Climate, landscape, and human influences on fire in southern Patagonia: A basin-scale approach Bianchi, Lucas Osvaldo; Villalba, Ricardo; Oddi, Facundo José; Mundo, Ignacio Alberto; Radins, Marcos Raul; Amoroso, Mariano Martin; Srur, Ana Marina; Bonada, Anabela Carmen Human activities and how they interact with climate and landscape to influence fire regimes is complex and still remains a major research challenge in most Patagonian forests. Recent studies on the fire history in Patagonia covered large areas, making it difficult to model fire occurrence and burned patch size. The main objective of this work was to evaluate the influence of climatic variability, landscape variations and human activities on the occurrence and size of fire at the basin scale. We aimed to update previous fire history of the Río de las Vueltas – Río Túnel basin, in southern Patagonian Andes, with the specific aims to (1) reconstruct in detail the spatio-temporal patterns of fire, (2) model fire variability as a function of climate variability, landscape and human activities, and (3) determine the influence of regional climate on fire occurrence at the basin scale. We used dendrochronological techniques to update the fire history of the study basin. At the basin scale, we used (1) maximum entropy models to estimate the influence of climate, landscape, and humans on fire probability, (2) general linear models to assess how these factors modulate fire size, and (3) superposed epoch analysis to assess the influence of regional water deficit on fire occurrence. We found that fire occurrence increased sharply with the arrival of settlers in the early 20th century and decreased in the early 21st century due to the shift in recognition of the ecosystem services provided by forests. Additionally, the mean fire interval, the number of fires during drier years, and fire size, increased along the northwest-southeast gradient of decreasing precipitation. Our results support that fire regimes are largely human driven, and conditioned by climate and landscape characteristics. The analysis at the basin scale facilitated the understanding of how these factors regulate fire regimes, and consequently, our comprehension at larger spatial scales.

El universo olfativo de los ámbitos urbanos en la Baja Edad Media y la Temprana modernidad; The olfactory universe of urban areas in the late middle ages and early modernity Coronado Schwindt, Gisela Beatriz El objetivo de este trabajo será reflexionar sobre cómo el sentido del olfato, junto con otra información sensorial, fue importante en las experiencias cotidianas de la vida urbana de los habitantes del reinode Castilla (siglos XV y XVI) y sus percepciones de diferentes lugares, calles y vecindarios, a través del análisis de la documentación concejil.; The objective of this paper will be to reflect on how the sense of smell, together with other sensory information, was important in the daily experiences of urban life of the inhabitants of the kingdom of Castile (15th and 16th centuries) and their perceptions of different places, streets and neighborhoods, through the analysis of council documentation.

GWAs Identify DNA Variants Influencing Eyebrow Thickness Variation in Europeans and Across Continental Populations Peng, Fuduan; Xiong, Ziyi; Zhu, Gu; Hysi, Pirro G.; Eller, Ryan J.; Wu, Sijie; Adhikari, Kaustubh; Chen, Yan; Li, Yi; Gonzalez-Jose, Rolando; Schüler-Faccini, Lavinia; Bortolini, María Cátira; Acuña Alonzo, Victor; Canizales Quinteros, Samuel; Gallo, Carla; Poletti, Giovanni; Bedoya, Gabriel; Rothhammer, Francisco; Uitterlinden, André G.; Ikram, M. Arfan; Nijsten, Tamar; Ruiz Linares, Andrés; Wang, Sijia; Walsh, Susan; Spector, Timothy D.; Martin, Nicholas G.; Kayser, Manfred; Liu, Fan Natural variation in eyebrow thickness (ET) is one of the most conspicuous facial32 features. Understanding its genetic basis is of broad interest and has implications for33 dermatology and other fields. Two genome-wide association studies (GWASs) for ET34 have been reported thus far. In 2,457 Latin Americans from the CANDELA cohort,35 Adhikari et al. identified 3q22.3 harboring FOXL2 (Adhikari et al., 2016). In 2,96136 Han Chinese from the TZL cohort, Wu et al. discovered 3q26.33 harboring SOX2 and37 5q13.2 harboring FOXD1 and by meta-analysis of CANDELA and TZL 2q12.338 harboring EDAR (Wu et al., 2018). Thus, four ET-associated loci have been39 established thus far, all in non-Europeans. As no European ET GWAS had been40 reported, it remains unknown whether the genetic ET effects described in non-41 Europeans persist in Europeans, or whether there are European-specific genetic loci42 involved in ET, or both.43 Here, we report the first GWAS of ET in Europeans using 9,948 individuals from44 four cohorts of European ancestry, including the Rotterdam Study (RS, n=4,441),45 TwinsUK (n=1,159, females only), the Queensland Institute of Medical Research46 study (QIMR, n=2,257), and a cohort from the United States (US, n=2,121, Table S1,47 Figure S1, Supplementary Materials).

