Temperaturas corporales y ambientales para Telmatobius rubigo Se presentan tres conjuntos de datos: 1) Datos de temperaturas del agua y del aire del habitat de Telmatobius rubigo colectados durante los meses mas cálidos del año utilizando registradores automáticos de temperatura ambiental. 2) Datos de temperaturas corporales de Telmatobius rubigo colectados en sucesivos muestreos en la Puna jujeña. 3) Valores de temperatura crítica máxima para la especie. Estos datos se utilizaron para estimar la vulnerabilidad al calentamiento global de Telmatobius rubigo.

Effect of grasses on native tree seedling establishment along a water stress gradient: results of forest and greenhouse experiments Trinco, Fabio Daniel; Rusch, Verónica Elena; Cardozo, Andrea Gabriela; Garibaldi, Lucas Alejandro; Tittonell, Pablo Adrián Because of anthropogenic uses, such as cattle raising or forest clearings, some native forests show 17 an early successional grass stratum that can reduce or nullify native tree regeneration. We 18 hypothesize that increasing grass coverage lowers or nullifies native seedling establishment by 19 reducing or preventing water intake by the seed or seedling. The aim of this work is to assess the 20 effect of grasses over tree seedlings under varying soil water stress levels. We performed a field 21 experiment consisted of 36 experimental exclosures in two northwest Patagonian valleys, covering 22the regional gradient of altitude, rainfall, and tree canopy openness. We also conducted a 23 greenhouse experiment, consisted of 36 experimental pots with four levels of grass coverages, 24 under three levels of water stress. Correspondence has been observed between both experiments. 25 In the field experiment we found that the probability of finding an alive tree seedling is about 2.78 26 times higher in ungrassed sites compared to grassed ones. In the greenhouse experiment we found 27 that the presence of grasses reduced on average 43% the final number of established seedlings 28 over all irrigation levels, suggesting that a water competition process is occurring. Management 29 practices that induce the invasion of grass layer would negatively impact on tree regeneration in 30 forests that have not co-evolved with large herbivores. This situation can be exacerbated in regions 31 that show a water limitation in the growing season or where climate change can intensify water 32 stress conditions.

El punitivismo: Sus dimensiones desde una perspectiva psicológica y su incidencia en Argentina; El punitivisme: Les seves dimensions des d'una perspectiva psicològica i la seva incidència a l'Argentina; Punitivism: Its dimensions from a psychological perspective and its impact in Argentina Roca, Marcelo Agustin; Espósito Santamaría, Ariana; Casella, Florencia; Duhalde, Nahuel Hugo Ezequiel El punitivismo en sus comienzos fue abordado desde una perspectiva político penal. En la misma se observa esta demanda punitiva por parte de los ciudadanos ante la tendencia de políticas más severas. En los últimos años, el punitivismo se ha enfocado en otras áreas de interés como los medios de comunicación, la sociología y la psicología. A pesar de tener una extensa literatura académica, este constructo presenta escasas investigaciones en el ámbito psicológico. Es por ello que el objetivo de este trabajo fue indagar la relación que posee la tendencia punitiva con las motivaciones al castigo desde una perspectiva psicológica. Para ello, el presente trabajo consta de una revisión literaria, para la cual se utilizó información de diferentes repertorios, buscando una mirada global del punitivismo; y luego una puntualización en el contexto argentino. En conclusión, se ha encontrado extensa literatura sobre el punitivismo especializado sobre sus orígenes, metodologías y la relación de factores sociodemográficos en la tendencia punitiva. Sin embargo, con respecto a la relación existente entre el punitivismo y variables psicológicas; experiencias de victimización, los medios de comunicación y la necesidad de cierre cognitivo, las investigaciones al respecto tienden a ser escasas. Futuras investigaciones podrían relacionar el fenómeno del punitivismo relacionado con los aspectos psicológicos, como emocional y cognitivo, generando un conocimiento novedoso al territorio argentino.; El punitivisme en els seus començaments va ser abordat des d'una perspectiva polític penal. En la mateixa s'observa aquesta demanda punitiva per part dels ciutadans davant la tendència de polítiques més severes. En els últims anys, el punitivisme s'ha enfocat en altres àrees d'interès com els mitjans de comunicació, la sociologia i la psicologia. Malgrat tenir una extensa literatura acadèmica, aquest constructe presenta escasses recerques en l'àmbit psicològic. És per això que l'objectiu d'aquest treball va ser indagar la relació que posseeix la tendència punitiva amb les motivacions al càstig des d'una perspectiva psicològica. Per a això, el present treball consta d'una revisió literària, per a la qual es va utilitzar informació de diferents repertoris, buscant una mirada global del punitivisme; i després una puntualització en el context argentí. En conclusió, s'ha trobat extensa literatura sobre el punitivisme especialitzat sobre els seus orígens, metodologies i la relació de factors sociodemogràfics en la tendència punitiva. No obstant això, respecte a la relació existent entre el punitivisme i variables psicològiques; experiències de victimització, els mitjans de comunicació i la necessitat de tancament cognitiu, les recerques sobre aquest tema tendeixen a ser escasses. Futures recerques podrien relacionar el fenomen del punitivisme amb els aspectes psicològics, com a emocional i cognitiu, generant un coneixement nou al territori argentí.; In its beginning, punitivism was approached from a political-criminal perspective. In this context, a punitive demand from citizens is observed in response to the trend of more severe policies. In recent years, punitivism has focused on other areas of interest such as the media, sociology, and psychology. Despite having extensive academic literature, this construct presents scarce research in the psychological field. Therefore, the objective of this work was to investigate the relationship between punitive tendencies and motivations for punishment from a psychological perspective. To this end, the present work consists of a literature review, for which information from different repertoires was used, seeking a global view of punitivism; and then a focus on the Argentine context. In conclusion, extensive literature has been found on punitivism specialized in its origins, methodologies, and the relationship of sociodemographic factors in punitive tendencies. However, regarding the relationship between punitivism and psychological variables; victimization experiences, the media, and the need for cognitive closure, research on this topic tends to be scarce. Future research could relate the phenomenon of punitivism to psychological aspects, such as emotional and cognitive, generating novel knowledge for the Argentine territory.

