Seis interludios autobiográficos | Seis susurros performativos: Tramas que sentidizan pedagogías de los gestos vitales; Six autobiographical interludes. Six performative whispers. Plots that sense pedagogies of vital gestures Porta Vazquez, Luis Gabriel El artículo recupera, a partir de la propia vida narrada, de una identidad narrativa y de una condición de intimidad en términos autobiográficos, la puesta en acto autonarrada de lo que denomino “el cultivo de algunos gestos” que hablan acerca de cómo aprendí el oficio de acompañamiento en la dirección de tesis. Esa vida narrada da cuenta de una posición ontopolítica y estética con respecto a los sentidos otorgados a la investigación y, en este caso particular, el lugar de acompañamiento del director. Esa vida narrada en términos de socialidades, temporalidades y territorialidades sentidiza momentos y discontinuidades marcados como formas que necesitamos para hacer más vivible el mundo y ponen de manifiesto no solo el oficio, sino también la posición de ser-estar-en-el-mundo. Esas escalas que entraman componentes de mundos (des)conocidos vinculan estas pequeñas historias con los grandes relatos. En este trabajo, presentaré seis interludios autobiográficos que operan como sentidizadores, como susurros performativos que nos permiten encontrar ligazones vitales que definen unas pedagogías de los gestos en el proceso de acompañamiento y formación doctoral. Presentaré seis (dis)continuidades autobiográficas a modo de interludios narrativos para luego co-componer susurros incómodos como sujetos sintientes que somos, como un movimiento que descompone no solo el campo pedagógico, sino el de la experiencia en términos estéticos, éticos y políticos.; The article recovers, from the narrated life itself, a narrative identity and a condition of intimacy in autobiographical terms, the self-enactment of what I call “the cultivation of some gestures” that speak about how I learned the trade of accompaniment in the direction of thesis. This narrated life shows an ontopolitical and aesthetic position with respect to the meanings given to the investigation and, in this particular case, the director's place of accompaniment. That life narrated in terms of socialities, temporalities and territorialities senses moments and discontinuities marked as forms that we need to make the world more livable and reveal, not only the job, but also the position of being-being-in-the-world. Those scales that involve components of (un) known worlds link these little stories with the great stories. In this paper, I will present six autobiographical interludes that operate as sentimentalists, as performative whispers that allow us to find vital links that define pedagogies of gestures in the process of accompaniment and doctoral training. I will present six autobiographical (dis) continuities as narrative interludes to later co-compose uncomfortable whispers as sentient subjects that we are, as a movement that de-composes not only the pedagogical field, but also that of experience in aesthetic, ethical and political terms.; Este artigo recupera, a partir da própria vida narrada, de uma identidade narrativa e de uma condição de intimidade em termos autobiográficos o que denomino “ o cultivo de alguns gestos” que falam sobre como aprendi a formação de acompanhamento na direção de teses. Essa vida narrada, evidencia uma posição ontopolítica e estética a respeito dos sentidos outorgados à investigação e, nesse caso em particular, o lugar de acompanhamento do diretor. Essa vida narrada, e termos de sociabilidade, temporalidades e territorialidades dá sentido a momentos e descontinuidades marcadas como formas que precisamos para fazer mais vívido o mundo e põe de manifesto, além da formação profissional, também a posição de ser e estar no mundo. Essas escalas que emaranham componentes de mundos (des) conhecidos vinculam essas pequenas histórias com os grandes relatos. Neste trabalho, apresentarei seis interlúdios autobiográficos que funcionam como dadores de sentidos, como sussurros performativos que nos permitem encontrar ligação vital que define uma pedagogia dos gestos no processo de acompanhamento e formação de doutorado. Apresentarei seis (dis) continuidades autobiográficas como interlúdios narrativos para depois compor sussurros que incomodem como sujeitos de sentir que somos, como um movimento que descompõe não só no contexto pedagógico, mas também no contexto da experiência em termos estéticos, éticos e políticos.

