ECAUNGS La base de datos se centra en mediciones de material particulado y meteorología realizada con un equipo de bajo costo desarrollado denominado ECAUNGS. A su vez, se sincronizó con datos tomados con un fotómetro solar de bajo costo en la misma zona, y con meteorología descargada del SMN y de asimilación del NOAA, así como datos de contaminantes y meteorología de la estación de calidad de del aire en Dock Sud de ACUMAR. Esta base se utilizó para desarrollar un modelo de aprendizaje automático para predecir concentraciones de material particulado (Ver MÉTODOS DE BAJO COSTO PARA ESTUDIO PRELIMINAR DEL MATERIAL PARTICULADO EN EL CENTRO-NORTE DEL CONURBANO BONAERENSE, en Anales AFA 2022).

Planilla de sitios Planilla con sitios arqueológicos y sus características (sin curar)

Wildfire Smoke Effects on Lake-Habitat Specific Metabolism: Toward a Conceptual Understanding Scordo, Facundo; Sadro, Steven; Culpepper, Joshua; Seitz, Carina; Chandra, Sudeep The impacts of wildfire smoke on lake habitats remains unclear. We determined the metabolic response to smoke in the epi-pelagic and two littoral habitats in Castle Lake, California. We compared light regime, gross primary production, ecosystem respiration, and net ecosystem production in years with and without smoke. During the smoke period incident ultraviolet-B (UV-B) radiation and photosynthetically active radiation (PAR) decreased by 53% and 28%, respectively, while the water column extinction coefficient of UV-B and PAR increased by 20% and 18% respectively. Epi-pelagic productivity increased during smoke cover because of decreased solar inputs. PAR values remained sufficient to saturate productivity, suggesting observed differences were primarily the result of changes in UV-B. Littoral-benthic productivity did not change, possibly reflecting adaptation to high-intensity UV-B light in these habitats. Our results highlight the importance of understanding how prolonged wildfire smoke alters the amount of energy produced from specific habitats in lakes.

Actividad cuaternaria entre el piedemonte y la planicie orientales de la sierra de Comechingones asociada a la falla Santa Catalina, Sierras Pampeanas de Córdoba, Argentina; Quaternary activity associated with the Santa Catalina fault between the eastern piedemont and plain of the Comechingones mountain range, Sierras Pampeanas of Córdoba, Argentina Sagripanti, Guillermo Luis; Villalba, Diego; Andreazzini, María Jimena Las deformaciones neotectónicas asociadas al frente de levantamiento de la sierra de Comechingones se concentran en su piedemonte occidental, aunque también se han detectado deformaciones análogas vinculadas a fallas inversas ubicadas en el piedemonte oriental y en su límite con la planicie aledaña, entre estas fallas, las denominadas Las Lagunas y Las Rosas. El objetivo de la presente contribución es presentar evidencias neotectónicas que confirmen la actividad cuaternaria de la falla Santa Catalina situada al este de las antes mencionadas. Entre los métodos aplicados se destacan la toma de fotografías aéreas oblicuas, la descripción de perfiles naturales, un análisis de modelos de elevación digital, determinación de parámetros morfométricos en tramos de cauces y la utilización de información de perforaciones para la extracción de agua e información gravimétrica obtenida en un trabajo anterior. Los resultados indican que la falla Santa Catalina es una falla de movimiento inverso no emergente, responsable de la morfología que generan los mesobloques Santa Catalina-Golf y Espinillos, y de las modificaciones en la red de drenaje local. De acuerdo a las deformaciones detectadas, pliegues y flexuras, entre otras, se interpreta que la falla Santa Catalina ha tenido actividad durante el Cuaternario y que podría representar a las deformaciones neotectónicas más orientales de la provincia geológica “Sierras Pampeanas de Córdoba y San Luis” a los 33º S.; The neotectonic deformations associated with the uplift front of the Comechingones mountain range are concentrated in its western foothills, although analogous deformations associated with reverse motion faults located in the eastern foothills and on its border with the surrounding plain, such as the so-called Las Lagunas and Las Rosas, have also been detected. The objective of this contribution is to present neotectonic evidence confirming the quaternary activity of the Santa Catalina fault. Oblique aerial photos, description of natural profiles, a digital elevation models analysis, determination of morphometric parameters in river reaches and the use of drilling information for water extraction and gravimetric information obtained in previous works among others, were the applied methods. The results indicate that the Santa Catalina fault is a non-emergent reverse motion fault, responsible for the morphology generated by the Santa Catalina-Golf and Espinillos blocks, and for the modifications in the local drainage network. The deformations detected, folds and flexures among others, allow us to interpret that the Santa Catalina fault has been active during the Quaternary and that it could represents the easternmost neotectonic deformations of the geological province Sierras Pampeanas of Córdoba and San Luis to this latitude of 33º South.

