Dioses disidentes: Formas de una religiosidad cuir en la escritura, el arte visual y la performance en América Latina; Dissenting Gods: Forms of Queer Religiosity in writing, visual art and performance in Latin America Deuses dissidentes; Deuses dissidentes: Formas de religiosidade cuir em escrita, artes visuais e performance na América Latina Cabezas Baamonde, Laura María Soledad El presente artículo tiene como propósito analizar el cruce entre religiosidades y sexualidades disidentes en cuatro experiencias estéticas contemporáneas de América Latina. Nos interesa exponer cómo el discurso religioso puede funcionar como un modo de experimentación estética que cuestiona y subvierte, llamativamente, el orden establecido. Para dar cuenta de esto, trabajaremos desde la crítica literaria y de artes visuales con los siguientes materiales: la muestra de arte del artista colombiano Carlos Motta en Buenos Aires y la incorporación de la teología indecente de Marcella Althus-Reid, la obra de arte de Alejandro Tantanian, la escritura ensayística de la brasileña Tatiana Nascimento y el Museo Travesti del Perú de Giuseppe Campuzano en su rol de investigador y performer. Consideramos que el análisis de estas obras da como resultado la puesta en escena de una religiosidad cuir que, desde la escritura, el arte visual y la performance, diseña nuevos protocolos de lectura, transfeministas y decoloniales subvirtiendo el legado occidental, católico, colonial y moderno.; The purpose of this article is to analyze the intersection between religiosities and dissident sexualities in four contemporary aesthetic experiences in Latin America. We are interested in exposing how religious discourse can function as a mode of aesthetic experimentation that strikingly questions and subverts the established order. With this purpose, we work in the frame of literacy criticism and visual arts with the following materials: the Colombian artist Carlos Motta’s art exhibition in Buenos Aires and the incorporation of Marcella Althus-Reid’s indecent theology, Alejandro Tantanian’s artwork, the essay writing of the Brazilian Tatiana Nascimento and the Transvestite Museum of Peru by Giuseppe Campuzano (in his role as researcher and performer). We consider that these works stage a queer religiosity that, from writing, visual arts and performance, designs new transfeminist and decolonial protocols of reading, subverting the Western, Catholic, colonial and modern legacy.; O objetivo deste artigo é estudar a intersecção entre religiosidades e sexualidades dissidentes em quatro experiências estéticas contemporâneas na América Latina. Interessa-nos expor como o discurso religioso pode funcionar como um modo de experimentação estética que questiona e subverte de forma contundente a ordem estabelecida. Para dar conta disso, trabalharemos baseados na critica literária e nas artes visuais com os seguintes materiais: a exposição de arte do artista colombiano Carlos Motta em Buenos Aires, a obra de Alejandro Tantanian, a teologia indecente de Marcella Althus-Reid, o ensaio da brasileira Tatiana Nascimento e o Museu das Travesti do Peru por Giuseppe Campuzano no seu papel de pesquisador e performer. Consideramos como resultado que uma religiosidade queer é encenada e que, a partir da escrita, da arte visual e da performance, desenha novos protocolos de leitura transfeministas e decoloniais, subvertendo o legado ocidental, católico, colonial e moderno.

Encadenamientos productivos en la industria automotriz latinoamericana Pinazo, Germán Diego; Toledo, Pablo Este artículo presenta datos originales sobre encadenamientos productivos de la industria automotriz latinoamericana (América del Sur y México, más específicamente) basados en técnicas de insumo-producto para el año 2017 y, en algún caso, para 2007. Esos datos son utilizados para reflexionar sobre el problema de la integración productiva regional. El artículo finaliza con algunas reflexiones sobre los datos presentados y con comentarios sobre posibles nuevas líneas de investigación.; This paper presents original data on production chains of the Latin American automotive industry (South America and Mexico, more specifically) based on input-output techniques for the year 2017 and, in some cases, for 2007. These data are used to reflect on the problem of regional productive integration. The article ends with some reflections on the data presented and with comments on possible new lines of research.

