Formación virtual sobre tesis de posgrado: construcción del conocimiento en actividades con pares y expertos en foros; Virtual learning about postgraduate thesis: knowledge building level in activities with peers and experts in forums; Experiências locais de formação cidadã na infância em instituições públicas de ensino de ibagué – tolima, colombia Alvarez, Guadalupe; Difabio, Hilda Emilia El objetivo del artículo es analizar las formas de construcción del conocimiento en las intervenciones que alumnos de posgrado comparten en foros diseñados para el intercambio grupal en un taller virtual de escritura de tesis. Como metodología se realiza un estudio descriptivo y exploratorio cualitativo que se enmarca en una investigación-acción de mayor envergadura. Se analizan 81 intervenciones, extraídas de siete foros propuestos en una edición el taller virtual que se desarrolló en 2016 con dos investigadores docentes y catorce estudiantes de posgrado de distintas ciencias humanas y sociales de diferentes universidades argentinas. Inicialmente se cuantifican las intervenciones según la presencia (o no) de diálogo (encadenamiento) con aportes previos, así como su tipo en términos de procesamiento conceptual (reproductiva, interpretativa básica o elaborada, constructiva); luego, se analizan y cuantifican en función del tipo de acción discursiva detectada en relación con el encadenamiento. De acuerdo con lo analizado, se sugeriría mayor nivel de procesamiento conceptual en las intervenciones que dialogan con aportes previos de los pares. Además, dicho nivel aumentaría levemente en el desarrollo de los sucesivos foros propuestos en el taller. Por otra parte, se han detectado diversas acciones discursivas en vinculación con los encadenamientos y, en relación con ellas, parecería que se alcanza un mayor nivel de procesamiento conceptual en los casos en que las intervenciones comparten las dimensiones o aspectos que se analizan.; The aim of the article is to analyze the forms of knowledge construction in the interventions that graduate students share in forums designed for group exchange in a virtual thesis writing workshop. A descriptive and exploratory study is carried out that is part of a larger action-research study. 81 interventions are analyzed, taken from seven forums proposed in an edition of the virtual workshop that was developed in 2016 with two teaching researchers and fourteen postgraduate students of different Human and Social Sciences from different Argentine universities. Initially, the interventions are analyzed and quantified according to the presence (or not) of dialogue (linkage) with previous contributions, as well as their type in terms of conceptual processing (reproductive, basic or elaborated interpretative, constructive); then, they are analyzed and quantified according to the type of discursive action detected in relation to the linkage. According to what was analyzed, a greater level of conceptual processing would be suggested in the interventions that dialogue with previous contributions of the peers. In addition, this level would increase slightly during the development of the successive forums proposed in the workshop. On the other hand, several discursive actions have been detected in relation to linkages and, in relation to them, it would seem that a higher level of conceptual processing is reached in cases in which the interventions share the dimensions or aspects that are analyzed.; O objetivo do artigo é analisar as formas de construção do conhecimento nas intervenções que os estudantes de pós-graduação compartilham em fóruns de intercâmbio em um workshop virtual de redação de teses. Como metodologia, um estudo exploratório descritivo e qualitativo é realizado como parte de uma pesquisa-ação em maior escala. São analisadas 81 intervenções, a partir de sete fóruns propostos em uma edição do workshop virtual que foi desenvolvido em 2016 com dois pesquisadores de ensino e catorze estudantes de pós- -graduação de diferentes Ciências Humanas e Sociais de diferentes universidades argentinas. Inicialmente, as intervenções são quantificadas de acordo com a presença (ou não) de diálogo (cadeia) com contribuições anteriores, bem como o seu tipo em termos de processamento conceptual (reprodutivo, básico interpretativo ou elaborado, construtivo); depois, são analisadas e quantificadas de acordo com o tipo de acção discursiva detectada em relação à cadeia. De acordo com a análise, um maior nível de processamento conceitual seria sugerido para intervenções que dialogam com contribuições anteriores dos pares. Além disso, este nível aumentaria ligeiramente no desenvolvimento dos fóruns sucessivos propostos no workshop. Por outro lado, várias ações discursivas têm sido detectadas em relação às cadeias e, em relação a elas, parece que se alcança um maior nível de processamento conceitual nos casos em que as intervenções compartilham as dimensões ou aspectos analisados.