Early-stage response in anaerobic bioreactors due to high sulfate loads: Hydrogen sulfide yield and other organic volatile sulfur compounds as a sign of microbial community modifications Olivera, Camila; Tondo, Maria Laura; Girardi, Valentina; Fattobene, Lucia; Herrero, María Sol; Perez, Leonardo Martin; Salvatierra, Lucas Matías In this work, the early-stage response of six lab-scale biogas bioreactors fed with different amounts of a sulfate-rich organic agro-industrial effluent was investigated. Biogas characterization, gas chromatography selective for sulfur compounds and high-throughput sequencing of 16S rRNA gene were performed. Hydrogen sulfide (H2S) yield went from transient to steady state in ∼ 2 weeks for all the studied conditions. In addition, volatile sulfur compounds (VSCs), like methanethiol (MeSH) and dimethyl sulfide (DMS), were generated at high sulfate loads. Changes were evidenced in the microbial community structures, with a higher abundance of genes involved in the dissimilatory sulfate-reduction pathway in high loaded sulfate bioreactors, as determined by PICRUSt analysis. Principal component analysis (PCA) and correlation analyses evidenced strong relationships between H2S, VSCs and the microbial community. Sulfate-reducing bacteria (SRB) like Desulfocarbo, Desulfocella and Desulfobacteraceae might be possibly linked with methylation processes of H2S.

El renacimiento del mundo antiguo en Italia: Diálogos y debates; The renaissance of the antiquity in Italy: Dialogues and debates Sverlij, Mariana Desde que Burckhardt encontrara en la cultura antigua resucitada en la Italia del siglo XIV una guía de acceso a los tiempos modernos, numerosos estudios han planteado sus propias certezas e interrogantes en torno al concepto de Renacimiento. Nuestra intención en las siguientes líneas es demorarnos en algunos de estos debates y diálogos historiográficos a fin de poner de relieve y en tensión la idea de retorno a un tiempo histórico-cultural anterior que subyace en el concepto de Renacimiento.; Since Burckhardt found a guide to access modern times through the Antiquity culture resurrected in fourteenth-century Italy, numerous studies have considered their own questions and notions surrounding the concept of Renaissance. In the following lines, it is intended to look into some of these historiographical debates and dialogues, with the aim to highlit and argue the idea of returning to a certain previous historical and cultural time, which underlies the concept of Renaissance.

Exp2GO: Improving Prediction of Functions in the Gene Ontology with Expression Data Di Persia, Leandro Ezequiel; Lopez, Tiago; Arce, Agustín Lucas; Milone, Diego Humberto; Stegmayer, Georgina The computational methods for the prediction of gene function annotations aim to automatically find associations between a gene and a set of Gene Ontology (GO) terms describing its functions. Since the hand-made curation process of novel annotations and the corresponding wet experiments validations are very time-consuming and costly procedures, there is a need for computational tools that can reliably predict likely annotations and boost the discovery of new gene functions. This work proposes a novel method for predicting annotations based on the inference of GO similarities from expression similarities. The novel method was benchmarked against other methods on several public biological datasets, obtaining the best comparative results. exp2GO effectively improved the prediction of GO annotations in comparison to state-of-the-art methods. Furthermore, the proposal was validated with a full genome case where it was capable of predicting relevant and accurate biological functions. The repository of this project withh full data and code is available at https://github.com/sinc-lab/exp2GO.

