The Calern Asteroid Polarisation Survey: An updated catalogue of asteroid polarimetric data Bendjoya, P.; Cellino, A.; Rivet, J. P.; Devogèle, M.; Bagnulo, S.; Abe, L.; Vernet, D.; Gil Hutton, Ricardo Alfredo; Veneziani, A. Context. The Calern Asteroid Polarimetric Survey (CAPS), a collaboration between the INAF Astrophysical Observatory of Torino (Italy) and the Observatoire de la Côte d'Azur (Nice, France), has produced new asteroid polarimetric data for a number of years, and is one of the most important, currently active projects of asteroid polarimetry. Aims. The purpose of this paper is to make public the CAPS data collected thus far, to explain the adopted techniques of data reduction and computation of phase-polarisation curves for the measured objects, and explain, by means of some examples, the importance of the CAPS database. Methods. The pipeline of data reduction has been recently updated and made as automatic as possible, using numerical algorithms developed specifically for the purposes of CAPS. The derivation of phase-polarisation curves for the observed asteroids is done using established criteria and algorithms that have recently been slightly improved, and are also summarised in this paper. Results. The CAPS catalogue is a steadily growing source of information which can be exploited for different purposes, including, but not limited to, an updated calibration of the relations existing between different polarimetric parameters and the geometric albedo of the objects, and a study of classes of objects that can be most easily identified by means of their polarimetric properties. These subjects will be more specifically discussed in separate papers. Conclusions. Asteroid polarimetry data nicely complement the results of other more commonly used techniques, including visible and IR photometry and spectroscopy. CAPS contains a lot of much-desired information about physical properties, which can hardly be inferred by means of other techniques.

Hypovitaminosis D in patients with type 2 diabetes: risk factors and association with glycemic control and established microvascular complications; Hipovitaminosis D en pacientes con diabetes tipo 2: factores de riesgo y asociación con control glucémico y complicaciones microvasculares establecidas; Hipovitaminose D em pacientes com diabetes tipo 2: fatores de risco e associação com controle glicêmico e complicações microvasculares estabelecidas Ramírez Stieben, Luis Agustín; Dobry, Raquel; Anca, Lilian; González, Adrián; López, María Isabel; Bayo, Salvador; Sánchez, Ariel; Brance, María Lorena Introduction: Several studies reported than vitamin D deficiency increases the risk of macrovascular and microvascular disease in patients with type 2 diabetes (T2DM). We investigated the plasma levels of 25OHD in adult patients T2DM, risk factors for 25OHD deficiency and the relationship between 25OHD, glycemic control and chronic complications of T2DM. Methods: A cross-sectional study was carried out, in which 25OHD levels were evaluated in adult patients (over 18 years) with T2DM. Correlation analyses were performed to evaluate the interdependence of the 25OHD with other continuous variables. A receiver operating characteristic analysis was also performed to identify cutoff values for diagnosing vitamin D deficiency. Logistic regression was performed to identify the independent association between vitamin D deficiency and the variables associated with lower 25OHD. Results: 208 patients were analyzed. The mean age of the patients was 62 years. The 25OHD level was 19 ng/ml (IQR 13.28-24.43), 59.78% had vitamin D deficiency, and 10.33% had severe deficiency. Glycemia, HbA1c, and BMI were negatively correlated with 25OHD. Cutoff point for vitamin D deficiency was 33.39 kg/m2 for body mass index (BMI), 123 mg/dl for glycemia, and 6.65% for HbA1c. In multivariate logistic regression, BMI>33.39 kg/m2 , glycemia>123.5 mg/dl, and albuminuria presented higher odds of vitamin D deficiency. Major conclusion: Vitamin D deficiency was highly prevalent among patients with T2DM. Low levels were related to higher fasting plasma glucose, higher BMI, and diabetic nephropathy.; Introducción: Varios estudios reportaron que la deficiencia de vitamina D aumenta el riesgo de enfermedad macrovascular y microvascular en pacientes con diabetes tipo 2 (DM2). Investigamos los niveles de 25OHD en adultos con DM2, factores de riesgo de deficiencia de 25OHD y relación entre 25OHD, control glucémico y complicaciones crónicas de la DM2. Métodos: Se realizó un estudio transversal en el que se evaluaron los niveles de 25OHD en adultos (mayores de 18 años) con DM2. Se realizaron análisis de correlación para evaluar la interdependencia de la 25OHD con otras variables continuas. Se realizó un análisis de las características operativas del receptor para identificar valores de corte para diagnóstico de deficiencia de vitamina D. Se realizó una regresión logística para identificar asociación independiente entre deficiencia de 25OHD y variables asociadas con una menor 25OHD. Resultados: Se analizaron 208 pacientes. La edad media fue 62 años. El nivel de 25OHD fue 19 ng/ml (IQR 13.28-24.43), 59.78% tenía deficiencia de vitamina D y 10.33% tenía deficiencia severa. Glucemia, HbA1c y IMC correlacionaron negativamente con 25OHD. El punto de corte para deficiencia de vitamina D fue 33,39 kg/m2 para índice de masa corporal (IMC), 123 mg/dl para glucemia y 6,65% para HbA1c. En la regresión logística multivariada, IMC >33,39 kg/m2 , glucemia >123,5 mg/dl y albuminuria presentaron mayores probabilidades de deficiencia de vitamina D. Conclusión principal: La deficiencia de vitamina D fue altamente prevalente en los pacientes con DM2. Niveles bajos de 25OHD se relacionaron con mayor glucemia, mayor IMC y nefropatía diabética.; Introdução: Vários estudos relataram que a deficiência de vitamina D aumenta o risco de doença macrovascular e microvascular em pacientes com diabetes tipo 2 (DM2). Nós investigamos os níveis de 25OHD em adultos com DM2, fatores de risco para deficiência de 25OHD e a relação entre 25OHD, controle glicêmico e complicações crônicas do DM2. Métodos: Foi realizado um estudo transversal em que os níveis de 25OHD foram avaliados em adultos (maiores de 18 anos) com DM2. Análises de correlação foram realizadas para avaliar a interdependência de 25OHD como utrasvariáveis contínuas. Uma análise das características operatórias do receptor foi realizada para identificar valores de corte para o diagnóstico de deficiência de vitamina D. Uma regressão logística foi realizada para identificar uma associação independente entre a deficiência de 25OHD e variáveis associadas a uma menor 25OHD. Resultados: 208 pacientes foram analisados. A média de idade foi de 62 anos. O nível de 25OHD foi de 19 ng/ml (IQR 13,28-24,43), 59,78% eram deficientes em vitamina D e 10,33% eram severamente deficientes. Glicemia, HbA1c e IMC correlacionaram-se negativamente com 25OHD. O ponto de corte para deficiência de vitamina D foi de 33,39 kg/m2 para índice de massa corporal (IMC), 123 mg/dl para glicose no sangue e 6,65% para HbA1c. Na regressão logística multivariada, IMC> 33,39 kg/m2 , glicemia >123,5 mg/dl e albuminúria apresentaram maiores probabilidades de deficiência de vitamina D. Conclusão principal: A deficiência de vitamina D foi altamente prevalente em pacientes com DM2. Níveis baixos de 25OHD foram associados a maior glicose no sangue, maior IMC e nefropatia diabética.