Una visión antropólogicamente religiosa; An anthropologically religious view Frigerio, Alejandro Su doble condición de pai y (cuasi) académico se vislumbra, especialmente, en su descripción de las naciones del batuque. El concepto de nación tiene una gran importancia "nativa", es una identificación particularmente cargada de emotividad y que ubica al religioso dentro de un cierto linaje, y lo posiciona inequívocamente dentro del campo religioso afrobatuquero: se pertenece a determinado linaje y por él, a una determinada nación. En dos de los trabajos aquí presentados la descripción de las naciones ocupa un lugar relevante, pero es, a la vez, relativizado fácticamente, al decir que en realidad la mayor parte de las casas hacen los toques de la nación Ijexá. Su descripción, y bastantes partes del escrito, no dejan de recordarme los del recordado "maestro" bahiano Vivaldo da Costa Lima quien era también sin duda un anfibio, sólo que desde otro lado: un académico con un profundo conocimiento de lo religioso y un compromiso que lo volvían prácticamente un nativo.

Bare-carbon-ion-impact electron emission from adenine molecules: Differential and total cross-section measurements Bhattacharjee, Shamik; Bagdia, Chandan; Chowdhury, Madhusree Roy; Mandal, Anuvab; Monti, Juan Manuel; Rivarola, Roberto Daniel; Tribedi, Lokesh C. Double-differential ionization cross sections (DDCS) for bare-carbon-ion-induced ionization of vapor-phase adenine molecules (C5H5N5) have been measured. The experiment has been performed using an electron spectroscopy technique. Electrons ejected from adenine were analyzed by a hemispherical electrostatic deflection analyzer over an energy range of 1-450eV for emission angles from 20 to 160. The single-differential cross section (SDCS) and total ionization cross section were also deduced. The experimental results have been compared with the continuum distorted wave-eikonal initial-state model calculation. We have observed a very good agreement between the theory and experiment. The angular distribution of the DDCS, SDCS and the asymmetry parameter for low-energy (Ee≤0.5 a.u.) electron display an oscillatory behavior which is in contrast to that observed in ion-atom collisions. A comparison is also made with available experimental cross-section results for uracil target colliding with the same velocity bare carbon ions and the scalability of ionization cross sections among these molecules is discussed.

Management and environmental factors explaining soybean seed protein variability in central Argentina Bosaz, Lina Belén; Gerde, Jose Arnaldo; Borras, Lucas; Cipriotti, Pablo Ariel; Ascheri, Luciano; Campos, Matías; Bergallo, Santiago; Rotundo, José Luis Soybean production is challenged to increase yield while maintaining seed protein concentration levels. Variability in protein concentration has been poorly described in many regions, and management options targeting their levels are not available. Our objectives were (i) to describe soybean seed protein in the central production systems of Argentina, (ii) to explore spatial patterns across the region, (iii) to quantify the importance of management and environment on protein concentration, and (iv) to explore correlations between seed protein concentration, seed yield, and total canopy N uptake. We sampled 1721 farm fields across the region, and conducted 52 cultivar trials from 2012 to 2016. Average seed protein concentration was 36.6 and 37.6% for soybean grown as a single crop in the season and as a second crop after a winter one, respectively. Seed protein concentration showed a spatial pattern in soybean as single crop, allowing us to identify well-delimited areas with contrasting protein values. Regression trees of farm fields explained 38 and 48% of total variation in seed protein for soybean as single and second crop, respectively. Relative to this explained variation, management variables accounted for ∼73% of seed protein concentration variation in both crops, where cultivar selection was the most relevant (71.5 and 68.9% for soybean as single and second crop, respectively), followed by planting date (2.5%), and maturity group (1.8%). Despite its minor importance compared to management practices, temperature and rainfall were also associated to protein variability. The response to temperature differed between soybeans as single and second crop. Reduced rainfall was associated to increased seed protein concentration only for soybean as a second crop. Cultivar trials identified consistent high seed protein cultivars. Sites with high yield and quality were evident, but results showed clear cultivar trade-off correlations between yield and protein concentration. Results highlight the need to investigate ways to improve total canopy N uptake for allowing both yield and seed protein to increase simultaneously.

