotoxicological Risk of Polycyclic Aromatic Hydrocarbons in Surface Sediments from Bahía Blanca Estuary, Argentina Oliva, Ana Laura; Quintas, Pamela Yanina; la Colla, Noelia Soledad; Arias, Andres Hugo; Marcovecchio, Jorge Eduardo Thirty-four surface sediment samples were collected from Bahía Blanca Estuary, Argentina, to evaluate polycyclic aromatic hydrocarbon (PAH) contamination and ecotoxicity risk by applying sediment-quality guidelines (SQGs) and toxic equivalent factors (TEQ). Total concentrations of 17 parent PAHs, including the 16 United States Environmental Protection Agency priority PAHs, were measured using gas chromatography–mass spectrometry, and their levels ranged from 19.7 to 30,054.5 ng/g dry weight. The greatest values were found near the urban/industrial core and decreasing as the distance from that site increased. Molecular ratios determined mixed sources of PAHs with a slight imposition of pyrolitic over the petrogenic inputs. The ecotoxicological evaluation, based on the SQG model, showed that some of the individual PAHs were in excess of the effects range low (ERL) and the effects range median’s threshold; then, predicted occasional (ERL) and frequent adverse effects over the surrounding biota at the area of study were determined. Total PAH levels were expressed as benzo-a-pyrene TEQ and compared with literature data.

Crédito en el consumo y el comercio en perspectiva histórica: Brevísimo recorrido por el largo plazo Wasserman, Martín Leandro Ezequiel El rol del interés como criterio de asignación de los recursos crediticios tiene un lugar histórico, que puede sopesarse atinadamente mediante una perspectiva de largo plazo. Inherente a los mecanismos mercantiles y a las señales que el mercado ofrece a los actores para orientar su proceder económico en contextos impersonales, la tasa de interés como expresión de la lógica mercantil en el terreno financiero ha encontrado alternativas, regulaciones y restricciones institucionales en ese largo plazo, dando cuenta de la existencia de mecanismos externos a la lógica del mercado como modo de asignar crédito en el consumo y el pequeño comercio. Se ofrece en este artículo una sucinta referencia introductoria a casos emblemáticos de los dos siglos precedentes (desde el siglo XIX), para remitir entonces al lector a los orígenes mismos de la sociedad bonaerense y al modo en que esa temprana economía de Antiguo Régimen asignaba crédito para el consumo en el comercio menudo local (siglos XVII-XVIII). En lugar de intentar ofrecer un historial cuantitativo de los fondos acreditados para el consumo por diferentes canales, se intentará ofrecer aquí, a través de un breve recorrido sobre puntos nodales de la historia rioplatense y argentina, una breve referencia cualitativa sobre la presencia e injerencia de mecanismos institucionales, relacionales y, en suma, extra-mercantiles, en los engranajes crediticios destinados al consumo.

Entre la violencia política y la institucionalización provincial: "La revolución de los Posse" en Tucumán, 1856 Macías, Flavia Julieta; Navajas, Maria José El objetivo de este trabajo es analizar el papel de los levantamientos armados en el proceso de institucionalización política desarrollado en Tucumán, luego de Caseros (1852). Este estudio se lleva a cabo a partir del examen de una rebelión cívico-militar conocida como La Revolución de los Posse ocurrida luego de la elección de Anselmo Rojo como nuevo gobernador provincial, en abril de 1856. Se exploran, en particular, tres cuestiones centrales: por una parte, la vinculación entre la insurrección cívico militar y las fricciones existentes entre los diferentes círculos del partido liberal tucumano. Por otra, la participación de las milicias departamentales, de sus Comandantes y de la Guardia Nacional en el mencionado levantamiento armado, prestándose especial atención a la relación entre los conflictos intra-liberales y las fricciones entre los Comandantes locales. Por último, se examina la organización y ejecución de la rebelión, la represión gubernamental y el juicio penal aplicado a sus protagonistas.; The aim of this work is to analyze the role of civic rebellions in the process of institutionalization of Tucumán, after Caseros (1852). In this case, special attention will be paid to a civic revolt known as La Revolución de los Posse which took place after the election of Anselmo Rojo as governor, in April 1856. In order to examine the rebellion, this work studies the relationship between liberal political party internal conflicts, the political and military role of local militias and their leaders (Comandantes militares), and the organization of the revolt. In addition, this research focuses on the suppression of that rebellion and the subsequent trial of the insurgents.