Recent jaguar records confirm the conservation value of the Baritú-Tariquía corridor between Argentina and Bolivia Caruso, María Flavia; Perovic, Pablo Gastón; de Angelo, Carlos Daniel; Sillero-Zubiri, Claudio Effective transboundary corridors play a crucial role in jaguar Panthera onca conservation. Local residents reported jaguar sightings along the Baritú–Tariquía Biological Corridor, which prompted us to carry out this camera-trap survey. We surveyed an area of 1,243 km2 across the corridor to confirm jaguar presence. We used 50 single camera stations, with cameras placed c. 5 km apart. We placed the cameras along trails, streams and mountain ridges. We recorded jaguars at seven sites across the Corridor; at least three different individuals were identified. These records confirm the presence of the jaguar in the Baritú–Tariquía Biological Corridor between Argentina and Bolivia, a trans-frontier area of the Austral Yungas facing multiple threats but hosting one of the southernmost jaguar populations. Conservation efforts in border regions can promote collaboration and synergies between agencies and other conservation stakeholders, with important implications for wide-ranging predators such as jaguars and their habitats.

Anglers’ perception and attitudes towards angling related marine litter and a conservation program in Argentina García, Germán Oscar; Cabral, Victoria Noelia; Zumpano, Francisco; Gorostegui Valenti, Ariadna This study was designed to analyzes the perceptions and attitudes of recreational anglers towards the fishing litter issue and a conservation program seeking to promote the responsible management of waste derived from recreational fisheries at a coastal marine Reserve in Argentina. A total of 248 recreational anglers were surveyed between December 2019 and March 2020 at the Mar Chiquita Reserve. The survey included: (1) social and demographic characteristics of the anglers' profile; (2) anglers' perceptions about the Mar Chiquita Reserve and marine litter; and (3) anglers' perception on the conservation program. The average respondent included a coastal angler, who identifies with the male gender, is about 49 years old, and mainly lives in cities that are close to the fishing site. Most of the anglers think that the litter generated during their practice could lead to some threat to the ecosystem. More than 85% of the anglers responded that they returned home with the litter generated during a fishing day while 68% of them also said that they disposed of the litter in some type of bin located within the protected area. The conservation program is recognized by most of the anglers; however, not all of them use the bins installed in the territory by this program. From the different attributes in the conservation program that were assessed by the anglers, it can be observed that the frequency with which the bins are emptied not satisfy the users’ needs and affected the use of the bins. The results presented here are input to consider recreational anglers as key actors not only for the conservation program being studied, but also to design participative management opportunities in the coastal environment.

Huella hídrica como indicador del consumo de agua en la minería de litio en la Puna argentina; Water footprint as indicator of water consumption in lithium mining in the argentine Puna Arias Alvarado, Paula V.; Diaz Paz, Walter Fernando; Salas Barboza, Ariela Griselda Judith; Seghezzo, Lucas; Iribarnegaray, Martín Alejandro Frente a las proyecciones de crecimiento en la producción de litio surgen algunas preocupaciones en torno al desconocimiento general que existe respecto al consumo tanto de aguadulce como de salmuera por parte de dicha actividad. El objetivo de este trabajo fue estimar elconsumo de agua en la minería del litio en la Puna Argentina empleando el indicador de la huellahídrica. Para el abordaje metodológico, se analizó, revisó y procesó la información del Estudio deImpacto Ambiental y Social (EIAyS) del proyecto Olaroz, en la provincia de Jujuy. Se determinó queel volumen de agua empleado en el proyecto minero está representado en su totalidad por la huellahídrica azul, la cual se estima en 584,1 m3/tn de Li2CO3 producido. El 92% del valor global delindicador está asociado al consumo de salmuera, mientras que el 8% restante está implicado en el consumo de agua dulce. La huella hídrica podría servir como un indicador que contribuya, desde una perspectiva técnica, al análisis y discusión de los consumos de agua en la extracción y el procesamiento del litio, así como también su potencial impacto en el ciclo hidrológico local.; In view of the projected growth in lithium production, some concerns have been raised as the consumption of fresh water and brine associated with this mining activity is generally unknown. The objective of this article was to estimate the water consumption associated with lithium mining in the Argentine Puna using the Water Footprint Index. The methodological approach was based on the selection of the Olaroz project as a study case and the subsequent analysis, review and processing of information from its environmental and social impact study. The volume of water consumed by the mining project is represented in its entirety by the blue water footprint, estimated at 584.1 m3 /tnLi2CO3 produced. 92% of the total value of the indicator is associated with brine consumption, while the remaining 8% is due to fresh water consumption. The water footprint could serve as an indicator contributing, from a technical point of view, to the analysis and discussion of water consumption in the extraction and processing of lithium and its possible impact on the local hydrological cycle.

