Teoría política crítica [esbozo programático]; Critical political theory program outline [program outline] Biset, Emmanuel El objetivo del artículo es presentar de modo programático qué puede entenderse por “teoría política crítica”. Me propongo dar lugar a esta definición en una serie de pasos: primero, analizando cuáles serían los “asuntos” de una teoría política crítica, o si se quiere, cuáles son los problemas y preguntas que se plantea; segundo, precisando los “modos” de ejercer esas preguntas, precisar lo que se podría llamar una metodología y mostrando cómo constituye una forma dela subjetividad. Desde estos elementos, el objetivo es proponer una definición de teoría política crítica destacando los problemas y desafíos que surgen allí.; The aim of the paper is to present in a programmatic way what can be understood by “critical political theory”. I intend to give rise to this definition in a series of steps: first, by analyzing what is the “matter” of a critical political theory would be, or, what the problems and questions are; second, by specifying the “ways” of exercising these questions, by specifying what might be called a “methodology” and by showing how it constitutes a form of subjectivity. From these elements, the objective is to propose a definition of critical politicaltheory highlighting the problems and challenges that arisethere.

Asistencia técnica y extensión rural a sectores subalternos del agro: Transformaciones y estrategias en el marco del Aislamiento Social Preventivo y Obligatorio; Technical assistance and rural extension to subaltern sectors of agriculture: Transformations and strategies in the framework of Preventive and Mandatory Social Isolation González Maraschio, María Fernanda; Marcos, Maria Florencia La actividad agropecuaria fue una de las pocas habilitadas en el marco del Aislamiento Social Preventivo y Obligatorio (ASPO) que se decretó en el marco de la pandemia por Covid-19 el 20 de marzo del 2020 en Argentina. Esta actividad, por sus características generales, queda al margen de las suspensiones o cambios que sí estuvieron presentes en otras ramas económicas. Parte del universo de productores en Argentina está constituido por un sector que desde las políticas estatales se denominan agricultores familiares y gran parte de este segmento es el que produce alimentos frescos para la población. Este sector también se constituye como beneficiario de asistencia técnica y extensión rural que brindan algunas instituciones tanto estatales como no estatales.En el siguiente artículo se busca describir y analizar los cambios y las continuidades de las actividades de asistencia técnica y extensión rural a la agricultura familiar por parte de agentes estatales y no estatales a través de los datos que se producen apartir de una encuesta diseñada y distribuida por las autoras. Se trata de una propuesta exploratoria y descriptiva en la cual se pueden vislumbrar diversas estrategias y modalidades que se han dado las/os extensionistas rurales en la organización del trabajo y en nuevas formas de vinculación tanto con los/as productores como con las instituciones.; Agriculture was one of the few enabled activities within the framework of the Preventive and Mandatory Social Isolation (ASPO) that was decreed in the Covid-19 pandemic on March 20, 2020 in Argentina. This activity, due to its general characteristics, remains outside the suspensions or changes that were present in other economic branches. Part of the universe of agricultural producers in Argentina are called family farmers, name that comes from state policies, and a large part of this segment produces fresh food for the population. This sector is also a beneficiary of technical assistance and rural extension provided by some state and non-state institutions. The following article aims to describe and analyze the changes and continuities of technical assistance and rural extension activities to family farming by state and nonstate agents through the data produced from a survey designed and distributed by the authors of this article. It is an exploratory and descriptive proposal in which it is possible to glimpse various strategies and modalities that rural extension workers have given themselves in the organization of work and in new forms of linkage with both producers and institutions.

The magnitude of behavioural responses to artificial light at night depends on the ecological context in a coastal marine ecosystem engineer Nuñez, Jesus Dario; Sbragaglia, V.; Spivak, Eduardo Daniel; Chiaradia, Nicolas Mariano; Luppi, Tomas Atilio Artificial light at night (ALAN) is one of the most extensive human geographic disturbances to wildlife. ALAN can have ecological and evolutionary effects on individual organisms, which in turn can affect populations, communities and ecosystems. Although understanding of the effects of ALAN on the ecology and biology of organisms has increased in recent years, most of these advances are in terrestrial environments, but scarce in marine habitats, especially in ecologically important transition areas such as saltmarshes. Here, we study the effects of ALAN on the behavioural budget (i.e. the proportion of time spent performing feeding, burrow maintenance and concealment) of the South American intertidal crab Neohelice granulata, which is an ecosystem engineer of coastal salt marshes. Moreover, we compared the impact of a gradient of ALAN between two different saltmarshes with contrasting environmental characteristics. Our results showed a relationship between ALAN and the behavioural budget. In particular, we showed that an increase in ALAN drove an increase in time spent maintaining burrows at the expense of time spent concealed in the burrow or feeding outside it. Such effects showed slightly different patterns in the two saltmarshes, possibly related to the reproductive value of burrows for mating and to predation risk. Considering the ecosystem role of N. granulata, we argue that the different effect of ALAN on its behavioural budget could have ecosystem effects that differ between the two saltmarshes studied here.