Agroecología en el Sudeste Bonaerense: Controversias del Sistema Participativo de Garantía (SPG); Agroecology in the Southeast of Buenos Aires: Controversies of Participatory Guarantee System Etcheverriborde, María Alejandra; Cendón, María Laura; Molpeceres, María Celeste; Rodriguez, Julieta Alejandra; Zulaica, Maria Laura; Rouvier, Marisa El presente artículo tiene como objetivo cartografiar controversias en la construcción del SPG del Sudeste Bonaerense en torno a la agroecología y se organiza en los siguientes ejes temáticos: las dimensiones de la agroecología y la calidad de los alimentos agroecológicos. La cartografía de controversias resulta una herramienta de gran utilidad para el rastreo y seguimiento de agentes, humanos y no-humanos, visiones y debates que revelan las particularidades de una controversia; para ello, se empleó una estrategia metodológica de tipo cualitativa, la etnografía multisituada, apoyada en observación participante, notas de campo y datos secundarios. De los conflictos analizados en torno a qué se entiende por agroecología, qué alimentos agroecológicos valorizar y qué garantías de calidad brindará el SPG, destacan cuatro grupos de visiones o posiciones: (1) los que abogan por alimentos sin agroquímicos; (2) los “permisivos” de la transición a la agroecología; (3) los que vinculan la agroecología con la soberanía alimentaria, y (4) los que se oponen o actúan como limitantes al desarrollo de la agroecología.; This article aims to map controversies in the construction of the PGS of Southeast Buenos Aires around agroecology and is organized in the following thematic axes: the dimensions of agroecology and the quality of agroecological foods. Controversy mapping is very useful for tracking and monitoring agents, human and non-human, visions, and debates that reveal the particularities of a dispute. A qualitative methodological strategy was used, multi-situated ethnography, supported by participant observation, field notes and secondary data. Of the conflicts analyzed around what is meant by agroecology, what agroecological foods to value, and what quality guarantees the SPG will provide, four groups of visions or positions stand out: (1) those who advocate food without agrochemicals; (2) the “permissive” of the transition to agroecology; (3) those that link agroecology with food sovereignty, and (4) those that oppose or limit the development of agroecology.