Novelties on field crickets (Orthoptera: Gryllidae) from Argentine Patagonia: First record of Gryllus (Gryllus) argentinus Saussure, 1874 and a new species of Miogryllus Saussure, 1877 Castelli, Lucas Emanuel; Cadena Castañeda, Oscar J.; Mariottini, Yanina; Cheli, German Horacio Orthoptera are insects that have been widely studied in Argentina and worldwide. However, some groups such as the suborder Ensifera, have received less attention, and their knowledge is scarce. This work reports the presence of the genus Miogryllus (Saussure) in the Chubut Province for the first time (this being the southernmost distribution of the genus), describes a new species for science, and expands the distribution of Gryllus (Gryllus) argentinus (Saussure) to this province. Although about a third of the material studied came from the biogeographic province of Patagonia, it is interesting that both Miogryllus patagonicus sp. nov. like G. (G.) argentinus were exclusively found in sites belonging to the Monte desert, to the east of Chubut Province. Furthermore, all sites where M. patagonicus sp. nov. was collected were characterized by the absence of sheep activity for at least 10 years or by the implementation of environmental remediation strategies. This work represents a valuable contribution to understanding the distribution pattern of the Gryllidae family in Argentine Patagonia and has the potential to enhance current conservation strategies for these fragile ecosystems, as these insects could be good indicators of environmental changes.

El viaje del argentino César Vásquez a los Estados Unidos del Brasil (1941): Entre internacionalizar y hacer una Educación Física nacional; The Journey of the Argentinian César Vásquez to the United States of Brazil (1941): Balancing Internationalism and National Physical Education Galak, Eduardo; Pereyra, Martín Alejandro; Kopelovich, Pablo La Dirección General de Educación Física fue una dependencia del Ministerio de Justicia e Instrucción Pública de la Nación que funcionó entre 1938 y 1947, una institución que pretendió marcar un antes y después en la disciplina en Argentina. Tuvo como único director a César Vásquez, una figura relevante de la historia de la Educación Física argentina. Se propone analizar el viaje que Vásquez realizó a Brasil en el año 1941, enmarcado en un panamericanismo que convivía con discursos nacionalistas. Se trató de un viaje que inauguró una serie de intercambios entre autoridades de la Educación Física de ambos países, lo cual permite ver la imagen que se propusieron proyectar a la Nación vecina. Se utilizan como fuentes los artículos periodísticos que siguieron minuciosamente el viaje y los boletines del mencionado Ministerio que enmarcan esos intercambios. Se concluye que la institucionalización de la Educación Física argentina mostró una fuerte vinculación con organismos nacionales e internacionales y que el viaje significó una apertura transnacional para conformar la disciplina en contraste con lo realizado en otros países, en el marco de un panamericanismo que permite cuestionar la exclusiva dominación europea. Además, se observa que lo que se “mostró” a Brasil, pese a que se presentó como lo acontecido en toda Argentina, daba cuenta de forma exclusiva de lo realizado en Capital Federal y sus alrededores, lo que exhibe que el discurso federalizador de la Dirección General estaba centrado en las grandes ciudades.; The General Directorate of Physical Education (“Dirección General de Educación Física”), a branch of the Ministry of Justice and Public Instruction of Argentina, operated from 1938 to 1947, marking a significant era in the discipline within the country. Its sole director, César Vásquez, stands as a prominent figure in the history of Argentine Physical Education. This article aims to analyze Vásquez's 1941 trip to Brazil, which was positioned within a Pan- American context that coexisted with nationalist narratives. This journey initiated a series of exchanges between the Physical Education authorities of both countries, revealing the image they intended to project to their neighbor. The sources utilized include detailed newspaper articles covering the trip and bulletins from the aforementioned Ministry, which contextualize these exchanges. The analysis concludes that the institutionalization of Argentine Physical Education exhibited a strong connection with both national and international organizations. Vásquez's trip marked a transnational opening, shaping the discipline in contrast to practices in other countries and challenging the exclusive European dominance within the framework of Pan-Americanism. Additionally, it is noted that the aspects showcased to Brazil, although presented as representative of all Argentina, predominantly highlighted developments in the Federal Capital and its surroundings. This underscores that the federalizing discourse of the General Directorate was primarily centered on the major cities.

