Optical spectroscopic classification of 35 hard X-ray sources from the Swift-BAT 70-month catalogue Marchesini, Ezequiel Joaquín; Masetti, N; Palazzi, E.; Chavushyan, V.; Jiménez Bailón, E.; Patiño Álvarez, V. M.; Reynaldi, María Victoria; Rojas, A. F.; Saviane, I.; Andruchow, Ileana; Bassani, L.; Bazzano, A.; Bird, A. J.; Malizia, A.; Minniti, D.; Monaco, L.; Stephen, J. B.; Ubertini, P. The nature of a substantial percentage (about one fifth) of hard X-ray sources discovered with the BAT instrument onboard the Neil Gehrels Swift Observatory (hereafter Swift) is unknown because of the lack of an identified longer-wavelength counterpart. Without such follow-up, an X-ray catalogue is of limited astrophysical value: we therefore embarked, since 2009, on a long-term project to uncover the optical properties of sources identified by Swift by using a large suite of ground-based telescopes and instruments. In this work, we continue our programme of characterization of unidentified or poorly studied hard X-ray sources by presenting the results of an optical spectroscopic campaign aimed at pinpointing and classifying the optical counterparts of 35 hard X-ray sources taken from the 70-month BAT catalogue. This sample was selected out of the available information about the chosen objects: either they are completely unidentified sources, or their association with a longer-wavelength counterpart is still ambiguous. With the use of optical spectra taken at six different telescopes we were able to identify the main spectral characteristics (continuum type, redshift, and emission or absorption lines) of the observed objects, and determined their nature. We identify and characterize a total of 41 optical candidate counterparts corresponding to 35 hard X-ray sources given that, because of positional uncertainties, multiple lower energy counterparts can sometimes be associated with higher energy detections. We discuss which ones are the actual (or at least most likely) counterparts based on our observational results. In particular, 31 sources in our sample are active galactic nuclei: 16 are classified as Type 1 (with broad and narrow emission lines) and 13 are classified as Type 2 (with narrow emission lines only); two more are BL Lac-type objects. We also identify one LINER, one starburst, and 3 elliptical galaxies. The remaining 5 objects are galactic sources: we identify 4 of them as cataclysmic variables, whereas one is a low mass X-ray binary.

Hurgando en el arcón de los tiempos perdidos en los confines de la ecúmene. Las etnias selk'nam, yámana y halakwulup según el registro somatométrico de Martín Gusinde (1989 [1937]); Rummaging in the chest of lost time at the edges of the inhabited world: the selk’nam, yámana and halakwulup ethnic groups according to gusinde’s (1989 [1937]) somatometry Cocilovo, Jose Alberto; Varela, Hector Hugo; Valdano, Silvia Durante el siglo pasado, investigaciones realizadas sobre las etnias del extremo austral del continente americano proporcionaron abundante información sobre la etnografía y las características físicas que reflejan la composición de los fenotipos locales relacionados con selk'nam, yámana y halakwulup, entre las que se destaca la contribución de Martín Gusinde. En este trabajo se explora la estructura de la población nativa y las relaciones de parentesco sobre la base de rasgos fenotípicos con la evaluación de 18 variables cefalométricas en 110 individuos. El análisis estadístico multivariado confirma la existencia de diferencias significativas entre grupos y entre sexos por grupos. Se comprobó una marcada estructura de la población y un balance diferente entre grupos con relación a los efectos de la deriva genética y la migración. Halakwulup presentó una varianza fenotípica mayor que la esperada comparada con selk'nam y yámana. Las varianzas observadas de ambos sexos halakwulup y hombres selk'nam revelan su interacción en un circuito territorial mayor, mientras que las varianzas de ambos sexos yámana y mujeres selk'nam indican menor tamaño efectivo y su interacción en un ámbito más restringido. Se destaca el valor de la información recuperada pues refleja la condición humana en el límite de la supervivencia después de 10.000 años de historia.; During twentieth century, research on ethnic groups in the far south of the American continent provided much information on the ethnography and physical characteristics that reflect the composition of local phenotypes related to the Selk’nam, Yámana and Halakwulup, in which the contribution of Martín Gusinde stands out. This paper explores the structure of the native population and kinship relationships based on phenotypic traits resulting from the evaluation of 18 cephalometric variables in 110 individuals. Multivariate statistical analysis confirms the existence of significant differences between groups and between sexes by group. A marked population structure and a balance between genetic drift and different migration between groups were found. Halakwulup presented a higher phenotypic variance than expected compared with Selk’nam and Yámana. The observed variances of both sexes among the Halakwulup and Selk’nam men reveal their interaction in a larger territorial circuit, while the variances of both sexes among the Yámana and Selk’nam women indicate a smaller effective size and their interaction in a more restricted environment. The value of the study is that it highlights the human condition at the limit of survival after 10,000 years of history.

