New rhadinosuchine proterochampsids from the late Middle-early Late Triassic of southern Brazil enhance the diversity of archosauriforms Paes Neto, Voltaire; Lacerda, Marcel B.; Ezcurra, Martin Daniel; Raugust, Tiago; Trotteyn, Maria Jimena; Soares, Marina; Schultz, Cesar; Pretto, Flávio A.; Francischini, Heitor; Martinelli, Agustín Guillermo Proterochampsidae is a clade of non-archosaurian archosauriforms restrictedto the Middle to the Late Triassic of the Ischigualasto-Villa Union Basin ofArgentina and the Santa Maria Supersequence of Brazil. A reappraisal of proterochampsidspecimens from the Brazilian Dinodontosaurus AssemblageZone (AZ) of the Pinheiros-Chiniqua Sequence (late Ladinian-early Carnian)is presented here. One of the specimens was preliminary assigned to Chanaresuchussp., whose type species comes from the Massetognathus-ChanaresuchusAZ of the Chañares Formation of Argentina. However, our revisionindicates that it differs from Chanaresuchus, being more closely related to themiddle-late Carnian Rhadinosuchus gracilis. We therefore propose the newtaxon, Pinheirochampsa rodriguesi, to reallocate this specimen. Additionally,we present a revision of other putative Chanaresuchus occurrences in Brazil,including the only known specimen described for the Santacruzodon AZ (SantaCruz do Sul Sequence; early Carnian), also proposing it as a new taxon: Kuruxuchampsadornellesi. Both new species are characterized, among other features, bytransverse expansion of the anterior end of the rostrum, similar to the conditionpresent in Rhadinosuchus, but absent in Chanaresuchus, Gualosuchus, Pseudochampsa,and non-rhadinosuchine proterochampsids. These two new species expand the growing knowledge of the non-archosaurian archosauriform diversityduring the Middle-Late Triassic in South America and enhance faunal and chronologicalcomparisons between approximately coeval geological units betweenArgentina and Brazil.

New reptile shows dinosaurs and pterosaurs evolved among diverse precursors Müller, Rodrigo T.; Ezcurra, Martin Daniel; Garcia, Mauricio S.; Agnolin, Federico; Stocker, Michelle R.; Novas, Fernando Emilio; Soares, Marina; Kellner, Alexander Wilhelm Armin; Nesbitt, Sterling J. Dinosaurs and pterosaurs have remarkable diversity and disparity through most ofthe Mesozoic Era1–3. Soon after their origins, these reptiles diversified into a numberof long-lived lineages, evolved unprecedented ecologies (for example, flying, largeherbivorous forms) and spread across Pangaea4,5. Recent discoveries of dinosaurand pterosaur precursors6–10 demonstrated that these animals were also specioseand widespread, but those precursors have few if any well-preserved skulls, handsand associated skeletons11,12. Here we present a well-preserved partial skeleton(Upper Triassic, Brazil) of the new lagerpetid Venetoraptor gassenae gen. et sp. nov.that offers a more comprehensive look into the skull and ecology of one of theseprecursors. Its skull has a sharp, raptorial-like beak, preceding that of dinosaurs byaround 80 million years, and a large hand with long, trenchant claws that firmlyestablishes the loss of obligatory quadrupedalism in these precursor lineages.Combining anatomical information of the new species with other dinosaur andpterosaur precursors shows that morphological disparity of precursors resemblesthat of Triassic pterosaurs and exceeds that of Triassic dinosaurs. Thus, the ‘success’of pterosaurs and dinosaurs was a result of differential survival among a broaderpool of ecomorphological variation. Our results show that the morphologicaldiversity of ornithodirans started to flourish among early-diverging lineages andnot only after the origins of dinosaurs and pterosaurs.