Combined genome-wide association study of 136 quantitative ear morphology traits in multiple populations reveal 8 novel loci Li, Yi; Xiong, Ziyi; Zhang, Manfei; Hysi, Pirro G.; Qian, Yu; Adhikari, Kaustubh; Weng, Jun; Wu, Sijie; Du, Siyuan; Gonzalez-Jose, Rolando; Schuler-Faccini, Lavinia; Bortolini, Maria Catira; Acuna Alonzo, Victor; Canizales Quinteros, Samuel; Gallo, Carla; Poletti, Giovanni; Bedoya, Gabriel; Rothhammer, Francisco; Wang, Jiucun; Tan, Jingze; Yuan, Ziyu; Jin, Li; Uitterlinden, André G.; Ghanbari, Mohsen; Ikram, M. Arfan; Nijsten, Tamar; Zhu, Xiangyu; Lei, Zhen; Jia, Peilin; Ruiz-Linares, Andres; Spector, Timothy D.; Wang, Sijia; Kayser, Manfred; Liu, Fan Human ear morphology, a complex anatomical structure represented by a multidimensional set of correlated and heritable phenotypes, has a poorly understood genetic architecture. In this study, we quantitatively assessed 136 ear morphology traits using deep learning analysis of digital face images in 14,921 individuals from five different cohorts in Europe, Asia, and Latin America. Through GWAS meta-analysis and C-GWASs, a recently introduced method to effectively combine GWASs of many traits, we identified 16 genetic loci involved in various ear phenotypes, eight of which have not been previously associated with human ear features. Our findings suggest that ear morphology shares genetic determinants with other surface ectoderm-derived traits such as facial variation, mono eyebrow, and male pattern baldness. Our results enhance the genetic understanding of human ear morphology and shed light on the shared genetic contributors of different surface ectoderm-derived phenotypes. Additionally, gene editing experiments in mice have demonstrated that knocking out the newly ear-associated gene (Intu) and a previously ear-associated gene (Tbx15) causes deviating mouse ear morphology.

Natural short-lived halogens exert an indirect cooling effect on climate Saiz López, Alfonso; Fernandez, Rafael Pedro; Li, Qinyi; Cuevas Rodríguez, Carlos Alberto; Xiao Fu; Kinnison, Douglas E.; Tilmes, Simone; Mahajan, Anoop S.; Gomez Martin, Juan Carlos; Iglesias Suarez, Fernando; Hossaini, Ryan; Plane, John M. C.; Gunnar Myhre; Lamarque, Jean Francoise Observational evidence shows the ubiquitous presence of ocean-emitted short-lived halogens in the global atmosphere. Natural emissions of these chemical compounds have been anthropogenically amplified since pre-industrial times, while, in addition, anthropogenic short-lived halocarbons are currently being emitted to the atmosphere. Despite their widespread distribution in the atmosphere, the combined impact of these species on Earth’s radiative balance remains unknown.Here we show that short-lived halogens exert a substantial indirect cooling effect at present (−0.13 ± 0.03 watts per square metre) that arises from halogen-mediated radiative perturbations of ozone (−0.24 ± 0.02 watts per square metre), compensated by those from methane (+0.09 ± 0.01 watts per square metre), aerosols (+0.03 ± 0.01 watts per square metre) and stratospheric water vapour (+0.011 ± 0.001 watts per square metre). Importantly, this substantial cooling effect has increased since 1750 by −0.05 ± 0.03 watts per square metre (61 per cent), driven by the anthropogenic amplification of natural halogen emissions, and is projected to change further (18–31 per cent by 2100) depending on climate warming projections and socioeconomic development. We conclude that the indirect radiative effect due to short-lived halogens should now be incorporated into climate models to provide a more realistic natural baseline of Earth’s climate system.