Upstream logistic transport planning in the oil-industry: a case study Rossit, Diego Gabriel; Gonzalez, Mauro Ehulech; Tohmé, Fernando Abel; Frutos, Mariano Nowadays, oil companies have to deal with an increasingly competitive environment. In this sense, the optimization of operational processes to enhance efficiency is crucial. This article addresses the design of a decision support tool for the inland upstream transport logistics in the oil industry based on a case of study in Argentina. This problem is traditionally difficult to solve for managers due to the large number of demand facilities scattered on a large geographic area that have to be served and the consideration of several operational requirements, such as maximum allowable travel times for vehicles, availability of a limited fleet size with a small number of drivers, plus the usual demand constraints as well as those arising from security risks derived from the incompatibility of chemical products. A novel mathematical formulation and a constructive heuristic are proposed in order to address this problem. The results allow to reduce the time that the company spends for obtaining a feasible distribution plan that minimizes the time horizon of the distribution schedule provided to the clients and enhances customer satisfaction.

Trophic ecology of a corymorphid hydroid population in the Bahía Blanca Estuary, Southwestern Atlantic Dutto, María Sofía; Carcedo, Maria Cecilia; Nahuelhual, Eugenia Gabriela; Conte, Alberto Fabian; Berasategui, Anabela Anhi; Garcia, Maximiliano Darío; Puente Tapia, Francisco Alejandro; Genzano, Gabriel Nestor; Hoffmeyer, Monica Susana Solitary macroscopic polyps are rare, and ecological information about them, such as diet and feeding rates is scarce worldwide. Here we describe the population of the solitary and seasonal polyps of Corymorpha januarii found in the Bahía Blanca Estuary, Argentina, and provide one of the first approaches to define their feeding ecology by gut content analysis. We analyzed the substrate and the accompanying benthic components, and provided in situ observations as well as observations on polyps kept in aquarium. A mean of 4 types of trophic items per polyp and 13.33 consumed prey items per polyp were obtained, representing a daily carbon consumption of 1.8 mg C per polyp per day and 75 mg C per square meter per day when considering polyp densities. The daily mass-specific ingestion rate was 20.5 % of polyp biomass. Polyps of C. januarii showed a variable diet composed mainly of organic matter and zooplanktonic prey, and probably selected copepods, mysids, and other zooplanktonic prey of lower or no swimming capacity (e.g., barnacle larvae and invertebrates, and fish eggs). The diversity of the prey ingested indicates that C. januarii is highly adaptable to changing environmental conditions, and this organism may have a significant role in energy transfer in estuarine waters.

Phylogenetic Relationships in Arjona (Schoepfiaceae), a Hemiparasitic Herb from Southern South America Vidal Russell, Romina Arjona is a small genus of hemiparasitic herbs distributed in southern South America. Most species are found in dry open areas in rocky and sandy soils whereas A. pusilla is found in humid places such as wet meadows. Regional treatments recognize five species and two varieties. The species are not clearly defined, and leaf shape and pubescence are the main differentiating taxonomic characters. In this study individuals from four of the five recognized species were examined to reconstruct the evolutionary history of the genus and to test the monophyly of recognized species. Samples covered the range of morphological variability and geographical distributional. The nuclear ribosomal internal transcribed spacer (ITS) regions and two chloroplast spacers (atpB-rbcL and trnL-F) were used to reconstruct the molecular phylogeny of the genus using Bayesian inference and maximum likelihood criteria. The molecular data show that geography better explains phylogenetic groupings than species assignment. This suggests that morphological variation among populations, in the context of the genetic lineages, should be studied in more detail to test the hypothesis that different ecotypes exist in Arjona.