Developmentalism and territory: three transport infrastructures in Santa Fe (Argentina, 1957-1971) as case studies; Desarrollismo y territorio: tres infraestructuras de transporte en Santa Fe (Argentina, 1957-1971) como casos de estudio; Desenvolvimento e território: três infraestruturas de transporte em Santa Fe (Argentina, 1957-1971) como estudos de caso Costa, Camila This study aims to recognize the elements that make up the notion of technological determinism and the power (in a political sense) of technologies in the transformation of a given area. Three major infrastructure projects are addressed, understood as technological artifacts, built in the 1960s, that consolidated the physiognomy of the corridor of National Route 168 —Santa Fe city, Argentina—. The hypothesis that guides the study assumes that infrastructures and their materiality have influenced the transformation of the territory that contains them, specifically in the Santa Fe-Paraná metropolitan area. The cases addressed —two bridges and a subfluvial tunnel— were analyzed through the recognition of their construction systems, architectural aspects —if any— and production conditions. Concrete as the predominant material turns out to be, not only the condition of possibility to experience the territory, but also, a constituent part of it. It is considered that the context of production of the works —developmental model— and the level of appropriation and assessment achieved, are fundamental aspects to understand the notion of technological determinism in these infrastructures.; Este estudio tiene como objetivo reconocer los elementos que conforman la noción de determinismo tecnológico y el poder —en un sentido político— de las tecnologías en la transformación de un área determinada. Se abordan tres grandes proyectos de infraestructura, entendidos como artefactos tecnológicos, construidos en la década de 1960, que consolidaron la fisonomía del corredor de la ruta nacional no. 168 —ciudad de Santa Fe, Argentina—. La hipótesis que guía el estudio supone que las infraestructuras y su materialidad han influido en la transformación del territorio que las contiene, específicamente en el área metropolitana constituida entre las ciudades cabeceras de Santa Fe —provincia de Santa Fe— y Paraná —provincia de Entre Ríos—. Los casos abordados —dos puentes y un túnel subfluvial— se analizaron mediante el reconocimiento de sus sistemas constructivos, sus aspectos arquitectónicos —si los hubiera— y sus condiciones de producción. El hormigón como material predominante resulta ser, no solo la condición de posibilidad para experimentar el territorio, sino también, una parte constitutiva del mismo. Se considera que el contexto de producción de las obras —modelo desarrollista— y los niveles de apropiación y valoración alcanzados son aspectos fundamentales para comprender la noción de determinismo tecnológico en estas infraestructuras.; Este estudo possui como objetivo reconhecer os elementos que conformam a noção do determinismo tecnológico e do poder —em um sentido político— das tecnologias na transformação de uma área específica. Três grandes projetos de infraestrutura são abordados, entendidos como artefatos tecnológicos, construídos na década de 1960, que consolidaram o surgimento do corredor da rodoviária nacional nº 168 —Santa Fé, Argentina—. A hipótese que norteia o estudo pressupõe que as infraestruturas e sua materialidade tenham influenciado a transformação do território que as contém, especificamente na região metropolitana constituída entre as principais cidades de Santa Fé —estado de Santa Fé— e Paraná —estado de Entre Ríos—. Os casos abordados —duas pontes e um túnel subfluvial— foram analisados através do reconhecimento de seus sistemas construtivos, seus aspectos arquitetônicos —se houver— e suas condições de produção. O concreto como material predominante acaba sendo, não apenas a condição de possibilidade de experimentar o território, mas também uma parte constituinte dele. Considera-se que o contexto de produção das obras —modelo de desenvolvimento— e os níveis de apropriação e valorização alcançados são aspectos fundamentais para a compreensão da noção de determinismo tecnológico nessas infraestruturas.

La imposibilidad metafísica de la positividad del mal en Francisco Suárez. Un estudio de caso según las fuentes: Agustín de Hipona, Dionisio Areopagita y Tomás de Aquino; The metaphysics impossibility of the malice´s positivity according to Francis Suarez. an study of information sources: Augustine of Hippo, Dionysius the Areopagite, Thomas Aquinas Mendoza, José María Felipe Francisco Suárez expone su comprensión metafísica sobre la maldad en las D.M. XI. Allí sostiene la imposibilidad de la existencia del mal como principio positivo de los entes o como su atributo. En cualquiera de los casos queda clara la ausencia de un tratamiento reflexivo sobre el mal metafísico en la filosofía griega (XI, I, 2), y por contraposición, la presencia especulativa de este tópico en el cristianismo de la época patrística y la herencia de sus tesis en la escolástica medieval previa a la condena parisina de 1277 (XI, I, 13). El entendimiento de Suárez traza el mentado itinerario deteniéndose en tres autoridades de modo particular y que aquí consideraremos con detalle: Agustín de Hipona, Dionisio Areopagita y Tomás de Aquino.; Francis Suárez shows his metaphysical comprehension about the malice in the D.M. XI. In this particular case, he mainteins the impossibility of wickedness´ existence like a positive principle or like an attribute of ens. In such cases it is clearly stated the absence of a treatment reflexive on the metaphysical malice in the Greek Philosophy (XI, I, 2) and quite the contrary, the speculative presence of this topic in the Early Christianity and their legacy in Medieval and Scholastic Philosophy before to Parisian Condemnation in 1277 (XI, I, 13). Therefore, Suarez chart a way forward according to the statement of D.M. XI with three leading figures: Augustine of Hippo, Dionysius the Areopagite and Thomas Aquinas.