¿Qué nos cuenta el herbario BA sobre las plantas de Malvinas? Gutierrez, Diego Germán; Stampacchio, Monica Liliana; Tancoff, Soledad El Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” (MACN-CONICET) (PORTADA) está ubicado en el centro geográfico de la ciudad de Buenos Aires. Ha sido testigo y partícipe de la historia de las ciencias naturales de nuestro país desde hace más de dos siglos. En su Área de Botánica se encuentra el herbario BA (acrónimo internacional), en el cual se conservan especímenes de plantas, algas y hongos recolectados desde principios del siglo XIX hasta nuestros días. La principal colección está formada por muestras herborizadas (secas y prensadas, sobre cartulinas y en carpetas) de unas 240.000 plantas vasculares, es decir, aquellas que poseen un tejido especializado para conducir la savia (ej. licofitas, helechos, gimnospermas y plantas con flores). Una colección destacada es la de las Islas Malvinas, generada por las recolecciones del botánico y explorador sueco Carl Skottsberg (1880-1963) y las del último “naturalista viajero” del MACN, el argentino Mauricio Rumboll (1940-2021).

"Matafísicas": El pez de oro de Gamaliel Churata y la teoría de la secularización; "Matafísicas": El pez de oro of Gamaliel Churata and the Theory of Secularization Di Benedetto, Matías Nicolás Este artículo busca el relevamiento de la visión animista que identifica materia y espíritu en tanto rechazo de la trascendencia entendida como negación de lo corpóreo, tal y como aparece a menudo en los presupuestos filosóficos del cristianismo. Si para Churata dicha unidad está dada a partir de una cadena vital que entiende la existencia como un estado de permanencia, esta teología material define al sujeto a partir de la idea andina de hallpakamaska, el soplo animador de los dioses, y se presenta como una instancia de redefinición de la retórica emancipatoria de la modernidad a partir de aspecto propios de la cosmología andina, tales como la complementariedad y la inclusión en oposición directa a la dicotomía y las exclusiones propias de la cultura occidental, por ejemplo, entre lo sagrado y lo profano, distinción central para la teoría de la secularización. En este sentido, podrá observarse la importancia que concentra la figura del layka para la organización del libro–rito puesto que representa la textualización de las prácticas y saberes andinos entendidos como instancias de reapropiación del imaginario católico.; This article seeks to survey the animist vision that identifies matter and spirit as a rejection of transcendence, understood as a negation of the corporeal, as it often appears in the philosophical assumptions of Christianity. If for Churata said unity is given from a vital chain that understands existence as a state of permanence, this material theology defines the subject from the Andean idea of hallpakamaska, the animating breath of the gods, and is presented as a instance of redefining the emancipatory rhetoric of modernity based on aspects typical of Andean cosmology, such as complementarity and inclusion in direct opposition to the dichotomy and exclusions typical of Western culture, for example, between the sacred and the profane, central distinction for the theory of secularization. In this sense, it will be possible to observe the importance that the figure of the layka concentrates for the organization of the book-rite since it represents the textualization of Andean practices and knowledge understood as instances of reappropriation of the Catholic imaginary

Termite sensitivity to temperature affects global wood decay rates Zanne, Amy E.; Flores Moreno, Habacuc; Powell, Jeff R.; Cornwell, William K.; Dalling, James W.; Austin, Amy Theresa; Classen, Aimée T.; Eggleton, Paul; Okada, Kei Ichi; Parr, Catherine; Carol Adair, E.; Adu Bredu, Stephen; Alam, Md Azharul; Alvarez Garzón, Carolina; Apgaua, Deborah; Aragón, Myriam Roxana; Ardon, Marcelo; Arndt, Stefan K.; Ashton, Louise A.; Barber, Nicholas A.; Beauchêne, Jacques; Berg, Matty P.; Beringer, Jason; Boer, Matthias M.; Bonet, José Antonio; Bunney, Katherine; Burkhardt, Tynan J.; Carvalho, Dulcinéia; Castillo Figueroa, Dennis; Cernusak, Lucas A. Deadwood is a large global carbon store with its store size partially determined by biotic decay. Microbial wood decay rates are known to respond to changing temperature and precipitation. Termites are also important decomposers in the tropics but are less well studied. An understanding of their climate sensitivities is needed to estimate climate change effects on wood carbon pools. Using data from 133 sites spanning six continents, we found that termite wood discovery and consumption were highly sensitive to temperature (with decay increasing >6.8 times per 10°C increase in temperature)—even more so than microbes. Termite decay effects were greatest in tropical seasonal forests, tropical savannas, and subtropical deserts. With tropicalization (i.e., warming shifts to tropical climates), termite wood decay will likely increase as termites access more of Earth’s surface.