Caracterización morfo-fisiológica y respuesta germinativa de semillas de Delonix regia (Bojer) raf. sometidas a diferentes tratamientos pregerminativos; Morpho-physiological characterization and germinative response of Delonix regia (Bojer) raf seeds. subjected to different pregerminative treatments; Caracterização morfofisiológica e resposta germinativa das sementes de Delonix regia (Bojer) raf. sujeitas a diferentes tratamentos prégerminativos Luna, Claudia Verónica; Fontana, María Laura Delonix regia es una especie que adquirió importancia mundial debido a sus múltiples propiedades y aplicaciones. Esta presenta baja germinación por características propias de la semilla como: permeabilidad de la testa y presencia de inhibidores fenólicos que impide el flujo necesario de agua y oxígeno para desencadenarla. El objetivo del trabajo consistió en caracterizar la morfología y la respuesta germinativa de semillas de D. regia sometidas a diferentes tratamientos pregerminativos. Metodológicamente se aplicó un diseño experimental completamente al azar con cuatro repeticiones de 25 semillas cada uno. Los tratamientos fueron: escarificado físico, mecánico y combinado. En este contexto, se logró establecer la calidad de semillas indicando sus rasgos biométricos y caracterización colorimétrica, que son herramientas ventajosas para utilizarlas como sistemas de clasificación para la especie, ya que se ha determinado el tamaño y el color de las semillas más idóneas para obtener plántulas. En la evaluación de la calidad morfofisiológica de las simientes, se logró la interpretación de pruebas de viabilidad basados en patrones y detección de daños, por métodos destructivos y no destructivos. De los tratamientos pregerminativos considerados en esta investigación, el método de escarificado físico mediante la inmersión de las semillas por 15 minutos en agua a 100 ºC, con enfriamiento en agua a temperatura ambiente, ha influido de manera directa en la mayoría de los parámetros analizados para promover la emergencia de las plántulas.; Delonix regia is a species with a worldwide importance due to its multiple properties and applications. It has low the germination due seed characteristics like testa permeability and presence of phenolic inhibitors, which inhibits the necessary flow of water and oxygen to enhance the process. The objective of this study was to characterize the morphology and germination response of D. regia seeds subjected to different pregermination treatments. Methodologically, a completely randomized experimental design with four replicates of 25 seeds each was applied. The treatments were: physical, mechanical and combined scarification. In this context, it was possible to establish the quality of seeds by indicating their biometric traits and colorimetric characterization, which are advantageous tools to be used as classification systems for the species, since the size and color of the most suitable seeds for obtaining seedlings have been determined. In the assessment of the morphophysiological quality of the seeds, the interpretation of viability tests based on patterns and damage detection, by destructive and non-destructive methods, was achieved. Of the pregerminative treatments considered in this research, the physical scarification method by immersing the seeds for 15 minutes in water at 100 ºC, with cooling in water at room temperature, had a direct influence on most of the parameters analyzed to promote seedling emergence.; Delonix regia é uma espécie que adquiriu importância mundial devido a suas múltiplas propriedades e aplicações; mas apresenta deficiências na germinação de suas sementes; devido à variação no processo por suas características intrínsecas (problemas de permeabilidade do testa e presença de inibidores fenólicos), o que impede o fluxo necessário de água e oxigênio para desencadeá-lo. O objetivo deste estudo era caracterizar a morfologia e a resposta germinativa das sementes D. regia submetidas a diferentes tratamentos pré-germinativos. Metodologicamente, foi aplicado um projeto experimental completamente aleatório com quatro réplicas de 25 sementes cada. Os tratamentos foram: físicos, mecânicos e combinados de escarificação. Neste contexto, foi possível estabelecer a qualidade das sementes indicando seus traços biométricos e caracterização colorimétrica, que são ferramentas vantajosas para uso como sistemas de classificação das espécies, uma vez que o tamanho e a cor das sementes mais adequadas para a obtenção das mudas foram determinados. Na avaliação da qualidade morfofisiológica das sementes, foi feita a interpretação dos testes de viabilidade baseados em padrões e detecção de danos por métodos destrutivos e não-destrutivos. Dos tratamentos pré-germinativos considerados nesta pesquisa, o método de escarificação física por imersão das sementes durante 15 minutos em água a 100 ºC, com resfriamento em água à temperatura ambiente, teve uma influência direta na maioria dos parâmetros analisados para promover o surgimento de mudas.

