Stress effects on the impedance and ferroelectricity of PVDF- BiFeO3-MWCNT films using xanthan gum as dispersant Sosa, Mariana Daniela; Levy, Ivana Karina; Owusu, Francis; Nüesch, Frank; Opris, Dorina; Negri, Ricardo Martin; Saleh Medina, Leila María Composite films based on dispersions of bismuth ferrite (BiFeO3) in polyvinylidene fluoride (PVDF) matrixes were prepared in the presence of multiwalled-carbon-nanotubes (MWCNT), using xanthan gum (XG) as dispersant. Films were prepared by spin coating and characterized by infrared spectroscopy (FTIR) and electronic microscopy (SEM). SEM images showed that samples containing MWCNT and XG presented a uniform morphology with homogeneously dispersed fillers. Impedance spectroscopy analysis (ISA) up to 1 MHz and dielectric polarization curves (P-E loops) were recorded in the presence of applied unidirectional mechanical stresses (up to 10 MPa). The effect of stress on the dielectric permittivity and the relative remnant polarization was successfully described by a constitutive model, which assumes a linear dependence of the piezoelectric coefficient, d33, on the applied stress and the dielectric displacement.

Percepción del paisaje sonoro e identificación de estados emocionales durante el aislamiento preventivo, social y obligatorio frente al covid-19 en ciudadanos del norte de Argentina: Un enfoque desde la psicología ambiental Costas, José Miguel Este estudio analizó la percepción del entorno sonoro, la identificación de ciertas emociones y muestra una comparación de la percepcióndel sonido de la zona de residencia antes y durante el aislamiento social,preventivo y obligatorio ocurrido en Argentina el 20 de marzo de 2020. Larecolección de datos se realizó de manera online mediante la plataformade formularios Google, con respuestas obtenidas de la región Noroestedel país. Se utilizó como instrumento una encuesta autoadministrable condiferenciales semánticos y escalas Likert. Los resultados muestran una disminución en la percepción del ruido durante el aislamiento en las zonas deresidencia, pero la presencia de fuentes de carácter irritantes persistió conleves variaciones. En cuanto a los estados emocionales, emergió una estructura bidimensional del afecto con preponderancia de emociones negativas durante el momento del aislamiento. Existe una correlación bajapero significativa entre la percepción del ruido y ciertos estados emocionales.; This study analyzed the perception of the sound environment, the identification of certain emotions and shows a comparison of the perception of sound in the area of residence before and during the social, preventive and compulsory isolation that occurred in Argentina on March 20- 2020. The collection of data was carried out online using the Google forms platform, with responses obtained from the Northwest region of the country. A self-administered survey with semantic differentials and Likert scales was used as an instrument. The results show a decrease in the perception of noise during isolation in the areas of residence, but the presence of irritating sources persisted with slight variations. Regarding emotional states, a two-dimensional structure of affect emerged with a preponderance of negative emotions during the time of isolation. There is a low but significant correlation between the perception of noise and certain emotional states.

The transition to electric mobility: opportunities for the automotive value chain in Argentina Dulcich, Federico Martín; Porta, Fernando Enrique; Ubogui, Matias; Baruj, Gustavo Andrés The current transition from internal combustion engine vehicles to electric vehicles opens windows of opportunity for the repositioning of firms and countries in global and regional automotive value chains. The objective of this paper is to study these opportunities posed for the automotive chain in Argentina. The main results show that Argentina lags behind in the production and diffusion of electric vehicles and has a low deployment of the charging infrastructure. However, this transition would be an opportunity for Argentina to reposition itself in the regional automotive value chains; and its growing specialisation in pickups could position it in the nascent electric pickup market, without large, consolidated players. At the same time, there are opportunities to increase the national integration of parts and components of the electric powertrain and reduce the high incidence of imports of auto parts.