Gentianaceae Filippa, Eva María; Barboza, Gloria Estela Se realiza la revisión florística de la Familia Gentianaceae para Argentina. Se describen 12 géneros y 45 especies; se proveen claves diferenciales, láminas, distribución geográfica y sinonimia.

Biosimilar monoclonal antibodies in Latin America Karp, Paola Julieta; Gatto, Matías Iván; Batto, María Victoria; Ferrero, Sol; Helguera, Gustavo Fernando Antibodies, also known as immunoglobulins, are complex glycoproteins produced by B-cells against foreign substances as part of the adaptive immune response [1, 2]. The invention of the hybridoma technology in 1975 by Köhler and Milstein allowed the production of monoclonal antibodies with a desired specificity from a unique clone of B cells [3]. In contrast to polyclonal antibodies, monoclonal antibodies are homogeneous, monospecific, and could be produced in unlimited quantities in the laboratory. Since they can be directed against almost any molecular epitope, monoclonal antibodies were early adopted as a diagnostic tool, but took more than a decade until the approval of Muromonab-CD3 (Orthoclone Okt3®), which is the first monoclonal antibody developed with the hybridoma technology commercialized for therapeutic use [4]. However, since antibodies from hybridoma technology have only murine sequences, in human patients they exhibited limited effector function [5], were immunogenic inducing anti-mouse antibodies, and had a significantly reduced half-life [6]. Therefore, it was not until the development of recombinant monoclonal antibodies in the 1980s and 1990s that a new era of biologic therapy began, with the chimerical [7], humanized [8] and fully human antibodies [9]. Each step involved the gradual replacement of murine segments of the antibody sequence by the corresponding human sequence: in chimeric antibodies the constant region was replaced, and in humanized antibodies, the framework flanking the complementarity-determining regions and the constant region were replaced, and in human monoclonal antibodies the whole sequence is human. Further engineering allowed their customization, creating variants in valence, size, effector functions and with the conjugation of compounds for delivery to targeted cell types such as cancer.

Towards adaptive water governance in South America: lessons from water crises in Argentina, Brazil and Uruguay Trimble, Micaela; Campello Torres, Pedro Henrique; Jacobi, Pedro Roberto; Dias Tadeu, Natalia; Salvadores, Franco José; Mac Donnell, Lara; Olivier, Tomas; Giordano, Gabriel; Alonso Paixão dos Anjos, Lidiane; Santana Chaves, Igor Matheus; Pascual, Miguel Alberto; Mazzeo, Nestor; Jobbagy Gampel, Esteban Gabriel Similar to the whole world, South America faces numerous water-related crises and challenges (e.g. water quantity and quality scarcity) due to climate change, land use, governance systems, and other such factors. This chapter deals with water governance in South America, specifically Argentina, Brazil, and Uruguay. The objective was to analyse the recent water crises in three watersheds in terms of their consequences on drinking water supply—turbidity in the Chubut river (Patagonia, Argentina) in 2017, drought in the Piracicaba-Capivari-Jundiaí river basins (São Paulo, Brazil) in 2014–2015, and algal blooms in the Laguna del Sauce lake (Maldonado, Uruguay) in 2015—and the lessons learned. The methods used included semi-structured interviews with key stakeholders and document analyses. The consequences of the crises were diverse and included enhanced communication among actors at multiple levels (Argentinian and Uruguayan cases), incorporation of climate components in the basin management plan (Brazilian case), and emergence of social mistrust regarding the quality of drinking water (Uruguayan case). We discuss the findings in light of the need for adaptive and anticipatory water governance in the context of climate change and uncertainty.