Análisis de la movilidad eléctrica en el contexto del transporte sostenible en Argentina; Analysis of electric mobility in the context of sustainable transport in Argentina Chemes, Jorge; Molinari, Luis; Mansur, Sergio Luis La transición energética en América Latina está instalada en diversos ámbitos, y atender la movilidad resulta crucial ya que en la región es el sector que más energía demanda. Este trabajo tiene como objetivo analizar el rumbo de la planificación de la transición energética en el sector transporte en Argentina, teniendo en cuenta el Plan Nacional de Transporte Sostenible, los datos del mercado y fundamentalmente los lineamientos de acciones que determinarán el futuro del transporte de personas en nuestro territorio. Todo lo anterior enmarcado en la velocidad de respuesta que debe darse para encausar la baja de las emisiones de manera tal de cumplir con los objetivos comprometidos, pero también para brindar las herramientas necesarias a los actores de la economía de Argentina en términos de acceso a mercados internacionales exigentes con la reducción de emisiones en origen. Los resultados acusan que en un plazo de 10 a 15 años no estarían dadas las condiciones técnicas y económicas para sincronizar las agendas de la movilidad eléctrica y la descarbonización en Argentina con un desarrollo local.; Energy transition in Latin America is being discussed in several sectors. Addressing mobility is critical, being the largest energy consumer in the region. This paper examines the trajectory of energy transition planning in Argentina`s transportation sector, taking into account the National Plan for Sustainable Transportation, market data, and strategic guidelines that Will shape the future of passenger transportation in the country. This analysis considers the urgency of reducing emissions to meet established targets and to equip Argentina`s economic actors with the tools to access international markets that require emissions reductions. The findings suggest that over the next 10 to 15 years, Argentina may face challenges aligning its electric mobility and decarbonization efforts with local development due to insufficient technical and economic conditions.

Thermodynamics of irreversible processes approach applied to explain the functional responsiveness of lipid membranes Cejas, Jimena del Pilar; Rosa, Antonio Sebastián; González Paz, Agustín Nicolás; Frías, María de los Ángeles; Disalvo, Edgardo Anibal The lipid membrane interphase is treated as a binary solution composed of polar head groups, with their hydration shells sunk in water, different from the bulk. This type of water is exchangeable with adjacent media according to the lateral surface pressure and water activity. Thus, the water influxes and effluxes at constant temperature and in the absence of an electric field, driven by the changes in surface pressure (surface tension) and the osmotic gradient (water activity), are coupled through phenomenological coefficients reflecting water-lipid and lipid-water frictions that relate to the diffusion of water in lipids and diffusion of lipids in water as described by the thermodynamics of irreversible processes (TIP) approach. Thus, the experimental surface pressure/area per molecule isotherms for monolayers can be fitted satisfactorily in contrast to the classical gas model. Hydrogen bond arrangements between water and membrane components determine a unique surface tension of water (surface free energy profile). Each surface pressure/water activity pair defines a particular steady state of the interphase, which explains its responsive behavior when chased by physical and chemical perturbations.