Funcionamiento de distractores semánticos en un test neuropsicológico de relaciones taxonómicas; Functioning of Semantic Distractors in a Neuropsychological Test of Taxonomic Relationships Fernandez Zaionz, Axel Ramiro; Vivas, Leticia Yanina Conocer el funcionamiento de las relaciones conceptuales es sumamente importante para la evaluación neuropsicológica, ya que se ven afectadas por muchos síndromes neuropsicológicos . La selección de los distractores adecuados resulta crucial para poder graduar la dificultad de las pruebas. En este trabajo, se estudió el efecto de la fuerza de correspondencia (FC) entre opciones de respuesta en una prueba de asociación semántica, denominada TAXON, que evalúa la capacidad de identificar relaciones taxonómicas. La muestra incluyó 43 adultos mayores de 65 años sin patología. Se analizó la correlación entre la diferencia en la FC de los estímulos y los tiempos (TR) y tasa de respuesta (TA). Además, se analizó si el dominio semántico de los ítems (vivo/no vivo) y el formato de presentación (verbal/pictórico) tenían influencia. Los resultados mostraron TR menores y TA mayores cuando la diferencia de correspondencia entre distractor y target era mayor. Además, se observó un efecto mayor en el formato pictórico.; Knowing how conceptual relationships work is ex-tremely important for neuropsychological evaluation, as many neuropsychological syndromes affect them. Selecting appropriate distractors is crucial for grading the difficulty of tests. This study examined the effect of correspondence strength (CS) between response options in a semantic as-sociation test called TAXON, which evaluates the ability to identify taxonomic relationships. The sample included 43 adults over 65 years old without pathology. The correla-tion between the difference in CS of stimuli and response times (RT) and response rate (RR) was analyzed, as well as if the semantic domain of items (living/non-living) and the presentation format (verbal/pictorial) had an influence. The results showed lower RT and higher RR when the cor-respondence difference between distractor and target was greater. Additionally, a greater effect was observed in the pictorial format.

Efectividad de facilitadores del uso de dispositivos tecnológicos en tareas de estimulación cognitiva en adultos mayores; Effectiveness of Facilitators of Use for Technological Devices in Cognitive Stimulation Tasks for Older Adults Lopez Moreno, Maria Celeste; Nicotra, María Georgina; Vivas, Jorge Ricardo; Malén Rotta, Ana Malén; Revollo Sarmiento, Elsa Araceli; Roumec, Bettina Susana; Vivas, Leticia Yanina El objetivo fue estudiar la efectividad de algunos facilitadores de uso en un laboratorio web interactivo multipropósito de estimulación cognitiva para personas mayores. Participaron 60 personas mayores divididas en tres grupos pareados: Experimental, Control Activo y Control Pasivo. Cada participante fue evaluado al principio y al final. Se extrajeron seis medidas de desempeño. Un ANOVA de medidas repetidas indicó que hubo mejoras entre el primer y el segundo momento de evaluación en todos los grupos para todas las medidas, salvo para el tiempo empleado. También hubo una interacción entre el cambio pre-post test y la pertenencia al Grupo en: precisión para llegar al ejercicio y número de intentos para finalizar el ejercicio, a favor del Grupo Experimental. Estos resultados indican que si bien los y las participantes mejoraron en el desempeño con solo ingresar repetidas veces, el uso de las herramientas de facilitación resultó útil mejorando aún más el grupo experimental en ciertos aspectos de la tarea.; The aim of this study was to investigate the effectiveness of certain facilitators in a multipurpose web-based interactive cognitive stimulation laboratory for older adults. Sixty older adults participated and were divided into three matched groups: Experimental, Active Control, and Passive Control. Each participant was assessed at the beginning and the end of the study, and six performance measures were extracted. A repeated measures ANOVA indicated that there were improvements between the first and second assessment moments for all groups in all measures, except for the time taken. Additionally, there was an interaction between pre and post test scores and group assignment in terms of accuracy in completing the exercise and the number of attempts made, favoring the experimental group. These findings suggest that while participants showed improvement in performance through repeated access alone, the use of facilitation tools proved beneficial in further enhancing the experimental group's performance in certain aspects of the task.