Weyla santuccii n. sp. (Bivalvia, Pectinidae) from the Pogibshi Formation, south-central Alaska, the oldest species known of the genus in western North America Damborenea, Susana Ester; Blodgett, Robert B.; Hodges, Montana S.; Hodges, Christopher L. Species of the pectinid genus Weyla s.l. were previously reported from several localities in Alaska, where they have a wide age range within the Early Jurassic. This paper provides a full description and discussion of the new species Weyla santuccii, believed to be the oldest of the group. It occurs in Early Jurassic marine sedimentary and volcanic deposits in the July member of the informally named Pogibshi formation on the Kenai Peninsula southwest of Seldovia, Alaska. The Pogibshi formation is assigned to the accreted Peninsular terrane of southern Alaska, and the middle July member is an understudied fossiliferous unit, perhaps encompassing the Triassic-Jurassic boundary (TJB). A paleontological and geochronological search for the TJB has resulted in the new record of the Early Jurassic (Hettangian) pectinid bivalve Weyla, as well as other marine invertebrates, including solitary stylophyllid scleractinian corals, and the gastropod Pleurotomaria. These fossils are significant because they are among the oldest known Jurassic megafossil occurrences in Alaska. Biochronology of ammonites and isotopic dating of detrital zircons confirm the middle Hettangian age of the Weyla, with a maximum depositional age of 200.5 ±2.5 ±1.8 Ma.

A green and reusable catalytic system based on silicopolyoxotungstovanadates incorporated in a polymeric material for the selective oxidation of sulfides to sulfones Frenzel, Romina Alejandra; Palermo, Valeria; Sathicq, Angel Gabriel; Elsharif, Asma M.; Luque, Rafael; Pizzio, Luis Rene; Romanelli, Gustavo Pablo Two vanadium-containing Keggin silicopolyoxotungsto compounds K5SiVW11O40 and K6SiV2W10O40 were synthesized and characterized. They were incorporated in a superporous hydrogel constitute by prop-2-enamide and propenoic acid as initial monomers and bis-acrylamide as cross-linking moiety. Materials were characterized by several techniques. According to FTIR and 51V MAS-NMR, the (SiVxW12-xO40)(4+x)- anions are the main species present in the hybrid materials. Additionally, they do not decompose during the preparation of the composite. XRD and SEM-EDX results suggest that (SiVxW12-xO40)(4+x)- anions were well dispersed in the support or present as amorphous phases. These materials were evaluated as catalysts in the oxidation of sulfides to sulfones, using an eco-friendly oxidant and mild reaction conditions. The hybrid materials with higher content of the heteropoly compound displayed a remarkable catalytic behaviour in the oxidation of diphenyl sulfide. Materials also exhibited a stable catalytic performance through consecutive reuses. Optimum reaction parameters established were subsequently translated to the oxidation of a sulfide of interest (dapsone) due to its pharmacological activities.

Escuelas y carreras de formación superior en cine y audiovisual en la Patagonia: procesos históricos y ámbitos formativos emergentes; Higher education degrees in cinema and audiovisual media in patagonia: historical processes and emerging training areas Flores, Silvana Noelia; Kejner, Julia Elena En las últimas décadas, se han abierto en diversas partes de Argentina carreras terciarias y universitarias vinculadas al audiovisual. En este artículo nos interesa indagar acerca del desarrollo de ese proceso en las diferentes provincias que componen la región patagónica, que no solamente permitió la formación de cineastas por fuera de centros geográfico-políticos como Buenos Aires, sino que además alentó la producción cinematográfica regional. Para ello identificamos tres momentos del proceso de desarrollo histórico de instituciones educativas en la región: 1) de 1960 a 1989, caracterizado por una oferta vinculada al audiovisual, pero con escasa o nula formación específica, 2) de 1990 a 2009, momento en el que emergen las primeras carreras específicas de estudio de cine y audiovisual, pero concentradas en una sola provincia y, 3) de 2010 a 2020, decenio en el que proliferan los espacios de educación, garantizando, al menos, una institución por cada provincia de la región. Hipotetizamos que este crecimiento de las instituciones educativas está vinculado a la posibilidad de autorrepresentación identitaria; a la necesidad de dinamizar la economía regional; y a la ejecución de políticas nacionales y subnacionales tendientes a descentralizar y promocionar la actividad.; Over the past decades, tertiary and university degrees related to audiovisual media have been created in Argentina. This article is interested in inquiring about this process in the provinces that constitute Patagonia, which has not only provided new filmmaker courses outside geographic-political centers such as Buenos Aires, but it has also encouraged regional film production. Thus, we identified three moments in the process of historical development of educational institutions in the region: 1) from 1960 to 1989, characterized by an offer linked to audiovisual production, but with minimal or no specific training, 2) from 1990 to 2009, when the first specific film and audiovisual study courses emerged, but concentrated in only one province and, 3) from 2010 to 2020, a decade in which educational spaces proliferated, guaranteeing at least one institution for each province of the region. We hypothesize that this growth in educational institutions is linked to the need to boost the regional economy, and to the execution of national and sub-national policies aimed at decentralizing and promoting the activity.