Rheological behaviorandbondingperformanceofanalkalinesoy proteinsuspension Bacigalupe, Alejandro; Poliszuk, Andrea K.; Eisenberg, Patricia; Escobar, Mariano Martin The goal of this work is to study the rheological properties of based-modified soy protein concentrate (SPC) adhesives and the relationship between viscoelastic properties and bonding performance. Chemical modification of SPC with sodium hydroxide was made to evaluate the effect of alkali on the viscoelastic properties. Viscosity and solubility depends directly of the 3D structure and the isoelectric point (pI) of the protein. Results show that viscosity is strongly pH dependant due to the protein unfolding. Solubility profiles exhibit the typical U-shaped curve, being higher on either side of isoelectric point. Fourier transformed infrared analysis was used to analyze Amide I (1720-1600 cm-1) and Amide III (1400-1200cm-1) band patterns which reflect the different secondary structures in proteins. The intensity of the band at 1250 cm-1 increases with respect to that at 1235 cm-1 for higher pH values. This could be associated with the destruction, at least partially, of the β-sheet structure. Bonding performance was measured in dry conditions and the wetting properties were analyzed by scanning electron microscopy. The bonding performance improves when the SPC is stabilized at pH 12 due to the protein unfolding, revealing a strong interaction between the secondary structure and the wood surface. As part of an ongoing project it was concluded that alkali modification is a suitable procedure to modify a protein suspension, improving application conditions and mechanical properties of bioadhesives of a semistructural type.

Circuitos de consagración académica: las revistas en ciencias sociales y humanas de Argentina; Segmented circuits of academic recognition: the journals of social sciences and humanities in Argentina Beigel, Maria Fernanda; Salatino, Javier Maximiliano En otros estudios, hemos analizado cómo la "periferialidad" científica ha devenido en un fenómeno cada vez complejo, que no se restringe a una dinámica espacial-nacional y mal puede explicarse con el concepto de "imperialismo académico". El Sistema Académico Mundial se fue estructurando en circuitos, a través de un triple principio de jerarquización, construido históricamente en la intersección de la institución de origen, la lengua y la disciplina. Así, se fue jerarquizando el circuito autodenominado "mainstream", sobre la base de la diferenciación entre científicos internacionalizados e investigadores restringidos a circuitos nacionales o "marginales". En este trabajo, nos enfocamos en el universo de revistas de ciencias sociales y humanas en la Argentina con el fin de profundizar el estudio de la dinámica disciplinar de ese principio de jerarquización. En la primera parte, proponemos una clasificación de circuitos de circulación de acuerdo con su poder de consagración académica, para ir más allá de una mera medición de "visibilidad". Luego, desarrollamos un análisis de la base de datos que hemos construido con todas las revistas argentinas para determinar en qué circuitos circula ese conocimiento. Observamos, en particular, un circuito local muy fuerte, con poca o nula repercusión internacional, constituido por revistas editadas en papel, sin indexación y con una distribución restringida.; In other studies we have analysed to which extent scientific “peripherality” has become an increasingly complex phenomenon that is not restricted to national dynamics and cannot be explained with the concept of “academic imperialism”. The World Academic System was structured in the last four decades through a triple principle of hierarchy that created segmented circuits, historically constructed at the intersection of the institution of origin, language and discipline. The so-called “mainstream” circuit was based on the distinction between internationalized scientists and researchers restricted to domestic or “marginal” circuits. In this paper, we focus on the world of social science journals in Argentina in order to deepen our insight on the disciplinar specificity of that principle of hierarchy. In the first part, we describe the circuits according with their power of “international” recognition, in order to go beyond a mere measurement of “visibility”. Then, we develop an analysis of the database that we have built with the universe of Argentine journals to determine how this knowledge circulates. We observe, particularly, a strong domestic circuit, with little or none international impact, consisting of non- indexed journals published only in paper, resulting in a very restricted distribution.

