Microfacismo en el rock argentino. Una enunciación novedosa en El salmón, de Andrés Calamaro

Argentinean rock has, in some of its forms and from its origins, a discourse that can be considered as politically dissenting and which identifies elements of political superstructure as the target of its claims. In this paper, we analyze the presence of a contradictory enunciator in some of the songs of El Salmón [2000] album, by the Argentinean composer and musician Andrés Calamaro. We conclude that Calamaro introduces, from the enunciation, an original dissident vocality because he includes micropolitics as a key dimension for macropolitics.El rock nacional argentino, en algunas de sus vertientes, posee desde sus orígenes un discurso que puede considerarse como políticamente contestatario y que identifica como objeto de sus reclamos a elementos de la superestructura sociopolítica. En este trabajo se revisa la presencia de un enunciador contradictorio en algunas canciones del álbum El Salmón (2000), del compositor y músico argentino Andrés Calamaro. Se concluye que Calamaro introduce desde la enunciación una vocalidad disidente novedosa, dado que involucra lo micropolítico como una dimensión fundamental de lo macropolítico

Host-pathogen evolutionary signatures reveal dynamics and future invasions of vampire bat rabies

Anticipating how epidemics will spread across landscapes requires understanding host dispersal events that are notoriously difficult to measure. Here, we contrast host and virus genetic signatures to resolve the spatiotemporal dynamics underlying geographic expansions of vampire bat rabies virus (VBRV) in Peru. Phylogenetic analysis revealed recent viral spread between populations that, according to extreme geographic structure in maternally inherited host mitochondrial DNA, appeared completely isolated. In contrast, greater population connectivity in biparentally inherited nuclear microsatellites explained the historical limits of invasions, suggesting that dispersing male bats spread VBRV between genetically isolated female populations. Host nuclear DNA further indicated unanticipated gene flow through the Andes mountains connecting the VBRV-free Pacific coast to the VBRV-endemic Amazon rainforest. By combining Bayesian phylogeography with landscape resistance models, we projected invasion routes through northern Peru that were validated by real-time livestock rabies mortality data. The first outbreaks of VBRV on the Pacific coast of South America could occur by June 2020, which would have serious implications for agriculture, wildlife conservation, and human health. Our results show that combining host and pathogen genetic data can identify sex biases in pathogen spatial spread, which may be a widespread but underappreciated phenomenon, and demonstrate that genetic forecasting can aid preparedness for impending viral invasions

The susceptibility of Varroa destructor against oxalic acid: A study case

Varroa destructor Anderson et Trueman is an ectoparasitic mite of the honey bee Apis mellifera L. and it must be controlled in managed bee colonies to maintain colony health. Taking into account that these mites are now resistant to synthetic acaricides worldwide, oxalic acid was suggested as an alternative for Varroa control. Oxalic acid is one of the most common natural miticides used against varroosis by spraying and sublimation administration techniques. It is a natural constituent of honey, very active against the Varroa mite, safe to use for beekeepers, and has no residue problems. Nevertheless, some authors have predicted that the risk of developing resistance to oxalic acid in mites is high. The objective of this research was to assess the susceptibility to oxalic acid of a V. destructor population belonging to a commercial apiary where 64 consecutive control treatments with this acid were performed. Bioassays to assess the oxalic acid susceptibility were performed on two mite populations: (1) a „focal‟ population consisting of mites previously exposed to oxalic acid treatments, and (2) a „naïve‟ population that was never exposed to this acid, which allows setting a reference in the absence of historical data on our „focal‟ mites. The results reported here suggest that the Varroa population exposed during 8 successive years to oxalic acid treatments remains susceptible to this acid.Fil: Maggi, Matías Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología. Laboratorio de Artrópodos; ArgentinaFil: Damiani, Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología. Laboratorio de Artrópodos; ArgentinaFil: Ruffinengo, Sergio Roberto. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Departamento de Producción Animal. Cátedra de Apicultura; ArgentinaFil: Brasesco, Maria Constanza. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología. Laboratorio de Artrópodos; ArgentinaFil: Szawarski, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Ministerio de Ciencia, Tecnología e Innovación Productiva. Agencia Nacional de Promoción Científica y Tecnológica. Fondo para la Investigación Científica y Tecnológica; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología. Laboratorio de Artrópodos; ArgentinaFil: Mitton, Giulia Angelica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología. Laboratorio de Artrópodos; ArgentinaFil: Mariani, Fernando. Beekeeping Consultant; ArgentinaFil: Sammataro, Diana. Carl Hayden Honey Bee Research Center; Estados UnidosFil: Quintana, Silvina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología. Laboratorio de Artrópodos; Argentina. Fares Taie Instituto de Análisis; ArgentinaFil: Eguaras, Martin Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología. Laboratorio de Artrópodos; Argentin

COMPARAÇÃO DOS TESTES DE IMUNOFLUORESCÊNCIA INDIRETA (RIFI) E REAÇÃO EM CADEIA DA POLIMERASE ANINHADA (NESTED-PCR) NO DIAGNÓSTICO DA INFECÇÃO DE EQÜINOS POR Babesia equi