¿Qué se esconde tras los deseos para la democracia?: Una aproximación empírica a las subjetividades político-ideológicas contemporáneas; What is hidden behind the desires for democracy?: An empirical approach to contemporary political-ideological subjectivities Cuesta, Micaela; Villarreal, Pablo Mariano En este artículo nos proponemos rastrear algunas de las huellas que han dejado casi cuatro décadas de neoliberalismo en las subjetividades contemporáneas. En particular, nuestro objetivo es analizar los discursos que se manifiestan en contra del antagonismo político en Argentina (la “grieta”) y las representaciones de la democracia que de ellos se desprenden. Para ello, hemos realizado un trabajo de campo de corte cualitativo en una localidad situada al sur de la provincia de Córdoba (Argentina), con el objetivo de relevar las percepciones sobre los problemas de la democracia actual. Nuestros hallazgos sugieren que detrás de los “deseos para la democracia”, es posible encontrar dos pulsiones contrapuestas: una antidemocrática y otra democrática. Ambas difieren, sobre todo, por el lugar e importancia que le otorgan al orden, al conflicto social, a la desigualdad y a la autonomía.; In this article, we analyze some of the traces that almost four decades of neoliberalism have left on contemporary subjectivities. In particular, our objective is to analyze the discourses against the political antagonism in Argentina (the so called “grieta”) and the representations of democracy that emerge from them. For this, we carried out a qualitative field work in a town located in the south of Córdoba (Argentina), in order to survey the perceptions about the current democracies problems. Our findings suggest that behind the “wishes for democracy”, it is possible to find two opposing drives: one anti-democratic and the other democratic. Both differ, above all, by the place and importance they give to order, social conflict, inequality and autonomy.

Exploration by Shake-the-Box technique of the 3D perturbation induced by a bubble rising in a thin-gap cell Pavlov, Lucas Alejo; Cazin, Sébastien; Ern, Patricia; Roig, Véronique Abstract: From Lagrangian measurements using the Shake-the-Box technique (Schanz et al. in Exp Fluids 57(5):70, 2016) we investigate the velocity field about a single bubble rising in a thin-gap cell and we discuss it in an Eulerian framework of analysis. The gap thickness is equal to 2.85 mm and the bubble-induced perturbation extends over at least 10 cm in the plane of the cell, so that a very flat volume of observation is required. At first validation of the technique is provided during an emptying of the cell. It allows to fix all methodological parameters to ensure accurate measurements and, indirectly, to measure precisely the gap thickness. Then, the velocity field about a confined high-Reynolds number bubble is investigated. This velocity field is discussed in comparison with a previous description obtained by two-dimensional Particle Image Velocimetry (2D2C-PIV) with volume enlightening of the whole cell (Roig et al. in J Fluid Mech 707:444?466, 2012; Filella et al. in J Fluid Mech 778:60?88, 2015). Velocity is first averaged over the gap and compared to the 2D2C-PIV measurement obtained from tomo-reconstructed and projected frontal images. Then a 3D description of the velocity field is presented. It allows to discuss the quality and limitations of the 2D description of the wake with a velocity field integrated across the cell. In particular, the 3D description obtained from STB shows that the flow becomes mainly parallel to the cell plates at a distance of approximately one bubble diameter and that the wake is organised in slices parallel to the plates moving with their own dynamics that may vary their relative in-plane orientations, but all follow the general exponential viscous law of decay.

Trabajo y racismo, territorios y autonomías: Ensayo sobre las luchas wichí en Argentina Boffa, Natalia Cuando hablamos de las luchas wichí en Argentina, nos referimos a procesos que se producen en el norte del país, especialmente en la región chaqueña de las provincias de Salta, Formosa y Chaco. Estos procesos suelen ser heterogéneos y abiertos, pero contienen anclajes comunes y compartidos. En la breve entrevista publicada en el boletín anterior realizada a Ulises Fernández (en Lao y Alkmin, 2021) aparecieron algunos de estos anclajes sobre los que me gustaría explayarme para aunarlo o ponerlo en tensión con otras entrevistas y observaciones realizadas a lo largo de trabajos de campo que he realizado en Salta desde hace unos años atrás. Sobre todo, me interesa dejar planteados una serie de interrogantes para reflexiones futuras.