Using Student-Led Tutorials to Improve Student Performance in Challenging Courses Serra, Ramiro; Martinez, Maria Cecilia; Vertegaal, Cornelis J. C.; Sundaramoorthy, Prem; Bentum, Mark J. Contribution: This article describes how a peer learning strategy called student-led tutorials (SLTs) can improve student performance in an electromagnetism course (EM). This study provides empirical evidence on how promoting student active participation in collaborative problem-solving activities improves performance rates. Background: In 2019, an EM bachelor course introduced SLTs as a strategy to improve the 40% passing rates. Before SLTs, students perceived this course as very hard, uninteresting, disengaging, and nonfundamental to their studies. Intended Outcomes: A participatory environment that promotes active learning can deepen understanding of EM through problem discussion and peer collaboration. Application Design: This study uses an action research approach to analyze teaching practices and students performance. Based on this analysis, SLT is implemented and the results are examined. Drawing on professors' research on engineering education, traditional practice hours were transformed into SLT hours. Passing rates before and after the intervention were compared and correlated with SLT participation. In-depth qualitative interviews with students were conducted to understand how SLT related to their learning process. Findings: Since the intervention, the course passing rates increased 20%. More importantly, the grade distribution changed from a steep double exponential shape to a normal curve suggesting more students are doing better. There is a positive correlation between SLT participation and student performance. Students highly valued SLTs as a teaching strategy because it allowed discussion, enabled keeping up with the course pace, and created a culture of collaboration. Students also valued the mandatory aspect of SLTs, though they mentioned it increased the course workload.

La Democracia Cristiana durante la transición democrática: dinámica intrapartidaria y frentes electorales; Christian Democratic Party during Argentina’s democratic transition: intra-party dymanics and political fronts Gerbaldo, Gabriel El artículo analiza la dinámica intrapartidaria del Partido Demócrata Cristiano de Córdoba durante los años ochenta a través de la trayectoria de Ricardo del Barco, Jorge Gentile y Gonzalo Fernández. Los tres dirigentes democristianos permiten observar los fundamentos, actores intervinientes, cambios y continuidades de la construcción de frentes político-electorales con el peronismo renovador. Para ello, se recupera el vínculo de los actores con el peronismo y se avanza en el conocimiento de la experiencia específica de armado de la coalición observando las tensiones y conflictos intrapartidarios entre las distintas sub-coaliciones.; This paper analyzes the intra-party dynamic of Christian Democratic Party from Córdoba, Argentina, during the eighty decade The exam was through the political careers of Ricardo del Barco, Jorge Gentile and Gonzalo Fernandez which permitted us to understand the process of construction of political fronts with peronism’s renovator. The approach recovered links between these political leaders and justicialista’s party and this specific experience of political coalition in Córdoba. Therefore, the work presents the impact of political front’s construction with intra-party conflicts between sub-coalitions.

The impact of Li-bearing pegmatite mining on the dissolved geochemical signature of a mountain stream in the Pampean ranges, Central Argentina Marqués, Milagros; Pasquini, Andrea Ines; García, María Gabriela; Campodonico, Verena Agustina; Colombo, Fernando; Gaiero, Diego Marcelo; Lecomte, Karina Leticia The contamination of aquatic systems due to mining activities constitutes a great concern of the global mining industry, but only a few studies have specifically addressed the impact of Li-pegmatite mining on water quality. In order to provide data on this type of systems, we assessed the impact of mining activities carried out in a lithium-rich pegmatite of the Sierras Pampeanas, central Argentina, on the chemical composition of stream waters draining the site. In addition, we evaluated the occurrence of Li background anomalies in stream waters at basin scale. To achieve these goals, we analyzed the dissolved major and trace element composition of water samples collected upstream and downstream of the mine, characterized spatial trends, and identified elemental anomalies in comparison with the background chemical composition of stream waters in nearby watersheds. The obtained results reveal that mining activities in the study area do not represent a source of pollution to stream waters draining the mine, while dissolved Li concentrations higher than those measured in nearby basins may be a useful mineralization indicator in the early stages of this type of Li ores exploration, as it points to potentially fertile protoliths for the generation of Li-enriched magma.

Boundedness of Commutators of Integral Operators of Fractional Type and Mα,LrlogL Maximal Operator in Variable Lebesgue Spaces Ibañez Firnkorn, Gonzalo Hugo; Vallejos, Lucas Alejandro In this paper we study the commutators of integral operator T in variable Lebesgue spaces Lp(·)(Rn) , with p(· ) ∈ K(Rn) ∩ N∞(Rn) , where T is the operator with kernel K(x,y)=k1(x-A1y)⋯km(x-Amy),A1, ⋯ , Am are invertible matrices and each ki satisfies certain fractional size condition Sn-αi,Ψi , and certain fractional Hörmander condition Hn-αi,Ψi , with α1+ ⋯ + αm= n- α , 0 ≤ α< n and Ψ i are Young functions. We obtain the maximal operator Mα,LrlogLλ , with 1≤r