Carbohydrate Metabolism in Bacteria: Alternative Specificities in ADP-Glucose Pyrophosphorylases Open Novel Metabolic Scenarios and Biotechnological Tools Bhayani, Jaina; Iglesias, María Josefina; Minen, Romina Inés; Cereijo, Antonela Estefanía; Ballicora, Miguel A.; Iglesias, Alberto Alvaro; Asención Diez, Matías Damián We explored the ability of ADP-glucose pyrophosphorylase (ADP-Glc PPase) from different bacteria to use glucosamine (GlcN) metabolites as a substrate or allosteric effectors. The enzyme from the actinobacteria Kocuria rhizophila exhibited marked and distinctive sensitivity to allosteric activation by GlcN-6P when producing ADP-Glc from glucose-1-phosphate (Glc-1P) and ATP. This behavior is also seen in the enzyme from Rhodococcus spp., the only one known so far to portray this activation. GlcN-6P had a more modest effect on the enzyme from other Actinobacteria (Streptomyces coelicolor), Firmicutes (Ruminococcus albus), and Proteobacteria (Agrobacterium tumefaciens) groups. In addition, we studied the catalytic capacity of ADP-Glc PPases from the different sources using GlcN-1P as a substrate when assayed in the presence of their respective allosteric activators. In all cases, the catalytic efficiency of Glc-1P was 1–2 orders of magnitude higher than GlcN-1P, except for the unregulated heterotetrameric protein (GlgC/GgD) from Geobacillus stearothermophilus. The Glc-1P substrate preference is explained using a model of ADP-Glc PPase from A. tumefaciens based on the crystallographic structure of the enzyme from potato tuber. The substrate-binding domain localizes near the N-terminal of an α-helix, which has a partial positive charge, thus favoring the interaction with a hydroxyl rather than a charged primary amine group. Results support the scenario where the ability of ADP-Glc PPases to use GlcN-1P as an alternative occurred during evolution despite the enzyme being selected to use Glc-1P and ATP for α-glucans synthesis. As an associated consequence in such a process, certain bacteria could have improved their ability to metabolize GlcN. The work also provides insights in designing molecular tools for producing oligo and polysaccharides with amino moieties.

Type II supernovae from the Carnegie Supernova Project-I: II. Physical parameter distributions from hydrodynamical modelling Martinez, Laureano; Bersten, Melina Cecilia; Anderson, J. P.; Hamuy, Mario; González Gaitán, S.; Förster, F.; Orellana, Mariana Dominga; Stritzinger, Maximilian; Phillips, M. M.; Gutiérrez, C. P.; Burns, C.; Contreras, C.; de Jaeger, T.; Ertini, Keila Yael; Folatelli, Gaston; Galbany, Lluís; Hoeflich, Peter; Hsiao, Eric; Morrell, Nidia Irene; Pessi, Priscila Jael; Suntzeff, Nicholas B. Linking supernovae to their progenitors is a powerful method for furthering our understanding of the physical origin of their observed differences while at the same time testing stellar evolution theory. In this second study of a series of three papers where we characterise type II supernovae (SNe II) to understand their diversity, we derive progenitor properties (initial and ejecta masses and radius), explosion energy, and 56Ni mass and its degree of mixing within the ejecta for a large sample of SNe II. This dataset was obtained by the Carnegie Supernova Project-I and is characterised by a high cadence of SNe II optical and near-infrared light curves and optical spectra that were homogeneously observed and processed. A large grid of hydrodynamical models and a fitting procedure based on Markov chain Monte Carlo methods were used to fit the bolometric light curve and the evolution of the photospheric velocity of 53 SNe II. We infer ejecta masses of between 7.9 and 14.8 M, explosion energies between 0.15 and 1.40 foe, and 56Ni masses between 0.006 and 0.069 M. We define a subset of 24 SNe (the gold sample) with well-sampled bolometric light curves and expansion velocities for which we consider the results more robust. Most SNe II in the gold sample (88%) are found with ejecta masses in the range of 810 M, coming from low zero-age main-sequence masses (912 M). The modelling of the initial-mass distribution of the gold sample gives an upper mass limit of 21.3{+3.8} {-0.4}M and a much steeper distribution than that for a Salpeter massive-star initial mass function (IMF). This IMF incompatibility is due to the large number of low-mass progenitors found when assuming standard stellar evolution. This may imply that high-mass progenitors lose more mass during their lives than predicted. However, a deeper analysis of all stellar evolution assumptions is required to test this hypothesis.