Debates abiertos y pendientes en torno a la previsión social argentina Torres, Maria Sol El sistema previsional argentino está sistema diseñado y reglamentado para ser principalmente contributivo. Así, el acceso a la cobertura se encuentra condicionado a la acreditación de una historia de contribuciones mínima (de 30 años) además de cumplir con la edad jubilatoria. Como resultado, tiende a excluir sistemáticamente a las personas cuyas trayectorias laborales hayan estado afectadas por el empleo no registrado (ya sea asalariado o independiente), el desempleo de larga duración o recurrente y/o la dedicación al trabajo no remunerado (que afecta en mayor medida a las mujeres).Otra cuestión que hace a las características estructurales del sistema previsional argentino es la estratificación de los beneficios. Ello no sólo implica una segmentación por la que las prestaciones no contributivas tienden a ser de menor calidad, sino también una distribución de prestaciones contributivas de diferente calidad (es decir, con diferente capacidad de consumo). Ello se debe a que los haberes iniciales se estipulan con criterios de sustitución individual de ingresos laborales y tasas de reemplazo que dependen de la cantidad de años cotizados. Como resultado de este diseño institucional, el gasto previsional tiende a mostrar una concentración pro rico, es decir, que se invierte relativamente más en los sectores económicamente más favorecidos a lo largo de sus vidas. El financiamiento del sistema previsional es, supuestamente, contributivo. Así, las jubilaciones y pensiones pagadas en un momento se financiarían con los aportes de trabajadores y las contribuciones patronales de quienes se encuentran en actividad. En este esquema, existen diferentes factores que pueden deteriorar el financiamiento. Por un lado, la evolución del mercado laboral: el deterioro del empleo, y/o de su nivel de formalidad, así como el deterioro de la distribución primaria en detrimento de los ingresos laborales. El artículo identifica y analiza las políticas previsionales implementadas durante el SXXI en torno a estas tres dimensiones del sistema previsional, acceso, distribución y sostenibilidad.

Estudio exploratorio y descriptivo de la composición mineral del agua de bebida en producciones porcinas de las localidades de Anguil y Uriburu, La Pampa, Argentina; Exploratory and descriptive study of the mineral composition of drinking water in swine productions in Anguil and Uriburu, La Pampa, Argentina Murcia, Vanina Nerea; Beneitez, Adrián Horacio; Cora Jofré, Florencia; Kloster, Nanci Soledad; Perez, Maria Micaela; Savio, Marianela El agua es un nutriente esencial para los animales. La contaminación química del agua es una preocupación para los productores porcinos, porque los contaminantes minerales disminuyen la palatabilidad, reduciendo el consumo de alimento, disminuye la eficiencia de conversión, aumenta el tiempo para llegar al peso de faena. En la provincia de La Pampa, no existen estudios que determinen la concentración mineral del agua en campos destinados a la producción porcina. El objetivo de este trabajo fue realizar un estudio exploratorio y descriptivo de la composición mineral del agua de bebida de 16 granjas porcinas con producciones al aire libre de las localidades de Anguil y Uriburu de la provincia de La Pampa. Se calcularon las medias de las variables químicas. Se analizó la dispersión de los datos en rangos de salinidad, sólo el 6,25% de los campos contienen aguas seguras para el consumo porcino, el 37,5% corresponden a aguas satisfactorias, el 18,75% tienen aguas que podrían consumirse evitando altos niveles y el 37,5% de los campos muestreados tienen aguas con niveles de superiores a 7000 ppm STD siendo no recomendables para consumo animal. Con respecto a los iones el F se encontró en altas concentraciones fue 6,56 ± 1,47 ppm. Se recomienda mezclar las aguas de mala calidad con aguas de mejor calidad para disminuir los parámetros no recomendados. Los valores encontrados son de utilidad para evaluar nuevos avances y ampliar el estudio, incorporando más localidades de estudio y correlacionando los datos encontrados con observaciones a campo a lo largo de un periodo de tiempo. A su vez, sería interesante plantear un programa de monitoreo de agua subterránea de los mismos pozos y extenderlo a acuíferos de la zona.; Water is an essential nutrient for animals. Chemical contamination of water is a concern for pig producers, because mineral contaminants decrease palatability, reducing feed intake, decrease conversion efficiency, increase time to market weight. In the province of La Pampa, there are no studies which determine the mineral concentration of water in fields destined for pig production. The aim of this study was to carry out an exploratory study of the mineral composition of drinking water from 16 pig farms with outdoor production in the towns of Anguil and Uriburu in the province of La Pampa. The means of the chemical variables were assessed. The dispersion of the data in salinity ranges was analyzed, only 6.25% of the fields contain safe water for pig consumption, 37.5% correspond to satisfactory water, 18.75% have water that could be consumed by promoting high levels and 37.5% of the sampled fields have water with levels higher than 7000 ppm STD, being not recommended for animal consumption. About the ions, F found in high concentrations was 6.56 ± 1.47 ppm. It is recommended to mix poor quality water with better quality water to reduce non-recommended parameters. The values found are useful for evaluating new developments and expanding the study, incorporating more locations of study, and correlating the data found with field observations over a period of time. Also, it would be interesting to propose a groundwater monitoring program for the same wells and extend it to aquifers in the area.