Acciones colectivas sindicales docentes de Córdoba, la Rioja y Santa Cruz en notas de prensa (1993-2010) 6000 notas de diario de Córdoba, la Rioja y Santa Cruz que registran acciones sindicales. Las mismas están procesadas en spps.

Proteomic analysis of the effect of hemin in breast cancer Colo, Georgina Pamela; Schweitzer, Karen; Oresti, Gerardo Martin; Alonso, Exequiel Gonzalo; Fernández Chávez, Lucía; Mascaró, Marilina; Giorgi, Gisela; Curino, Alejandro Carlos; Facchinetti, Maria Marta Heme, an iron-containing prosthetic group found in many proteins, carries out diverse biological functions such as electron transfer, oxygen storage and enzymatic reactions. Hemin, the oxidised form of heme, is used to treat porphyria and also to activate heme-oxygenase (HO) which catalyses the rate-limiting step in heme degradation. Our group has previously demonstrated that hemin displays antitumor activity in breast cancer (BC). The aim of this work has been to study the effect of hemin on protein expression modifications in a BC cell line to gain insight into the molecular mechanisms of hemin antitumor activity. For this purpose, we carried out proteome analysis by Mass Spectrometry (MS) which showed that 1309 proteins were significantly increased in hemin-treated cells, including HO-1 and the proteases that regulate HO-1 function, and 921 proteins were significantly decreased. Furthermore, the MS-data analysis showed that hemin regulates the expression of heme- and iron-related proteins, adhesion and cytoskeletal proteins, cancer signal transduction proteins and enzymes involved in lipid metabolism. By biochemical and cellular studies, we further corroborated the most relevant in-silico results. Altogether, these results show the multiple physiological effects that hemin treatment displays in BC and demonstrate its potential as anticancer agent.

Control epidémico en redes con cliqués Es el código del programa utilizado para el paper Epidemic control in networks with cliques LD Valdez, L Vassallo, LA Braunstein Physical Review E 107 (5), 054304 (2023)

Caracterización de compuestos secundarios de plantas solanáceas Se procedió a la recolección de volátiles provenientes de distintas especies de solanáceas nativas en las cuales fue hallada la interacción Tuta absoluta-Pseudapanteles dignus en el campo.

Base de datos de referencia de la población Argentina de microatélites autosómicos Background Argentinean population is the result of admixture between South Amerindians, Europeans and to a lesser degree, Africans. Since the advent of forensic molecular genetics, the construction of local reference databases became mandatory. Aiming to further extend the technical quality reference database of Argentina, we present herein the allele frequencies for 24 autosomal STRs, including D22S1045, and SE33 (not previously reported for Argentina in STRidER). Conclusions Genotypes of 6454 unrelated individuals (3761 males and 2694 females) from 13 out of 23 provinces were analysed. Forensic parameters were calculated for each marker. The observed heterozygosity ranged from 0.661 (TPOX) to 0.941 (SE33). The locus SE33 was revealed to be the most informative marker showing the highest values for PIC (0.955), GD (0.952), TPI (8.455) and PE (0.879). On the other hand, TPOX turned out to be the least informative marker: PIC (0.618), GD (0.669), and PE (0.371). The high number of analyzed individuals allowed detecting low frequency alleles and microvariants in CSF1PO; D16S539 and D21S11 D18S51; PENTA D; PENTA E and at locus D6S1043. Methods and Results This study is the most extensive for Argentina and complements the already reported information concerning the autosomal STRs commonly used in forensic identification. The results were submitted passing STRidER quality control standards (QC), receiving the reference number STR000327 v.2.

Base de datos de polimorfismo In/Del de Cromosoma X en población Argentina Aiming to determine their ancestry diagnostic potential, we selected two sets of nuclear deletion/insertion polymorphisms (DIPs), including 30 located on autosomal chromosomes and 33 on the X chromosome. We analysed over 200 unrelated Argentinean individuals living in urban areas of Argentina. As in most American countries, the extant Argentinean population is the result of tricontinental genetic admixture. The peopling process within the continent was characterised by mating bias involving Native American and enslaved African females and European males. Differential results were detected between autosomal DIPs and X-DIPs. The former showed that the European component was the largest (77.8%), followed by the Native American (17.9%) and African (4.2%) components, in good agreement with the previously published results. In contrast, X-DIPs showed that the European genetic contribution was also predominant but much smaller (52.9%) and considerably larger Native American and African contributions (39.6% and 7.5%, respectively). Genetic analysis revealed continental genetic contributions whose associated phenotypic traits have been mostly lost. The observed differences between the estimated continental genetic contribution proportions based on autosomal DIPs and X-DIPs reflect the effects of autosome and X-chromosome transmission behaviour and their different recombination patterns. This work shows the ability of the tested DIP panels to infer ancestry and confirm mating bias. To the best of our knowledge, this is the first study focusing on ancestry-informative autosomal DIP and X-DIP comparisons performed in a sample representing the entire Argentinean population.