Computational design of a Massive Solar-Thermal Collector enhanced with Phase Change Materials Peralta, Ignacio; Fachinotti, Victor Daniel; Koenders, Eduardus A.B.; Caggiano, Antonio A cement-based device that can meet, partially or completely, the heating loads of a building by absorbing the solar radiation and converting it into thermal energy can be defined as a Massive Solar-Thermal Collector. The absorbing material for the incoming radiation is made of a cementitious composite, generally concrete, and flowing water inside tubes acts as a heat transfer medium. For an optimized performance, during periods of solar radiation, the device has to efficiently conduct the heat flow from the absorbing surface of the collector and transfer this heat energy to the water. Then, when the radiation is reduced or became null, the device should retain as much as possible the heat energy, reducing the heat that is escaping the collector and consequently the losses to the surrounding environment. In this work, by performing a parametric analysis, different absorbing materials are tested with the objective of finding the best configuration that maximizes the energy efficiency of the collector. Cementitious materials, in combination with Phase Change Materials with distinct melting (and solidification) temperatures, are selected as candidate absorbing materials. The weather variables of an entire year and for two different locations are considered to evaluate the behavior of these devices in opposite climates. After numerical simulations, in where an enthalpy-based finite element formulation is used to solve the physical problem, the obtained results allow to conclude that the inclusion of Phase Change Materials within the absorber material of the collectors, if it is done in a correct way, can improve the energy performance of these devices. In this study, 34 °C and 53 °C are chosen as the most appropriated melting temperatures, which conduct to considerable improvements in the achieved performances, and in both warm and cold climates.

Nest-sharing behavior of captive Broad-snouted caimans (Caiman latirostris): Cooperation or exploitation? Pierini, Sofía Evelyn; Imhof, Alba; Larriera, Alejandro; Piña, Carlos Ignacio; Simoncini, Melina Soledad Communal egg-laying is not frequently observed in crocodilians that exhibit nest attendance. However, it has been reported for both wild and captive Caiman latirostris. To understand the proximate causes of communal nesting, we aim to describe the nesting behavior of caimans during communal egg-laying in a captive population. Video cameras were placed at nests and the behavior of females was monitored throughout three incubation periods. We documented and analyzed social behavioral data. Nest-sharing behavior consisted of several females congregating and performing nest construction, nest vigilance and nest maintenance. It was observed in all nests previous to egg-laying. After the first laying, one female prevented others from approaching. The second egg-laying female negatively affected the previous clutch. Working together at the same nest would appear to be an exploitative rather than a cooperative activity, and communal nesting could be a competitive interaction, due to limited suitable nesting sites or overcrowding due to captivity.

De qué lado de la mecha te encontrás: Juventudes y política en el cine argentino contemporáneo Zgaib, Jacobo Iván Este artículo busca reflexionar en torno a dos películas recientes que aparecen como excepciones dentro de los modos dominantes de retratar a las juventudes y los procesos políticos y culturales de Argentina. Tanto Camila saldrá esta noche (2021) como Ciudad Universitaria (2022) pueden entenderse como exploraciones estéticas y narrativas que toman distancia de la neutralidad y la baja intensidad que caracterizó a los dramas juveniles del cine argentino desde fines de los años ‘90.