Phoretic self-propulsion of microbubbles may contribute to surface cleaning Ubal, Sebastian; Lu, Jiakai; Corvalan, Carlos Maria Self-propulsion of small bubbles and droplets through the action of surface-tension gradients is relevant to important processes in both nature and technology, ranging from Marangoni propulsion of microorganisms to transport in microfluidic devices. Here, we use high-fidelity simulations to characterize the fluid dynamical and interfacial phenomena underlying the spontaneous self-propulsion of a small bubble approaching a solid surface. The spreading of surface active contamination at the front of the bubble creates the surface-tension gradient which propels the bubble forward through the Marangoni effect. Results for finite Reynolds numbers and a deformable bubble show that the impact of the active bubble with the solid surface generates fluid stresses that may contribute to the cleaning of fouled surfaces. This effect, however, depends strongly on the initial separation between the bubble and the solid surface.

Los guardaparques como actores en la Educación Ambiental para la Biodiversidad Barahona, Alexandra Daiana; Campos, Claudia Monica; Llano, Carina Lourdes; Nudelman, Laura Ruth; Diaz Isenrath, Gabriela Beatriz Las áreas naturales protegidas (ANPs) son un excelente escenario para las acciones de Educación Ambiental para la Biodiversidad (EAB). El objetivo fue analizar las redes de actores sociales que los guardaparques identifican como implicados en la EAB de las ANPs. Las relaciones que establecen con los actores y las propuestas de EAB que llevan a cabo. Los resultados muestran que una diversidad de actores sociales se relaciona con los guardaparques (municipalidades, escuelas rurales, voluntarios de tecnicaturas, pobladores locales, investigadores, ONGs, visitantes, organismos gubernamentales) a través de relaciones de afinidad o de tensión. Las escuelas rurales facilitan las relaciones con los pobladores, mientras que, los organismos que detentan más poder no se perciben como interesados en apoyar a los guardaparques en la EAB.; Natural Protected Areas (NPAs) are an excellent setting for Environmental Education for Biodiversity (EEB) actions. The purpose of this study was to analyze the networks of social actors that the park rangers identify as being involved in the EEB in the NPA, the relationships they establish with the actors and the EEB proposals that park rangers carry out. The results showed that a diversity of social actors are related to park rangers (municipalities, rural schools, technical degree volunteers, local residents, researchers, NGOs, visitors, government agencies), through relationships of affinity or tension. Rural schools facilitated relations with local residents, while the organizations that held more power were not perceived as interested in supporting park rangers in the EEB.

Determinants and costs of strategic enrollment of landowners in a payments for ecosystem services program in a deforestation hotspot: The Argentine Chaco forest Nuñez Godoy, Cristina Cecilia; Branch, Lyn Clarke; Pienaar, Elizabeth F.; Núñez Regueiro, Mauricio Manuel Understanding landowners’ decisions about how much land to enroll in payments for ecosystem services (PES) programs is essential to strategically target lands for conservation, prevent forest fragmentation, and thus maintain ecosystem services. In this study, we targeted private lands surrounding and connecting public protected areas in a deforestation hotspot, the Argentine Chaco forest. We used alternatively configured PES contracts in choice experiments to understand landowners’ decisions regarding how much land to enroll in PES. We found that factors influencing decisions on how much land to enroll differ from those influencing willingness to participate in PES. The percentage of their property that landowners were willing to enroll in the program increased with higher payments and permitted land use that closely aligned with traditional land use, specifically cattle ranching under tree canopy. Contract length was important in willingness to enroll but not in amount of land enrolled. Payments required to enroll all land in our study area, and thus conserve an unfragmented landscape, exceeded the financial resources of the Argentine PES program. Designing PES to enroll private lands on smaller strategic areas, in conjunction with other conservation initiatives, would be more effective than attempting to use PES alone to conserve large landscapes.