Type II supernovae from the Carnegie Supernova Project-I: III. Understanding SN II diversity through correlations between physical and observed properties Martinez, Laureano; Anderson, J. P.; Bersten, Melina Cecilia; Hamuy, Mario; González-Gaitán, S.; Orellana, M.; Stritzinger, M. D.; Phillips, M. M.; Gutiérrez, C. P.; Burns, C.; de Jaeger, T.; Ertini, Keila Yael; Folatelli, Gaston; Förster, F.; Galbany, Lluís; Hoeflich, Peter; Hsiao, Eric; Morrell, Nidia Irene; Pessi, Priscila Jael; Suntzeff, Nicholas B. Type II supernovae (SNe II) show great photometric and spectroscopic diversity which is attributed to the varied physical characteristics of their progenitor and explosion properties. In this study, the third of a series of papers where we analyse a large sample of SNe II observed by the Carnegie Supernova Project-I, we present correlations between their observed and physical properties. Our analysis shows that explosion energy is the physical property that correlates with the highest number of parameters. We recover previously suggested relationships between the hydrogen-rich envelope mass and the plateau duration, and find that more luminous SNe II with higher expansion velocities, faster declining light curves, and higher 56Ni masses are consistent with higher energy explosions. In addition, faster declining SNe II (usually called SNe IIL) are also compatible with more concentrated 56Ni in the inner regions of the ejecta. Positive trends are found between the initial mass, explosion energy, and 56Ni mass. While the explosion energy spans the full range explored with our models, the initial mass generally arises from a relatively narrow range. Observable properties were measured from our grid of bolometric LC and photospheric velocity models to determine the effect of each physical parameter on the observed SN II diversity. We argue that explosion energy is the physical parameter causing the greatest impact on SN II diversity, that is, assuming the non-rotating solar-metallicity single-star evolution as in the models used in this study. The inclusion of pre-SN models assuming higher mass loss produces a significant increase in the strength of some correlations, particularly those between the progenitor hydrogen-rich envelope mass and the plateau and optically thick phase durations. These differences clearly show the impact of having different treatments of stellar evolution, implying that changes in the assumption of standard single-star evolution are necessary for a complete understanding of SN II diversity.

Mudstones as Landfill Liner Material for Heavy Metal Removal: Equilibrium and Dynamic Sorption Study Musso, Telma Belén; Carlos, Luciano; Parolo, Maria Eugenia; Francisca, Franco Matias; Pettinari, Gisela Roxana; Giuliano, Valeria Noemí; Ruffato, Marianerla Clay materials used as low-permeability barriers at landfill sites can also chemically attenuate inorganic contaminants (heavy metals) in leachate. In this study, Cu(II) removal capacity from aqueous media of a raw calcareous mudstone, used as a liner material, was evaluated through both batch and column tests. Batch experiments were conducted varying contact time, pH, and Cu(II) concentration. In order to simulate waste leachates composition, the effect of the presence of some organic compounds on Cu(II) uptake was also evaluated. Column tests of compacted calcareous mudstone-sand mixtures were performed to evaluate sorption in dynamic systems. The studied calcareous mudstone exhibited higher removal capacity in a wider pH range than a commercial Na-bentonite, which is a widely used heavy metal sorbent and clay liner. It was evidenced that calcite, an important component of the calcareous mudstone and found as very small and highly porous calcareous nannofossils, contributed to its sorption properties playing a significant role in the Cu(II) removal. The presence of an anionic surfactant or phenol slightly affected the removal of Cu(II). In the clay fraction (< 2 µm), Cu(II) sorption was favored by the presence of humic acids, which add new adsorption sites for this metal. The extremely high retardation factor obtained for the raw calcareous mudstone is in good agreement with the high adsorption capacity experimentally proved in batch tests and demonstrated a great ability of this material to retain heavy metal mass during the transport in solution within porous media.