Describir objetos fotográficos: Reflexiones y recursos para su registro en bases de datos informáticas; Describing Photographic Objects:Thoughts and Resources for Their Recording in Computer Databases Lapenda, María Agustina; Aguilar, Clara; Tomasini, Clara Agustina Este artículo aborda problemáticas detectadas en el trabajo con archivos y colecciones fotográficas tanto públicas como privadas relativas a la catalogación, gestión y acceso a la información de objetos fotográficos, a su correcta descripción y a los esquemas de metadatos y vocabulario utilizados para registrarlos. En función de esto, y mediante un enfoque interdisciplinario (archivística, humanidades, conservación, informática), ofrecemos un conjunto de recursos y lineamientos orientados a facilitar la carga y el acceso a la información relativa a documentos fotográficos, contemplando sus múltiples dimensiones y especificidades. Se presenta, además, un detalle de los antecedentes locales e internacionales que guiaron la elaboración de dichas herramientas, y se especifican algunos fundamentos y definiciones técnicas sobre las posibilidades de las bases de datos computacionales. Por último, se busca mostrar la importancia de la reflexión crítica y situada en el desarrollo e implementación de herramientas informáticas en acervos fotográficos.; This article talks about difficulties detected when working with photographic archives and collections -both public and private- related to the processes of cataloging, managing, and accessing information of photographic objects, as well as their description through metadata schemes and vocabulary. Based on the latter, and via an interdisciplinary approach (archival studies, humanities, conservation, computer science), we offer a set of resources and guidelines that aim to facilitate both registering and accessing information related to photographic documents, considering their multiple dimensions and specificities. A detail of the local and international previous efforts and works that guided the elaboration of these tools is also presented. Moreover, fundamentals and technical definitions of the possibilities of computational databases are specified. Finally, the article seeks to show the importance of critical and contextualized thinking in the development and implementation of computer tools in photographic collections.

Looking under stones: A new Ctenomys species from the rocky foothills of the Sierras Grandes of central Argentina Mapelli, Fernando Javier; Teta, Pablo Vicente; Contreras, Facundo; Pereyra Villaurreta, Maria Daniela Renée; Priotto, Jose Waldemar; Coda, José Antonio Ctenomys (tuco-tucos) is one of the most speciose genera of mammals, and the number of species that compose it continues to increase. Of the 65 species currently recognized for the genus, 15% have been described in the last 10 years. In this work, based on morphological and molecular evidence, we describe a new species of tuco-tuco for Central Argentina. This new species inhabits stony soils in the foothills of Sierras Grandes in Córdoba province and is distinguished from its congeners by a combination of anatomical characters, including a unique morphology of the posterolateral extension of the palatine. The molecular phylogeny based on the mitochondrial cytochrome b gene showed that this new species does not belong to any species complex described for Ctenomys. On the contrary, this new taxon shows a high genetic divergence with the rest of the species and species groups of Ctenomys and was recovered as an independent lineage within the phylogeny of the genus. This finding increases the richness of Ctenomys to 66 species. Our results highlight the need to increase the geographic sampling of studies in this genus to achieve a more complete understanding of its diversity.