Recitações musicais: leituras e devoções místicas no sufismo marroquino; Musical recitations: mystical readings and devotions in Moroccan Sufism Ferraz Bartel, Bruno O objetivo do texto é analisar a importância das recitações musicais para a produção do estado religioso entre os discípulos da confraria sufi Hamdouchiya. Os textos utilizados e as formas devocionais existentes forjam os significados convergentes da vida cotidiana dos adeptos. Essas ações devem ser profundamente monitoradas e aperfeiçoadas pelos sujeitos como uma condição necessária para sua eficácia ritual. Compreendo que o processo de recitação musical presente nos locais de culto deve ser analisado como um conjunto de práticas responsáveis pela criação de uma autonomia religiosa aos sujeitos.; This article aims to analyze the importance of musical recitations for the religious state (of mind/body) among the disciples of the Sufi brotherhood Hamdouchiya. The texts used and the existing devotional forms forge the converging meanings of the daily life of the adepts. These actions must be deeply monitored and perfected by the subjects as a necessary condition for their ritual effectiveness. I highlight the process of musical recitation present in places of worship must be analyzed as a set of practices responsible for creating religious autonomy for the subjects.

Primeras aproximaciones al paisaje arqueológico de Cerro Tres Tetas, Meseta Central de Santa Cruz; First aprroaches to the archaeological landscape of Cerro Tres Tetas, Central Plateau of Santa Cruz Skarbun, Fabiana; Frank, Ariel David; Valiza Davis, Catalina; Paunero, Rafael A partir del estudio del paisaje social, en este trabajo abordamos la forma en que fue habitada la localidad arqueológica Cerro Tres Tetas (Meseta Central de Santa Cruz), por sociedades cazadoras-recolectoras en el pasado. Para tener un acercamiento inicial al paisaje del área, realizamos prospecciones que incluyeron transectas sistemáticas, recorridos asistemáticos y relevamientos de arte rupestre. Estas tareas nos permitieron identificar rasgos significativos del paisaje –incluyendo la disponibilidad y distribución de recursos–, evaluar la presencia y localización de sitios al aire libre y reparados con arte rupestre y determinar la densidad y distribución de restos en superficie. Así, reconocimos características atractivas del paisaje para las sociedades pasadas. La distribución de restos líticos y del arte rupestre evidencian que este paisaje fue poblado con una intensidad media, aunque presentando variabilidad entre sectores. Asimismo, la distribución de fuentes y artefactos líticos da cuenta de que las tareas de manufactura identificadas a través de la localidad implicaron habitualmente el traslado de las materias primas hacia los lugares de producción.; By studying the social landscape, in this paper we analyze the way in which Cerro Tres Tetas archaeological locality (Central Plateau of Santa Cruz) was inhabited in the past by huntergatherer societies. As an initial approach to the local landscape, we performed systematic transects and unsystematic surveys as well as rock art recordings. These tasks allowed us to identify significant landscape traits-including the availability and distribution of resources-, to evaluate the presence and location of open-air sites as well as shelters with rock art, and to determine the density and distribution of surface remains. This way, we were able to recognize characteristics of the landscape which were attractive to past societies. The distribution of lithic remains and rock art shows that this landscape was occupied with a medium intensity, although there is variability between sectors. Likewise, the distribution of lithic sources and artifacts shows that the manufacturing tasks identified throughout the locality usually involved the transport of raw materials to the production sites.

El estrado en la pantalla: apuntes sobre el desarrollo de los juicios de lesa humanidad en Argentina desde la pandemia (2020-2023) Larralde Armas, Florencia En Argentina, los juicios de lesa humanidad han estado signados por el debate en torno a su divulgación pública desde sus inicios durante la apertura democrática en la década de los ochenta, hasta nuestros días. Sin embargo, con la llegada de la pandemia en marzo de 2020 se dio la apertura a una nueva etapa en relación a los vínculos entre medios y justicia penal durante el desarrollo de los juicios de lesa humanidad. En este artículo nos proponemos analizar las reconfiguraciones, así como las continuidades, discontinuidades, tensiones y pujas en torno a la dimensión comunicacional de los juicios de lesa humanidad, durante un singular período de virtualización de la justicia en medio de la crisis sanitaria por la pandemia por COVID-19. A través de un trabajo de campo con metodologías de la etnografía digital, tuvimos por objetivos reconstruir las primeras demandas y discusiones que desembocaron en el reinicio de los juicios; conceptualizar las distintas modalidades tecnológicas del desarrollo de los juicos de lesa humanidad a nivel nacional y los canales mediáticos por los cuales se garantizó el principio de publicidad en los distintos tribunales; y reflexionar en torno a las principales resistencias e innovaciones de este proceso que aun habiendo finalizado la pandemia continua desarrollándose a través de canales digitales.; In Argentina, trials against humanity have been marked by the debate around their public disclosure since its beginnings during the democratic opening in the eighties, up to the present day. However, with the arrival of the pandemic in March 2020, a new stage was opened in relation to the links between the media and criminal justice during the development of trials against humanity. In this article we intend to analyze the reconfigurations, as well as the continuities, discontinuities, tensions and struggles around the communicational dimension of trials against humanity, during a unique period of virtualization of justice in the midst of the health crisis caused by the pandemic by COVID-19. Through field work with digital ethnography methodologies, our objectives were to reconstruct the first demands and discussions that led to the restart of the trials; conceptualize the different technological modalities of the development of trials against humanity at the national level and the media channels through which the principle of publicity was guaranteed in the different courts; and reflect on the main resistances and innovations of this process that, even after the pandemic has ended, continues to develop through digital channels.