Drones en arqueología: relevamiento fotogramétrico del Pucará de Tacuil en el valle Calchaquí medio, Salta, Argentina; Drones in archeology: phogrammetric survey of the Pucará de Tacuil in the medio Calchaquí valley, Salta, Argentina Lanzelotti, Sonia Laura; Peña Reinoso, Rafael; Williams, Veronica Isabel En este trabajo se presentan los resultados del relevamiento fotogramétrico completo efectuado sobre un sitio del Periodo de Desarrollos Regionales (ca. 1000- 1430 d. C), el Pucará de Tacuil, en la provincia de Salta, Argentina. La restitución fotogramétrica se realizó a partir de fotografías aéreas capturadas con dos drones, que cubrieron los tres sectores que conforman este sitio arqueológico. Los productos cartográficos obtenidos fueron un Modelo Digital de Elevación (MDE) y una ortofoto de alta resolución del área a partir de los cuales se detectaron, caracterizaron, registraron y midieron las estructuras arqueológicas del sitio. Se expone la problemática arqueológica que rodea al lugar con sus características de poblado pucará y se realiza un análisis sobre la organización socioespacial inferida a partir de las evidencias arqueológicas detectadas.; The the results of a complete photogrammetric survey carried out on a site from the Regional Development Period (ca. 1000-1430 AD), the Pucará de Tacuil, in the province of Salta, Argentina, are shown. The photogrammetric restitution was carried out from aerial photographs captured with two drones, which covered the three sectors that make up this archaeological site. The cartographic products obtained were a Digital Elevation Model and a high-resolution ortophoto of the area from which the archaeological structures of the site were detected, characterized, recorded and measured. The archaeological problems surrounding the site with its characteristics of a pucará settlement are presented and an analysis is made of the socio-spatial organization inferred from the archaeological evidence detected.

Archivos digitales y sujetos coloniales: una relación tensionada; Digital archives and colonial subjects: a tense relationship Añon, Valeria En este trabajo me propongo recorrer los vínculos entre subjetividades coloniales y archivos digitales con el objetivo de comprender las posibilidades y los desafíos que estos modos del archivo presentan para la investigación literaria e histórica. Para ello, organizo el texto en tres zonas: un primer momento que me permita dilucidar qué se entiende por “sujetos coloniales” y cuáles son sus problemas, pensados desde la perspectiva de los estudios literarios; un segundo momento en el que me interrogo acerca de “lo popular” en esta configuración de subjetividades; un tercer momento en el que propongo un recorrido en torno a algunos archivos digitales y proyectos de Humanidades digitales vinculados con un corpus colonial. Por último, esbozo un cierre en el que presento las posibilidades y los desafíos de los archivos digitales para la inscripción y resguardo de voces populares-coloniales.; In this paper I explore the links between colonial subjectivities and digital archives with the aim of understanding the possibilities and challenges that these modes of archiving present for literary and historical research. To this end, I organise the text in three areas: a first moment that allows me to elucidate what is understood by ‘colonial subjects’ and what are their problems, thought from the perspective of literary studies; a second moment in which I question myself about ‘the popular’ in this configuration of subjectivities; a third moment in which I propose a journey around some digital archives and digital humanities projects linked to a colonial corpus. Finally, I outline a closing section in which I present the possibilities and challenges of digital archives for the inscription and safeguarding of popularcolonial voices.

Delineating genomic features for wild guanaco conservation Leggieri, Leonardo Ramón; Anello, Melina; Peralta, Diego Matias; Tunez, Juan Ignacio; Di Rocco, Florencia; Poljak, Sebastián; Flores, Celina Eliana; Alunni, Daniela Verónica; Belardi, Juan Bautista; Gutierrez, Maria Amelia; Alvarez, María Clara; Massigoge, Agustina; Kaufmann, Cristian Ariel; Borrero, Luis Alberto; Borghi, Carlos Eduardo; Demartini, Julieta Paola; Petracci, Pablo; Martín, Sotelo; Marbán, Leandro Martín; Kathiravan, Periasamy; Rudolf, Pichler; Valdez Marín, Juan Carlos; Cárcamo, Juan Guillermo; Carmanchahi, Pablo Daniel The South American fauna has endured challenges such as illegal hunting, cattle expansion, climate change, and landscape fragmentation. Despite ongoing conservation efforts that aim to address these issues, genetic diversity remains overlooked. We genotyped 126 Lama guanicoe individuals from an area of 2 million km2 in Patagonia and Cuyo using the 60K SNPs Axiom-Camelids, and we assessed population viability through genetic diversity, inbreeding, and population size. We then explored population connectivities through network analyses, genetic differentiation, and Bayesian approaches. Our findings reveal six genetic clusters: Cuyo, Somuncura, North Patagonia, Central Patagonia, South Patagonia, and Tierra del Fuego Island (TDFI). Cuyo and TDFI guanacos differed from others due to isolation-by-distance and geographical barriers, respectively. Cuyo exhibited the highest degree of allele conservation, but TDFI faced heightened vulnerability due to isolation and increased homozygosity. Sharp bottlenecks in Cuyo and North Patagonia coincided with the expansion of sheep farming, while bottlenecks in the other populations occurred during the Little Ice Age. North Patagonia acted as a probable contact zone, facilitating mixing of the Cuyo, Somuncura, and Central Patagonia populations. The Central and South Patagonian populations presented the highest gene flow. Thus, genomic advances help to define distinct conservation units (genetic stocks) to guide management practices and decisions.