La premisa del argumento como la cita de su norma. Los dominios de memoria en las últimas palabras del juicio Videla I Aniceto, Paulo Damián En este artículo, nos planteamos el objetivo de comprender y describir las escenas judiciales de veridicción (Foucault, 2014 [2012]) que, en medios semióticos agonísticos, dramatizan la inversión de las asimetrías procesales e inscriben singulares dominios de memoria sobre el pasado dictatorial. Para esto, analizamos las estrategias que los performances de las últimas palabras de perpetradores de crímenes de lesa humanidad despliegan en la discusión final del juicio conocido como Videla I, realizado en Córdoba, en 2010. La reconfiguración del campo de justas donde las relaciones de fuerzas eran reguladas por un régimen de sombras (Ferrero, 1999), se caracterizó por la irrupción progresiva de un nuevo régimen de memoria estatal, o régimen de luz (Ferrero, 1999). Elinterés de las últimas palabras proviene de la naturaleza política de su acontecimiento. El discurso de los perpetradores, en tanto que emerge en este contexto de dislocación de los equilibrios que clausuraban la vía penal, objeta la sentencia inminente para objetar el medio semiótico de esa dislocación. Dos operaciones teóricas subyacen a nuestro análisis: la devolución del acontecimiento del discurso jurídico, completamente autónomo en apariencia, al dominio de la discursividad social y la representación del período iniciado con la reapertura de las causas en 2005 como el de una justa discursiva librada en cada rito judicial. En un movimiento circular de retorno estratégico, los relatos de las últimas palabras emergen como citas históricas de la norma que debería, de conformidad con sí misma, regular hechos como los relatados.

Thermal torque effects on the migration of growing low-mass planets Guilera, Octavio Miguel; Cuello, N.; Montesinos, M.; Miller Bertolami, Marcelo Miguel; Ronco, María Paula; Cuadra, J.; Masset, F. S. As planets grow the exchange of angular momentum with the gaseous component ofthe protoplanetary disc produces a net torque resulting in a variation of the semi-major axis of the planet. For low-mass planets not able to open a gap in the gaseousdisc this regime is known as type I migration. Pioneer works studied this mechanismin isothermal discs finding fast inward type I migration rates that were unable toreproduce the observed properties of extrasolar planets. In the last years, several im-provements have been made in order to extend the study of type I migration rates tonon-isothermal discs. Moreover, it was recently shown that if the planet?s luminositydue to solid accretion is taken into account, inward migration could be slowed downand even reversed. In this work, we study the planet formation process incorporating,and comparing, updated type I migration rates for non-isothermal discs and the role ofplanet?s luminosity over such rates. We find that the latter can have important effectson planetary evolution, producing a significant outward migration for the growingplanets.

El lugar del curriculum en la primera infancia: Aportes de una mirada comparada; The place of curriculum in early childhood education: Insights from a comparative approach Guevara, Jennifer Luciana; Cardini, Alejandra La atención y educación de la primera infancia (AEPI) se ha convertido en una prioridad para las políticas educativas en distintos países de la región y del mundo. Su importancia estuvo acompañada por una progresiva institucionalización de la provisión y un mayor desarrollo curricular. Sin embargo, en muchos países persiste un panorama fragmentado, en los que la AEPI es provista bajo diversos formatos por instituciones con distintas rectorías. El trabajo examina la interacción de los principales documentos curriculares de seis países y una jurisdicción con las características del mapa de provisión educativa en el que se insertan. Partiendo de una investigación de corte cualitativo, basada en el análisis documental y de fuentes secundarias, el artículo muestra que los instrumentos curriculares que regulan la AEPI poseen intenciones reguladoras que dialogan con los mapas de provisión. Para ello, se describen primero los instrumentos curriculares con foco en su intención reguladora, es decir, el tipo de transformaciones que promueven en el mapa de la provisión. Luego, se examina de qué manera las intenciones reguladoras aspiran o no a modificar la unidad-diferenciación de los mapas de provisión en los que se insertan. El artículo argumenta que en mapas heterogéneos y desiguales los instrumentos sectoriales tienen altas probabilidades de mantener y reforzar las diferenciaciones existentes. En estos contextos, la elaboración de instrumentos abarcadores o cohesionadores podría favorecer una mayor justicia educativa.; Early childhood care and education (ECCE) has become a priority in education policies within Latin America and across the globe. This has been paired with the progressive institutionalization of provision and the development of the curricula. However, a fragmented scenario prevails in most countries: ECCE is provided in a variety of formats and under the responsibility of different organisms and authorities. This article examines the interaction between the main curricular documents and the map of educational provision in which they are meant to regulate, in six different countries and one jurisdiction. This required a qualitative study which involved in-depth analysis of documents and secondary sources, and showed that curricular documents have diverse regulatory intents which dialogue with the maps of provision. Thus, this paper starts by describing the curricular documents and focusing on their regulatory intent, that is, the type of map transformations they promote. Secondly, it examines whether these intents aspire to modify the maps they are embedded in, in terms of unity-differentiation. The paper argues that in heterogeneous and unequal maps, there is a high probability that the documents will reinforce existing differences. In these contexts, comprehensive and cohesive documents could favor educational justice.