Spatial distribution patterns and identification of microplastics on intertidal sediments from urban and semi-natural SW Atlantic estuaries Diaz Jaramillo, Mauricio Javier; Islas, María Soledad; Gonzalez, Mariana Although estuaries act as a sink of many pollutants, the assessment of microplastics pollution in these transition environments remain scarce or unknown. Sediments from estuarine intertidal areas possess a great ecological concern but also could act as a sink of both buoyant and non-buoyant plastic debris. In this work, we have compared microplastic abundances and their main characteristics (size, shape, colour and polymer type) on intertidal sediments from SW Atlantic Argentinean estuaries (Samborombon, Mar Chiquita, Quequen Grande and Bahía Blanca). The mean microplastics abundance in surface sediments among estuaries was ranged from 0 to 1030 ± 657 items per kg d. w. Upper intertidal areas have shown significant higher microplastic abundances in comparison with lower intertidal zones (p < 0.05). In general, higher mean abundances were observed in surface (0e10 cm) compared to deeper sediments (10e30 cm), which revealed recent deposition trends of microplastics particles. However, higher microplastic abundances were observed in deeper sediments from Bahía Blanca (p < 0.05). Large (MPs, 1 e5 mm) and small microplastics (MMPs, 1e0.1 mm) were observed in sediments from all estuaries, representing from 17 to 100% of total microplastics abundance. In terms of shape, fragments and films forms were dominant in all samples while fibers and foams were moderately or poorly represented. White, black, blue and transparent particles were observed as the main colour contribution of microplastics in sediments. The most common polymers identified included polyethylene, polyethylene terephthalate/polyester, polyvinyl chloride and polypropylene. The results showed that microplastic characteristics are different among the estuarine environments, which suggests different anthropogenic sources. Besides, deeper sediments should also be included on intertidal sediment monitoring to identify potential environmental liabilities from anthropogenically impacted estuaries.

La acreditación universitaria: una apuesta de internacionalización con integración regional en América Latina; University accreditation: acommitment to internationalization with regional integration in Latin America Abarzúa Cutroni, Anabella Carolina Hasta el momento, los que sintetizamos en la idea de “estrategia de internacionalización con regionalización” parece ser una alternativa plausible a la internacionalización sin concesiones que se plantea a escala mundial. Es en este entramado político regional que las universidades de América Latina, sobre todo las más prestigiosas y antiguas, pueden preservar su autonomía en pos de definir y redefinir su misión social y educativa. Los debates político-académico que han tenido lugar en las CRES dan cuenta de esto, más allá de las morigeraciones diplomáticas que sufren esas ideas a la hora de traducirse en la “postura de América Latina” en una organización atravesada por múltiples intereses como es la UNESCO. La acreditación regional de carreras (y su faceta jurídica la convalidación de títulos profesionales) es el “nudo” que podría facilitar procesos de integración académica regional ya que han demostrado incrementar movilidades y podrían traer consigo la internacionalización de los curriculums. El caso del ARCU-SUR en el marco del MERCOSUR es un ejemplo de las dificultades que implica traducir una recomendación experta en una política pública factible, con normas e instrumentos que le permitan alcanzar los objetivos propuestos para la política en un período racional de tiempo. Hasta el momento las acreditaciones han sido lentas y no han podido abarcar un abanico demasiado amplio de disciplinas y profesiones. Atender a la heterogeneidad institucional de las universidades respetando su autonomía es el principal problema a resolver a la hora de diseñar la implementación de este tipo de políticas.; So far, what we synthesize in the idea of internationalization strategy with regionalization seems to be a plausible alternative to the uncompromising internatiionalization that is proposed on a global scale. It is in this regional political framework that Latin American universities, especially the most prestigious and oldest, can preserve their autonomy in order to defi ne and redefi ne their social and educational mission. The political-academic debates that have taken place in the CRES give an account of this. The regional accreditation of careers (and its legal facet, the validation of professional qualifications) is the “knot” that could facilitate regional academic integration processes since they have shown to increase mobility and could bring about the internacionalization of curricula. The case of ARCU-SUR within the MERCOSUR framework is an example of the dificulties involved in translating an expert recommendation into a feasible public policy, with norms and instruments that allow it to achieve the proposed policy objectives in a rational period of time.