Eficiencia energética envolventes de vinificación: Estudio de casos de nuevas tecnologías vs tradicionales; Winemaking envelopes energy efficiency: New technologies vs. traditional comparative study cases Ramos Sanz, Alba El presente trabajo aborda un estudio de casos comparativo entre dos tecnologías de tanques de vinificación, nuevas y tradicionales, con el fin de determinar el comportamiento energético de los modelos de producción del vino, en relación con el clima de la zona vitivinícola considerada. Se aborda el proceso de vinificación más común y energéticamente intensivo de las bodegas; la fermentación del mosto durante el período de verano. Mediante datos empíricos obtenidos con observación simple registrada con sensores de temperatura, procesados con softwares estadísticos, se establecen estadígrafos, distribuciones de probabilidad, correlaciones y modelos lineales bivariados. Con esta información se determina la tasa energética de cada modelo tecnológico productivo. Desde los diversos enfoques considerados, los resultados obtenidos indican que la nueva tecnología de envolvente de fermentación presenta una mayor tasa energética por unidad de producto (kWh/L) que la tecnología de envolvente tradicional, y que esta diferencia se asocia a las temperaturas de la zona climática de estudio.; The present work deals with a comparative case study between two technologies of winemaking tanks, new and traditional ones, to determine the energetic performance of wine production models in relation to the climate zone. The wineries' most common and energy-intensive winemaking process is addressed; fermentation of the must during summer. Using empirical data obtained by simple observations with temperature sensors, processed with statistical software, coefficients of variation, probability distribution, correlations, and bivariate models. With this information, the energy rate of each productive technological model is determined. From different approaches, the results obtained in the interior temperatures of both technological models indicate that the new fermentation envelope technology presents a higher energy rate per unit of product (kWh / L) than traditional envelope technology, and that difference is explained by outsider temperature from the climatic study area.

Influence of land-use changes on microbial community structure and diversity in a semiarid region Vázquez, Carolina; Verdenelli, Romina Aylen; Merlo, Carolina; Perez Brandan, Carolina Gabriela; Kowaljow, Esteban; Meriles, Jose Manuel Land-use change and the conversion of land into croplands is one of the main drivers of soil degradation and the loss of soil organic carbon. Few studies have evaluated the impact of the expansion of the agricultural frontier on soil microbial communities in the Gran Chaco region in South America; therefore, the objective of this study was to explore how soil microbial communities respond to land-use changes in a semiarid region of Argentina. The land uses selected were total and selective clearing with livestock (TC-livestock and SC-livestock), total clearing with agriculture (TC-agriculture), and an undisturbed site (R-Chancaní). Our results suggest that microbial abundances were strongly influenced by seasonal changes. In both seasons, the lowest values of total microbial biomass were observed in TC-agriculture and TC-livestock. In the wet season, TC-agriculture had the lowest fungal abundance, and both total clearing sites (TC-livestock and TC-agriculture) had higher bacterial abundance than the other sites. Our data also showed that the Shannon and richness indices were highest at the farming sites, indicating a similar tendency in the diversity indexes in both dry and wet seasons. According to Pearson correlation analysis, humic substance (HS) content was a key driver influencing soil microbial communities, demonstrating that high HS content may significantly increase bacteria, fungi, and total phospholipid fatty acids. Microbial composition highly depended on seasonal changes. Overall, our results suggest that land-use change altered microbial community structure and bacterial diversity, and that HS content played a crucial role in driving changes in soil microbial composition.

The influence of Hickson-like compact group environment on galaxy luminosities Zandivarez, Arnaldo Ariel; Díaz Giménez, E.; Taverna, Maria Antonela Compact groups of galaxies are devised as extreme environments where interactions may drive galaxy evolution. In this work, we analysed whether the luminosities of galaxies inhabiting compact groups differ from those of galaxies in loose galaxy groups. We computed the luminosity functions of galaxy populations inhabiting a new sample of 1412 Hickson-like compact groups of galaxies identified in the Sloan Digital Sky Survey Data Release 16. We observed a characteristic absolute magnitude for galaxies in compact groups brighter than that observed in the field or loose galaxy systems. We also observed a deficiency of faint galaxies in compact groups in comparison with loose systems. Our analysis showed that the brightening is mainly due to galaxies inhabiting the more massive compact groups. In contrast to what is observed in loose systems, where only the luminosities of Red (and Early) galaxies show a dependency with group mass, luminosities of Red and Blue (also Early and Late) galaxies in compact groups are affected similarly as a function of group virial mass. When using Hubble types, we observed that elliptical galaxies in compact groups are the brightest galaxy population, and groups dominated by an elliptical galaxy also display the brightest luminosities in comparison with those dominated by spiral galaxies. Moreover, we show that the general luminosity trends can be reproduced using a mock catalogue obtained from a semi-analytical model of galaxy formation. These results suggest that the inner extreme environment in compact groups prompts a different evolutionary history for their galaxies.