"A la vuelta de mi casa había un transa”: de la implicación de adolescentes varones con el narcotráfico hacia el mapeo del crimen organizado en el Gran Buenos Aires, Argentina; "Around the corner, there was a drug dealer": from the involvement of male adolescents in drug trafficking towards a methodological proposal for the mapping of organized crime in Greater Buenos Aires, Argentina Rocha, Heder Leandro En este trabajo presento una propuesta metodológica para el mapeo del narcotráfico en el Gran Buenos Aires, Argentina. Es una aproximación, no definitiva y “de abajo para arriba”. Es decir, sale del eslabón más “bajo” del narcotráfico para conocer las estructuras superiores. Utilizo 13 entrevistas en profundidad con jóvenes y adolescentes residentes del Gran Buenos Aires y que en noviembre de 2017 estaban bajo tratamiento por consumo de drogas en una comunidad terapéutica de Lomas de Zamora. La metodología utilizada sistematiza en una red semántica y en un mapa síntesis los relatos de interacción con el narcotráfico, reconstruyendo así algunas formas de espacialización, algunas relaciones de poder de su jerarquía interna y algunos de sus actores. Por fin, el esfuerzo desagua en una metodología capaz de iluminar el accionar espacial de otras actividades del crimen organizado como el tráfico de armas y la trata de personas.; In this article, I present a methodological proposal for the mapping of drug trafficking in Greater Buenos Aires, Argentina. It is a non-definitive, bottom-up approximation. In other words, it rises from the 'lowest' rung of drug trafficking to gain knowledge about the higher structures. I use 13 indepth interviews with young people and adolescents residing in Greater Buenos Aires who in November 2017 were undergoing treatment for problematic drug use in a therapeutic community in Lomas de Zamora. e methodology used systematizes the stories of interaction with drug trafficking in a semantic network and a synthesis map, thus reconstructing some forms of spatialization, some power relations in its internal hierarchy, and some of its actors. Finally, the effort culminates in a methodology which can illuminate the spatial action of other organized crime activities such as arms trafficking and human trafficking.

Development of new 1, 3-dihydroxyacridone derivatives as Akt pathway inhibitors in skeletal muscle cells Irazoqui, Ana Paula; Menéndez, Cintia Anabella; Steingruber, Sebastián; González, Agustina; Appignanesi, Gustavo Adrian; Buitrago, Claudia Graciela; Gerbino, Darío César In the present work, four new compounds based on the privileged structure acridone were efficiently synthesized following simple operational techniques and biologically tested on proliferative skeletal muscle cells (C2C12) and rhabdomyosarcoma cells (RD) showing no significant changes in the number of dead or viable cells at 1 µM during 24 or 48 h of treatment. Of relevance, acridone derivatives 3a-3d at 0.5 µM for 24 h effectively inhibited Akt activation in C2C12, while at 1 µM only compounds 3a and 3b have effect. RD cells showed a different response pattern. These cells treated with 3a (0.5 µM), 3b (0.5 µM) or 3d (0.5 or 1 µM) for 24 h shown significant Akt inhibition. In addition, 3a-3d assayed at 1 µM for 48 h were highly successful in inhibiting Akt phosphorylation. Finally, based on molecular docking and molecular dynamics simulations, we rationalize the experimental results mentioned above and propose that 3-phosphoinositide-dependent kinase-1 (PDK1) could be one of the molecular targets of this new series of 1, 3-dihydroxyacridone derivatives. Biological and in silico studies revealed that 3b could be considered as the most promising prototype for the development of new antitumor agents.

Hongos colectados en el sur de Argentina Ejemplares colectado por MATTHEW SMITH e investigadores locales durante las campañas de colecta realizadas en el sur Argentino, durante los años 2015-2016. Producto de un proyecto en conjunto entre el IMBIV y el Herbario de la Universidad de Florida.

First records of Anthopleura nigrescens (Verrill, 1928) and Telmatactis panamensis (Verrill, 1869) (Cnidaria, Anthozoa, Actiniaria) in the Coiba National Park, Pacific coast of Panama Acuña, Fabian Horacio; González Muñoz, Ricardo Enrique; Garese, Agustin; Díaz Ferguson, Edgardo We report two species of sea anemones, Anthopleura nigrescens (Verrill, 1928) and Telmatactis panamensis (Verrill, 1869), for the first time from Parque Nacional Coiba, a large, protected area in the Pacific off Panama. In addition, we describe the external anatomical taxonomic characters and provide images of live specimens of each species. The number of sea anemones species known for Panama is updated to 57. This work constitutes the first study in the documentation of sea anemones of Coiba Island.