Habitus lésbico: identidad, activismo y comunidad; Lesbian habitus: identity, activism and community Malnis, Cecilia En este artículo presentaremos un avance de la investigación sobre el tema de la experiencia y la identidad política de activistas lesbianas en Argentina, buscando comprender las complejas relaciones que hay entre la estructura, la acción social y la conformación de la identidad. El trabajo propone a la categoría de habitus como una herramienta teórica útil para reflexionar sobre dichas experiencias comprendidas en su estar/ser/pensar politizado y disidente que vuelve a las lesbianas algo más que un grupo sociológico de personas: son un polo de antagonismo y su identidad se construye colectivamente en la lucha. El marco teórico vuelve a abrir las clásicas discusiones en el terreno de la sociología, que serán reconciliadas con los aportes de Pierre Bourdieu y su constructivismo estructuralista, así como por las contribuciones de pensadoras feministas y materialistas del campo del lesbianismo.; In this article I share part of my research on the experience and political identity of lesbian activists in Argentina, seeking to shed light on the complex relationship between structure, social action and identity formation. The work proposes the category of habitus to reflect on the experience of lesbian activists. Through the lesbian/dissident habitus, understood as feeling/being/thinking, lesbians become more than a sociological group of people: they are a pole of antagonism and their identity is collectively constructed in the struggle. This theoretical framework reopens the classic discussions in the field of sociology, which will be reconciled with the contributions of Pierre Bourdieu and his structuralist constructivism, as well as by the contributions of feminist and materialist thinkers from the field of lesbian theory.

Short communication: A potential role of tannins in the control of American Foulbrood Giménez Martínez, Pablo Darian; Maggi, Matías Daniel; Fuselli, Sandra Rosa Aim of study: To evaluate the use of tannins extracts in the control of the American foulbrood pathology and to investigate if these extracts present levels of toxicity on Apis mellifera. Area of study: Paenibacillus larvae strains C1 and C2 were from Balcarce, province of Buenos Aires, strain C6 from Rio Cuarto, in Cordoba province and strain C9 from Concordia in Entre Rios province. Bees larvae used for toxicological assays were collected in Santa Paula experimental apiary, Mar del Plata (belonging to the Centro de Investigación en Abejas Sociales (CIAS-IIPROSAM) from UNMdP. Material and methods: The minimal inhibitory concentration (MIC) of five different tannin extracts were obtained by agar diffusion method on four P. larvae strains; using the MIC value, the toxicity test on A. mellifera larvae was performed afterwards. Main results: The MIC value was in the range of 6.9 to 898.6 µg/mL. Three tannin extracts did not show toxicity against bee larvae; however, those that were fed with the latter showed a significant increase in weight. Research highlights: Three tannins extracts showed a good antimicrobial activity against P. larvae and they did not show toxicity against bee larvae.