Emociones, Intervención Social y políticas sociales: la maternidad en la encrucijada; Emotions, Social Intervention and social policies: motherhood at the crossroads Boragnio, Aldana; Dettano, Andrea El presente trabajo es el producto de los puntos de encuentro entre nuestras investigaciones sobre las prácticas del comer en la oficina de trabajadoras estatales y las prácticas de consumo de las destinatarias de los Programas de Transferencias Condicionadas de Ingresos, ambas con recorte geográfico en la Ciudad de Buenos Aires. Desde dichos recorridos hemos identificado el modo en que las prácticas del comer y las prácticas de consumo se organizan en relación a emociones como el amor maternal, que se vinculan a estrategias de intervención estatal, que mediadas por el trabajo social, se han masificado en las sociedades latinoamericanas.En vista de aquello, el objetivo de este escrito es recuperar el modo en que el amor maternal organiza ciertas prácticas y cómo lo hace a partir de asumir -estas mujeres madres- un lugar de sacrificialidad, donde es siempre a partir de satisfacer a otros -los hijos- que se encuentra el disfrute y la satisfacción. Este recorrido se hará a partir de una estrategia de indagación cualitativa, utilizando entrevistas en profundidad. Se concluye que el amor maternal es una emoción que vehiculiza prácticas de cuidado que colocan a las mujeres madres en la vivencia de la abnegación y la culpa.; This paper is the product of the meeting points of our investigations about the eating practices in the office and the consumption practices from the recipients of the Conditional Cash Transfers, both in the City of Buenos Aires. From these, we have identified the emotions that are organized around motherhood and care practices, which are also linked to state intervention strategies that have become widespread in Latin American societies. The objective of this paper is to recover the way in which emotions linked to the care of sons and daughters organize certain practices marked by self-denial and sacrificiality, where it is always based on satisfying others -children- that You will find enjoyment and satisfaction. This tour will be based on a strategy of qualitative inquiry, using in-depth interviews. It is concluded that emotions linked to the care of children convey caring practices that place women mothers in the experience of self-denial and guilt.

Telomeropathies: Etiology, diagnosis, treatment and follow-up. Ethical and legal considerations Armando, Romina Gabriela; Mengual Gómez, Diego Luis; Maggio, Julián Francisco; Sanmartin, María Cecilia; Gomez, Daniel Eduardo Telomeropathies involve a wide variety of infrequent genetic diseases caused by mutations in the telomerase maintenance mechanism or the DNA damage response (DDR) system. They are considered a family of rare diseases that often share causes, molecular mechanisms and symptoms. Generally, these diseases are not diagnosed until the symptoms are advanced, diminishing the survival time of patients. Although several related syndromes may still be unrecognized this work describes those that are known, highlighting that because they are rare diseases, physicians should be trained in their early diagnosis. The etiology and diagnosis are discussed for each telomeropathy and the treatments when available, along with a new classification of this group of diseases. Ethical and legal issues related to this group of diseases are also considered.

La reforma en el régimen de adquisición de la nacionalidad argentina por naturalización Arlettaz, Fernando Emmanuel El artículo tiene tres partes. Primeramente, se hace un breve recorrido histórico sobre las reglas de naturalización en el derecho argentino. Luego, se estudia la reforma introducida por el decreto de necesidad y urgencia 30/2017 en el régimen de nacionalidad. Finalmente, se evalúa esa misma reforma desde la perspectiva constitucional y convencional.