GEMA—An Automatic Segmentation Method for Real-Time Analysis of Mammalian Cell Growth in Microfluidic Devices Isa Jara, Ramiro Fernando; Pérez Sosa, Camilo José; Macote Yparraguirre, Erick Leonel; Revollo Sarmiento, Natalia Veronica; Lerner, Betiana; Miriuka, Santiago Gabriel; Delrieux, Claudio Augusto; Pérez, Maximiliano; Mertelsmann, Roland Nowadays, image analysis has a relevant role in most scientific and research areas. This process is used to extract and understand information from images to obtain a model, knowledge, and rules in the decision process. In the case of biological areas, images are acquired to describe the behavior of a biological agent in time such as cells using a mathematical and computational approach to generate a system with automatic control. In this paper, MCF7 cells are used to model their growth and death when they have been injected with a drug. These mammalian cells allow understanding of behavior, gene expression, and drug resistance to breast cancer. For this, an automatic segmentation method called GEMA is presented to analyze the apoptosis and confluence stages of culture by measuring the increase or decrease of the image area occupied by cells in microfluidic devices. In vitro, the biological experiments can be analyzed through a sequence of images taken at specific intervals of time. To automate the image segmentation, the proposed algorithm is based on a Gabor filter, a coefficient of variation (CV), and linear regression. This allows the processing of images in real time during the evolution of biological experiments. Moreover, GEMA has been compared with another three representative methods such as gold standard (manual segmentation), morphological gradient, and a semi-automatic algorithm using FIJI. The experiments show promising results, due to the proposed algorithm achieving an accuracy above 90% and a lower computation time because it requires on average 1 s to process each image. This makes it suitable for image-based real-time automatization of biological lab-on-a-chip experiments.

Mujeres y política: Antiperonismo y moralidad sexual en Argentina (1946- 1952); Women and politics: Anti-peronism and sexual morality in Argentina (1946-1952) Perrig, Sara Angélica El presente artículo estudia el posicionamiento político de mujeres opositoras al gobierno de Juan Domingo Perón en Argentina (1946-1952) que participaban de las diferentes fuerzas partidarias de la época. Por un lado, analiza el modo en que estas desarrollaron un pensamiento sobre las mujeres y su inserción política atravesado por contradicciones y paradojas propias de los reclamos históricos por sus derechos. Por otro lado, aborda cómo las antiperonistas recurrían a una moralidad sexual tradicional para oponerse al peronismo, la misma que actuaba en las bases de su opresión y subordinación respecto a los hombres. Finalmente, el artículo sostiene que, a pesar de estar atravesadas por los obstáculos de pensar(se) desde un lugar de dominación, las mujeres participaron activamente de la esfera pública-política y reflexionaron sobre la incursión femenina en un ámbito masculinizado.

Reducing Operational Expenses of LoRaWAN-Based Internet of Remote Things Applications Finochietto, Mariano; Santos, Rodrigo Martin; Ochoa, Sergio F.; Meseguer, Roc LoRaWAN has become the most widely used low-power wide-area network technology to implement monitoring solutions based on the Internet of remote things (IoRT) paradigm. Typically, these solutions interconnect remote sensing areas and data processing infrastructure located in urban centers. The operation expenses of these solutions depend mainly on the traffic sent through the network backhaul, i.e., the link that connects the remote sensing area and the urban area where the data are usually processed and stored. This service is provided by telecommunication companies and represents the main operation cost of IoRT solutions. These expenses usually limit the affordability of IoRT-based systems in developing countries, and also in scenarios where the operational cost is an issue to address. This paper presents an extension to the LoRaWAN protocol, named Node-Aware-LoRaWAN (NA-LoRaWAN), that reduces the traffic in the backhaul, thus decreasing the operational expenses of IoRT-based systems. In order to evaluate the performance of NA-LoRaWAN, it was compared to a regular LoRaWAN implementation. Depending on the network scenario, the proposed extension reduced the traffic through the backhaul in the range of 12–34%. This extension opens several opportunities to use IoRT solutions in application domains with a low operational budget, e.g., precision agriculture, environmental monitoring and natural hazards’ early detection.