Evaluación preliminar del potencial de especies nativas de Salvinia biloba para remover atrazina y carbendazim en muestras de agua Loureiro, Dana Belen; Lario, Luciana Daniela; Herrero, María Sol; Carralero Bon, Iván; Salvatierra, Lucas Matías; Perez, Leonardo Martin Se evaluó la capacidad de especímenes autóctonos de Salvinia biloba para eliminar atrazina y carbendazim en muestras de agua contaminadas artificialmente con el fin de seleccionar plantas nativas para su empleo en sistemas de remediación de aguas impactadas con pesticidas. Los experimentos se llevaron a cabo durante 20 días (23 ± 2 °C, 100 lm/W de intensidad lumínica,fotoperíodo de 12 h) en recipientes de vidrio conteniendo agua desionizada contaminada con 0; 5,0; 10,0 o 20,0 mg/L de atrazina o carbendazim. Se observó una disminución en el crecimiento de la biomasa de todas las macrófitas expuestas a los pesticidas. La exposición a atrazina mostró mayores efectos fitotóxicos en las plantas tratadas demostrando una alta sensibilidad de S. biloba a este herbicida. Notablemente, se observó una menor clorosis y necrosis en las plantas expuestas a carbendazim, incluso a la concentración más alta del fungicida ensayada (i.e., 20 mg/L). En general, S. biloba presentó un bajo potencial de eliminación de ambos pesticidas, siendo éste además negativamente afectado al aumentar la concentración de atrazina y carbendazim en las muestras de agua. El espectro infrarrojo (FTIR-ATR) obtenido para la biomasa de S. biloba mostró la presencia de diferentes grupos funcionales (e.g., carboxilo, fosfato, amida, hidroxilo, sulfato) en la superficie de la planta que podrían estar involucrados en la biosorción de los pesticidas a través de interacciones π-π, enlaces de hidrógeno, intercambio iónico y atracciones electrostáticas. En conclusión, la capacidad de S. biloba para eliminar atrazina y carbendazim en ambientes acuáticos contaminados con estos pesticidas parece ser limitada.; The potential of autochthonous free-floating Salvinia biloba specimens was assessed in order to select native plants for use in remediation of atrazine and carbendazim polluted waters. Experiments were carried out over 20 days (23 ± 2 °C, 100 lm/W light intensity, 12 h photo-period) in glass vessels containing deionized water contaminated with 0; 5.0; 10.0 and 20.0 mg L-1 of atrazine or carbendazim. A decrease in biomass growth was observed in all macrophytes exposed to the pesticides. Atrazine showed higher toxic effects evidenced by the symptomatology developed by the plants, demonstrating the high sensitivity of S. biloba to this herbicide. Noticeably, lower chlorosis and necrosis were observed in S. biloba specimens treated with carbendazim, even at the higher concentration tested. In general, S. biloba presented a low potential for both atrazine and carbendazim removal. In addition, the percentage of pesticides removed from the solution decreased when the plants were exposed to higher concentrations of the pollutants. This fact probably resulted from the processes of pesticide adsorption by plant biomass. The FTIR-ATR spectrum obtained for S. biloba showed the presence of different functional groups (e.g., carboxyl, phosphate, amide, hydroxyl, sulphate) on the plant surface that could be involved in pesticide biosorption through π-π interactions, hydrogen bonding, acid-base behavior, ion-exchange properties, and electrostatic attractions. In conclusion, S. biloba was not much effective in removing atrazine and carbendazim from water samples. Therefore, the use of these native macrophytes to remediate aquatic environments contaminated with these pesticides seems to be limited.

De vecinos sufrientes a ciudadanos peticionantes: Actores e instituciones en la construcción de un arte de curar moderno en la provincia de Santa Fe (Argentina, 1847-1907); From suffering neighbors to demanding citizens: Actors and institutions in the construction of a modern healing in the Santa Fe province (Argentina, 1847–1907); De vizinhos sofredores a cidadãos peticionários: Atores e instituições na construção de uma moderna arte de curar na província de Santa Fé (Argentina, 1847-1907) Allevi, José Ignacio; Carbonetti, Adrian El artículo analiza las transformaciones de las peticiones de salud durante la segunda mitad del siglo XIX en la provincia de Santa Fe (Argentina) para reflexionar sobre su construcción como demanda social. Con el estudio de expedientes administrativos de diversas localidades nos proponemos, en primer lugar, registrar la diversidad de actores que buscaban curar por fuera de la medicina diplomada y las estrategias de la población para conseguir su autorización. En segundo lugar, recuperar las representaciones y saberes que fundaban la comprensión de la enfermedad por parte de quienes demandaban atención en salud. Por último, analizar la mutación de sus apelaciones a un Estado provincial en construcción y su consecuente ciudadanización.; The article analyzes changes in health requests during the second half of the 19th century in the province of Santa Fe (Argentina), focusing on the way these requests construct social demand. Based on administrative files from various localities, we first register the diversity of actors who sought to heal outside of graduate medicine and their strategies to obtain authorization. Secondly, we focus on the representations and knowledge related to the understanding of disease by those who demanded health care. Finally, we analyze changes in their appeals to a provincial state under construction and the consequent building of citizenship.; O artigo analisa as transformações das petições de saúde durante a segunda metade do século XIX na província de Santa Fé (Argentina) para refletir sobre sua construção como demanda social. Com o estudo de arquivos administrativos de várias localidades, pretendemos, em primeiro lugar, registrar a diversidade de atores que buscavam curar fora da medicina diplomada e as estratégias da população para obter sua autorização. Em segundo lugar, recuperar as representações e saberes que fundamentavam a compreensão da doença daqueles que demandavam atenção em saúde. Finalmente, analisar a transformação de suas demandas a um estado provincial em construção e a consequente formação de sua cidadania.