Paideias decoloniales: ensayos de formación en la literatura franco-antillana; Decolonial Paideias: essays of formation in Franco-Antillean Literature Bonfiglio, Florencia Esta investigación indaga en dos textos clave de la ensayística franco-antillana del siglo XX que comparten una función formativa y un objetivo común de concientización racial y social. Luego de una reflexión sobre los conceptos de cultura y colonialismo, abordaremos el clásico ensayo del etnólogo haitiano Jean Price-Mars Así habló el tío (1928), como un antecedente de Piel negra, máscaras blancas (1952) del psiquiatra martiniqueño Frantz Fanon. Ambos constituyen “ensayos de formación” descolonizadores en los que diversas matrices discursivas –la investigación etnográfica, el psicoanálisis–, relacionadas con las diferentes proveniencias disciplinares de sus autores, son moduladas por una función pedagógica determinante y el predominio de patrones narrativos como el moderno relato de formación o Bildungsroman. Leídos como paideias decoloniales, ambos ensayos plantean la urgencia de una educación opuesta a la “asimilación” francesa, que implica un desaprendizaje de las ideas, creencias y valores hegemónicos “blancos”. Como veremos, el desarrollo de un programa formativo descolonizador es profundizado por Fanon de modo radical en cuanto no solo denuncia, como lo hiciera Price-Mars, la alienación de aquellos sujetos de piel negra que adoptan máscaras blancas, sino que alerta también respecto de la mística y reivindicativa négritude que cae de modo involuntario en las trampas del colonialismo.; The paper examines two key essays from the 20th century French Caribbean which share a formative function and a common purpose of raising racial and social awareness. After a reflection on the concepts of culture and colonialism, we will look at the classic So spoke the uncle (1928) by Haitian ethnologist Jean Price-Mars as an antecedent of Black Skin, White Masks (1952) by Martinican psychiatrist Frantz Fanon. Both constitute decolonizing “essays of formation” in which diverse discursive formats –ethnographic research, psychoanalysis–, linked with the authors’ different disciplinary origins, are modulated by a decisive pedagogical function and the predominance of narrative patterns such as the modern novel of formation or Bildungsroman. Read as decolonial lessons, both essays express the urgent need for an education opposed to French “assimilation”, which implies a de- learning of “White” hegemonic ideas, beliefs, and values. As we will see, the development of a decolonizing formative program is furthered by Fanon in a radical way since he not only denounces, as Price-Mars had previously done, the alienation of those who possess black skin and adopt white masks; he also warns against the mystic and enthusiastic négritude which unwillingly falls into the trap of colonialism.

Estudio de las propiedades anticorrosivas sobre acero SAE 1010 de extractos acuosos de romero (Rosmarinus officinalis), laurel (Laurus nobilis) y falso incienso (Plectranthus coleoides); Study of the anticorrosive properties on SAE 1010 steel of rosemary (Rosmarinus officinalis), laurel (Laurus nobilis) and false incense (Plectranthus coleoides) Byrne, Christian Eduardo; Martin Ramirez, Mariano Esteban; Di Santo, Ezequiel; Cristiano, Nicol; Deya, Marta Cecilia; D'alessandro, Oriana Las hojas de las plantas perennes Rosmarinus officinalis, Laurus nobilis y Plectranthus coleoides presentan una gran cantidad de compuestos químicos que contienen heteroátomos en su estructura. Diversos estudios han reportado que este tipo de heterocompuestos presentan una gran afinidad química por las superficies metálicas. En este trabajo se presenta la obtención, caracterización y estudio del desempeño anticorrosivo sobre acero SAE 1010 de los extractos acuosos de las hojas de las plantas perennes antes mencionadas. Las especies vegetales fueron cultivadas y cosechadas en la zona del Gran La Plata, Provincia de Buenos Aires, República Argentina. La preparación de los extractos acuosos se realizó mediante la técnica de maceración.El residuo sólido de los extractos acuosos se caracterizó mediante espectroscopia infrarroja con transformada de Fourier (FTIR). La evaluación electroquímica se llevó a cabo mediante la exposición de muestras de acero SAE 1010 durante 24 h a un medio corrosivo en presencia de cada uno de los extractos, y el posterior análisis de las superficies obtenidas a través de microscopía electrónica de barrido (SEM) y espectroscopia de dispersión de rayos X (EDX). Los resultados fueron comparados con los obtenidos utilizando hidrato de polifosfato de zinc y aluminio (ZAPP), un pigmento anticorrosivo comercial. Los resultados obtenidos permiten concluir que los extractos de las tres especies vegetales inhiben la corrosión del acero SAE 1010 de manera comparable a la efectuada por ZAPP, siendo el extracto de Plectranthus coleoides el que presenta la mejor acción anticorrosiva.; The leaves of perennials plants Rosmarinus officinalis, Laurus nobilis and Plectranthus coleoides have a large number of chemical compounds that contain heteroatoms in their structure. This type of heterocompounds has been reported to have chemical affinity for metal surfaces. This work presents the obtaining, characterization and study of the anticorrosive performance on SAE 1010 steel of the aqueous extracts of the aforementioned perennials plants. The plant species were cultivated and harvested in the Greater La Plata area, Province of Buenos Aires, Argentine Republic. The preparation of the aqueous extracts was carried out using the maceration technique. The solid residue of the aqueous extracts was characterized by Fourier transform infrared spectroscopy (FTIR). Electrochemical evaluation was accomplished by linear polarization tests. The anticorrosive performance was determined by exposing SAE 1010 steel samples for 24 h to a corrosive medium in the presence of each of the extracts, and the subsequent analysis of the surfaces obtained through scanning electron microscopy (SEM) and X-ray scattering spectroscopy (EDX). The results were compared with those obtained using zinc aluminum polyphosphate hydrate (ZAPP), a commercial anticorrosive pigment. The results obtained allow us to conclude that the extracts of the three plants inhibit the corrosion of SAE 1010 steel in a manner comparable to that carried out by ZAPP, with the extract of Plectranthus coleoides being the one that presents the best anticorrosive action.