Los sentimientos sociales como soporte de la dominación; Social feelings as foundations for domination Gulman, Paula Sofía En el artículo objeto de este resumen se aborda el estudio de la vergüenza cultural y corporal como un sentimiento social que funciona como herramienta de dominación en la sociedad occidental. Empleamos una perspectiva interdisciplinaria que reúne los enfoques del psicoanálisis, la sociología, los estudios culturales y las corrientes feministas.Como punto de partida, tomamos los desarrollos de Norbert Elias sobre el proyecto civilizatorio occidental y los trabajos de Sigmund Freud sobre la constitución de la cultura para comprender la relación entre los sentimientos sociales y la lógica de dominación cultural. En conjunto, este análisis ofrece una comprensión de la vergüenza cultural y corporal como un fenómeno complejo y central en las dinámicas de poder y dominación de la sociedad occidental.; In this article we address the study of cultural and bodily shame as a social feeling that works as a tool of domination in Western society. We use an interdisciplinary perspective that intertwines approaches from psychoanalysis, sociology, cultural studies, and feminist theories. As a starting point, we draw on Norbert Elias' developments on the Western civilizing process and Sigmund Freud's works on the constitution of culture to understand the relationship between social feelings and the logic of cultural domination. Together, this analysis offers an understanding of cultural and bodily shame as a complex and central phenomenon in the dynamics of power and domination in Western society.

Corrigendum to “A generalization of Iseki's formula” Panzone, Pablo Andres; Ferrari, Mariano Andrés; Piovan, Luis Amadeo This corrigendum is written to correct an error in Theorem 1 in [1].

Estrategias empresariales en un contexto de crisis económica e incertidumbre: La Compañía General Fabril Financiera y el complejo agroindustrial algodonero en el Chaco, 1974-1982; Business strategies in a context of economic crises and uncertainty: The Compañía General Fabril Financiera and the cotton agroindustry in Chaco, 1974-1982 Belini, Claudio Fabian Este artículo tiene como objetivo analizar las estrategias productivas y financieras de la Compañía General Fabril Financiera entre 1974 y 1982. Se trata de un periodo breve pero crucial de la historia económica argentina, marcado por el estallido inflacionario que siguió al Rodrigazo de 1975 y el impacto, a partir del año siguiente, de las sucesivas políticas de estabilización y de reforma financiera de la última dictadura militar que culminaron en la apertura comercial y financiera de la economía, atraso cambiario y tasas de interés reales positivas. . En ese entorno macroeconómico que castigaba la producción, Fabril Financiera reforzó su estrategia de inversión en la industria textil, invirtiendo en una nueva tejeduría algodonera en Resistencia. Basado en el archivo de la empresa, este artículo estudia las estrategias de la firma y analiza el papel de ese nuevo proyecto industrial en el Chaco en la primera convocatoria de acreedores de 1981. Este estudio de historia de empresas intenta aportar nueva evidencia para el análisis de la crisis de la Industrialización Sustitutiva de Importaciones.; This article aims to analyze the productive and financial strategies of the Compañía General Fabril Financiera between 1974 and 1982. This was a brief but crucial period in Argentine economic history, characterized by the inflationary process that followed the Rodrigazo of 1975 and the impact, in the next year, of the successive stabilization programs and banking reform that culminated in liberal trade and financial policies, currency appreciation and positive real interest rates during the last military government. In this macroeconomic context, Fabril Financiera reinforced its investment strategy in the textile industry, investing in a new cotton weaving mill in Resistencia. Based on company archives, this article studies the strategies of the firm and analyzes the role of this new industrial project in Chaco in the first call for creditors in 1981. This business history study attempts to provide new evidence for the analysis of the crisis of Import Substitution Industrialization.