Hacia la construcción de un proyecto pedagógico del Centro Universitario San Martín (CUSAM) Lombraña, Andrea Natalia; Strauss, Luciana; Tejerina, Diego Martin Cuando una institución universitaria ingresa a una institución penitenciaria, se ponen en juego una serie de relaciones y sentidos que involucran y cruzan estudiantes, docentes, autoridades académicas, detenidos, agentes y funcionarios del servicio penitenciario, así como determinados espacios (aulas, pabellones, lugares de reunión y encuentro, pasillos), objetos, cuerpos, lenguajes y dispositivos pedagógicos que coexisten con dispositivos de seguridad. El Centro Universitario de San Martín (CUSAM) lleva casi catorce años de funcionamiento en la Unidad 48 de José León Suárez, su historia está íntimamente relacionada con el territorio y organizaciones sociales de San Martín. La oferta curricular está compuesta por la carrera de Sociología —que ya cuenta con seis graduados—, Trabajo Social, la Diplomatura en Gestión Cultural y Comunitaria, así como por talleres artísticos y de oficios. A diferencia de otros espacios educativos que funcionan en instituciones de encierro, el CUSAM es el único centro educativo en América Latina donde comparten el aula detenidos y agentes del servicio penitenciario. Nos proponemos, a partir de la experiencia de CUSAM y en diálogo con otros programas similares, presentar algunas pistas que contribuyan a la producción de un conocimiento pedagógico específico y en constante construcción, para la enseñanza y el aprendizaje en el encierro en una unidad penitenciaria del conurbano bonaerense, pero también en otros espacios educativos que funcionan en contextos críticos.; The CUSAM is a campus of the Universidad Nacional de San Martín that is located at the Unit Nº48 in Complejo Penitenciario Norte, José León Suarez. It was founded in 2008 after an agreement between the university and the Servicio Penitenciario Bonaerense (SPB - the local penitentiary agency) with the aim of guaranteeing the right for education to both men and women deprived of ambulatory freedom, as well as SPB agents. A large part of its students come from communities nearby the prison and have experienced the deficiency of their most basic rights before entering prison. This paper describes the main characteristics acquired by teaching-learning practices at CUSAM through the general analysis of the pedagogical guidelines of the project which, far from being defined, are subject to constant debate and reworking. Throughout the text are established three central topics on which this university project is based on: its roots with the territory, the collective nature of the proposal and the deployment of a critical pedagogy in its development. Finally this paper identifies the contact and possible tensions with popular education models and the contributions that these theories can generate in the construction of educational projects in the context of confinement are analyzed.