La constitución de la conciencia volitiva y sus implicancias para la ética fenomenológica en Husserl; The constitution of volitional consciousness and its implications for phenomenological ethics in Husser Cabrera, Celia Olga El artículo aborda los aspectos centrales de la concepción husserliana de la conciencia volitiva, atendiendo a su estructura, sus modalidades y sus implicancias éticas. Luego de establecer los lineamientos fundamentales de la fenomenología temprana de la voluntad, se analiza su significado desde el punto de vista de la racionalidad práctica, enfatizando la relación entre la voluntad y lo prácticamente posible. Finalmente, se profundiza el análisis de este vínculo mediante la consideración de la ética tardía.; The paper approaches the central aspects of Husserl´s conception of volitional consciousness, concentrating on its structure, its modalities and its ethical implications. After dealing with the fundamental traits of the early phenomenology of will, we address its meaning from the point of view of practical reason, emphasising the relationship between the will and practical possibility. Finally, we go deeper in the analysis of this relationship by taking into account Husserl’s late ethics.

Interculturalidades en danza: Recreaciones del imaginario identitario argentino Citro, Silvia Viviana This article analyzes how Argentine cultural policies between 2010 and 2015 sought to challenge the traditional identity imaginary of Argentinians as White Europeans. For this purpose, I initially made a genealogy of the main transformations of these policies and imaginaries to later focus on the performances of the Combinado Argentino de Danza (CAD) in the celebrations to commemorate the birth of Argentina as a nation state organized by the National Cultural Ministry. CAD was the first group on the local scene to propose combining national folk genres that reevaluate indigenous influences with hip hop, modern dance and electronic music, prompting artists from different regional and esthetic origins to work together. This case forms the basis for my examination of the ways in which global multiculturalist ideologies have been reworked locally as political attempts to legitimize a new intercultural, popular and non-sexist national imaginary.

The need for standardized reporting of research findings in the field of quality of care Garcia Elorrio, Ezequiel; Aziz, Sheikh The fields of healthcare quality and patient safety are not immune to the concerns being expressed across several disciplines about the lack of transparency and reproducibility of research. The use of reporting guidelines is not a panacea, but it can help in promoting more consistent and complete reporting of research findings. This year, we will strongly be encouraging authors of submissions to IJQHC to, where it exists, complete an accompanying checklist of the relevant reporting guideline, and from 2022 we plan to insist on this for all relevant research articles.

Two new freshwater planarian species (Platyhelminthes: Tricladida: Dugesiidae) partially sympatric in Argentinean Patagonia Lenguas Francavilla, Marina Matilde; Negrete, Lisandro Hector Luis; Martinez Aquino, Andres; Damborenea, Maria Cristina; Brusa, Francisco Girardia Ball, 1974 is the most diverse and widely distributed genus of the family Dugesiidae (Platyhelminthes: Continenticola) in the Neotropical region. Seven out of the 52 species of the genus are known for Argentina. The Somuncurá Plateau is a region in northern Patagonia with several endemic flora and fauna, but little is known about the free-living Platyhelminthes. We describe two new species of Girardia partially inhabiting in sympatry in the Somuncurá Plateau: Girardia somuncura sp. nov. and Girardia tomasi sp. nov. The identification criteria that we followed was an integrative taxonomic approach based on morphological and molecular data. Thus, we used anatomical features focused on the reproductive system, together with a phylogenetic analysis, using a mitochondrial (COI barcode region) genetic marker. This study is the first phylogenetic analysis of the genus Girardia in which we include the southernmost representatives of America here described, thus making it possible to incorporate them in global phylogenies.; : Girardia Ball, 1974 est le genre de la famille des dugésides (plathelminthes : continenticoles) qui présente la plus grande diversité et la plus grande aire de répartition géographique dans la région néotropicale. Sept des cinquante-deux espèces connues du genre ont été recensées en Argentine. Le plateau de Somuncurá est une région du nord de la Patagonie comptant plusieurs assemblages floristiques et fauniques endémiques, mais les connaissances sur les plathelminthes libres sont très limitées. Nous décrivons deux nouvelles espèces de Girardia vivant en sympatrie partielle sur le plateau de Somuncurá : Girardia somuncura sp. nov. et Girardia tomasi sp. nov. Le critère d’identification que nous avons utilisé consiste en une approche taxonomique intégrée reposant sur des données morphologiques et moléculaires. Ainsi, nous avons utilisé des éléments anatomiques centrés sur le système reproducteur, combinés à l’analyse phylogénétique ayant recours à un marqueur génétique mitochondrial (région des codes à barres COI). L’étude constitue la première analyse phylogénétique du genre Girardia, dans lequel nous incluons les représentants les plus méridionaux des Amériques, décrits dans l’article, ce qui permet de les incorporer aux phylogénies mondiales.