La Incidencia De La Variabilidad Pluviométrica Sobre La Hidroquímica Y El Riesgo Sanitario Potencial De Los Contaminantes Naturales En Una Cuenca Endorreica Del Sur De La Llanura Pampeana; Incidence Of Rainfall Variability On Hydrochemistry And The Potential Health Risk Of Natural Pollutants In An Endorheic Basin Of The Southern Pampean Plain Espósito, Martín Eduardo; Fernández, Sandra Noemí; Brandizi, Laura Daniela; Parodi, Elisa Rosalia A variabilidade das precipitações modifica a presença dos contaminantes naturais (As – F) dos recursos hídricos, deixando importante porcentagem de habitantes da zona rural e da periferia urbana exposta ao desenvolvimento de enfermidades. O objetivo é analizar a variação hidroquímica producida pelas variação das precipitações e determinar o risco sanitário potencial causado pela ingestão e contato dérmico com a água. Na bacia da Laguna de Puan se extraíram dez amostras de água em diferentes períodos pluviométricos durante três anos, para fins de determinação de valores As-F e realização de análises de risco à saúde. A profundidade do lençol freático foi determinada para estudar a hidrodinâmica. Todas as variáveis foram analisadas estatisticamente. Em um período de baixa pluviosidade, as concentrações do par As-F aumentam nas águas subterrâneas utilizadas para consumo humano, estabelecendo que a presença de As representa um alto risco à saúde das pessoas, ao contrário de F. A água da lagoa não é adequada para consumo humano e não representa risco devido ao contato com a pele para a saúde da população que pratica esportes aquáticos; The rainfall variability modifies the presence of natural pollutants (As-F) in this water resource, leaving a significant percentage of rural and peri-urban inhabitants exposed to the development of diseases. The objective is to analyze the hydrochemical variation produced by rainfalls and determine the potential health risk caused by ingestion and dermal contact of water. In order to determine the As-F values and perform health risk analyses, ten water samples were extracted from the Puán lagoon basin in different rainfall periods for 3 years. The water table depth was determined in order to study the hydrodynamics. All variables were analyzed statistically. In a period of low rainfall, the As-F concentrations in groundwater for human consumption increase, showing that the presence of As represents a high health risk for people, unlike F. The water in the lagoon is unfit for human consumption, and does not represent a risk due to dermal contact for the health of those who play water sports

IAPT chromosome data 36 Rodriguez Mata, Orlando Abrahan; Gianini Aquino, Analía Cecilia; Daviña, Julio Rubén; Honfi, Ana Isabel AMARYLLIDACEAE. Habranthus cardenasianus Traub & I. S. Nelson, 2n = 24; Argentina, Salta, 10 Oct 2013, D 666 (MNES). The karyotypic formula consists in 12 metacentric (m) and 12 submetacentric (sm) chromosomes (Fig. 3). The genomic size is 213.73 µm. Fluorescent in situ hybridization showed the hybridization sites of the ribosomal DNA probes. The presence of active ribosomal genes (rDNA 18S / 26S) was located on the short arm of chromosomes 9 and 10 (m), on the long arm of chromosome 1 (m) and on the short arm of submetacentric chromosomes 23 and 24.

Oxidation of α-Trifluoromethyl and Nonfluorinated Secondary Alcohols to Ketones Using a Nitroxide Catalyst Politano, Fabrizio; Brydon, William P.; Leadbeater, Nicholas E. A methodology for the oxidation of E-trifluoromethyl alcohols to the corresponding trifluoromethyl ketones is presented. A catalytic quantity of a nitroxide is used, and potassium persulfate serves as the terminal oxidant. The methodology proves effective for aromatic, heteroaromatic, and conjugated alcohol substrates. It can be extended to nonfluorinated secondary alcohols and, in this case, can be applied to a range of aromatic, heteroaromatic, and aliphatic alcohols.