Este trabalho teve como objetivo comparar os testes de reação em cadeia da polimerase aninhada(nested-PCR) e imunofluorescência indireta (RIFI) na detecção de Babesia equi em eqüinos daraça PSI (Puro Sangue Inglês). Os testes foram realizados em amostras de sangue de 108 eqüinos. Aconcordância entre os testes foi de 87,0 % e observou-se alta associação entre as técnicas (2 =37,9; p 0,001). Nas amostras em que não houve concordância (13 % dos animais), 3 forampositivas na técnica de nested-PCR e negativas na técnica RIFI e 11 foram negativas na técnica denested-PCR e positivas para RIFI. Novos estudos precisam ser desenvolvidos para esclarecer alguns aspectos relacionados ao diagnóstico da B. equi. Entretanto, a boa associação obtida entre os testesde nested-PCR e RIFI permite concluir que a nested-PCR pode ser uma ferramenta eficiente nodiagnóstico e no controle da disseminação da babesiose eqüina.Palavras-chave: Babesia equi, nested-PCR, RIFI

Psihometrijska svojstva Upitnika općega zdravlja (GHQ-28) kod ekvadorskih studenata

Objective: To analyse the internal structure of the 28-item version of the General Health Questionnaire (GHQ-28), as well as its reliability and validity in relation to other variables in a sample of Ecuadorian university students. Method: Instrumental design with confirmatory factor analysis using weighted least square mean and variance adjusted (WLSMV) estimator, reliability and convergence and discrimination validity of the GHQ-28. Sample: 495 students (56.6% women), between 18 to 35 years old (M = 24.1 years; SD = 2.1), from three universities (59.6% public) in Ecuador. Results: The bifactor model of the GHQ-28 test has an adequate fit with χ2 = 357.81; p > .05; df = 322; χ2/df = 1.11; CFI = .991; TLI = .989; SRMR = .059; RMSEA = .015 [.000 – .023]; ωH = .93; ECV = .90; PUC = .78. The GHQ-28 is reliable and in terms of convergent validity, it correlates significantly and negatively with mental health, assessed by MHC-SF, and it is discriminant between risk and non-risk cases. Conclusion: The GHQ-28 bifactor model is replicable in Ecuadorian college students.Cilj je rada bio analiza unutarnje strukture verzije Upitnika općega zdravlja od 28 čestica (GHQ-28), kao i njegove pouzdanosti i valjanosti na uzorku ekvadorskih studenata. Primijenjena je konfirmatorna faktorska analiza, uz korištenje algoritma WLSMV (engl. weighted least square mean and variance adjusted), a izračunane su pouzdanost te konvergentna i diskriminacijska valjanost. Uzorak se sastojao od 495 studenata (56.6 % žena), starosti između 18 i 35 godina (M = 24.1 godina; SD = 2.1), polaznika triju sveučilišta u Ekvadoru (59.6 % državnih). Prema dobivenim rezultatima bifaktorski model upitnika GHQ-28 pokazuje najbolje indekse pristajanja; χ2 = 357.81; p > 0.05; df = 322; χ2/df = 1.11; CFI = .991; TLI = .989; SRMR = 0,059; RMSEA = .015 [.000 – .023]; ωH = .93; ECV = 0.90; PUC = .78. Upitnik GHQ-28 pouzdana je mjera koja u smislu konvergentne valjanosti značajno i negativno korelira s mentalnim zdravljem, procijenjenim pomoću upitnika MHC-SF, te uspješno diskriminira rizične i nerizične slučajeve. Na temelju svega navedenoga zaključuje se da bifaktorski model GHQ-28 najbolje pristaje podacima dobivenima na uzorku ekvadorskih studenata

Siesta: Recent developments and applications

A review of the present status, recent enhancements, and applicability of the Siesta program is presented. Since its debut in the mid-1990s, Siesta?s flexibility, efficiency, and free distribution have given advanced materials simulation capabilities to many groups worldwide. The core methodological scheme of Siesta combines finite-support pseudo-atomic orbitals as basis sets, norm-conserving pseudopotentials, and a real-space grid for the representation of charge density and potentials and the computation of their associated matrix elements. Here, we describe the more recent implementations on top of that core scheme, which include full spin?orbit interaction, non-repeated and multiple-contact ballistic electron transport, density functional theory (DFT)+U and hybrid functionals, time-dependent DFT, novel reduced-scaling solvers, density-functional perturbation theory, efficient van der Waals non-local density functionals, and enhanced molecular-dynamics options. In addition, a substantial effort has been made in enhancing interoperability and interfacing with other codes and utilities, such as wannier90 and the second-principles modeling it can be used for, an AiiDA plugin for workflow automatization, interface to Lua for steering Siesta runs, and various post-processing utilities. Siesta has also been engaged in the Electronic Structure Library effort from its inception, which has allowed the sharing of various low-level libraries, as well as data standards and support for them, particularly the PSeudopotential Markup Language definition and library for transferable pseudopotentials, and the interface to the ELectronic Structure Infrastructure library of solvers. Code sharing is made easier by the new open-source licensing model of the program. This review also presents examples of application of the capabilities of the code, as well as a view of on-going and future developments.SIESTA development was historically supported by different Spanish National Plan projects (Project Nos. MEC-DGES-PB95-0202, MCyT-BFM2000-1312, MEC-BFM2003-03372, FIS2006-12117, FIS2009-12721, FIS2012-37549, FIS2015-64886-P, and RTC-2016-5681-7), the latter one together with Simune Atomistics Ltd. We are thankful for financial support from the Spanish Ministry of Science, Innovation and Universities through Grant No. PGC2018-096955-

The state of the Martian climate

60°N was +2.0°C, relative to the 1981–2010 average value (Fig. 5.1). This marks a new high for the record. The average annual surface air temperature (SAT) anomaly for 2016 for land stations north of starting in 1900, and is a significant increase over the previous highest value of +1.2°C, which was observed in 2007, 2011, and 2015. Average global annual temperatures also showed record values in 2015 and 2016. Currently, the Arctic is warming at more than twice the rate of lower latitudes