Assembling the Brazilian flora: overview of Leguminosae diversity Morim, Marli Pires; Filardi, Fabiana Luiza Ranzato; Sartori, Ângela Lúcia Bagnatori; Simon, Marcelo Fragomeni Simon; Iganci, João Ricardo Vieira; Lewis, Gwilym P.; de Lima, Haroldo Cavalcante; Lughadha, Eimear Nic; Fernandes, Moabe Ferreira; de Queiroz, Luciano Paganucci; Cardoso, Domingos; Morales, Matias Over the last two centuries, since the treatment of Leguminosae in Flora Brasiliensis, many new legume species and genera have been described, adding to the accumulated body of knowledge on species’ circumscriptions and distribution, published in monographs, taxonomic revisions and regional floristic treatments of specific Brazilian phytogeographic domains. The Flora do Brasil 2020 project was a collaborative effort conducted between 2008 and 2020 to meet the targets set by the Global Strategy for Plant Conservation, an initiative of the Convention on Biological Diversity. The project aimed to inventory and revise the taxonomy of all plant species in Brazil, including Leguminosae. The monograph of the legume family was carried out by a team of 102 taxonomists (10% of the project’s total), who worked towards updating and verifying the taxonomy of these plants in an online platform. Information on the life forms, substrate, endemism level, and geographical distribution for all accepted taxa were provided, alongside morphological descriptions, identification keys, images of herbarium specimens and field photographs. In this work, we have extracted from the Flora do Brasil 2020 project the legume data consolidated on December 31st, 2020 to provide an overview of the species diversity of Leguminosae in Brazil and its distribution across phytogeographic domains. The results revealed that the family is represented by 220 genera, of which 19 are endemic, and a total of 2901 species (1576 endemic). After fully monographing 210 genera (95%), we showcased Leguminosae as the most diverse family in the country, representing 6% of the total vascular plant species documented in the Flora do Brasil 2020. The species are found in all phytogeographic domains, exhibiting a wide range of life forms. The Mata Atlântica and Caatinga domains together contain the largest number of endemic legume genera in Brazil, most of them monospecific.A discussion on the conservation status of the Brazilian legume species is also provided. Knowledge of the Brazilian flora is continuously advancing, particularly with regards to Leguminosae, demanding regular taxonomic and nomenclatural updates.Current collaborations have greatly improved our understanding of legume diversity and distribution, providing evidence to inform conservation prioritization and action for the Leguminosae in Brazil’s megadiverse flora.