Factors contributing to rural extension agents’ support for a transfer of technology (ToT) approach: a multiple linear regression analysis Landini, Fernando Pablo; Conti, Santiago Purpose: This article aims at identifying the individual factors and socio-demographic variables contributing to extension agents’ support for a ToT extension approach. Design/Methodology/Approach: A multiple linear regression analysis was conducted using samples of extension agents from Argentina, Brazil, Chile, Mexico and Nigeria. Findings: The main factors explaining the support to a ToT extension approach are: the tendency to blame farmers, understanding extension as a participatory process of dialogue and inter-institutional coordination, prioritizing the modernization of farmers’ production, and supporting conventional modern agriculture. The main factors reducing the support for a ToT approach are having a self-critical attitude, prioritizing the creation and strengthening of farmer organizations, having a university degree, and being an experienced extension agent. Practical Implications: The results are useful for institutions interested in changing the profile of their extension personnel and in moving away from a ToT extension approach. Theoretical Implications: Extension agents supporting a ToT approach assume that they know what is best for farmers without really acknowledging them as experienced individuals with self-determination and rationale of their own. The development of a self-critical attitude, resulting from field experience and reflection on practice seems to play a key role in questioning the assumptions of the ToT extension approach. Originality/Value: This is the first study to analyze the factors contributing to extension agents’ support for a ToT approach conducted using a multiple linear regression.

The effects of CO2 level and temperature on embryos and free embryos of the Patagonian pejerrey Odontesthes hatcheri (Actinopterygii, Atherinopsidae) Crichigno, Sonia Alejandra; Cussac, Victor Enrique Climate Change includes an increase of both the concentration of atmospheric CO2 and of global temperature. Embryos (= eggs) of Odontesthes hatcheri were collected in spring–summer from the littoral of Lake Morenito (Andes of Argentina). Embryos and free embryos were exposed to different temperatures (within a currently natural thermal range) and CO2 levels (obtained by bubbling lake water with gaseous CO2). High temperature and high CO2 led to low embryonic survival. Embryonic abnormalities were observed. Incidence of colorless blood cells and delayed dorsal pigmentation increased significantly at high CO2 level. Free embryo survival decreased with time, being particularly low at high CO2 level. Free embryo body shape also signaled the effects of high CO2. The combined effect of temperature and CO2 was additive. As temperature and atmospheric pCO2 increasing continues, the best survival at hatching observed in our experiments (50–60%, pH 7.5, 14 °C) will deteriorate (< 20% at 18 °C and pH 7.0). These Climate Change-related results and the fact that the species is already threatened by translocated species suggest a fragile situation. Spatial variation of temperature and pCO2 led us to reconsider the suitability of shallow littoral vegetated areas of the lakes as anti-predatory refuges for fish early life periods.