Factores que afectan la participación social de adultos con traumatismo craneoencefálico: Una revisión sistemática; Factors affecting social participation in adults with traumatic brain injury: A systematic review Leiva, Samanta Daniela; Bacigalupe, Lucía; Caamaño, Maria Paula Objetivo. La participación social es el acto de involucrarse en actividades que proporcionaninteracciones con otras personas, y puede verse afectada en personas que han sufrido un traumatismo craneoencefálico (TCE). Este trabajo propone identificar qué factores influyen en dicha afectación. Método. Se realizó una revisión sistemática de artículos disponibles en PubMed, EBSCO y SCOPUS, publicados desde 2010 hasta 2020. Resultados. Los artículos revisados concuerdan que la participación social de los pacientes adultos con TCE se ve afectada por las siguientes variables: síntomas depresivos, edad, nivel educativo, alteraciones cognitivas y calidad de vida. Finalmente, se observó que la evaluación de la participación social está focalizada en la frecuencia con que los pacientes realizan actividades sociales y no indagan en la satisfacción personal con el nivel de participación.; Objective. Social participation is the act of getting involved in activities that provide interactions with other people and can be impaired in individuals who suffered a traumatic brain injury (TBI). This study aims to identify which factors influence social participation after TBI. Method. A systematic review of articles available in PubMed, EBSCO, and SCOPUS, published from 2010 to 2020 was conducted. Results. Revised articles conclude that social participation in adult patients with TBI is affected by the following variables: depressive symptoms, age, educational level, cognitive impairment, and quality of life. Finally, the focus of the assessment of social participation was the frequency with patients carrying out social activities and not the personal satisfaction with their level of participation.

Inocencia, pureza y abnegación. la construcción de la imagen de María Eugenia Vidal en las elecciones de la provincia de Buenos Aires, Argentina (2015) Rosso, Germán Este trabajo se propone estudiar la construcción de la imagen de María Eugenia Vidal en las elecciones provinciales de 2015. Se recuperan los aportes de los estudios iconográficos inspirados en Warburg y de la estética disposicionalista esbozada por Bourdieu para reflexionar acerca de las condiciones sociales e históricas que explican su efectividad en términos de producción de adhesiones políticas. De este modo se establece que la apariencia de Vidal remite a elementos simbólicos y visuales ligados, por un lado, a los imaginarios de la pureza y el desinterés en la iconografía mariana y, por otro, a las rutinas femeninas disponibles en la esfera política argentina. Es así como la imagen de Vidal pudo encarnar sensiblemente las ideas de “cercanía”, “transparencia” y “honestidad” pregonadas en la campaña de Cambiemos, así como también profundizar la polarización con su principal contrincante, acusado mediáticamente de vincularse con la corrupción y el narcotráfico. Finalmente, se articulan las conclusiones del presente trabajo con distintos estudios sociológicos sobre las formas de reclutamiento y trabajo territorial de PRO-Cambiemos, para destacar el modo en que cierta concepción desinteresada de la política, proveniente de las prácticas religiosas de caridad, constituye una de las vías de adhesión a esta fuerza.; This paper aims to study the construction of the image of Maria Eugenia Vidal in the 2015 provincial elections. The contributions of the iconographic studies inspired by Warburg and the dispositionalist aesthetic outlined by Bourdieu are recovered to reflect on the social and historical conditions that explain their effectiveness in terms of production of political supports. We establish that Vidal’s appearance refers to symbolic and visual elements linked, on the one hand, to the imaginaries of purity and disinterest in Marian iconography and, on the other hand, to the feminine routines available in the Argentine political sphere. This is how Vidal's image was able to embody the ideas of "closeness", "transparency" and "honesty" proclaimed in the Cambiemos campaign, as well as deepening the polarization with his main opponent, accused by the media of being involved in corruption and drug trafficking. Finally, the conclusions of the present work are articulated with sociological studies on the forms of recruitment and territorial work of PRO-Cambiemos, in order to highlight the way in which a certain disinterested conception of politics, coming from religious practices of charity, constitutes one of the forms of affinity with this force.

H-theorems for systems of coupled nonlinear Fokker-Planck equations Plastino, Ángel Ricardo; Wedemann, R. S.; Nobre, F. D. Nonlinear diffusion and Fokker-Planck equations constitute valuable tools in the study of diverse phenomena in complex systems. Processes described by these equations are closely related to thermostatistical formalisms based on generalized entropic functionals. Inspired by these relations, we explore the behavior of systems of coupled, nonlinear Fokker-Planck equations. In particular, we establish an H-theorem for a wide family of this type of systems. This H-theorem is formulated in terms of an appropriate free-energy-like functional. The nonlinear evolution equations discussed here include, as particular instances, those governing the dynamics of interacting multi-species, many-body systems in the overdamped-motion regime.