Enhancing the large-scale electric power systems to meet future demands considering the sustainable technologies Los sistemas eléctricos se están expandiendo hacia formas de producción más eficientes. Se están desarrollando varias estrategias de expansión para cubrir los aumentos de la futura demanda de electricidad. Se plantean objetivos como reducir las emisiones de gases de efecto invernadero, aumentar la eficiencia de las operaciones y lograr una participación más equitativa de los actores a cargo de las inversiones. Siguiendo esta premisa, este trabajo presenta un modelo multi-objetivo que ayuda en la toma de decisiones sobre el problema de la expansión de la generación eléctrica. El modelo considera puntos de vista más realistas que otros trabajos de la literatura. La gran mayoría de las partes interesadas en el ámbito estudiado están satisfechas con la presente propuesta. Se tienen en cuenta los costes de inversión, las emisiones de efecto invernadero y las tasas de contribución a la inversión. Además, se estudian rigurosamente los procedimientos reales de las etapas de generación y transmisión. De este modo se obtienen soluciones más cercanas a la realidad. El caso de estudio es el sistema eléctrico de Argentina. Los resultados obtenidos indican que las soluciones recomendadas son las más convenientes desde todos los puntos de vista. Constituyen un mix de la generación con tecnologías renovables y no renovables. El estudio de caso revela reducciones de emisiones de hasta el 25% y se puede lograr que los grupos sociales más vulnerables no tengan que financiar futuras ampliaciones del sistema.

Datos experimentales trabajo publicado: Adsorption of cationic surfactant as a probe of the montmorillonite surface reactivity in the alginate hydrogel composites Archivos de analisis de datos experimentales obtenidos por espectroscopias varias y difraccion de rayos X que dieron lugar a las figuras del paper publicado en RSC Advances (RSC Adv., 2022, 12, 35469, DOI: 10.1039/d2ra07405b)

A reassessment of Nemolestes (Mammalia, Metatheria): Systematics and evolutionary implications for Sparassodonta Rangel, Caio Cesar; Carneiro, Leandro M.; Tejedor, Marcelo Fabian; Paglarelli Bergqvist, Lilian; Oliveira, Edison Vicente Nemolestes and Procladosictis are Eocene sparassodonts of controversial affinities. Nevertheless, despite the poor preservation of their holotypes, several other specimens have been tentatively assigned to these genera, as exemplified by some isolated teeth from the Itaboraí and Laguna Fría faunas. Here, we revise specimens referred to Nemolestes and Procladosictis from Itaboraí, Laguna Fría and Ameghino’s collection. Nemolestes differs from Patene in its more reduced metaconid, and “carnassialized” m4 (with reduced talonid and talonid cuspids, except the hypoconulid), features that make it possible to identify specimens from Itaboraí and Laguna Fría as Nemolestes. This taxon occurred from the early Eocene (Itaboraian SALMA) to the middle Eocene (Casamayoran SALMA). Nemolestes represents the oldest known hypercarnivorous sparassodont. The inclusion of Nemolestes and Procladosictis in a comprehensive phylogenetic analysis recovered them in a polytomy as the sister taxa of Borhyaenoidea and a new unnamed clade that includes Lycopsis, Dukecynus, Hathliacynidae, Hondadelphys and Stylocynus. Nemolestes shares with these taxa, but not Patene, the presence of a “carnassialized” m4. Nemolestes differs from known borhyaenoids in the absence of a medially positioned protoconid and short anterolabial cingulid. Therefore, Nemolestes is an early lineage of Sparassodonta. “Procladosictis erecta” is a lower premolar of the unnamed clade, as it shows symmetric walls and a small precingulid. "Procladosictis erecta" should be, in fact, referred to Procladosictis. Our phylogenetic analysis indicates that during the early middle Eocene (Laguna Fría and La Barda faunas), the unnamed clade and Borhyaenoidea had already diverged. Therefore, the evolutionary history of these groups is older than previously thought.