Tercerización laboral en Argentina: Antecedentes, contexto regional y propuesta de regulación integral; Labor subcontracting in Argentina: Antecedents, regional context and integral regulation proposal; Terceirizagao do trabalho na Argentina: Antecedentes, contexto regional e proposta de regulagao integral Etchemendy, Sebastian; Gianibelli, Guillermo; Ottaviano, Juan Manuel Existe hoy en Argentina un cuerpo importante de estudios sobre el impacto de la tercerización laboral en distintos sectores de la economía y en los trabajadores. Sin embargo, los estudios realizados desde la sociología del trabajo, y los análisis y propuestas regulatorias realizadas desde ámbitos institucionales y jurídicos, han corrido por carriles separados. El objetivo principal de este estudio es complementar ambos enfoques. Tomando como insumo los análisis recientes desde la sociología laboral, que como dato central iluminan la heterogeneidad del fenómeno de la subcontratación, el artículo realiza una propuesta regulatoria que da cuenta de esa multiplicidad de situaciones en el mercado de trabajo, y apunta a contrarrestar los niveles de precarización que la tercerización laboral conlleva hoy para grandes masas de trabajadoras y trabajadores.; There is today in Argentina an important body of studies on the impact of labor subcontracting in different sectors of the economy and on workers. However, the studies carried out from the sociology of work, and the analyses and regulatory proposals made from the institutional and legal spheres, have run in sepárate lanes. The main goal of this study is to complement both approaches. Taking as input recent analyses from labor sociology, which illuminate the heterogeneity of the phenomenon of subcontracting as a key point, the article makes a regulatory proposal that accounts for this multiplicity of situations in the labor market, and aims to counteract the levels of precarization that labor outsourcing entails today for large masses of workers.; Existe hoje na Argentina um importante corpo de estudos sobre o impacto da terceirizaçao de trabalho em diferentes setores da economia e sobre os trabalhadores. No entanto, os estudos realizados a partir da sociologia do trabalho, e as análises e propostas normativas feitas a partir de esferas institucionais e legais, tem corrido emfaixas separadas. O principal objetivo deste estudo é complementar as duas abordagens. Tomando como base as análise srecentes da sociologia do trabalho, que como dados centrais iluminam a heterogeneidade do fenómeno da subcontrataçao, o artigo faz uma proposta regulatória que responde por essa multiplicidade de situaçoes no mercado de trabalho, e visa neutralizar os níveis de precarizaçao que a terceirizaçao de mao de obra envolve hoje para grandes massas de trabalhadores.

3D printing high-consistency enzymatic nanocellulose obtained from a soda-ethanol-O2 pine sawdust pulp Kangas, Heli; Felissia, Fernando Esteban; Filgueira, Daniel; Ehman, Nanci Vanesa; Vallejos, María Evangelina; Imlauer Vedoya, Camila María; Lahtinen, Panu; Area, Maria Cristina; Chinga Carrasco, Gary Soda-ethanol pulps, prepared from a forestry residue pine sawdust, were treated according to high-consistency enzymatic fibrillation technology to manufacture nanocellulose. The obtained nanocellulose was characterized and used as ink for three-dimensional (3D) printing of various structures. It was also tested for its moisture sorption capacity and cytotoxicity, as preliminary tests for evaluating its suitability for wound dressing and similar applications. During the high-consistency enzymatic treatment it was found that only the treatment of the O2-delignified pine pulp resulted in fibrillation into nano-scale. For 3D printing trials, the material needed to be fluidized further. By 3D printing, it was possible to fabricate various structures from the high-consistency enzymatic nanocellulose. However, the water sorption capacity of the structures was lower than previously seen with porous nanocellulose structures, indicating that further optimization of the material is needed. The material was found not to be cytotoxic, thus showing potential as material, e.g., for wound dressings and for printing tissue models.

La Educación Mediática en la Escuela Secundaria desde los diseños curriculares.; The Media Education in Secondary School from the curricular designs Saez, Virginia Este trabajo presenta un análisis cualitativo de la presencia de la Educación Mediática en los diseños curriculares de nivel secundario de la Provincia de Buenos Aires. El método utilizado fue el análisis socioeducativo del discurso. Entre los resultados se identifica la Educación Mediática como un contenido transversal de la Educación Secundaria y se reconocen cuatro razones para su inclusión: motivar los aprendizajes, adiestrar a los ciudadanos en estas formas comunicacionales, necesidad de entenderlos en tanto requisito para una ciudadanía democrática y aprender a producir contenidos mediáticos. Deja vacante un estudio que focalice en las propuestas que tengan como objeto los procesos de construcción de conocimiento diferenciales que habilitan las distintas tecnologías comunicacionales.; This paper presents a qualitative analysis of the presence of Media Education in the curricular designs of secondary level of the province of Buenos Aires. The method used was the analysis of socio-educational discourse. Among the results, identifies the Media Education as a cross-sectional content of Secondary Education and recognized four reasons for inclusion: To motivate learning, to train citizens in these forms communication, understand them in both requirement for democratic citizenship and learn to produce media contents. Vacates a study that focuses on the proposals which have as their object the processes of construction of knowledge spreads that enable the various communications technologies.