Dos caras de la participación ciudadana: Análisis sobre la inclusión - exclusión política en instancias presenciales y mediadas por aplicaciones Sorribas, Patricia Mariel; Gutiérrez, Mariana Carla; Mola, Débora Jeanette; Garay Reyna, Zenaida El análisis de las innovaciones institucionales para canalizar la participación ciudadana permite reconocer que pueden orientarse a la concreción o reforzamientos de proyectos "societales" muy diversos y contrastantes. En el presente trabajo nos proponemos abordar -mediante diversos enfoques teórico-metodológicos- diferentes instancias participativas para aportar evidencia a partir de la cual podamos contribuir a esta discusión. Los casos seleccionados corresponden a innovaciones institucionales implementadas en distintos niveles de gobierno (nacional, provincial y municipal), con variados diseños y que incentiva la participación ciudadana individual o colectiva.Con ese propósito principalmente consideramos qué tan inclusivas son cada una de las instancias analizadas y si tienden más al fortalecimiento del gobierno representativo que a la instalación progresiva de una concepción más participativa de la democracia a nivel municipal, provincial y nacional. La evidencia producida permite reconocer que en el caso de las JPV, el PP Barrial, las JPC-CB y la aplicación móvil del gobierno municipal la centralidad de la gestión encarada por los representantes en el gobierno -local o provincial- es explícita, fortaleciendo una concepción representativa de la democracia en ambos niveles de gobierno. En el caso de las políticas culturales de cultura comunitaria, la centralidad de la gestión nacional y municipal no es explícita, más bien resulta encubierta por la retórica de gestión conjunta. En ellas la participación plural en el marco de estas políticas ha resultado restringida y despotenciada por la debilidad institucional, pero también por efecto de una participación instrumental y corporativa.En términos de diversidad epistémica el conjunto de estas innovaciones no logran garantizar la inclusión de canales variados, abiertos y accesibles para que personas de todo tipo de recorrido de vida, en todas las posiciones sociales, expresen públicamente su disenso.

Mathematical models to assessment the energy performance of textured cladding for facades Alchapar, Noelia Liliana; Correa Cantaloube, Erica Norma The temperature increase of a city in relation to its peripheral areas leads to the formation of an Urban Heat Island. Working on the opto-thermal properties of the building envelope is a viable mitigation strategy to reduce the temperatures of a city. Having quantitative data on energy performance allows the development of precise evaluations and the selection of the most efficient data in relation to energy consumption. The degree of efficiency of a material is calculated with an indicator called Solar Reflectance Index (SRI). Since opto-thermal properties change over time, the standard recommends obtaining the SRI level of both new and three-year-aged material (SRI3). In the present work, 80 facade claddings were evaluated to: (a) determine which qualitative variables significantly influence the SRI3 of the claddings; (b) obtain an equation that calculates the SRI3 without the need to monitor the large number of variables used for its calculation. For this, the following statistical methods were used: Multifactorial ANOVA and linear regression model. In this correlational analysis, color, composition and texture were selected as independent variables. The research showed that color is the variable that significantly influences SRI3 in all the evaluated claddings. By means of the equation obtained with the regression model, the SRI3 index was predicted reaching 95% IC. These results significantly save time and simplify the process of obtaining data since it is not necessary to monitor numerous input variables to calculate the indicator.