Gallbladder Cancer Risk and Indigenous South American Mapuche Ancestry: Instrumental Variable Analysis Using Ancestry-Informative Markers Zollner, Linda; Boekstegers, Felix; Barahona Ponce, Carol; Scherer, Dominique; Marcelain, Katherine; Gárate Calderón, Valentina; Waldenberger, Melanie; Morales, Erik; Rojas, Armando; Muñoz, César; Alvarado, Juan; Moisán, Fabricio; Spencer, Loreto; Nervi, Bruno; Carvajal, Daniel; Losada, Héctor; Almau, Mauricio; Fernández, Plinio; Olloquequi, Jordi; Carter, Alice R.; Miquel Poblete, Juan Francisco; Bustos, Bernabe Ignacio; Fuentes Guajardo, Macarena; Gonzalez-Jose, Rolando; Bortolini, Maria Cátira; Acuña Alonzo, Victor; Gallo, Carla; Ruiz-Linares, Andres; Rothhammer, Francisco; Lorenzo Bermejo, Justo A strong association between the proportion of indigenous South American Mapuche ancestry and the risk of gallbladder cancer (GBC) has been reported in observational studies. Chileans show the highest incidence of GBC worldwide, and the Mapuche are the largest indigenous people in Chile. We set out to assess the confounding-free effect of the individual proportion of Mapuche ancestry on GBC risk and to investigate the mediating effects of gallstone disease and body mass index (BMI) on this association. Genetic markers of Mapuche ancestry were selected based on the informativeness for assignment measure, and then used as instrumental variables in two-sample Mendelian randomization analyses and complementary sensitivity analyses. Results suggested a putatively causal effect of Mapuche ancestry on GBC risk (inverse variance-weighted (IVW) risk increase of 0.8% per 1% increase in Mapuche ancestry proportion, 95% CI 0.4% to 1.2%, p = 6.7 × 10−5) and also on gallstone disease (3.6% IVW risk increase, 95% CI 3.1% to 4.0%), pointing to a mediating effect of gallstones on the association between Mapuche ancestry and GBC. In contrast, the proportion of Mapuche ancestry showed a negative effect on BMI (IVW estimate −0.006 kg/m2, 95% CI −0.009 to −0.003). The results presented here may have significant implications for GBC prevention and are important for future admixture mapping studies. Given that the association between the individual proportion of Mapuche ancestry and GBC risk previously noted in observational studies appears to be free of confounding, primary and secondary prevention strategies that consider genetic ancestry could be particularly efficient.

Derecho a la ciudad e integración socio urbana en los barrios populares de Tandil: Análisis de las políticas públicas dirigidas a la urbanización de asentamientos precarios en una ciudad intermedia de la provincia de Buenos Aires, Argentina; Right to the city and socio-urban integration in the popular neighborhoods of Tandil: Analysis of public policies aimed at the urbanization of precarious settlements in an intermediate city in the province of Buenos Aires, Argentina; Direito à cidade e integração sócio-urbana nos bairros populares de Tandil: Análise de políticas públicas voltadas para a urbanização de assentamentos precários em uma cidade intermediária da província de Buenos Aires, Argentina Migueltorena, Alejandro En las últimas dos décadas se observa un incremento de la informalidad urbana en la ciudad de Tandil, que se tradujo tanto en el aumento del número de barrios populares como en el crecimiento de los ya existentes. Sin embargo, recientemente se llevaron a cabo distintas obras de integración socio-urbana que generaron una mejora en las condiciones de vida de la población. El objetivo del trabajo consiste en analizar las políticas públicas dirigidas a la urbanización de los barrios populares en Tandil, provincia de Buenos Aires, Argentina. Para ello, se considerará el posicionamiento que el gobierno municipal ha tomado frente a las ocupaciones de tierras que ocurrieron en los últimos años y las acciones generadas por los estados provincial y nacional. En lo referido a la metodología, se utilizarán datos provenientes de diferentes registros públicos, también fuentes periodísticas e información recabada en distintas instancias de trabajo de campo.; In the last two decades, an increase in urban informality has been observed in the city of Tandil, which translated into both the increase in the number of popular neighborhoods and the growth of existing ones. However, different socio-urban integration works have recently been carried out that have generated an improvement in the living conditions of the population. The objective of the work is to analyze the public policies aimed at the urbanization of popular neighborhoods in Tandil, province of Buenos Aires, Argentina. For this, the position that the municipal government has taken in the face of the land occupations that have occurred in recent years and the actions generated by the provincial and national States will be considered. Regarding the methodology, data from different public records will be used, as well as journalistic sources and information collected in different instances of field work.; Nas últimas duas décadas, observou-se un aumento da informalidade urbana na cidade de Tandil, o que se traduziu tanto no aumento do número de bairros populares quanto no crescimento dos existentes. No entanto, recentemente foram realizados diversas obras de integração sócio-urbana que geraram uma melhoria nas condições de vida da população. O objetivo do trabalho é analisar as políticas públicas voltadas à urbanização de bairros populares em Tandil, província de Buenos Aires, Argentina. Para isso, será considerado o posicionamento que o governo municipal tem tomado diante das ocupações de terras ocorridas nos últimos anos e as ações geradas pelos Estados provinciais e o Estado nacional. Quanto à metodologia, serão utilizados dados de diferentes registros públicos, assim como fontes jornalísticas e informações coletadas em diferentes instâncias de trabalho de campo.