Effects of time perspective and self-control on psychological distress: A cross-sectional study in an Argentinian sample Germano, Guadalupe; Brenlla, María Elena Time perspective (TP) is a fundamental trait of human's psychological perception of time and can affect different aspects of psychological functioning. The current study proposes that TP and self-control can be considered as predictors of Psychological Distress (PD). 328 men and women from Buenos Aires, Argentina, completed the Zimbardo Time Perspective Inventory, which assesses five dimensions of TP, the Self-Control Scale and the Psychological Distress scale. Hierarchical regression analysis showed that past negative, past positive and self-control explain 31% of variance in PD. Afterwards, a path analysis was conducted. Results showed that future, past negative, and present orientations have a direct effect on self-control. Also, PD is predicted by past negative, past positive and self-control. Finally, future, past negative, and present orientations have an indirect effect on PD trough self-control. These findings support the idea that TP is related to self-control and suggest that both, TP and self-control, can be predictors of PD. These results add to the theoretical concept of TP and shed new light on the value of considering self-control as a mediator variable between TP and someone's psychological state. Theoretical and practical implications of these findings are discussed.

The importance of studying the role of filled pauses in the construction of a coherent representation of spontaneous spoken discourse Cossavella, Francisco; Yomha Cevasco, Jazmin Filled pauses indicate that the speaker is searching for information or deciding how to continue. In this review, we summarize recent research on the production and comprehension of these pauses. We also present studies that have focused on the establishment of meaningful connections during discourse comprehension, and preliminary research on the role of filled pauses in the establishment of these connections. Overall, these studies suggest that filled pauses promote that listeners focus attention on upcoming speech, and that research on this topic has not tended to focus on the comprehension of connected discourse. Studies on the comprehension of connected discourse suggest that the establishment of causal connections plays a central role, and that the presence of filled pauses does not create a break with information that is relevant to their establishment. Finally, this review presents an integrated view of research on the processing of disfluencies and discourse connections.

Nuclear-lipid-droplet proteome: carboxylesterase as a nuclear lipase involved in lipid-droplet homeostasis Lagrutta, Lucía Carolina; Layerenza, Juan Pablo; Bronsoms, Silvia; Trejo, Sebastian Alejandro; Ves Losada, Ana Nuclear-lipid droplets (nLD)—a dynamic cellular organelle that stores neutral lipids, within the nucleus of eukaryotic cells—consists of a hydrophobic triacylglycerol –cholesterol-ester core enriched in oleic acid (OA) surrounded by a monolayer of polar lipids, cholesterol, and proteins. nLD are probably involved in nuclear-lipid homeostasis serving as an endonuclear buffer that provides or incorporates lipids and proteins participating in signaling pathways, as transcription factors and enzymes of lipid metabolism and nuclear processes. In the present work, we analyzed the nLD proteome and hypothesized that nLD-monolayer proteins could be involved in processes similar as the ones occurring in the cLD including lipid metabolism and other cellular functions. We evaluated the rat-liver–nLD proteome under physiological and nonpathological conditions by GeLC-MS2. Since isolated nLD are highly diluted, a protein-concentrating isolation protocol was designed. Thirty-five proteins were identified within the functional categories: cytoskeleton and structural, transcription and translation, histones, protein-folding and posttranslational modification, cellular proliferation and/or cancer, lipid metabolism, and transport. Purified nLD contained an enzyme from the lipid-metabolism pathway, carboxylesterase 1d (Ces1d/Ces3). Nuclear Carboxylesterase localization was confirmed by Western blotting. By in-silico analyses rat Ces1d/Ces3 secondary and tertiary structure predicted would be equivalent to human CES1. These results—the first nLD proteome—demonstrate that a tandem-GeLC-MS2-analysis protocol facilitates studies like these on rat-liver nuclei. A diversity of cellular-protein function was identified indicating the direct or indirect nLD participation and involving Ces1d/Ces3 in the LD-population homeostasis.