CB1 Cannabinoid Receptor is a Target for Neuroprotection in Light Induced Retinal Degeneration Soliño, Manuel; Larráyoz, Ignacio M.; Lopez, Ester Maria; Rey Funes, Manuel; Bareiro, Nidia Mariana; Loidl, Cesar Fabian; Girardi, Elena Silvia; Caltana, Laura Romina; Brusco, Herminia Alicia; Martinez, Alfredo; López, Juan José In the last few years, an increasing interest in the neuroprotective effect of cannabinoidshas taken place. The aim of the present work was to study the effects of modulatingcannabinoid receptor 1 (CB1) in the context of light induced retinal degeneration (LIRD),using an animal model that resembles many characteristics of human age-related maculardegeneration (AMD) and other degenerative diseases of the outer retina. Sprague Dawleyrats (n = 28) were intravitreally injected in the right eye with either a CB1 agonist (ACEA), oran antagonist (AM251). Contralateral eyes were injected with respective vehicles ascontrols. Then, rats were subjected to continuous illumination (12,000 lux) for 24 h.Retinas from 28 animals were processed by GFAP-immunohistochemistry (IHC),TUNEL technique, Western blotting (WB), or qRT-PCR. ACEA-treated retinas showeda significantly lower number of apoptotic nuclei in the outer nuclear layer (ONL), lower levelsof activated Caspase-3 by WB, and lower levels of glial reactivity by both GFAP-IHC andWB. qRT-PCR revealed that ACEA significantly decreased the expression of Bcl-2 andCYP1A1. Conversely, AM251-treated retinas showed a higher number of apoptotic nucleiin the ONL, higher levels of activated Caspase-3 by WB, and higher levels of glial reactivityas determined by GFAP-IHC and WB. AM251 increased the expression of Bcl-2, Bad,Bax, Aryl hydrocarbon Receptor (AhR), GFAP, and TNFα. In summary, the stimulation ofthe CB1 receptor, previous to the start of the pathogenic process, improved the survival ofphotoreceptors exposed to LIRD. The modulation of CB1 activity may be used as aneuroprotective strategy in retinal degeneration and deserves further studies

An in silico analysis revealed a novel evolutionary lineage of putative mitoviruses Jacquat, Andrés Gustavo; Ulla, Sofía Belén; Debat, Humberto Julio; Muñoz Adalia, Emigdio Jordán; Theumer, Martín Gustavo; Garcia Pedrajas, Maria Dolores; Dambolena, José Sebastián Mitoviruses (family Mitoviridae) are small capsid-less RNA viruses that replicate in the mitochondria of fungi and plants. However, to date, the only authentic animal mitovirus infecting an insect was identified as Lutzomyia longipalpis mitovirus 1 (LulMV1). Public databases of transcriptomic studies from several animals may be a good source for identifying the often missed mitoviruses. Consequently, a search of mitovirus-like transcripts at the NCBI transcriptome shotgun assembly (TSA) library, and a search for the mitoviruses previously recorded at the NCBI non-redundant (nr) protein sequences library, were performed in order to identify new mitovirus-like sequences associated with animals. In total, 10 new putative mitoviruses were identified in the TSA database and 8 putative mitoviruses in the nr protein database. To our knowledge, these results represent the first evidence of putative mitoviruses associated with poriferan, cnidarians, echinoderms, crustaceans, myriapods and arachnids. According to different phylogenetic inferences using the maximum likelihood method, these 18 putative mitoviruses form a robust monophyletic lineage with LulMV1, the only known animal-infecting mitovirus. These findings based on in silico procedures provide strong evidence for the existence of a clade of putative mitoviruses associated with animals, which has been provisionally named ‘kvinmitovirus’.

Critical insights from alloys and composites of Ni-based electrocatalysts for HER on NaCl electrolyte Ysea, Nadia Belén; Benavente Llorente, Victoria; Loiácono, Antonella; Lagucik Marquez, Lucrecia; Diaz, Liliana; Lacconi, Gabriela Ines; Franceschini, Esteban Andrés It is critical to minimize the cost of materials and inputs used in hydrogen production and to create solutions for large-scale generation to reduce the cost of hydrogen produced. Seawater is a natural low-cost electrolyte with high Na+ and Cl- concentrations, among other soluble salts. Chloride ions allow a highly corrosive media to the materials typically used as electrodes. In this work, we have prepared and tested different Ni-based catalysts for hydrogen evolution in NaCl-containing solutions. NiMo alloy, Ni(WO3), and Ni(Nb2O5) composites are compared and studied from a critical point of view to find a viable solution for catalysis in seawater electrolysis. The NiMo catalyst presents a higher dissolution rate in the NaCl medium than all synthesized catalysts. Furthermore, Ni-based composites showed improved durability due to a decrease in dissolution, and an increase in catalytic activity when using Nb2O5 as the dispersed phase. The Ni(Nb2O5) electrodes presented the higher catalytic activity in NaCl solution, even higher than that found in NiMo catalyst.