Changes in grassland bird communities and breeding success after a fire in the Argentinian Pampas Bahía, Rocío; Zalba, Sergio Martín Fire is responsible for the structure and composition of the biological communities in grasslands, despite this, few studies evaluate the effects of fire on bird communities, especially in the southern cone of South America.We compared the structure and composition of vegetation, bird communities, density of nests and predation rates between burnt and unburnt areas in grassland habitats in the Argentine Pampas during two reproductiveseasons following a fire. The abundance, richness and diversity of birds were lower in the burnt areas and followed a pattern of interannual recovery associated with the increase in vegetation cover. The density ofnests and the number of nesting species was higher in the controls only during the first season. The risk of predation of artificial nests in burnt areas was greater one year after the fire in respect to the controls, thisdifference decreased over time in inverse relationship with the percentage of plant cover sorrounding the nests. Our results highlight the importance of a good vegetation structure and cover to support abundant andspecies-rich bird communities, as well as high values of nest density and reproductive success, and the ability of vegetation and bird communities to recover after the fire. However, this successional and temporary loss ofhabitats of high nesting value should be analyzed on a larger scale in order to consider the effect of the total reduction, and the fragmentation of the grasslands in a good state of conservation, on the population dynamicsof grassland birds.

Materiales plásticos con un larvicida y un atractante incorporados para el control del mosquito Aedes agypti, vector de enfermedades humanas Harburguer, Laura Vanesa Las estrategias de control del mosquito Ae. aegypti están dirigidas principalmente hacia las larvas para reducir la producción de nuevos mosquitos, junto con la aplicación espacial de adulticidas durante los brotes epidémicos o cuando la densidad de mosquitos adultos es muy elevada. Sin embargo, no todos los sitios de cría pueden ser totalmente eliminados o hacerlos a prueba de mosquitos, y es difícil involucrar a los miembros de la comunidad en campañas de control sostenidas en el tiempo. El desarrollo de métodos nuevos y eficaces para el control del vector del dengue es, por tanto,una prioridad, con especial énfasis en los métodos amigables con el medio ambiente y adecuados para la integración en programas de control basados en la participación de la comunidad.Las ovitrampas son recipientes construidos para imitar las características de los criaderos de Aedes de manera que resulten atractivos para las hembras. Se han utilizado durante muchas décadas como una herramienta de monitoreo para detectar rápidamente la presencia de esta especie de mosquito. Además de su valor para monitoreo, varios dispositivos de oviposición han sido evaluados como herramientas de control. Por ejemplo, las ovitrampas letales, que contienen un sustrato de oviposición tratado con un insecticida y las llamadas ovitrampas pegajosas o sticky-ovitraps que eliminan a las hembras en su intento de poner huevos dentro de la trampa.

Simondon y el problema de la analogía; Simondon and the Problem of Analogy Heredia, Juan Manuel El artículo analiza y problematiza el "método analógico" puesto en juego por la filosofía de la individuación de Gilbert Simondon. Plantea las condiciones del problema y reconstruye el debate que ha propiciado entre los intérpretes; precisa el carácter isodinámico y genético de la práctica analógica simondoniana, así como su objeto específico; analiza el vínculo teórico que mantiene con el Dialogue sur l´analogie (1946) de Bruno de Solages, y concluye con una reflexión relativa a las tensiones que recorren al método analógico en tanto intermediario entre epistemología y metafísica.; The article analyzes and critically discusses the “analogical method” mobilized by Gilbert Simondon's philosophy of individuation. It sets forth the conditions of the problem and reconstructs the debate it has triggered among interpreters; specifies the isodynamic and genetic character of Simondon's analogical practice, as well as its specific object; analyzes the theoretical link with Bruno de Solages' Dialogue sur l’analogie (1946); and concludes with a reflection on the tensions cutting across the analogical method as intermediary between epistemology and metaphysics.