Docentes, investigadorxs y becarixs del Instituto Académico Pedagógico de Ciencias Sociales de la Universidad Nacional de Villa María: Contribuciones al último Congreso de la Sociedad Argentina de Análisis Político (julio 2023); Profesors, researchers and scholarship holders from Academic and Pedagogical Department of Social Sciences, National University Villa Maria UNVM Kunz, Daniela Ivana; Páez, Gonzalo Enrique; Pagliarone, María Florencia; Romano Roth, Carla; Tomassini, María Virginia Desde los años 80, cuando la ciencia política en Argentina inició un proceso de institucionalización como disciplina académica fuertemente vinculada con la “agenda de la democracia” hasta la más reciente diversificación temática y metodológica del campo, los congresos de la Sociedad Argentina de Análisis Político (SAAP) han venido constituyendo uno de los principales espacios de participación y debate politológico en el país. Precisamente, en estas páginas realizamos una breve síntesis de las contribuciones de un grupo de docentes, investigadores y becarixs vinculados a la Licenciatura en Ciencia Política del IAPCS de la UNVM al último Congreso organizado por la SAAP en julio de 2023. Los trabajos se organizan en cuatro áreas temáticas: identidades políticas en clave subnacional, actores sociopolíticos en la Provincia de Córdoba, Relaciones Internacionales de América Latina y políticas públicas de seguridad.

La «Selva de Montiel» una singularidad biogeográfica de la provincia de Entre Ríos.; The “Selva de Montiel”, a biogeographic singularity of the province of Entre Ríos Reales, César Fabricio La denominación de Selva de Montiel fue mencionada por primera vez en 1864 por el médico francés y geógrafo de la Confederación Argentina Martín de Moussy, referenciando como Selva de Montiel a los reconocidos bosques montieleros en su Description géographique et statistique de la Confédération Argentine. Bosch (1978) califica el nombre de selva como un error muy generalizado proveniente de autores extranjeros como Martín de Moussy, del que luego se desprendieron consideraciones igualmente opuestas a la realidad. Aunque no es propiamente una selva (formación arbórea con varios estratos, notable altura y diversidad especifica en su composición), recibió esa caracterización por parte de antiguos pobladores dado el aspecto enmarañado de su espinoso bosque y la espesura de sus principales cursos de agua, que tuvieron influencia florística directa de la región de la Selva Paranaense, con estructuras y especies en común, como enredaderas, lianas, líquenes, orquídeas y claveles del aire que prenden desde los árboles. Estas formaciones boscosas serían denominadas Selva de Montiel, más por su baja transitabilidad que por un carácter selvático.

Literatura argentina y extranjería: variaciones Piglia sobre Hudson; Argentine literature and foreigners: Piglia variations on Hudson Bracamonte, Jorge Alejandro Los vínculos construidos por la poética de Ricardo Piglia con la figura, trayectoria y obra de William Hudson recorren distintas etapas, diferentes variaciones. Respecto a Hudson, resulta decisiva para Piglia la valoración que Ezequiel Martínez Estrada hace de la obra y trayectoria de Hudson. Ello se detecta desde los años de formación del joven escritor Piglia, durante la década de 1950. Luego, durante las décadas de 1960 y 1970, el gradual y radical posicionamiento teórico y político-literario de Piglia lo llevará a considerar en algún momento la figura de Hudson como la de un extranjero de notable obra, pero en definitiva exótico y que permanece en una mirada colonizada respecto a la cultura argentina. Finalmente, Piglia revaloriza al Hudson lector y escritor, clave para las literaturas y culturas argentina y anglosajona, quien también es un crítico radical del capitalismo. Este ensayo interroga los matices de esos diferentes momentos.; The links built by Ricardo Piglia´s poetics with the figure, career and work of William Hudson go through different stages, different variations. Regarding Hudson, the assessment that Ezequiel Martínez Estrada makes of Hudson´s work and career is decisive for Piglia. This has been detected since the formative years of the young writer Piglia, during the 1950s. Later, during the 1960s and 1970s, Piglia´s gradual and radical theoretical and political-literary position let him consider, at some point, Hudson´s figure as that of a foreigner of remarkable work, but definitely exotic and that remains in a colonized look with respect to Argentine culture. Finally, Piglia revalues the reader and writer Hudson, key to Argentine and Anglo-Saxon literatures and cultures, who is also a radical critic of capitalism. This essay interrogates the nuances of those different moments.