Contexto productivo argentino: El caso de los sistemas de iluminación natural Ferron, Leandro Martin El presente trabajo expone la problemática de la fabricación de Sistemas para el aprovechamiento de la Iluminación Natural en el entorno la producción industrial a nivel regional en la República Argentina. Se presenta una síntesis de las políticas implementadas sobre el sector productivo y su relación con el ámbito de investigación estatal. Se elabora una clasificación de los mencionados sistemas y analizan los resultados de entrevistas a los responsables de producción de talleres regionales. El aporte más relevante es el de verificar la factibilidad de producción regional de sistemas de iluminación natural basada en las capacidades tecnológicas de la industria, tendientes al ahorro energético destinado a iluminación en edificios comerciales y residenciales.; Automatic pitch recognition provides mechanisms for recognizing notes played by musical instruments. This paper explains how to embedd a pitch recognition algorithm in a project using the C implementation of SWIPEP. The chosen project is a memory game in which user has to listen to a sequence of notes and play them back to the computer using a soprano recorder flute. Additionally we explain the basic concepts for understanding the acoustic phenomena involved. This paper was written for all students with basic programming knowledge who want to incorporate sound processing to their projects.

Resistance of functional Lactobacillus plantarum strains against food stress conditions Ferrando, Verónica Andrea; Quiberoni, Andrea del Lujan; Reinheimer, Jorge Alberto; Suárez, Viviana Beatriz The survival of three Lactobacillus plantarum strains (Lp 790, Lp 813 and Lp 998) with functional properties was studied taking into account their resistance to thermal, osmotic and oxidative stress factors. Stress treatments applied were: 52°C-15min (Phosphate Buffer pH 7, thermal shock), H2O2 0.1% (p/v) - 30min (oxidative shock) and NaCl aqueous solution at 17, 25 and 30% (p/v) (room temperature - 1h, osmotic shock). The osmotic stress was also evaluated on cell growth in MRS broth added of 2, 4, 6, 8 and 10% (p/v) of NaCl, during 20h at 30°C. The cell thermal adaptation was performed in MRS broth, selecting 45°C for 30min as final conditions for all strains. Two strains (Lp 813 and Lp 998) showed, in general, similar behaviour against the three stress factors, being clearly more resistant than Lp 790. An evident difference in growth kinetics in presence of NaCl was observed between Lp 998 and Lp 813, Lp998 showing a higher optical density (OD570nm) than Lp 813 at the end of the assay. Selected thermal adaptation improved by 2 log orders the thermal resistance of both strains, but cell growth in presence of NaCl was enhanced only in Lp 813. Oxidative resistance was not affected with this thermal pre-treatment. These results demonstrate the relevance of cell technological resistance when selecting presumptive "probiotic" cultures, since different stress factors might considerably affect viability or/and performance of the strains. The incidence of stress conditions on functional properties of the strains used in this work are currently under research in our group.

The peril of PCR inhibitors in environmental samples: the case of Didymosphenia geminata Jones, Leandro Roberto; Uyua, Noelia Mariel; Manrique, Julieta Marina Since the introduction of polymerase chain reaction (PCR) biodiversity study has been significantly influenced by the chance of generating unprecedented amounts of molecular data. Although it is a robust technique, those applications requiring high sensitivity and reproducibility, that is PCR detection and quantitative PCR, can be negatively affected by PCR inhibition. This is particularly challenging for diverse kinds of samples included the environmental ones, which usually contain complex mixtures of a variety of inhibitory substances. The problem of PCR inhibition can be overcome, or ameliorated, by implementing adequate protocols of nucleic acids purification, internal controls and modern analytical approaches focused on PCR kinetics. Herein, we remark these procedures and describe the general techniques that can be used to optimize DNA extraction protocols for PCR applications. In addition, we show that PCR inhibition might have negative consequences in molecular studies of Didymosphenia geminata, an invasive microalga that have recently developed massive blooms in temperate regions worldwide, and provide general guidelines for dealing with this problem.

Pressurized hot water extraction of anthraquinones from Heterophyllaea pustulata Hook f. (Rubiaceae) Barrera Vazquez, Maria Fernanda; Comini, Laura Raquel; Milanesio, Juan Manuel; Núñez Montoya, Susana Carolina; Cabrera, Jose Luis; Bottini, Susana Beatriz; Martini, Raquel Evangelina Heterophyllaea Pustulata Hook. f. (Rubiaceae), commonly known as "cegadera", is a phototoxic native plant from South America, containing anthraquinones with important antibacterial, antiviral and anticancer activity. In this work, pressurized hot water extraction (PHWE) was applied to extract anthraquinones from the stems of the plant. The effect of temperature, pressure and water flow rate on the extraction yield of four anthraquinones (soranjidiol, rubiadin, rubiadin 1-methyl ether and 2-hydroxy-3-methyl anthraquinone) was studied. Within the experimental range explored, the optimum extraction temperature was 170 ºC. Lower yields were obtained at higher temperatures, apparently due to the thermal decomposition of these anthraquinones. The experimental extraction curves were fitted with three models: the thermodynamic partitioning and the one-site and two-site kinetic models.