Reconfiguración de las experiencias escolares de jóvenes de sectores populares a partir de las huellas institucionales de escuelas de nivel medio; Reconfiguração de experiências escolares de jovens de setores populares a partir de traços institucionais de escolas do ensino médio; Reconfiguration of school experiences of young people from popular groups based on the institutional marks of high schools Di Napoli, Pablo Nahuel; Richter, Nicolás Carlos En este artículo se analizan las huellas que las instituciones educativas de nivel secundario dejan en la subjetividad de las personas jóvenes que estudian en ellas. Desde las perspectivas sociológicas de la experiencia y de la individuación, de Dubet y de Martuccelli respectivamente, se parte de la pregunta sobre cuáles son los acontecimientos institucionales que consideran más significativos en sus biografías. Se hace foco en tres ejes de análisis categorizados como huellas institucionales: vínculos jóvenes-docentes; relación escuela-barrio; sentimiento de pertenencia a la institución. Hacia el final se proponen algunas inflexiones en la tensión entre las categorías de subjetividad e identidad en el marco de la reconfiguración de las agencias de jóvenes de sectores populares. Se trabaja con estudiantes y docentes de dos bachilleratos populares y una escuela confesional, instituciones situadas en zonas socialmente vulnerables del Área Metropolitana de Buenos Aires, Argentina, cuyos relatos biográficos fueron reconstruidos mediante entrevistas semi-estructuradas.; Neste artigo analisam-se os traços que as instituições de ensino médio deixam na subjetividade dos jovens que ali estudam. Conforme o trabalho com as perspectivas sociológicas da experiência e individuação, de Dubet e de Martuccelli respectivamente, parte-se da questão sobre quais são os eventos institucionais que eles consideram mais significativos em suas biografias. Centra-se em três eixos de análise categorizados como pegadas institucionais: ligações entre jovens e professores; relação escola-bairro; sentimento de pertencer à instituição. No final, algumas inflexões são propostas na tensão entre as categorias de subjetividade e identidade no marco da reconfiguração das agências juvenis dos setores populares. Trabalha-se com estudantes e referentes de duas escolas populares e uma escola confessional, instituições localizadas na Região Metropolitana de Buenos Aires, Argentina, cujas histórias de vida foram reconstruídas por meio de entrevistas semi-estruturadas.; In this article, we analyze the traces left by high school in the subjectivity of the young people who studied there. Based on a sociology of experience and individuation analysis, guided by Dubet’s and Martuccelli’s works respectively, we start with the question about which are the institutional events that they consider most significant in their biographies. The focus of the analysis is placed on three main axes categorized as institutional marks: the linkages between young students and their role models; the schoolneighborhood relation; and the feeling of belonging to the institution. Additionally, some inflections are proposed in the tension between the categories of subjectivity and identity, within the framework of the reconfiguration of youth agencies of popular groups. We work with students and referents from two popular high school institutions and a confessional school located in the Metropolitan Area of Buenos Aires, Argentina, whose biographical accounts were reconstructed through semi-structured interviews.