Exploring biocultural diversity in urban ecosystems: an ethnobiological perspective Albuquerque, Ulysses; Ladio, Ana Haydee; Duarte Almada, Emmanuel; Vandebroek, Ina; Pulido Silva, María Teresa; Stern da Fonseca-Kruel, Viviane Urban ecosystems differ from non-urban ones in the strong and rapid biocultural dynamics generatedby the interactions between people from different cultures, at large spatial and temporal scales and veryfast rates. This opinion piece explores the concept of urban ethnobiology as a critical field of researchthat investigates the complex and dynamic biocultural systems that exist in urban environments. Weargue that interactions between humans and other life forms in urban ecosystems are influenced by acharacteristic set of social, cultural, and political factors that are linked to urban environments, suchas infrastructure development, population density, and governance structures. We emphasize the needfor an interdisciplinary approach that brings together experts from different fields to study the inherentcomplexity of these systems. By examining the sociocultural dynamics that shape the way urbanbiodiversity is perceived, used, and managed, we can gain deeper insights into the different dimensionsof socio-cultural biodiversity in urban areas.

Procesos de lucha obrera en el ex ingenio San Pablo (Tucumán), 1920-1965; Processes of workers’ struggle in the former San Pablo sugar mill (Tucumán), 1920-1965 Gianfrancisco, Maria Soledad; Campi, Daniel Enrique A. Los interrogantes que orientan estainvestigación sobre la experiencia de lalucha obrera en el ingenio San Pablo(Tucumán) entre 1920 y 1965 se centranen los procesos de toma de concienciade los trabajadores sobre sus derechos,los modos de manifestar sus demandasy la consolidación de una potente culturasindical. Metodológicamente se hacombinado la consulta de fuentes editas einéditas con entrevistas a ex trabajadores.; The questions that guide this research on the experience of workers’ struggle in the San Pablo sugar mill (Tucumán) between 1920 and 1965 focus on the processes of raising workers’ awareness about their rights, the ways of expressing their demands and the consolidation of a powerful union culture. Methodologically, the consultation of published and unpublished sources has been combined with interviews with former workers.

Ángel Guido, rector de la Universidad Nacional del Litoral (1948-1950): La pregunta por la emancipación en algunos de sus textos olvidados; Ángel Guido, Rector of the National University of Litoral (1948-1950): Exploring the Quest for Emancipation in his Overlooked Texts Antequera, María Florencia Algunos textos olvidados –esto es, poco o nulamente transitados por la crítica–, discursos proferidos por el arquitecto e ingeniero Ángel Guido (Rosario, 1896-1960) con motivo de su asunción como rector de la Universidad Nacional del Litoral (1948-1950) y un ramillete de materiales provenientes de sus disquisiciones estéticas, históricas y artísticas, sirven para examinar un interrogante fructífero –por productivo y recurrente– en su escritura y en su ideal americanista: la búsqueda de la emancipación. En efecto, al poner en diálogo materiales heteróclitos de su producción intelectual de fines de la década del cuarenta –textos y algunas imágenes– entendemos que estas textualidades de diverso registro y calibre bien pueden echar luz no solo sobre su singular búsqueda de un arte emancipado, sino que también pueden contribuir a bosquejar sus poco conocidos vínculos con el peronismo y, de este modo, ampliar aquello que se entiende por obra intelectual de Guido, auscultando un inexplorado episodio de la vida cultural de la primera mitad del siglo veinte en Argentina.; From some forgotten texts by the architect and engineer Ángel Guido (Rosario, 1896- 1960), including discourses as rector of the Universidad Nacional del Litoral (1948-1950) and some materials from his aesthetic, historical and artistic disquisitions, we discuss a productive and recurrent question in his writing and in his Americanist ideal: the pursuit of emancipation. Through the juxtaposition of diverse materials from his intellectual production of the late 1940s - texts and some images - we understand that these textualities may illuminate his singular search for an emancipated art and his links with Peronism. Furthermore, this paper sheds light on an unexplored episode in the cultural landscape of Argentina in the first half of the twentieth century, thus expanding our understanding of Guido's intellectual contributions."