Cuidados alimentarios de niños, niñas y adolescentes de familias usuarias de un comedor popular del asentamiento urbano La Carbonilla Comelatto, Agustina; Gonzalez, Yamila Anahi; Grabowiecki, Paula Valeria; Marsilla, Malena; Mancinelli, Gloria En los últimos años, el concepto de cuidado infantil ha ido variando y surge como relevante en un contexto donde el cuidado empieza a pensarse como una actividad que requiere ser problematizada, dando lugar a un enriquecedor campo de discusión. El presente trabajo de investigación busca analizar y comprender la articulación entre los diferentes actores, instituciones y el cuidado alimentario de niños, niñas y adolescentes (NNyA) de familias que asisten al comedor popular “Polo Obrero La Carbonilla” situado en dicho barrio, considerando la influencia de factores socioculturales y económicos en la formación de sus hábitos alimentarios. Para llevar adelante el estudio elegimos un enfoque cualitativo, y para la recolección de datos utilizamos fuentes primarias como la observación participante, entrevistas en profundidad y encuestas, y también fuentes secundarias como páginas web e informes de centros de investigación, que permitieron complementar los datos recogidos en terreno. La investigación nos permitió desentrañar el concepto de cuidado de NNyA, un proceso sociocultural, el cual consideramos como una vía de acceso para explorar conceptos de construcción de la niñez en diferentes situaciones y contextos. Además, observamos que el rol de los comedores populares es fundamental no sólo para asegurar el derecho de NNyA a no padecer hambre, sino también como un espacio donde se resalta la relevancia del cuidado como una acción social, colectiva e interdisciplinaria.; In recent years, the concept of childcare has been changing and emerges as relevant in a context where care is beginning to be thought of as an activity that requires to be problematized, giving rise to an enriching field of discussion. The present research work seeks to analyze and understand the articulation between the different actors, institutions and the nutritional care of children and adolescents (C&A) from families that attend the “Polo Obrero La Carbonilla” soup kitchens located in said neighborhood, considering the influence of sociocultural and economic factors in the formation of their eating habits. To carry out the study, we chose a qualitative approach and for data collection we used both primary sources such as participant observation, in-depth interviews and surveys, as well as secondary sources such as websites and reports from research centers, which allowed us to complement the data collected on the ground. The research allowed us to unravel the concept of child care, a sociocultural process, which we consider as an access route to explore concepts of childhood construction in different situations and contexts. Furthermore, we observed that the role of soup kitchens is fundamental not only to ensure the right of children and adolescents to not suffer from hunger, but also as a space where the relevance of care as a social, collective and interdisciplinary action is highlighted.

Advancing the design of heterogeneous catalyst: Copper-montmorillonite for regioselective alkyne hydroamination Alonso, María Belén; Radivoy, Gabriel Eduardo; Mancebo Aracil, Juan Transition metal catalysts supported on natural materials offer promising avenues for sustainable organic synthesis. In this study, we present the synthesis, characterisation, and catalytic performance of copper nanoparticles supported on montmorillonite K10 (CuMK10) as a heterogeneous catalyst for hydroamination reactions. CuMK10, synthesised through a robust and established nanoparticle synthesis methodology, demonstrates remarkable catalytic efficiency and selectivity in the synthesis of imines via hydroamination of terminal alkynes. The catalyst exhibits exceptional regioselectivity, predominantly yielding Markovnikov products, demonstrating its potential as a versatile tool in organic synthesis. Moreover, CuMK10 shows favourable reusability, offering economic benefits and practical utility due to its ease of recovery and reuse. Comprehensive structural and mechanistic studies provide insights into the catalyst's performance, paving the way for the development of efficient and environmentally benign catalytic systems.

Tunneling Current Calculation Using the Linear-Bound Potential Model Ferreyra, Jorge Mario; Bridoux, German; Villegas Andina, Atuel Elías; Tolosa, Martín Rodrigo; Villafuerte, Manuel Jose A model of the tunneling current through an ultrathin insulating barrier comingfrom carriers in an inversion layer using a simple linear potential model ispresented. This model provides analytical expressions for the wavefunctions ofthese carriers and simple equations to obtain numerically their correspondingeigenvalues. These expressions can be inserted in the tunneling current equationallowing a more simple understanding of the physics involved in this tunnelingproblem. As an example, one can fit the experimental results for the leakagecurrent obtained by different authors in planar metal oxide semiconductor fieldeffect transistors and also in a LaAlO3/SrTiO3 and a HfO2/Ge bilayer. Themodification of the tunneling current when the dielectric constant is increased,a subject of interest in device applications, is explored.