Memorias de la dictadura en el arte tecnológico: el Mundial de 1978; Memories of dictatorship in technological art: 1978 World Cup Martin, Nadia Soledad Este trabajo considera dos obras de arte tecnológico contemporáneo que recurren al Mundial de fútbol de 1978 disputado en Argentina como terreno de exploración estética y conceptual: Desiluciones Ópticas (2013), de Leo Nuñez y 1978-2003 (2003), de Carlos Trilnick. Para su análisis, se recuperan estudios sobre comunicación mediática en el contexto de la dictadura, con foco en la transmisión del evento deportivo; algunos antecedentes sobre las políticas de lamemoria en la Argentina; y algunos trazados contextuales sobre el vínculo (histórico y teórico) entre arte y memoria. Desde este cruce, se observa que estas dos producciones artístico-tecnológicas participan de procesos contemporáneos de memoria del pasado dictatorial, en los que es posible observar una relectura crítica, por un lado, del rol de la sociedad civil (de víctimainocente a agente responsable); y por el otro, del discurso de los medios de comunicación (y sus estrategias de manipulación y legitimación del régimen).; This paper accounts two works of contemporary technological art that considers 1978 World Cup played in Argentina as a territory for their aesthetic and conceptual exploration: Desiluciones Ópticas (2013), by Leo Núñez and 1978-2003 (2003), by Carlos Trilnick. For the analysis, there are some fields of knowledge wich are recoverred: some researchs on media communication in the context of dictatorship, with special attention to those which focuss on the transmission of the sporting event; some background on the policies of memory in Argentina; and some contextual itineraries on the relationship (historical and theoretical) between art and memory. From this intersection, it is observed that these two artistic-technological productions participate in contemporary memory processes about the dictatorial past, in which it is possible to recognize a critical rereading, on the one hand, of civil society's role (from innocent victim to responsible agent); and on the other hand, of media's discourse (their strategies of manipulation and legitimacy of the regime).

Genetic Assignment and Monitoring of Yellow Cardinals Dominguez, Marisol; Pizzarello, María Gimena; Atencio, Melina; Scardamaglia, Romina Clara; Mahler, Bettina The yellow cardinal (Gubernatrix cristata) is a passerine bird endemic to southern South America. At present, the species is threatened with extinction, in part because of the capture of wild birds to supply the illegal caged‐bird market. Previous genetic evidence supports the existence of 3 management units for the species in Argentina, where the largest populations are currently found. Our objectives were to guide the reintroduction of these animals to their respective management units by determining the origin of seized specimens from illegal trade using 2 molecular markers, mtDNA and microsatellites, and to monitor the success of the released birds through radio‐telemetry. We compared the performance of different molecular markers and assignment approaches to optimize a technique capable of assigning the origin of confiscated yellow cardinals in a reliable way. Five of 10 released radio‐tracked individuals were predated shortly after liberation; however, 3 were successful in finding a mate and starting reproductive activities. Individual success was independent of the time spent in captivity, the liberation with a partner, the settlement type (semi‐open or closed), and the maximum distance traveled from the point of release. Cardinals that survived had higher individual heterozygosity. Our findings contribute a robust genetic assignment technique to be used in future yellow cardinal seizures and identify factors that might improve subsequent releases.