Efecto de la densidad de las forestaciones y la intensidad de cosecha en raleos mecanizados con harvester; Forest density and thinning intensity effect in mechanized thinning with harvester. Hildt, Eduardo; Leszczuk, Andrés Alejandro; Sclichter, Tomás; Mac Donagh, Patricio Miguel El objetivo de este estudio fue evaluar cómo la densidad de la forestación y la intensidad de los raleos afectan a la cosecha con harvester. Fueron evaluados siete harvesters diferentes, en nueve situaciones de segundo raleo de pino del noreste argentino. Los estudios de tiempos comprendieron el establecimiento de parcelas y la filmación de las operaciones. La densidad media de los rodales fue de 656 árboles.ha-1, con un volumen medio de 0,53 m3 . El raleo extrajo en promedio el 45% de los árboles. Fueron ajustados modelos mixtos a nivel de parcela para la duración de cada actividad, considerando a las características de la forestación y la operación como factores fijos y al sitio como factor aleatorio. La productividad de la cosecha en las distintas situaciones estuvo comprendida entre 11 y 46 m3 .h-1. El incremento en la densidad implicó una reducción en el tiempo de búsqueda de los árboles y un aumento en el tiempo de posicionamiento del cabezal, y de desrame y trozado. En cambio, el incremento de la intensidad de raleo redujo el tiempo de búsqueda de los árboles y favoreciendo la cosecha de árboles más grandes, aumentando la productividad. La elaboración de varios productos provocó una reducción del 21,6% en la productividad, respecto al trozado de un único producto triturable.; The objective of this study was to evaluate how forest density and thinning intensity affect the harvester work performance. Were studied seven different harvesters, in nine situations of second thinning of pine, from northeast Argentina. Time studies comprises the establish of plots and the filming of operations. Forests have an average density of 656 trees.ha-1, with a mean volume of 0.53 m3 . In thinning?s, a 45% of the trees were removed. Mixed plot-level models were adjusted for each activity, incorporating the forestry and operation characteristics as fixed factors, and the site as a random factor. The effective productivity was between 11 and 46 m3 .h-1. A higher forestry density implied a reduction in time for reach the trees and an increase in the time required for head positioning, delimbing and bucking. In contrast, an increased in thinning intensity reduced the time for reach the trees and implied the harvesting of larger trees, with a positive impact on productivity. The elaboration of several products implied a reduction of 21.6% in productivity with respect to the any pulpwood assortment.

Noise suppression in 2D and 3D seismic data with data-driven sifting algorithms Gómez, Julián Luis; Velis, Danilo Ruben; Sabbione, Juan Ignacio We have developed an empirical-mode decomposition (EMD) algorithm for effective suppression of random and coherent noise in 2D and 3D seismic amplitude data. Unlike other EMD-based methods for seismic data processing, our approach does not involve the time direction in the computation of the signal envelopes needed for the iterative sifting process. Instead, we apply the sifting algorithm spatially in the inline-crossline plane. At each time slice, we calculate the upper and lower signal envelopes by means of a filter whose length is adapted dynamically at each sifting iteration according to the spatial distribution of the extrema. The denoising of a 3D volume is achieved by removing the most oscillating modes of each time slice from the noisy data. We determine the performance of the algorithm by using three public-domain poststack field data sets: one 2D line of the well-known Alaska 2D data set, available from the US Geological Survey; a subset of the Penobscot 3D volume acquired offshore by the Nova Scotia Department of Energy, Canada; and a subset of the Stratton 3D land data from South Texas, available from the Bureau of Economic Geology at the University of Texas at Austin. The results indicate that random and coherent noise, such as footprint signatures, can be mitigated satisfactorily, enhancing the reflectors with negligible signal leakage in most cases. Our method, called empirical-mode filtering (EMF), yields improved results compared to other 2D and 3D techniques, such as f-x EMD filter, f-x deconvolution, and t-x-y adaptive prediction filtering. EMF exploits the flexibility of EMD on seismic data and is presented as an efficient and easy-to-apply alternative for denoising seismic data with mild to moderate structural complexity.