Etnobotánica de los criollos del Chaco Subhúmedo argentino I: Correspondencias botánico-fitonímicas y caracterización general de un nuevo complejo biocultural Scarpa, Gustavo Fabián El objetivo general del trabajo es caracterizar como nuevo complejo biocultural a los Criollos del Chaco Subhúmedo argentino, describir las correspondencias botánicas de su fitonimia y efectuar una caracterización general de su etnobotánica. Se efectuaron seis trabajos de campo entre octubre de 2017 y marzo de 2022 en el centro-norte de la provincia del Chaco. Se aplicó la metodología etnobotánica clásica consistente en la realización de entrevistas y colección de material de herbario con 51 colaboradores de la zona. Se obtuvieron 541 correspondencias totales entre 369 taxa botánicos y 457 tipos de nombresvulgares a partir de 2075 reportes. Se registraron 1625 usos o significados criollos referidos a un total de 420 taxa a lo largo de 4290 reportes o menciones totales. Los resultados de comparaciones cuantitativas con las correspondencias fitonímicas criollas registradas en áreas vecinas del Chaco Subhúmedo sugieren que estas últimas pertenecen al mismo complejo biocultural aquí propuesto, las cuales añadidas a las obtenidas a campo totalizan 837 correspondencias entre 662 tipos de nombres vulgares asignados a 537 taxa vegetales y tres hongos. Por otra parte, los resultados de las comparaciones cuantitativas entre estafitonimia y las halladas en investigaciones etnobotánicas con criollos del Chaco Húmedo y Semiárido sugieren diferencias sustanciales entre sí, lo cual reafirmaría la condición de nuevo complejo biocultural de los criollos del Chaco Subhúmedo.; The general aim of this work is to distinguish and identify the Creole of the Argentine Subhumid Chaco as a new bio-cultural complex, to describe the botanical correspondences of their phytonymy, and to carry out a general characterization of their ethnobotany. Six field works were carried out between October 2017 and March 2022 in the center-north of Chaco Province. Classic ethnobotanical methodology was applied. This consisted of interviews and the collection of herbarium material with 51 collaborators from the area. A total of 541 matches between 369 botanical taxa and 457 types of vernacular names were obtained from 2075 reports; 1625 Criollos’ plant uses or meanings were registered. This refers to a total of 420 taxa throughout 4290 reports or mentions. Results from quantitative comparisons with Criollos’ phytonymic correspondences registered in neighboring areas of the Subhumid Chaco allow us to infer that the latter belong to the same bio-cultural complex proposed here. If we added these phytonyms to those obtained in the field it makes a total of 837 correspondences among 662 types of vernacular names assigned to 537 plant taxa, and three mushrooms. On the other hand, results of the quantitative comparisons between this phytonymy and those found in ethnobotanical investigations with Criollos from the Humid and Semiarid Chaco allow us to infer substantial differences between them, which reaffirms the condition of the Criollos of the Subhumid Chaco as a new bio-cultural complex.