Late Pleistocene-Holocene paleoenvironments in the middle basin of the Salado river, province of Buenos Aires, Argentina Pommarés, Nicole Nadín; Fucks, Enrique Eduardo; Pisano, Maria Florencia; Luengo, Mariel Samanta; Ramos, Nicolás Andrés; Di Lello, Claudia Viviana The Salado river basin is the largest one in the Buenos Aires province, with an area near 170,000 km2 . This work aims to perform a stratigraphic analysis of the middle sector of this basin to provide information on the paleoenvironmental evolution during the end of the Quaternary. Results indicate that the evolution of this basin occurred largely in water deficit conditions. Different aeolian lithostratigraphic units are recognized and grouped into three units, as follows: La Postrera, Laguna Las Barrancas, and De la Riestra Formations. New lithological, paleontological, and chronological information is provided regarding the fluvial deposits, which allows for a deeper understanding of the paleoenvironmental conditions that prevailed during deposition. The integrated study of all these deposits with an adjusted chronological control suggests a paleoenvironmental model that is directly associated with the climatic conditions that prevailed at the end of the Quaternary.

Modulation of IMD, Toll, and Jak/STAT Immune Pathways Genes in the Fat Body of Rhodnius prolixus During Trypanosoma rangeli Infection Rolandelli, Agustin; Nascimento, Adeisa E. C.; Silva, Leticia S.; Rivera Pomar, Rolando; Guarneri, Alessandra A. Trypanosoma rangeli is the second most common American trypanosome that infects man. It is vectored by triatomines fromthe genusRhodnius, in which it invadesthe hemolymph and infects the salivary glands, avoiding the bug immune responses. In insects, these responses are initiated by well conserved pathways, mainly the IMD, Toll, and Jak/STAT. We hypothesize that long-term infection with T. rangeli in the gut or hemolymph of Rhodnius prolixus triggers different systemic immune responses, which influence the number of parasites that survive inside the vector. Thus, we investigated groups of insects with infections in the gut and/or hemolymph, and evaluated the parasite load and the expression in the fat body of transcription factors (Rp-Relish, Rp-Dorsal, and Rp-STAT) and inhibitors (Rp-Cactus and Rp-Caspar) of the IMD, Toll, and Jak/STAT pathways. We detected lower parasite counts in the gut of insects without hemolymph infection, compared to hemolymph-infected groups. Besides, we measured higher parasite numbers in the gut of bugs that were first inoculated with T. rangeli and then fed on infected mice, compared with control insects, indicating that hemolymph infection increases parasite numbers in the gut. Interestingly, we observed that genes from the three immune pathways where differentially modulated, depending on the region parasites were present, as we found (1) Rp-Relish downregulated in gut-and/or-hemolymph-infected insects, compared with controls; (2) RpCactus upregulated in gut-infected insect, compared with controls and gut-andhemolymph-infected groups; and (3) Rp-STAT downregulated in all groups of hemolymph-infected insects. Finally, we uncovered negative correlations between parasite loads in the gut and Rp-Relish and Rp-Cactus expression, and between parasite counts in the hemolymph and Rp-Relish levels, suggesting an association between parasite numbers and the IMD and Toll pathways. Overall, our findings reveal new players in R. prolixus–T. rangeli interactions that could be key for the capacity of the bug to transmit the pathogen.

Strong-interaction matter under extreme conditions from chiral quark models with nonlocal separable interactions Gomez Dumm, Daniel Alberto; Carlomagno, Juan Pablo; Scoccola, Norberto Nerio We review the current status of the research on effective nonlocal NJL-like chiral quark models with separable interactions, focusing on the application of this approach to the description of the properties of hadronic and quark matter under extreme conditions. The analysis includes the predictions for various hadron properties in vacuum, as well as the study of the features of deconfinement and chiral restoration phase transitions for systems at finite temperature and/or density. We also address other related subjects, such as the study of phase transitions for imaginary chemical potentials, the possible existence of inhomogeneous phase regions, the presence of color superconductivity, the effects produced by strong external magnetic fields and the application to the description of compact stellar objects.