Impaired theory of mind in unaffected first-degree relatives of patients with anorexia nervosa Tapajoz Pereira de Sampaio, Fernanda; Soneira, Sebastian; Catoira, Natalia; Aulicino, Alfredo; Allegri, Ricardo Francisco Objective: Previous studies have shown theory of mind (ToM) is affected in patients with anorexia nervosa (AN). There has also been growing interest in the study of endophenotypes in psychiatric disorders, since they allow better understanding of genetic mechanisms underlying different conditions, making them potential targets for future treatment. The goal of this study was to investigate whether ToM inefficiencies observed in patients with AN, are shared by unaffected first-degree relatives. Method: Performance on two ToM tasks (Reading the Mind in the Eyes and Faux Pas Test) were compared in 17 unaffected first-degree relatives of AN patients and in 17 healthy individuals matched for age and level of education. Depression, anxiety, obsessive compulsive, and eating disorder symptoms were also assessed and correlated with ToM and clinical/demographic variables. Results: Significant differences between groups were observed in all ToM tasks, with relatives of AN patients showing poorer performance. ToM assessment did not correlate with any clinical or demographic variable. Conclusions: The preliminary results of this study suggest unaffected first-degree relatives of AN patients display similar patterns of difficulty in ToM as reported previously for AN patients, supporting the hypothesis that ToM inefficiencies are a familial trait in this condition.

Detection of Echinococcus granulosus sensu lato infection by using extracts derived from a protoscoleces G1 cell line Maglioco, Andrea Florencia; Gentile, Jorge; Barbery Venturi, Melisa Silvana; Jensen, Oscar; Hernández, Claudia; Gertiser, María Laura; Poggio, Thelma Veronica; Canziani, Gabriela Alicia; Fuchs, Alicia Graciela Cystic echinococcosis (CE) can be diagnosed by means of several serological approaches, but their results vary among laboratories due to the molecular characteristics of the reference antigens used. Thus, this study aimed to address both the relevance of an EGPE cell line previously obtained from Echinococcus granulosus protoscoleces G1 and the complexity of the immune response by using two different in vitro growth stages as separate sources of parasite antigens. The serum reactivity was investigated by western blotting (WB) in 21 CE patients from an endemic area in a matched case-control design and also in seven experimentally infected sheep and five healthy control sheep. EGPE-antigen-human serum sensitivity by WB was higher than that of hydatid fluid (HF) WB, ELISA and DD5 (P <.05, Chi-square test). EGPE protein extract was immunogenic in mice and hyperimmune plasma reacted with HF proteins, and AgB2 expression was detected by molecular analysis. Proteins of 37 to 60 kDa were recognized by 95.24% of the CE patients’ sera but, with poor specificity. Statistically significant differences were found between serum protein extract recognition at 7 and 20 days of cell growth. The EGPE cell line is a laboratory source of antigens for improvement of CE serological diagnosis.

Los derechos de las mujeres en Arabia Saudita durante la era de Mohamed bin Salman: hacia el establecimiento de una esfera pública virtual Rullansky, Ignacio El reinado de Salman bin Abdulaziz, es actualmente considerado como un período particular en la historia de Arabia Saudita. Su hijo, el príncipe heredero a la corona saudí, Mohamed bin Salman (MBS), realiza un emblemático papel respecto a esta cuestión. Como segundo en la línea de sucesión, MBS ejerce los cargos de vicepresidente del consejo de ministros y presidente del consejo de asuntos económicos y de desarrollo. En otras palabras, la competencia que conlleva el desempeño de estos cargos hace de su sello, un factor clave en el diseño de la política doméstica e internacional del reino. Así lo demuestra, por ejemplo, su presentación del plan “Visión 2030”, un compendio de puntos elaborados en torno a impulsar un proceso de modernización tecnológica, transparencia institucional, diversificación económica, mejora en la calidad infraestructural y de servicios públicos, y de transformación cultural.

Acerca de los elementos pertenecientes al grupo 3 de la tabla periódica: Un nuevo enfoque; On the membership of group 3 of the periodic table: A new approach Labarca, Martín Gabriel; Martínez González, Juan Camilo En abril de 2015 un equipo internacional de investigadores lograba medir, por primera vez, la primera energía de ionización del laurencio, un elemento superpesado de número atómico 103. El resultado experimental, publicado en la prestigiosa revista científica Nature, daba lugar a la reapertura de un antiguo debate que concierne a los elementos que deben formar parte del grupo 3 de la tabla periódica. El propósito de este trabajo es brindar una nueva línea de argumentación para elucidar este problema.; In April 2015, an international team of researchers announced the measurement, for the first time, of the first ionization energy of lawrencium, a superheavy element of atomic number 103. The experimental result, published in the prestigious scientific journal Nature, led to the reopening of a long-standing debate that concerns the elements that should be part of group 3 of the periodic table. The aim of this paper is to introduce a new line of argumentation to elucidate this problem.