The social value of biodiversity and ecosystem services from the perspectives of different social actors Caceres, Daniel Mario; Tapella, Esteban; Quétier, Fabien; Díaz, Sandra Myrna A vast literature is now available on ecosystem services (ES), their potential as a tool for analyzing intertwined processes of ecological and social change, and their monetary valuation. Much less is known about the social value of different ES for different social actors (SA), and their links with specific components of biodiversity. We unpack the social aspects of an interdisciplinary and multi-SA methodology that allows us to assess how different SA perceive and value different ES, and how they associate them with different components of biodiversity, ecological attributes, and ecosystem types. We apply the methodology to a study area in the Gran Chaco region of South America, presenting original social-ecological information from the field. Being affected by the rapid and widespread expansion of agribusiness over the woody ecosystems of southern South America, this location provides a policy-relevant context in which to test our approach. We identified six major ecosystem types and five relevant SA. We carried out 163 individual in-depth interviews and ran seven single-actor focus groups. We identified 116 ES, which were then aggregated into 22 more general categories. Although all SA perceived all ecosystem types as multifunctional, they showed markedly different perceptions of and interests in the ES provided by them. Subsistence farmers and extension officers valued a large number of ES primarily provided by the most pristine ecosystems. Members of conservation agencies and policymakers also identified a wide range of ES, spanning all ecosystem types. However, large farmers and cattle ranchers recognized a dependency on only a small number of ES. Therefore, the rapid expansion of agribusiness occurring in this region is a threat to a large number of ES considered valuable by a wide range of SA. Without necessarily having to resort to monetary valuation, our methodology provides a rigorous quantitative-qualitative way to compare the perspective of different SA, including scientists, and is thus useful for social-ecological assessment and action.

Análisis morfológico del complejo volcánico La Hoyada puna austral mediante la aplicación de modelos de elevación digital; Using digital elevation models for morphological analysis of La Hoyada Volcanic Complex Bustos, Emilce; Arnosio, José Marcelo; Norini, Gianluca Las formas volcánicas resultan del balance de procesos constructivos y destructivos que afectan a los edificios volcánicos, por lo tanto el estudio de los rasgos volcánicos contribuye al entendimiento de la evolución del volcanismo de una zona. El Complejo Volcánico La Hoyada (Mioceno superior-Plioceno) se encuentra en el flanco oriental de la cordillera de San Buenaventura, en la provincia de Catamarca, Argentina. Esta contribución presenta una aplicación de modelos de elevación digital para el análisis morfológico del Complejo Volcánico La Hoyada, con el objetivo de identificar y evaluar las formas volcánicas de la región, para entender la evolución de este complejo volcánico antiguo con respecto a las manifestaciones volcánicas de la zona. El análisis morfológico se realizó usando los modelos de elevación digital ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) y SRTM (Shuttle Radar Topographic Mission), además de la evaluación de imágenes SPOT. Se realizaron distintos productos derivados de los modelos de elevación digital para llevar a cabo la identificación de morfologías areales. A través del análisis de los datos se identificaron 6 dominios morfológicos, cada uno representa un volcán individual de este Complejo. La actividad tectónica de la Puna Austral y el volcanismo moderno de la zona son los factores responsables de la destrucción de estos edificios volcánicos. Los rasgos volcánicos están mejor preservados hacia el norte del complejo, por lo tanto el grado de conservación podría indicar una migración de la evolución del volcanismo de sur a norte. Esta metodología constituye una herramienta fundamental para comprender la evolución volcánica de complejos volcánicos erodados de larga duración.; Volcanoes´ shapes result from constructional and destructional events; consequently, the study of volcanic features gives insight into the volcanic evolution. La Hoyada Volcanic Complex (Upper Miocene- Pliocene) is located in the eastern flank of San Buenaventura ridge, in Catamarca, Argentina. This study shows an application of digital elevation models for the volcanic area La Hoyada. The aim of this study is to examine the volcanic landforms because volcanic feature understanding of La Hoyada Volcanic Complex is an important tool for unravelling the evolution of this ancient and eroded volcanic complex. Morphological analysis of La Hoyada was performed using ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) and SRTM (Shuttle Radar Topographic Mission) Digital Elevation Models. The morphological evaluation was complemented by using high resolution images SPOT. Several products were derived from both Digital Elevation Models to identify areal morphologies. Through the evaluation of Digital Elevation Models derived data, as much as 6 morphological domains can be recognized each one representing a single volcano.Tectonic activity and modern volcanism in this area are responsible for the destruction of the volcanic edifices of La Hoyada. The partially conserved volcanic features are more distinguishable towards the north; hence, the grade of preservation could indicate that the evolution of this volcanic center was from south to north. This methodology provides a powerful tool for understanding the volcanic evolution of eroded long-lived volcanic complexes.