Specialization and performance trade-offs across hosts in cactophilic Drosophila species Bouzas, Santiago Oscar; Barbarich, María Florencia; Soto, Eduardo Maria; Padro, Julian; Carreira, Valeria Paula; Soto, Ignacio Maria 1. We assessed the host-related niche breadth for D. koepferae and D. buzzatii, a pair of sibling cactophilic species with contrasting backgrounds of host use. We tested for the ‘Jack of all trades- Master of none’ scenario predicting a more evident exhibition in D. buzzatii rather than in the supposedly specialist D. koepferae. 2. Additionally, using laboratory strains of both species selected for tolerance to extremely high concentrations of a columnar cacti’s secondary metabolites, we tested whether adaptation to a high-demanding host involved the loss of performance capabilities in other hosts. 3. D. buzzatii was more affected by the artificial host shifts than D. koepferae which presented an overall better performance when rearing in novel columnar hosts. 4. Artificially selected strains of D. buzzatii performed poorer in both novel and native natural hosts compared with control strain indicating that adaptation carried associated costs regarding the potential to exploit other cacti. Conversely, artificial evolution of the D. koepferae’s strains did not translate into decreased performance in other hosts. 5. D. buzzatii complied better with the predictions of the Jack of all trades-Master of none hypothesis. 6. Host specialization is a dynamic feature in the repleta group and a major driver of diversification in its evolutionary history. As the group presents an Opuntia breeder as the ancestral condition, D. buzzatii would represent not only a plesiomorphic state of host use but also the ancestral ecological strategy of specialization.

El guaraní como lengua de migración en contextos escolares de Buenos Aires Ciccone, Florencia A partir del análisis de una experiencia de investigación participativa desarrollada en una escuela primaria para jóvenes y adultos del barrio Villa 21-24 (Barracas, CABA) a la que asisten mayoritariamente estudiantes de origen paraguayo hablantes de guaraní, el artículo se propone: (i) examinar las particularidades de abordar la situación socio/etnolingüística de la lengua guaraní criolla en su variedad paraguaya como lengua de migración en el ámbito educativo; (ii) situar las prácticas comunicativas plurilingües y las formas de intervención pedagógica que tienen lugar en la escuela en su dimensión política y educativa; y (iii) analizar las funciones que adopta la lengua guaraní en el contexto escolar y las representaciones que construyen docentes y estudiantes sobre las distintas lenguas y variedades en uso. El trabajo está basado en datos registrados en terreno y sistematizados a partir de una experiencia interdisciplinaria desarrollada en el periodo 2015-2019, en el marco de sucesivos proyectos de extensión universitaria de la Universidad de Buenos Aires (actualmente en curso: Proyecto UBANEX- 2019-2021- "Multilingüismo en el aula. Diversidad lingüística e inclusión educativa en escuelas públicas de los barrios de Barracas, Nueva Pompeya, Flores y Once de la Ciudad de Buenos Aires. Segunda parte", directora: Dra. Corina Courtis, co-directora: Florencia Ciccone) llevados adelante por la Cátedra de Etnolingüística (FFyL, UBA) en articulación el Centro de Innovación y Desarrollo para la Acción Comunitaria (CIDAC, FFyL, UBA).

A History of Book Publishing in Contemporary Latin America Sora, Gustavo Alejandro This book presents a cultural history of Latin America as seen through a symbolic good and a practice – the book, and the act of publication – two elements that have had an irrefutable power in shaping the modern world. The volume combines multiple theoretical approaches and empirical landscapes with the aim to comprehend how Latin American publishers became the protagonists of a symbolic unification of their continent from the 1930s through the 1970s. The Latin American focus responds to a central point in its history: the effective interdependence of the national cultures of the continent. Americanism, until the 1950s, or Latin Americanism, from the onset of the Cold War, were moral frameworks that guided publishers’ thinking and actions and had concrete effects on the process of regional integration. The illustration of how Latin American publishing markets were articulated opens up broader and comparative questions regarding the ways in which the ideas embodied in books also sought to unify other cultural areas. The intersection of cultural, political and economic themes, as well as the style of writing, makes this book an interest to a wide reading public with historical and sociological sensitivity and global cultural curiosity.