Distribution, Sedimentology and Origin of Mineralogical Assemblages from a Continental Na-bentonite Deposit in the Cretaceous Neuquén Basin (Argentina) Musso, Telma Belén; Pettinari, Gisela Roxana; Pozo, Manuel; Martínez, Alexis Gabriel; González, Rafael Collected samples of bentonite and associated facies from the Justina deposit of Cretaceous age (Anacleto Formation) have been studied. Facies analysis, mineralogical, and geochemical studies have been carried out using several techniques, including: XRD, FTIR, DTA-TGA, microscopy (OM, SEM-EDX), and chemical analysis. The deposit occurs in a shallow, saline lacustrine environment developed over a fluvial floodplain, with a thickness between 0.21 and 0.8 m intercalated between fine-grained siliciclastic facies. Three mineral assemblages were found. In assemblage 1, the bentonite has low content of detrital minerals and the smectite is sodic. In assemblage 2, the bentonite shows the occurrence of minor analcime and mica, slightly higher detrital mineral content and the smectite is sodic to sodic-calcic. The associated detrital facies (assemblage 3) is dominated by illite and a mixed layer of illite and calcic smectite (R0), subordinately kaolinite + chlorite, and locally low-ordered smectite. As inherited minerals are found: quartz, potassium feldspar, plagioclase, illite-mica, heavy minerals (monazite, zircon, apatite, titanomagnetite) and volcanic rock fragments (andesite, glass). Authigenic minerals are: sodium smectite, analcime, barite, celestine, gypsum, and hematite. A model for the formation of authigenic minerals is proposed, highlighting the formation of sodic smectite from the alteration of volcanic glass of trachyandesitic composition.

Procedure for assessing the liquefaction vulnerability of tailings dams Ledesma, Osvaldo; Sfriso, Alejo Oscar Sfriso; Manzanal, Diego This paper presents a procedure to assess the vulnerability of tailings dams to failure due to flow liquefaction. Vulnerability is understood as the inability of a system to resist adverse actions. The procedure uses a numerical model to verify if a set of actions that induce undrained shear in the tailings would result in a progressive failure and instability of the system. The procedure is tested by applying it to the well-documented Fundão Dam failure. The undrained behavior of loose tailings, including the onset of liquefaction and post-peak loss of strength, are simulated using the state parameter-based constitutive model, Modified Pastor-Zienkiewicz (MPZ), implemented as a user-defined model in Plaxis. Three actions are analyzed that cover most of the stress paths leading to the failure of tailings dams as geotechnical structures: (i) a surface load applied on the crest of the dam; (ii) a horizontal deformation at the toe, and (iii) a rise in the phreatic surface within the tailings. These three actions were applied to the Fundão Dam case and used to evaluate the vulnerability of two relevant configurations in the dam's history. This example is intended to illustrate that the proposed procedure can be used to assess the vulnerability of tailings dam failure to flow liquefaction using currently available modelling tools and standard laboratory and field characterization. While not part of the proposed actions, an additional analysis was conducted to assess the Fundão Dam's response to the failure mechanism identified in the post-failure report.

A multipurpose biocapture nanoplatform based on multiwalled-carbon nanotubes non-covalently functionalized with avidin: Analytical applications for the non-amplified and label-free impedimetric quantification of BRCA1 López Mujica, Michael Earvin Jose; Rubianes, María Dolores; Rivas, Gustavo Adolfo We introduce an innovative and versatile multipurpose biocapture nanoplatform made of multi-walled carbon nanotubes (MWCNTs) non-covalently functionalized with avidin (Av) as support to immobilize a biorecognition element just by mixing them in solution. As proof-of-concept of the advantages of this platform, we propose a non-amplified and label-free impedimetric BRCA1 biosensor prepared by immobilization of a biotinylated DNA probe (bDNAp) at MWCNTs-Av nanoplatform and further deposition of the resulting biosensing layer at glassy carbon (GCE) or screen printed carbon (SPCE) electrodes. The hybridization event was detected from the changes in the charge transfer resistance (Rct) of [Fe(CN)6]3-/4-. The resulting genosensor made possible the fast, highly sensitive and selective quantification of BRCA1 in a simple way, with a linear range between 1.0 fM and 10 nM, a sensitivity of (460 ± 9) ΩM−1 (r2 = 0.997), a detection limit of 330 aM and a quantification limit of 1.0 fM. The reproducibility was 5.2% and 4.6% for 1.0 × 10−12 M and 1.0 × 10−14 M BRCA1, respectively, using the same MWCNTs-Av-bDNAp platform, and 5.2% for 1.0 × 10−12 M BRCA1 using 5 different platforms. The biosensor was challenged with fully non-complementary and mismatch DNA sequences, and mixtures of them, without interference. The detection of BRCA1 in enriched diluted human serum samples showed excellent recovery percentages.