Dispositional and situational factors at work: A validation of scales and examination of effects on job satisfaction; Factores disposicionales y situacionales en el trabajo: Validación de escalas y análisis de sus influencias sobre la satisfacción laboral Pujol Cols, Lucas Joan; Dabos, Guillermo Enrique Purpose – The purpose of this paper is to examine the psychometric properties of the Spanish version of the Core Self-Evaluations Scale (CSES) and the Brief Index of Affective Job Satisfaction (BIAJS) in terms of internal consistency and factor structure and to, subsequently, analyze the influence of a set of dispositional factors (namely, core self-evaluations, CSEs) and situational factors (namely, psychosocial factors) on job satisfaction. Design/methodology/approach – In total, 209 academics from an Argentinian university completed online surveys at two stages, separated in time, to reduce the common method bias. Findings – The Spanish version of the CSES and the BIAJS showed acceptable psychometric properties, which were similar to those previously reported in North-American, European and Asian settings. Hierarchical regression analyses revealed that both situational and dispositional factors are significant predictors of job satisfaction. Research limitations/implications – The CSES and the BIAJS seem to be valid and reliable instruments for assessing CSEs and job satisfaction, respectively, in Latin America. The adoption of an interactionist approach that includes both situational and dispositional factors is crucial in future research examining job satisfaction. Practical implications – Managers should carefully evaluate the personality traits of candidates during personnel selection, as well as the working conditions they offer to their employees, since both factors seem to affect job satisfaction. Originality/value – This paper contributes to the validation of two scales that may promote future organizational behavior/psychology research in Latin America. In addition, it provides empirical evidence on the relative influence of a set of situational and dispositional factors on job satisfaction, thus contributing to the resolution of the person-situation debate.; Objetivos – El objetivo de este estudio es examinar las propiedades psicométricas de las versiones en español de la Escala de Autoevaluaciones Esenciales (CSES) y el Índice Breve de Satisfacción Laboral Afectiva (BIAJS) en cuanto a su consistencia interna y estructura factorial y, posteriormente, analizar la influencia relativa de ciertos factores disposicionales (autoevaluaciones esenciales) y situacionales (factores psicosociales) sobre la satisfacción laboral. Metodología – 209 académicos de una universidad argentina completaron cuestionarios en dos etapas, separadas en el tiempo, para reducir la varianza por uso de método común. Resultados – Las versiones en español de la CSES y el BIAJS poseen propiedades psicométricas similares a las reportadas previamente en contextos no hispano-parlantes. Los análisis de regresiones múltiples jerárquicas revelan que tanto los factores situacionales como los disposicionales constituyen predictores significativos de la satisfacción laboral. Implicancias para la investigación – La CSES y el BIAJS parecen ser instrumentos válidos y confiables para medir las autoevaluaciones esenciales y la satisfacción laboral en el ámbito latinoamericano. La inclusión simultánea tanto de factores situacionales como disposicionales resulta esencial en futuras investigaciones que examinen la satisfacción laboral. Implicancias para la práctica – Los directivos deberían evaluar cuidadosamente los rasgos de personalidad de los candidatos en los procesos de selección de personal, así como también las condiciones laborales tendientes a reducir los riesgos psicosociales, ya que ambos factores condicionan la satisfacción laboral. Originalidad – Este artículo contribuye a la validación, en el ámbito latinoamericano, de dos escalas de gran utilidad para la Psicología Laboral y el Comportamiento Organizacional. Además, aporta evidencia empírica sobre la influencia relativa de un conjunto comprehensivo de factores situacionales y disposicionales sobre la satisfacción laboral, contribuyendo a la resolución del controversial debate individuo-situación.

Cartografía de cambios de usos del suelo. Elaboración y análisis basado en sistemas de información geográfica; Cartography of changes of uses of the land. Develoment and analysis based on geographical information systems Humacata, Luis Miguel; Buzai, Gustavo Daniel; Lara, Bruno Daniel Este artículo presenta procedimientos metodológicos para la realización de cartografía de cambios de los usos del suelo con Sistemas de Información Geográfica (SIG). Las características técnicas de la base de datos geográfica se presentan a partir de imágenes satelitales, creación de mapas de usos del suelo y su tratamiento mediante la tabulación cruzada en representación raster. El área de estudio son tres municipios del Gran Buenos Aires en el período 2000-2010. Los resultados cartográficos y estadísticos representan una contribución de gran utilidad para el diagnóstico de la dinámica espacial.; This article presents methodological procedures for carrying out land-use change cartography with Geographical Information Systems (GIS). The technical characteristics of the geographical database are presented from satellite images, creation of land-uses maps and their treatment through cross tabulation in raster representation. The study area includes three municipalities of Greater Buenos Aires in the period 2000-2010.The cartographic and statistical results represent a very useful contribution for the diagnosis of spatial dynamics.