For adults with drug-resistant focal epilepsy, what are the effects of adjunct eslicarbazepine acetate? Ciapponi, Agustín For adults with drug‐resistant focal epilepsy taking up to three antiepileptic drugs, moderate‐certainty evidence shows that adding eslicarbazepine acetate (400 to 1200 mg/d) probably increases the number of people achieving at least a 50% reduction in seizure frequency (370 vs 217 per 1000 people; all results on average) and slightly increases the number of people achieving seizure freedom (29 vs 10 per 1000 people). There was no clear difference in all‐cause treatment withdrawal overall or for the two lower doses (400 and 800 mg/d), but at 1200 mg/d, increased withdrawal from eslicarbazepine acetate was notable (308 vs 176 per 1000 people). More people experienced a range of adverse effects with eslicarbazepine acetate than with placebo, including dizziness, nausea, somnolence, diplopia, and vomiting (increases ranged from 31 to 153 per 1000 people). Withdrawals due to adverse effects were increased with eslicarbazepine acetate overall (106 vs 40 per 1000 people) and, more importantly, for the two higher doses (800 and 1200 mg/d).

UV-C light inactivation of single and composite microbial populations in tangerine-orange juice blend: Evaluation of some physicochemical parameters Fenoglio, Daniela; Ferrario, Mariana Inés; Schenk, Marcela Liliana; Guerrero, Sandra N. This study was aimed at investigating the response of single Saccharomyces cerevisiae KE162 or composited with three cocktails in a turbid orange-tangerine juice blend processed by UV-C 1720 mJ/cm2, 20 °C). Additionally, changes in polyphenol content (PC), total antioxidant activity (TAA), and some physicochemical parameters were analyzed after treatment. S. cerevisiae was combined with cocktails of yeasts (YC), Escherichia coli or native flora isolated from orange-tangerine peel. The adequacy of three conceptually different predictive models was also assessed. Overall, microbial inactivation curves displayed, in general, sigmoidal shape, with a significant shoulder. Moderate inactivation of single or composited inocula was achieved after UV-C treatment (3.9–4.3 log reductions). Coroller model allowed the best fit and the most accurate parameters’ estimation. S. cerevisiae in presence of background cocktails was less sensitive to UV-C, probably due to the interfering populations that hindered light path. UV-C treated juice displayed similar PC (0.61 ± 0.06 mg GAE/mL) and TAAABTS (0.82 ± 0.14 mg TroloxEq/mL) values than untreated juice (PC = 0.63 ± 0.10 mg GAE/mL; TAAABTS = 0.58 ± 0.40, TAADPPH = 3.69 ± 0.14 mg TroloxEq/mL), and a slight decrease in TAADPPH (2.77 ± 0.06 mg TroloxEq/mL), according to MANOVA. In addition, no changes in colour, acidity, turbidity, °Brix and pH (p > 0.05) were recorded after UV-C exposure.

Mathematical modeling of interactions of cabergoline with human serum albumin for biosensing of human serum albumin Jalalvand, Ali R.; Ghobadi, Sirous; Akbari, Vali; Goicoechea, Hector Casimiro; Faramarzi, Elahe; Mahmoudi, Majid In this work, we are going to study the interactions of cabergoline (CBG) with human serum albumin (HSA) by mathematical modeling of voltammetric and spectroscopic data. To achieve this goal, voltammetric and spectroscopic data will be augmented into a data matrix which will be resolved by multivariate curve resolution-alternating least squares (MCR-ALS) as a powerful chemometric tool. Then, the quality of the data fitting by MCR-ALS will be examined by MCR-BANDS to ensure about the absence of the rotational ambiguities in the results. Molecular docking will also be used to model the interactions of CBG with HSA for verifying the results obtained from experimental methods. Hard-modeling of the experimental data will be performed by EQUISPEC to compute the binding constant of the complex formed from the interactions of CBG with HSA for verifying the binding constant obtained by direct analysis of the experimental data. Finally, two chrono-amperometric measurements based on CBG-HSA interactions will be performed to develop a novel electroanalytical method for determination of electro-inactive HSA.