El aborto como campo de batalla Scherbovsky, Natacha La lucha por el aborto legal seguro y gratuito en la Argentina formó parte de una batalla histórica que atravesó política y socialmente más de treinta años. En este texto comentaremos dos hitos que inscribieron la lucha en jornadas inolvidables. Aquellas que se llevaron a cabo en junio y agosto del 2018 durante el gobierno del presidente Mauricio Macri y la del 10 y 30 de diciembre del 2020 durante el gobierno del presidente Alberto Fernández. Los conflictos, tensiones, disputas y lo que queda abierto luego de la aprobación finalmente de la Ley de Interrupción legal del embarazo.

El teatro judío como corriente modernizadora: la escena ídish y su influencia en el campo teatral de Buenos Aires Ansaldo, Paula Nora En el período de entre guerras, y especialmente a partir de 1930, Buenos Aires se posicionó como un centro teatral judío de importancia internacional gracias su gran población de judíos ídish-parlantes y al desarrollo de un circuito teatral en ídish. Buenos Aires se convirtió así en un destino privilegiado en las giras de los artistas y compañías itinerantes del teatro judío y en un polo teatral que atraía a una gran cantidad de actores, actrices y directores judíos que buscaban radicarse en el continente americano. ¿Cuáles fueron las concepciones teatrales y estéticas que llegaron a la Argentina a través de los artistas judíos que arribaron en el país? ¿De qué manera y en qué medida los repertorios y las poéticas actorales y de puesta en escena que se desarrollaron en los escenarios judíos influenciaron al teatro nacional? En este trabajo buscaremos responder a estas preguntas a partir de la hipótesis de que el teatro judío funcionó como una corriente modernizadora que influyó notablemente en el campo teatral de Buenos Aires, ya que debido a su carácter itinerante y por vía del ídish llegaron a la Argentina concepciones teatrales, repertorios, poéticas de actuación y estéticas modernas que aún no se habían desarrollado en los escenarios porteños y que tuvieron un gran impacto sobre las compañías y artistas locales.; During the interwar period, Buenos Aires established itself as a Jewish city of international cultural relevance. In the 1930s in particular, a rich Yiddish theatre circuit was developed and supported by the city’s large population of Yiddish-speaking Jews. Buenos Aires soon became a privileged destination in the tours of itinerant Jewish artists and a theatrical center that attracted a large number of Jewish actors and directors seeking to settle on the American continent. This article focuses on the aesthetic conceptions that Jewish artists brought to Argentina and argues that Yiddish theatre served as a modernizing force that deeply influenced the larger theatre scene of Buenos Aires. With its itinerant nature and genuinely international language, Yiddish theatre brought modern ideas, avant-garde aesthetics, and new repertoires.