Alkaloids Purified from Aristotelia chilensis Inhibit the Human α3β4 Nicotinic Acetylcholine Receptor with Higher Potencies Compared with the Human α4β2 and α7 Subtypes Arias, Hugo Rubén; Ortells, Marcelo Oscar; Feuerbach, Dominik; Burgos, Viviana; Paz, Cristian The alkaloids aristoteline (1), aristoquinoline (2), and aristone (3) were purified from the leaves of the Maqui tree Aristotelia chilensis and chemically characterized by NMR spectroscopy. The pharmacological activity of these natural compounds was evaluated on human (h) α3β4, α4β2, and α7 nicotinic acetylcholine receptors (AChRs) by Ca2+ influx measurements. The results suggest that these alkaloids do not have agonistic, but inhibitory, activity on each receptor subtype. The obtained IC50 values indicate the following receptor selectivity: hα3β4 > hα4β2 ≫ hα7. In the particular case of hα3β4 AChRs, 1 (0.40 ± 0.20 μM) and 2 (0.96 ± 0.38 μM) show higher potencies compared with 3 (167 ± 3 μM). Molecular docking and structure-activity relationship results indicate that ligand lipophilicity is important for the interaction with the luminal site located close to the cytoplasmic side of the hα3β4 ion channel between positions -2′ and -4′. Compound 1 could be used as a molecular scaffold for the development of more potent noncompetitive inhibitors with higher selectivity for the hα3β4 AChR that could serve for novel addiction and depression therapies.

Cartografía de cambios de usos del suelo: Elaboración y análisis basado en Sistemas de Información Geográfica; Cartography of Changes of Uses of the Land: Development and Analysis Based on Geographical Information Systems Humacata, Luis Miguel; Buzai, Gustavo Daniel; Lara, Bruno Daniel Este artículo presenta procedimientos metodológicos para la realización de cartografía de cambios de los usos del suelo con Sistemas de Información Geográfica (SIG). Las características técnicas de la base de datos geográfica se presentan a partir de imágenes satelitales, creación de mapas de usos del suelo y su tratamiento mediante la tabulación cruzada en representación raster. El área de estudio son tres municipios del Gran Buenos Aires en el período 2000-2010. Los resultados cartográficos y estadísticos representan una contribución de gran utilidad para el diagnóstico de la dinámica espacial.; This article presents methodological procedures for carrying out land-use change cartography with Geographical Information Systems (GIS). The technical characteristics of the geographical database are presented from satellite images, creation of land-uses maps and their treatment through cross tabulation in raster representation. The study area includes three municipalities of Greater Buenos Aires in the period 2000-2010.The cartographic and statistical results represent a very useful contribution for the diagnosis of spatial dynamics.

El "acompañamiento" de inmigrantes en situación irregular en el acceso a la administración pública; The "Accompaniment" of Inmigrants in Irregular Situation in Access to Public Administration Tevez, Emilio José; Dueñas Díaz, Sofía El artículo trata sobre las complejidades que experimentan inmigrantes en situación irregular durante el acceso al proceso de obtención de la residencia. Se visibiliza la dimensión educativa en el ámbito de la administración pública reconociendo los aprendizajes que se producen con el objetivo de reflexionar sobre la construcción de procedimientos que faciliten y garanticen el acceso de la ciudadanía. El abordaje se realizó a partir de un enfoque etnográfico mediante las técnicas de observación participante y entrevista, incorporando la sistematización de fuentes documentales. Los resultados indican que, a partir de la distinción entre disponibilidad y acceso, es posible diseñar políticas orientadas a la capacidad de generar condiciones de acceso tomando como ejemplo la modalidad de “acompañamiento”. A partir de ello, se plantea la importancia de pensar la dimensión educativa en el ámbito de la administración pública a fin de identificar obstáculos y elaborar estrategias para el acceso de la ciudadanía.; The article deals with the complexities experienced by migrants in an irregular situation during the access to the process of obtaining residency. In this way, the educational dimension in the field of public administration is made visible, recognizing the learning that takes place there. All this with the aim of discussing on the construction of procedures that facilitate and guarantee the access of citizens in state institutions. The approach was based on an ethnographic focus using the participant observation and interview techniques, of documentary sources was also incorporated. The results have shown, from the distinction between availability and access, its possible designing policies oriented to the capacity to generate access conditions, taking as an example the “accompaniment” modality. From this, the importance of thinking about the educational dimension in the field of public administration is raised in order to identify obstacles and develop strategies for the access of citizens.