Geografía física en clave de desempeño académico: El caso de las carreras de turismo de la Universidad Nacional de Tierra del Fuego; Physical Geography in code of academic performance: The case of Tourism courses at the National University of Tierra del Fuego Schwartz, Soledad; Villarreal, María Laura; Alli, Pamela Daniela El rendimiento estudiantil o desempeño académico constituye una variable útil para pensar en la calidad de la educación superior. No obstante, existen diversas acepciones en torno a su medición. En este marco, el presente artículo tiene como objetivo conocer las características de dicho desempeño en términos del cursado de la asignatura Geografía Física del primer año de las carreras Tecnicatura y Licenciatura en Turismo de la Universidad Nacional de Tierra del Fuego, Antártida e Islas del Atlántico Sur. Para ello, y bajo un enfoque cuantitativo de alcance exploratorio, se consideró a los estudiantes inscriptos en la materia durante los años 2018 a 2023 y el concepto obtenido en base a la normativa de la universidad, así como la inscripción a mesa de examen final hasta agosto de 2024. A través de las actas de inscripción, de regularidad y de examen, se construyó una matriz de doble entrada incluyendo a un universo de 911 estudiantes. El análisis revela que el 17% pierde la cursada por no cumplimentar requisitos de admisión en tiempo y forma, que la tasa de abandono temprano ronda el 27%, que el 36% queda libre por diversos motivos y que la tasa de regularidad alcanza el 19%. Asimismo, se observa que solo el 12,37% de los estudiantes logró acreditar la asignatura mediante la aprobación del examen final, varios de ellos luego de haber cursado la asignatura en más de una oportunidad. Estos primeros resultados en relación a la problemática del desempeño académico abren interrogantes para profundizar en variables cualitativas que permitan comprender los motivos de deserción y las estrategias de éxito de los estudiantes para delinear así acciones institucionales que aumenten la permanencia y el posterior egreso.; Student academic performance is a useful variable to think about the quality of higher education. However, there are different ways to measure it. In this sense, the present article aims to explore the characteristics of such performance in the subject Physical Geography of the first year of the degree in Tourism at the national university of Tierra del Fuego, Antártida e Islas del Atlántico Sur. For this purpose, and under a quantitative approach, the students enrolled in the subject during the years 2018 to 2023 were considered and the concept obtained based on the university regulations, as well as the registration to the final exam until August 2024. Through these records, a double-entry matrix was designed including a universe of 911 students. The analysis reveals that 17% do not fulfill admission requirements in time, that the early dropout rate is around 27%, that 36% fail for various reasons, and that the regularity rate reaches 19%. Likewise, it is observed that only 12.37% of the students manage to pass the final exam, many of them after having taken the course on more than one occasion. These first results in relation to the problem of academic performance raise questions that invite us to deepen the analysis taking into account qualitative variables to understand the reasons for dropout and the success strategies of students in order to outline institutional actions that increase permanence and the subsequent graduation.

Poderes públicos, territorio, población. La democracia en la teoría del Estado Nosetto, Luciano Ezequiel “¿Podemos reflexionar sobre el Estado desde una teoría del Estado? ¿Desde una teoría que no tenga por centro a la democracia, sino que ponga lo democrático a jugar en el interior de un conjunto más vasto, de fenómenos sociológicos y jurídicos, que involucran el territorio, la población y los poderes?”, se pregunta Luciano Nosetto en este texto que se vale de autores como como Georg Jellinek, Max Weber y Carl Schmitt para acercar conceptos con los que comprender los dilemas y las posibilidades a las que abre la situación de nuestro tiempo. Situación dramática “que hizo posible que el procedimiento jurídico de formación de la voluntad gubernamental diera lugar al nihilismo activo, esto es, al encumbramiento de la voluntad de destrucción como voluntad rectora del Estado”.

Changes in least limiting water range under different tillage systems and traffic intensities in a subhumid pampean region Vallejos, Adrián Gustavo; Iglesias, Julio Osvaldo; Galantini, Juan Alberto; Imhoff, Silvia del Carmen Soil management practices can disrupt soil structure, affecting productivity through changes in water and oxygen availability, and mechanical impedance. These variables can be affected by machinery traffic depending on the management practice used. This research aimed to quantify changes in the least limiting water range (LLWR) in the surface soil layer under varying traffic intensities in both no-till (NT) and conventional tillage (CT) systems. The treatments applied to each system were: control without any traffic (0P), one tractor pass (1P), and five tractor passes (5P). To determine the LLWR and available water (AW), the following variables were measured: soil bulk density (BD), soil water retention curve (SWRC) and soil penetration resistance (SRP). Transit treatments gave different LLWR results depending on tillage system. The changes in AW were less sensitive than the LLWR values. The only treatment that did not reach the critical bulk density (BDc), where the LLWR is zero, was the 0P treatment. Both the NT and CT 1P treatments reached the same BDc of 1.39 m³ m- ³. However, in the 5P treatment, the BDc was 1.33 m³ m- ³ for CT and 1.41 m³ m- ³ for NT, respectively. The LLWR showed a different response of its structural condition to the tillage system and traffic intensity in both tillage systems. These results provide evidence of a greater risk of soil degradation under CT than under NT management. Regardless of soil management and machinery traffic treatments, soil penetration resistance was the attribute that had more influence on the LLWR.

A simple and fast method to calculate the coil currents and the external poloidal flux and magnetic field for fixed boundary equilibria Farengo, Ricardo; Garcia Martinez, Pablo Luis; Ferrari, Hugo Emilio A simple and fast method to calculate the coil currents and the external poloidal flux and magnetic field consistent with a given internal magnetohydrodynamic (MHD) equilibrium and coil geometry is presented. The constrained optimization technique employed allows to fix the exact position of the X-points. The external poloidal flux and field are calculated using Green´s functions expressed in terms of elliptic integrals that are calculated using a fast and accurate routine. The calculation can be limited to the region between the plasma and the device wall. An example for a double null configuration is presented.