Plant identification based on leaf midrib cross-section images using fractal descriptors Silva, Núbia Rosa Da; Florindo, João Batista; Gómez, María Cecilia; Rossatto, Davi Rodrigo; Kolb, Rosana Marta; Bruno, Odemir Martinez The correct identification of plants is a common necessity not only to researchers but also to the lay public. Recently, computational methods have been employed to facilitate this task, however, there are few studies front of the wide diversity of plants occurring in the world. This study proposes to analyse images obtained from cross-sections of leaf midrib using fractal descriptors. These descriptors are obtained from the fractal dimension of the object computed at a range of scales. In this way, they provide rich information regarding the spatial distribution of the analysed structure and, as a consequence, they measure the multiscale morphology of the object of interest. In Biology, such morphology is of great importance because it is related to evolutionary aspects and is successfully employed to characterize and discriminate among different biological structures. Here, the fractal descriptors are used to identify the species of plants based on the image of their leaves. A large number of samples are examined, being 606 leaf samples of 50 species from Brazilian flora. The results are compared to other imaging methods in the literature and demonstrate that fractal descriptors are precise and reliable in the taxonomic process of plant species identification.

Munroa argentina, a Grass of the South American Transition Zone, Survived the Andean Uplift, Aridification and Glaciations of the Quaternary Amarilla, Leonardo; Anton, Ana Maria Ramona; Chiapella, Jorge Oscar; Manifesto, María; Angulo, Diego F.; Sosa, Victoria The South American Transition Zone (SATZ) is a biogeographic area in which not only orogeny (Andes uplift) and climate events (aridification) since the mid-Miocene, but also Quaternary glaciation cycles had an important impact on the evolutionary history of the local flora. To study this effect, we selected Munroa argentina, an annual grass distributed in the biogeographic provinces of Puna, Prepuna and Monte. We collected 152 individuals from 20 localities throughout the species? range, ran genetic and demographic analyses, and applied ecological niche modeling. Phylogenetic and population genetic analyses based on cpDNA and AFLP data identified three phylogroups that correspond to the previously identified subregions within the SATZ. Molecular dating suggests that M. argentina has inhabited the SATZ since approximately 3.4 (4.2?1.2) Ma and paleomodels predict suitable climate in these areas during the Interglacial period and the Last Glacial Maximum. We conclude that the current distribution of M. argentina resulted from the fragmentation of its once continuous range and that climate oscillations promoted ecological differences that favored isolation by creating habitat discontinuity.

Draft genome sequence of Inquilinus limosus strain MP06, a multidrug-resistant clinical isolate Pino, Marylú; Di Conza, José Alejandro; Gutkind, Gabriel Osvaldo The bacterium, Inquilinus limosus, with its remarkable antimicrobial multiresistant profile, has increasingly been isolated in cystic fibrosis patients. We report draft genome sequence of a strain MP06, which is of considerable interest in elucidating the associated mechanisms of antibiotic resistance in this bacterium and for an insight about its persistence in airways of these patients.

Sex-specific recombination maps for individual macrochromosomes in the Japanese quail (Coturnix japonica) del Priore, Lucía; Pigozzi, Maria Ines Meiotic recombination in the Japanese quail was directly studied by immunolocalization of mutL homolog 1 (MLH1), a mismatch repair protein of mature recombination nodules. In total, 15,862 crossovers were scored along the autosomal synaptonemal complexes in 308 meiotic nuclei from males and females. Crossover frequencies calculated from MLH1 foci show wide similitude between males and females with slightly higher number of foci in females. From this analysis, we predict that the sex-averaged map length of the Japanese quail is 2580 cM, with a genome-wide recombination rate of 1.9 cM/Mb. MLH1 focus mapping along the six largest bivalents showed few intersex differences in the distribution of crossovers along with variant patterns in metacentric and acrocentric macrobivalents. These results provide valuable information to complement linkage map analysis in the species while providing insight into our understanding of the mechanisms of crossover distribution along chromosome arms.