Human macrophage polarization shapes B. pertussis intracellular persistence Valdez, Hugo Alberto; Marin Franco, Jose Luis; Gorgojo, Juan Pablo; Alvarez Hayes, Jimena; Balboa, Luciana; Fernandez Lahore, Marcelo; Sasiain, Maria del Carmen; Rodriguez, Maria Eugenia We previously demonstrated that Bordetella pertussis, the etiologic agent of whooping cough, is able to survive inside human macrophages. The aim of this study was to examine the influence of macrophage polarization in the development of B. pertussis intracellular infections. To this end, primary human monocytes were differentiated into M1, M2a, or M2c macrophages and further infected with B. pertussis. Infected M1 macrophages showed a proinflammatory response evidenced by the production of TNF-α, IL-12p70, and IL-6. Conversely, infection of M2a and M2c macrophages did not induce TNF-α, IL-12p70, nor IL-6 at any time postinfection but showed a significant increase of M2 markers, such as CD206, CD163, and CD209. Interestingly, anti-inflammatory cytokines, like IL-10 and TGF-β, were induced after infection in the 3 macrophage phenotypes. B. pertussis phagocytosis by M1 macrophages was lower than by M2 phenotypes, which may be ascribed to differences in the expression level of B. pertussis docking molecules on the surface of the different phenotypes. Intracellular bactericidal activity was found to be significantly higher in M1 than in M2a or M2c cells, but live bacteria were still detected within the 3 phenotypes at the late time points after infection. In summary, this study shows that intracellular B. pertussis is able to survive regardless of the macrophage activation program, but its intracellular survival proved higher in M2 compared with the M1 macrophages, being M2c the best candidate to develop into a niche of persistence for B. pertussis.

Brujas, exorcistas y posesas. Terror, policial y complot en Leonardo Oyola y Nicolás Correa; Witches, exorcists and possessed. Horror, police genre and conspiracy in Leonardo Oyola y Nicolás Correa Feuillet, Lucía El artículo aborda las novelas Santería y Sacrificio, de Leonardo Oyola y Súcubo e Íncubo, de Nicolás Correa, desde la perspectiva de la hermenéutica dialéctica propuesta por Fredric Jameson. El análisis se enfoca en algunos rasgos de los géneros policial y de terror para dar cuenta del complot como ideologema que expresa los antagonismos impuestos por el modo de producción social. Las voces transgresoras de una bruja, un exorcista y una posesa permiten acceder a estas historias que superponen lo cognoscible y lo esotérico, y articulan resistencias individuales que proyectan formas conspirativas de subversión.; This article analyzes the novels Santería and Sacrificio, by Leonardo Oyola, and Súcubo and Íncubo, by Nicolás Correa, from the perspective of the dialectical hermeneutics proposed by Fredric Jameson. The study focuses on some features of police genre and horror to account for the plot as an ideologeme that expresses the antagonisms imposed by the social mode of production. The transgressive voices of a witch, an exorcist and a possessed woman allow access to these stories that superimpose the knowable and the esoteric, and articulate conspirational resistances.

2-Nested Matrices: Towards Understanding the Structure of Circle Graphs Durán, Guillermo Enrique; Pardal, Nina; Safe, Martin Dario A (0, 1)-matrix has the consecutive-ones property (C1P) if its columns can be permuted to make the 1’s in each row appear consecutively. This property was characterized in terms of forbidden submatrices by Tucker in 1972. Several graph classes were characterized by means of this property, including interval graphs and strongly chordal digraphs. In this work, we define and characterize 2-nested matrices, which are (0, 1)-matrices with a variant of the C1P and for which there is also a certain assignment of one of two colors to each block of consecutive 1’s in each row. The characterization of 2-nested matrices in the present work is of key importance to characterize split graphs that are also circle by minimal forbidden induced subgraphs.

Resultados experimentales de BAC y PQ adsorbidos en MMT La mayoría de los estudios sobre surfactantes adsorbidos en arcillas se han centrado en mejorar la reactividad superficial de la arcilla para eliminar contaminantes. Sin embargo, este trabajo de investigación se estudió exhaustivamente cómo la presencia de tensioactivos en medios acuosos puede afectar a la adsorción de otras especies en la superficie de la arcilla. En un estudio anterior se observó que la adsorción de contaminantes catiónicos como el herbicida paraquat (PQ) y el metal pesado cadmio sobre la superficie de la arcilla montmorillonita (MMT) se ve afectada por la presencia del surfactante BAC. En el presente conjunto de datos de investigación se analizó el mecanismo del comportamiento competitivo entre PQ y BAC sobre MMT mediante la combinación de estudios experimentales complementados con un modelo teórico. Este modelo es conocido ya que describió el intercambio de cationes simples (por ejemplo, Na+, K+, Mg2+ y Ca2+) sobre minerales arcillosos. Aunque se aplicó satisfactoriamente para aclarar el intercambio entre los iones mencionados, hasta donde sabemos, este modelo no se ha utilizado para estudiar el intercambio entre cationes orgánicos más grandes como PQ y BAC.