Characterization of autochthonous lactobacilli from goat dairy products with probiotic potential for metabolic diseases Márquez, María Antonela; Andrada, Lidia Estefania; Russo, Matias Irineo; Bolondi, María Luján; Fabersani Marrades, Mario Emanuel; Medina, Roxana Beatriz; Gauffin Cano, María Paola The present study aimed to design functional fermented goat milk with probiotic potential for metabolic diseases. Thereby, autochthonous lactobacilli from goat dairy products that target improving the inflammatory, lipid, and glycemic profile were characterized. We designed fermented goat milk using Lactobacillus delbrueckii subsp. indicus CRL1447 as starter strain, supplemented with different probiotic consortia formed by Limosilactobacillus fermentum CRL1446, Lactiplantibacillus paraplantarum CRL1449, and CRL1472 strains. These lactobacilli were selected for their positive effects on inhibition of α-glucosidase, bile salts hydrolase activity, cholesterol assimilation, and decreased triglyceride percentage in Caenorhabditis elegans. Furthermore, the lactobacilli oral administration to obese mice caused a significant decrease in body weight gain and ameliorated hyperglycemia and hyperlipemia. These results reveal the potential of this goat dairy product as a functional food to prevent obesity and related pathologies. Goat milk-derived products stand out for their marketing potential. Hence, fermented goat milk incorporating novel probiotics represents a group of food products with broad prospects by their promising nutritive and therapeutic properties for metabolic diseases. The goat dairy product designed in this study could be used in the prevention of dyslipidemia and hyperglycemia in obese people.

Segmentation and densification of the residential fragmentation process in the City of Córdoba, Argentina (1991-2010); Segmentación y densificación del proceso de fragmentación residencial en la Ciudad de Córdoba, Argentina (1991-2010) Lemma, Martín Hernán A partir del análisis de las estrategias de localización, segmentación y densificación de los barrios cerrados en la Ciudad de Córdoba entre 1991 y 2010, este artículo estudia la evolución del proceso de fragmentación urbana y residencial de la ciudad en el marco de la globalización. Durante estas dos décadas, se verifica el avance de los barrios cerrados como espacio para el hábitat de los grupos pertenecientes a la cúpula socioeconómica cordobesa. Más aún, se diversifica el mercado residencial y aumenta la densidad bruta de las cuatro tipologías de barrios cerrados construidas.; Based on the analysis of the strategies of location, segmentation and densifi-cation of gated communities in the City of Córdoba between 1991 and 2010, this article studies the evolution of the urban and residential fragmentation process of the city in the framework of globalization. During these two decades, it is possible to verify the advance of gated communities as a space for the habitat of Cordoba’s leading socioeconomic groups. Results show that the residential market has diversified and the gross density of the four types of gated communities has increased.

Penalized robust estimators in sparse logistic regression Bianco, Ana Maria; Boente Boente, Graciela Lina; Chebi, Gonzalo Sparse covariates are frequent in classification and regression problems where the task of variable selection is usually of interest. As it is well known, sparse statistical models correspond to situations where there are only a small number of nonzero parameters, and for that reason, they are much easier to interpret than dense ones. In this paper, we focus on the logistic regression model and our aim is to address robust and penalized estimation for the regression parameter. We introduce a family of penalized weighted M-type estimators for the logistic regression parameter that are stable against atypical data. We explore different penalization functions including the so-called Sign penalty. We provide a careful analysis of the estimators convergence rates as well as their variable selection capability and asymptotic distribution for fixed and random penalties. A robust cross-validation criterion is also proposed. Through a numerical study, we compare the finite sample performance of the classical and robust penalized estimators, under different contamination scenarios. The analysis of real datasets enables to investigate the stability of the penalized estimators in the presence of outliers.

La enfermería durante la emergencia sanitaria del COVID-19 en Mendoza: nuevas estrategias en los procesos de formación (2020-2021); Nursing during the COVID-19 health emergency in Mendoza: new strategies in training processes (2020-2021) Hirschegger, Ivana Las Medidas de Aislamiento Social, Preventivo y Obligatorio (ASPO) producto dela pandemia por el Covid-19, incidieron en los procesos de enseñanza de todos lasáreas y niveles educativos. En el sector de la salud esto representó un reto para lacontinuidad de formación de los estudiantes de enfermería en general y de los futurosegresados necesarios para cubrir las crecientes demandas sanitarias. El presentetrabajo persigue analizar cómo incidió la pandemia del Covid-19 en los procesos deformación en enfermería de la provincia de Mendoza, atendiendo al nuevo marconormativo a partir del cual se implementaron nuevas estrategias de aprendizaje, comoasí también a la experiencia real dentro de las instituciones educativas. Entre lasfuentes consultadas se encuentran periódicos locales, leyes, decretos, resoluciones ydocumentos oficiales. También se acudió a fuentes orales como fueron las entrevistasa informantes claves del área educativa.; The Social, Preventive and Mandatory Isolation Measures (ASPO) as a result of the Covid-19 pandemic, affected the teaching processes of all areas and educational levels. In the health sector, this represented a challenge for the continuity of training for nursing students in general and future graduates needed to cover the growing health demands. The present work aims to observe how the Covid-19 pandemic affected nursing training processes in the province of Mendoza, taking into account the new regulatory framework from which new learning strategies were implemented, as well as the real experience within of educational institutions. Among the sources consulted are local newspapers, laws, decrees, resolutions and official documents. Oral sources were also used, such as interviews with key informants in the educational area.