Young star clusters and the structure of the second Galactic quadrant II Molina Lera, José Alejo; Baume, Gustavo Luis; Gamen, Roberto Claudio Galactic spiral arms are traced using young objects as giant molecular clouds, H II regions, OB stars, or young open/embedded clusters. To improve the knowledge of the Galactic structure in the second quadrant we selected, from more than 200 open clusters covered by the SDSS, a sample of 10 young stellar clusters to conduct a spectrophotometric study. Photometric data were provided by SDSS and APASS in the optic bands and by 2MASS and WISE in the infrared. Spectroscopic information was obtained from observations acquired with GMOS/GEMINI complemented with data from the literature. For six of the 10 clusters, distances were also obtained with our astrometric Gaia data analysis. To perform all tasks we used a suite of tools developed by us. Our results show that these open clusters are distributed along three spiral arms, covering distances from 1.8 to 8.0 kpc. We confirm, using our novel spectroscopic data, our previews photometric estimations regarding the Galactic location of the cluster Teutsch 45. We found that it is located beyond the ?Outer Arm? and probably belong to the more distant ?New Arm? extending its trace almost to the anticentre. Hence, it was possible to get a better picture of the structure of the outer regions of the Galaxy. For clusters with pre-main-sequence populations we also found traces of coeval star formation processes. Regarding spectroscopic data and most massive members of the clusters, we discovered seven B-type stars, all earlier than B4 and we also confirmed the spectral classification of one O8-8.5 type star.

''La vida al día'': modernización periodística y noticias policiales en la prensa anarquista y socialista de Buenos Aires a comienzos del siglo XX; "Living the day": journalistic modernization and police news in the anarchist and socialist press of Buenos Aires at the beginning of the 20th century Buonuome, Juan Cristóbal; Albornoz, Martín En este artículo analizamos la presencia de noticias policiales en La Protesta y La Vanguardia, principales periódicos del anarquismo y socialismo de la ciudad de Buenos Aires en la primera década del siglo XX. Dos hipótesis estructuran nuestro trabajo. La primera postula que La Protesta y La Vanguardia mostraron un alto grado de permeabilidad al proceso de modernización que atravesó el periodismo en este período. En tal sentido, nos detenemos en la incorporación de innovaciones estructurales y estilísticas que realizaron ambos periódicos, en un contexto de emergencia y expansión de un público lector de carácter masivo. La segunda hipótesis plantea que la inclusión de las noticias policiales en La Protesta y La Vanguardia no fue fijada, necesariamente, bajo parámetros doctrinarios y que respondió, en cambio, a una búsqueda por establecer un vínculo más directo y cotidiano con las inquietudes con las que la desordenada vida urbana de la Buenos Aires del novecientos amenazaba a sus lectores.; In this article we analyze the presence of police information in La Protesta and La Vanguardia, the main newspapers of anarchism and socialism of the city of Buenos Aires in the first decade of the 20th century. Two hypotheses struc-ture our work. The first proposes that La Protesta and La Vanguardia showed a high degree of permeability to the process of modernization that journalism went through in this period. In this sense, we explore the incorporation of structural and stylistic innovations made by both newspapers, in the context of emergence and expansion of a mass reading public. The second hypothesis states that the inclusion of police information in La Protesta and La Vanguardia was not nec-essarily set under doctrinal parameters and that it responded, instead, to the firm intention to establish a more direct and daily bond with the concerns with which the disorderly urban life of Buenos Aires in the nineteenth century threatened its readers.