Una propuesta de teoría sociológica: Los poderes reclasificatorios; Uma proposta de teoria sociológica: Poderes reclassificatórios; A proposal for sociological theory: Reclassificatory powers Bialakowsky, Alejandro Marcos Este artículo presenta una propuesta de teoría sociológica a partir de los poderes reclasificatorios. Hoy se despliegan constantes disputas sobre los modos de dividir, calificar y jerarquizar el mundo social y natural. Son las maneras de reclasificar con sus alcances prácticos –colectivos y personales–, como desigualdades, discriminaciones, regulaciones, innovaciones, etc. Tales disputas van desde recategorizaciones de “género”, “clase” y “étnico-raciales” hasta “jurídicas”, “económicas”, “religiosas” o “técnicas” vía algoritmos. Así, resulta fundamental elaborar una perspectiva teórico-analítica en sociología que dé cuenta de esas controversias. Ésta requiere una mirada de conjunto, abstracta e incisiva, evitando fragmentaciones teóricas del Sur y del Norte. Para ello, se realizan unas primeras definiciones del concepto de “poderes reclasificatorios”. Luego se enfoca en sus divisiones y capacidades para abordar las relaciones entre poder y dominación, en particular, con algunos ejemplos de la sociología argentina. Por último, se mencionan ciertos elementos de continuidad de la propuesta.; Este artigo oferece uma proposta de teoria sociológica baseada nos poderes reclassificatórios. Hoje há contínuas disputas sobre as formas de dividir, classificar e hierarquizar o mundo social e natural. São os modos de reclassificação com as suas implicações práticas ‒coletivas e pessoais‒ como as desigualdades, as discriminações, as regulamentações, as inovações, etc. Essas disputas vão do recategorizações de “género”, da “classe” e da “raça-etnia” às “jurídicas”, “económicas”, “religiosas” ou “técnicas” através de algoritmos. Assim, é fundamental produzir uma perspectiva teórico-analítica na sociologia que dê conta destas controvérsias. Isto requer uma perspective geral, abstrata e incisiva, evitando fragmentações teóricas do Sul e do Norte. Para isso, é apresentada uma primeira definição do conceito de “poderes reclassificatórios”. Depois, concentra-se em suas divisões e capacidades para abordar as relações entre poder e dominação, em particular com alguns exemplos da sociologia argentina. Finalmente, são mencionados alguns elementos de continuidade da proposta.; This article presents a proposal for a sociological theory based on reclassificatory powers. Today continuous disputes are unfolding over ways of dividing, qualifying, and hierarchizing the social and natural world. These are the forms of reclassifying with their practical implications—collective and personal—such as inequalities, discriminations, regulations, innovations, etc. Those disputes range from "gender," "class," and "racial-ethnic" recategorizations to "legal," "economic," "religious," or "technical" ones, via algorithms. Thus, it is key to elaborate a theoretical-analytical perspective in sociology that accounts for these controversies. This requires an overall, abstract, and incisive perspective, avoiding theoretical fragmentations of the South and the North. So, a first definition of the concept of "reclassificatory powers" is given. Then, the article focuses on its divisions and capacities to address the relations between power and domination, particularly with some examples from Argentinean sociology. Finally, certain elements of continuity of the proposal are mentioned.

Scatter Search Algorithm for a Waste Collection Problem in an Argentine Case Study Rossit, Diego Gabriel; González, Begoña; Frutos, Mariano; Méndez Babey, Máximo Increasing urbanization and rising consumption rates are putting pressure on urban systemsto efficiently manage Municipal Solid Waste (MSW). Waste collection, in particular, is one of the mostchallenging aspects of MSW management. Therefore, developing computer-aided tools to supportdecision-makers is crucial. In this paper, a Scatter Search algorithm is proposed to address the wastecollection problem. The literature is relatively scarce in applying this algorithm, which has proven tobe efficient in other routing problems, to real waste management problems. Results from real-worldinstances of an Argentine city demonstrate that the algorithm is competitive, obtaining, in the caseof small instances, the same outcomes as those of an exact solver enhanced by valid inequalities,although requiring more computational time (as expected), and significantly improving the results ofthe latter for the case of larger instances, now requiring much less computational time. Thus, ScatterSearch proves to be a competitive algorithm for addressing waste collection problems.