Teoría crítica desde la periferia: entrevista a Eduardo Grüner; Critical theory from the periphery: An interview with Eduardo Grüner Moreno, María Rita; Aguirre Aguirre, Carlos Sergio Manuel La siguiente entrevista a Eduardo Grüner se produjo en septiembre de 2019. La misma tuvo lugar en las instalaciones del Centro Científico Tecnológico Mendoza Conicet, Argentina, en ocasión del Curso de Alta Formación El arte como pensamiento crítico, dictado por el mismo Grüner y organizado por el Instituto de Ciencias Humanas, Sociales y Ambientales (Incihusa). En la entrevista se transitan diversos aspectos del pensamiento de Grüner y se procura exponer la singularidad de sus aportes a una teoría crítica gestada desde la periferia.; This interview with Eduardo Grüner took place in September 2019. It was held at the premises of the Technological Scientific Center of Mendoza Conicet, Argentina, on the occasion of the Expert Training Course “Art as Critical Thinking” (El arte como pensamiento crítico), given by Grüner himself and hosted by the Institute of Human, Social, and Environmental Sciences (Instituto de Ciencias Humanas, Sociales y Ambientales —Incihusa). In this interview, we cover several aspects of Grüner thinking and attempt to expose the singularity of his contributions to a critical theory grown at the periphery.

Etnografías multifacéticas: un análisis socio antropológico sobre pedagogías maternas en Córdoba (Argentina) Blázquez, Macarena En el presente artículo pretendo describir diferentes apuestas metodológicas implementadas para la realización de mi Tesis Doctoral en Ciencias Sociales (2019-2022). Para ello, presentaré cuatro trabajos etnográficos: 1. Una etnografía de documentos efectuada en la biblioteca de la Facultad de Ciencias Médicas (Universidad Nacional de Córdoba-Argentina) 2. Una etnografía virtual realizada en la carrera de “Puericultura y crianza” conocida como PRIMAL 3. Una etnografía “clásica” en un Hospital Neonatal de administración gubernamental de la localidad cordobesa y 4. Una etnografía de redes sociales, que indaga perfiles de Instagram de “mamis influencers”. El objetivo de explicar la trama de etnografías multifacéticas construida, y los diálogos que entre ellas puedo entablar, me posibilita reflexionar sobre la producción de pedagogías maternas (Darré, 2013) en la localidad de Córdoba (Argentina).; : In this article I intend to describe different methodological approaches implemented for the realization of my Doctoral Thesis in Social Sciences (2019-2022). For this purpose, I will present four ethnographic works: 1. A document ethnography carried out in the library of the Faculty of Medical Sciences (UNC) 2. A virtual ethnography carried out in the "Puericulture and parenting" career known as PRIMAL 3. A "classic" ethnography in a government-run Neonatal Hospital in the Cordoba locality and 4. An ethnography of social networks, investigating Instagram profiles of "mommy influencers". The objective of narrating multifaceted ethnographies, and the dialogues that I can establish between them, will enable me to reflect on the production of maternal pedagogies in the Cordoba locality.

Factors affecting local plant knowledge in isolated communities from Patagonian steppe: Metacommunity theory is revealed as a methodological approach Rosa Santoro, Flávia; Richeri, Marina; Ladio, Ana Haydee The Patagonian steppe is a refuge for several indigenous peoples who live in relatively isolated communities, depending heavily on natural resources for their activities, health, and food security. The local ecological knowledge is a reservoir that generates full wellbeing and for which it must be the object of protection and local development. In this study, we aimed to find which factors can influence local ecological knowledge from a metacommunity on the Patagonian steppe. We analyzed variation in knowledge about cultivated and gathered plants used as medicinal, edible, and firewood according to multiple factors widely discussed in the ethnobiological literature: age, gender, formal education, occupation, indigenous identity, contact with urban centers, use of biomedicine, hunting, and handcrafted textile production. We conducted semi-structured interviews with local experts, accessed by the snowball technique. We found that formal education is a key factor in the variation of local ecological knowledge among people. In addition, we found that knowledge varies between people who practice activities inside and outside the home, concentrating knowledge between cultivated and gathered plants, respectively. Our urbanization proxies did not point to an influence of this factor on local knowledge, but specialists living in a larger community with signs of internal urbanization processes had much less knowledge. Our results allowed us to visualize the importance of studying metacommunities as a whole, to verify complexities and intersections of overlapping factors. Studies in metacommunities open up a range of possibilities for ethnobiological analysis.