Impacto de la conquista hispánica en el humedal del Paraná inferior (Argentina): una perspectiva histórica y genética mitocondrial; Impact of the hispanic conquest at the lower Parana wetland (Argentina): an historical and mitochondrial genetic perspec-tive; Impacto da conquista hispânica na humedal do Paraná inferior (Argentina): uma perspectiva histórica e genética mitocondrial Cardozo, Dario Gonzalo; Dejean, Cristina Beatriz; Russo, Maria Gabriela; Mazza, Bárbara Pamela; Loponte, Daniel Marcelo; Acosta, Alejandro Alberto; Feuillet, María Rosario; Cornero, Silvia Elena; Kozameh, Livia Febes; Tapia, Alicia Haydeé Para indagar sobre el impacto genético que habría generado la conquista hispánica en los grupos nativos asentados en el Paraná Medio e Inferior se analizaron muestras de individuos pre y posthispánicos de la región. Se identificaron los haplogrupos de ADN mitocondrial empleando Polimorfismos de Longitud de Fragmentos de Restricción (RFLP). Los datos obtenidos se compararon con los de otros sitios arqueológicos pre y posthispánicos y con muestras contemporáneas. Se observó mayor prevalencia del haplogrupo nativo B en las muestras posthispánicas, aunque sin diferenciación significativa con el grupo prehispánico de la región del Paraná Medio e Inferior. Ambos grupos presentan frecuencias de haplogrupos similares a muestras modernas provenientes del Gran Chaco y la provincia de Córdoba. Esto se corresponde con datos arqueológicos y de fuentes documentales de la reducción de Santiago del Baradero (provincia de Buenos Aires), con la prohibición de la salida de mujeres de la reducción y la escasez de individuos foráneos.; In order to investigate the genetic impact that the Hispanic conquest would have generated in the native groups settled in the Middle and Lower Paraná, samples of pre and post-Hispanic individuals of this region were analyzed. Mitochondrial DNA haplogroups were identified using restriction fragment length polymorphism (RFLP). The data were compared with those from other pre- and post-Hispanic archaeological sites and with contemporary samples. We observed a higher prevalence of native B haplogroup, in the post-Hispanic samples, without significant difference with the pre-hispanic group of the lower and middle Parana region. Both groups present similar haplogroup frequencies of those found in samples from Gran Chaco and the Córdoba province. This corresponds with archaeological data and the documentary sources about the Santiago del Baradero reduction (Buenos Aires province), with the prohibition of the departure of women from the reduction and the shortage of foreigners.; Para investigar o impacto genético que a conquista hispânica teria gerado nos grupos nativos assentados no Médio e Baixo Paraná, amostras de indivíduos pré e pós-hispânicos da região foram analisadas. Os haplogrupos de DNA mitocondrial foram identificados usando polimorfismos de comprimento de fragmento de restrição (RFLP). Os dados obtidos foram comparados com os de outros sítios arqueológicos pré e pós-hispânicos e com amostras contem-porâneas. Uma maior prevalência do haplogrupo B nativo foi observada nas amostras pós-hispânicas, embora sem diferenciação significativa em relação ao grupo pré-hispânico da região do Médio e Baixo Paraná. Ambos grupos apresentam freqüências semelhantes de haplogrupos que aquelas amostras modernas do Gran Chaco e da província de Córdoba. Isto se correlaciona con os dados arqueológicos y de fontes documentais sobre a redução em Santiago del Baradero (província de Buenos Aires), com a proibição de mulheres para sair da redução e a escassez de indivíduos estrangeiros.

Dialéctica de lo existente Galafassi, Guido Pascual Uno de los tópicos fundantes y vertebradores de toda la discusión y argumentación filosófica y sociológica radica en la discriminación entre totalidad y particularidad y de la identidad o no entre sujeto y objeto. Y para el análisis de la conflictividad este considerando es crucial para adentrarse en el debate existente y plantear una alternativa que pueda rebasarlo. La dialéctica es el instrumento que nos permite salvar la vulgar dicotomía en la que ha caído mayoritariamente este debate. ¿El mundo funciona articulado en un entretejido de relaciones o por el contrario cada ente tiene una autonomía que lo dota de libertad plena en su accionar? Explícita o implícita, y a veces oculta, esta es una pregunta guía que orienta todo el pensamiento sobre la existencia. Concatenadamente y consecuentemente, el interrogarse sobre los procesos de interacción entre sujeto y objeto y de ambos con la particularidad y la totalidad constituye la continuidad lógica que necesariamente se desprende de lo primero. Esta secuenciación ya implicaría un posible derrotero de respuesta a las preguntas, por cuanto, y dependiendo del marco conceptual, es factible intercambiar el orden de los interrogantes o privilegiar una y despreciar la otra, en una clara toma de posición argumentativa. La primacía de la estructura en tanto sistema que más permisiva o coactivamente incide sobre las decisiones del sujeto ha guiado y sigue guiando el debate sociológico a lo largo de los últimos dos siglos. Por el contrario, la primacía del sujeto y sus procesos de identidad y subjetividad, despreciando toda restricción estructural ha sido a su vez la respuesta a la mirada estructural. Múltiples variantes que intentan amalgamar estas posiciones extremas han visto la luz, replanteándose cada uno de ellas como la nueva solución al viejo problema y la culminación así del debate...