Disyuntivas entre la valuación catastral y los precios de mercado del suelo vacante. El sector de la avenida Presidente Perón, Tucumán; Dilemmas between cadastral valuation and vacant land market prices. The section of Presidente Perón Avenue, Tucuman; Disjuntivas entre a avaliação cadastral e os preços do mercado do solo desocupado. O setor da Av. Presidente Perón, Tucumán Cichero, Pilar; Gómez López, Claudia El Estado al urbanizar, produce un aumento en el valor del suelo, cuyo beneficio, si se distribuye de manera diferencial, contribuye a la especulación inmobiliaria. En la conformación del Área Metropolitana de Tucumán, el sector con mayor dinámica y expansión en las tres últimas décadas es el borde pedemontano hacia el oeste, perteneciente mayoritariamente al municipio de YerbaBuena. La apertura de la avenida Presidente Perón tuvo una gran incidencia en el sector, ya que la superficie del suelo urbano se triplicó, durante dicho período. En este artículo se analizan los precios de mercado del sector de la avenida Presidente Perón, comparándolos con sus valores catastrales e identificando algunas estrategias inmobiliarias utilizadas por promotores inmobiliarios para maximizar los beneficios del mercado de suelo. La metodología utilizada es de enfoque mixto y se realiza a partir de tres etapas: La construcción de una base de datos; una instancia analítica y por último, el desarrollo de las principales reflexiones.; When the state creates urban developments, it increases land value. If the profit from this is unequally distributed, it contributes to real estate speculation. In the organization of the Metropolitan Area in Tucuman, the sector showing the greatest dynamics and growth over the last three decades is the foothills to the West, mainly in the Yerba Buena district. The opening of President Perón Avenue had a great impact on the sector, because the urban surface tripled the period of time mentioned above. The aim of this article is to analyze market values in President Perón Avenue sector and to compare them with cadastral values applied by the State. It also presents some marketing strategies applied by real state agencies to maximize their profits. This research work is bases on a blended approach, which is divided into three different stages: building a database, the analysis of data and lastly, the posing of main conclusions.; O Estado quando urbaniza produz um aumento no valor do solo, cujo benefício, se for distribuído de forma diferencial, contribui à especulação imobiliária. Na constituição da Área Metropolitana de Tucumán o setor com maior dinâmica e expansão nas últimas três décadas é a borda da floresta de pedemontana, para o oeste, que pertence majoritariamente ao município de Yerba Buena. A apertura da Av. Presidente Perón teve uma grande incidência no setor já que a superfície do solo urbano se triplicou durante esse período. Neste trabalho analisam-se os preços de mercado do setor da Av. Presidente Perón, comparando-os com os valores cadastrais e identificando algumas estratégias imobiliárias usadas por promotores imobiliários para maximizar os benefícios do solo. A metodologia usa uma abordagem mista e realiza-se a partir de três etapas: a construção de uma base de dados; uma instancia analítica, e o desenvolvimento de reflexões.

Aproximaciones para un análisis sobre la clase trabajadora judía de Buenos Aires en las primeras décadas del siglo XX, 1905-1930; Abordagens para uma análise da classe trabalhadora judia de Buenos Aires nas primeiras décadas do século XX, 1905-1930 Koppmann, Walter Ludovico El artículo presenta los lineamientos teóricos y metodológicos principales de una investigación actualmente en curso, sobre la clase trabajadora judía de Buenos Aires entre los años 1905 y 1930. A partir de un diálogo interdisciplinar entre el campo de estudios migratorios y la historia social y política, se propone reconstruir la experiencia urbana del grupo étnico, sus particularidades así como también sus similitudes con otros casos nacionales. Para realizar esta investigación nos valimos de bibliografía secundaria.; O artigo apresenta as principais linhas teóricas e metodológicas de uma pesquisa em andamento sobre a classe trabalhadora judaica de Buenos Aires, entre 1905 e 1930. A partir de um diálogo interdisciplinar entre o campo dos estudos migratórios e da história social e política, propõe-se a reconstruir a experiência urbana do grupo étnico, suas particularidades assim como suas semelhanças com outros casos nacionais. Para a realização desta pesquisa utilizamos fontes secundárias.