One-hour social and reproductive behavioral time series of Japanese quail in diverse social environments We favor the conformation of divergent social environments by using the preselecting animals based on a combination of the 4 behavioral tests described in the project description. Social groups composed of three adult quail, 2 females and 1 male (156-171 days old). We evaluated social and reproductive behavior in these groups. Groups were housed in a white wooden apparatus measuring 80 x 40 x 40 cm (width x length x height, respectively) with wood-shavings on the floor. A feeder and an automatic nipple drinker were positioned in opposite corners of the apparatus. Nylon monofilament line was extended over the top of the boxes with a 1 cm separation in order to prevent the birds from escaping without interfering with their visualization. A video camera was suspended 1.5m above the box. Since only 4 social groups could be tested simultaneously, the setup was repeated 3 consecutive times. For convenience boxes in which each social group were placed were numbered 1-12, where boxes 1-4 were tested simultaneously first, 5-8 second and 9-12 last. We used the ANY-MAZE@ to register the following behaviors as described in Caliva et al. (2017) during a one-hour period between 9 and 10 am inmediatly after placing in box (Day1) after 48h of habituation to the novel setting (Day3): Pecks: when one bird raises its head and vigorously pecks the other bird?s body (usually on the head). Grabs: when a male catches (?grabs?) with their beak the neck or head region of the female. Mounts: while performing a grab, the male approaches a female from behind, and places both feet on the dorsal surface of its torso, stepping over the females? tail. Cloacal contacts: during mounting, the male lifts his tail and tilts his pelvis underneath the other bird and briefly presses its cloaca against the female. Threats: one bird stands with its neck and head raised in front of the other bird that usually has its head at a lower level than the first. Chase: a bird runs after another that is escaping. Foraging: pecking at the ground or actively moving litter with beak. Feeding: peaking at food in the feeding trough. Dust bathing: vertical wing shakes in a lying position . Time series denote with the number one changes towards actively performing the given behavior, while the number zero indicates cessation of that behavior. All time series are stored as text files (.txt). Considering that the 36 animals were evaluated in 12 mixed-sex groups of 3 birds in individual experimental boxes, each subject quail was identified by their experimental group number (Box), ID number of wing band, and sex (femaleA, femaleB or male). In the case of females an indication A or B is used to discriminate between the two. In the file name an indication of the corresponding bird is provided as "BoxNº_IDNº_sex_DayNº" Data descriptor submitted to Sci Data "High resolution behavioral time series of Japanese quail within their their social environment"

Emergent networks in fractional percolation Es el algoritmo que se usó para la siguiente publicación: Valdez, Lucas D., and L. A. Braunstein. "Emergent networks in fractional percolation." Physica A: Statistical Mechanics and its Applications 594 (2022): 127057.

Rearranging Marital Settlement Agreements post-pandemics; Revisión de los acuerdos económicos post divorcio ante la crisis Gonzalez, Eliana Mabel Los efectos de la pandemia pueden medirse no sólo por su impacto directo en la salud de la población, sino también por sus efectos colaterales. Este trabajo examina el posible impacto de la crisis en los acuerdos económicos post divorcio. La pandemia pudo haber provocado que la situación económica de las partes haya cambiado drásticamente, incluso en algunos casos de forma permanente, desencadenando un incumplimiento de estos acuerdos. Incluso pueden haberse modificado las circunstancias que habían sido tenidas en cuenta por las partes o por los jueces para atribuir algunos derechos. Por ello, nos preguntamos si los acuerdos que contemplan previsiones económicas post divorcio podrían ser revisados. Si bien el legislador argentino ha previsto expresamente que el convenio homologado o la decisión judicial puedan ser revisados si la situación se ha modificado sustancialmente (Art.440), la diferente naturaleza jurídica de cada uno de los dispositivos (alimentos, atribución del uso de la vivienda, compensaciones económicas, distribución de bienes, etc.) amerita un tratamiento diferenciado. Entre los recursos que nos ofrece el Derecho Privado Argentino vigente, destacamos la posibilidad de aplicar la Teoría de la imprevisión, cuando la prestación a cargo de al menos una de las partes se ha tornado excesivamente onerosa por una alteración extraordinaria de las circunstancias. Por esta vía podría obtenerse la resolución del convenio o tal vez su reajuste. Son tiempos difíciles, y requieren de la mejor predisposición de todos para pensar soluciones creativas y temporarias, en términos de necesidades y posibilidades, atendiendo a las circunstancias excepcionales que pueden estar atravesando las partes, sobre todo los más vulnerables. En este contexto, es esencial crear un clima colaborativo; pero también que la mala conducta de las partes durante la crisis sea duramente sancionada. Finalmente, un criterio que no puede soslayarse es el impacto desproporcionado de la crisis en sujetos vulnerables (mujeres, niños, adultos mayores, etc.), que siempre deberá inclinar la balanza en favor de su protección.; The effects of the pandemic can be measured not only by its direct impact on the health of the population, but also by its collateral effects. This paper examines the possible impact of the crisis on marital settlement agreements. The pandemic might have caused personal financial situations to change dramatically, some permanently, which could be the trigger of contract breach. Also, the lockdown might have modified the circumstances that have been taken into account by the parties when making those agreements. We therefore wonder if these agreements could be reviewed. The Argentinian legislator has provided that an approved agreement or even a judicial decision can be reviewed if the situation has changed substantially (Article 440 Argentinian Civil and Commercial Code). However, the different legal nature of these financial provisions (alimony, child support, attribution of the use of the marital home, economic compensation, property distribution, etc.) forces us to adopt a differentiated approach. Among the legal tools offered by our Private Law, we highlight the possibility of applying the ‘Theory of Unpredictability’ which takes place when the contractual duties have become excessively onerous due to an extraordinary alteration of the circumstances. As a result, the contract could be renegotiated (which would permit its continuation), or terminated. During these difficult times, it is essential to find creative solutions, taking into account the exceptional circumstances the parties may be going through (especially the most vulnerable) and their needs and possibilities. It is vital to build a collaborative climate; but also, that the misconduct of the parties during the crisis is severely punished. Finally, a criterion that cannot be ignored is the disproportionate impact of the crisis on vulnerable individuals (women, children, elderly, etc.), which must always tip the balance in favor of their protection.

Izquierda y derecha peronista como categorías de análisis o los 34 días de disputa institucional en torno a la Universidad de Buenos Aires, 1974; Peronist Left and Peronist Right as Analytic Categories or 34 Days of Institutional Disputes around the University of Buenos Aires, 1974 Friedemann, Sergio Martín El artículo contribuye al debate acerca de la pertinencia de las categorías de izquierda y derecha para abordar los conflictos intraperonistas de los 60/70 en Argentina. A través de fuentes orales y escritas, se analizan las disputas en torno a las políticas universitarias entre la Universidad de Buenos Aires y el Poder Ejecutivo Nacional a poco de comenzar el gobierno de Isabel Perón. Asimismo, se observan posiciones moderadas, centristas o con pretensión de equidistancia, concluyendo que izquierda y derecha peronista resultan categorías válidas como polos de un continuum más que como expresiones dicotómicas y excluyentes, aún en un contexto de polarización y competencia centrífuga.; This paper contributes to the debate on the pertinence of the categories of Left and Right to address the conflicts within Peronist factions in Argentina during the seventies. Through oral and written sources, it analyzes the disputes on higher education policies between the University of Buenos Aires and the National Executive Power shortly after the beginning of Isabel Perón’s government. Additionally, moderates, centrists, and so claimed equidistant positions are observed, concluding that Left and Right Peronism are valid categories as poles of a continuum rather than as dichotomous and mutually exclusive expressions, even in a context of polarization and centrifugal competition within the party.