"Me encanta ir al cine": Theodor W. Adorno más allá de la iconoclasia; "I Love to Go to the Movies". Theodor W. Adorno Beyond Iconoclasm Roldán, Eugenia María En sintonía con algunas reflexiones del campo de la estética que han señalado cómo, al postular un relego o incluso desprecio de Theodor W. Adorno por el cine, la mayoría de las recepciones empobrecieron el potencial crítico del pensamiento adorniano, el presente artículo avanza en algunos aspectos de la reflexión estética de Adorno sobre el cine. Por un lado, ponemos de relieve una lectura materialista y dialéctica de la afamada categoría de industria cultural. Por otro, llamamos la atención sobre el lugar central que tienen las primeras películas y reflexiones teóricas de Alexander Kluge para la postulación adorniana de una estética específica del cine. En ese marco, el artículo presenta uno de los problemas estéticos más interesantes que surgen del planteo de Adorno en diálogo con Kluge - y que, además, marca la actualidad de la empresa: pensar el cine contra la imagen. De allí se desprenden las consideraciones sobre un tipo de cine autoconsciente de sus aspectos formales, una reflexión sobre la imagen más allá de su carácter referencial y la centralidad de la técnica del montaje. Hacia el final, exponemos cómo en Adorno el cine muestra su afinidad con la experiencia subjetiva y con la escritura.; In accordance with some contributions from the field of aesthetics that point out how, by postulating a relegation or even contempt of Theodor W. Adorno for cinema, most receptions have impoverished the critical potential of Adorno’s thought, this paper moves forward on some aspects of Adorno’s aesthetic consideration of cinema. On the one hand, we highlight a materialist and dialectical reading of Adorno’s famous category of culture industry. On the other, we draw attention to the central place of Alexander Kluge’s early films and theoretical insights for Adorno’s postulation of a specific aesthetics of cinema. In this context, the paper revisits Adorno’s thought on cinema, considering one of the most interesting aesthetic problems that arises from his relation to Kluge: thinking cinema against the image. In this point, we highlight the reflection on a cinema that is self-aware of its formal aspects, on the image beyond its referential character and on the montage technique. At the end, we set out how cinema, from Adornos point of view, shows its affinity with writing and subjective experience.

Modeling and Analysis of Social Phenomena: Challenges and Possible Research Directions Vazquez, Federico This opening editorial aims to interest researchers and encourage novel research in the closely related fields of sociophysics and computational social science. We briefly discuss challenges and possible research directions in the study of social phenomena, with a particular focus on opinion dynamics. The aim of this Special Issue is to allow physicists, mathematicians, engineers and social scientists to show their current research interests in social dynamics, as well as to collect recent advances and new techniques in the analysis of social systems.

Flow invariants in a channel obstructed by a line of inclined rods Herrero, Víctor Angel; Ferrari, Hernan Javier; Marino, R.; Clausse, Alejandro An experiment is conducted in a rectangular channel obstructed by a transverse line of four inclined cylindrical rods. The pressure on the surface of a central rod and the pressure drop through the channel are measured varying the inclination angle of the rods. Three assemblies of rods with different diameters are tested. The measurements were analyzed applying momentum conservation principles and semi-empirical considerations. Several invariant dimensionless groups of parameters relating the pressure at key locations of the system with characteristic dimensions of the rods are produced. It was found that the independence principle holds for most of the Euler numbers characterizing the pressure at different locations, that is, the group is independent of the inclination angle provided that the inlet velocity projection normal to the rods is used to non-dimensionalize the pressure. The resulting semi-empirical correlations can be useful for designing similar hydraulic units.