The innermost regions of the jet in NRAO 150. Wobbling or internal rotation?

NRAO 150 is a very bright millimeter to radio quasar at redshift $z$=1.52 for which ultra-high-resolution VLBI monitoring has revealed a counter-clockwise jet-position-angle wobbling at an angular speed $\sim11^{\circ}$/yr in the innermost regions of the jet. In this paper we present new total and linearly polarized VLBA images at 43 GHz extending previous studies to cover the evolution of the jet in NRAO 150 between 2006 and early 2009. We propose a new scenario to explain the counter-clockwise rotation of the jet position angle based on a helical motion of the components in a jet viewed faced-on. This alternative scenario is compatible with the interpretation suggested in previous works once the indetermination of the absolute position of the self-calibrated VLBI images is taken into account. Fitting of the jet components motion to a simple internal rotation kinematical model shows that this scenario is a likely alternative explanation for the behavior of the innermost regions in the jet of NRAO 150.Comment: 5 pages, 4 figures, Presented in 'The Innermost Regions of Relativistic Jets and Their Magnetic Fields' conference. Granada, Spain, 201

MAPCAT: Monitoring AGN with Polarimetry at the Calar Alto Telescopes

We introduce MAPCAT, a long-term observing program for "Monitoring of AGN with Polarimetry at the Calar Alto Telescopes". Multi-spectral-range studies are critical to understand some of the most relevant current problems of high energy astrophysics of blazars such as their high energy emission mechanisms and the location of their gamma-ray emission region through event associations across the spectrum. Adding multi-spectral-range polarimetry allows for even more reliable identification of polarized flares across the spectrum in these kind of objects, as well as for more accurate modeling of their magnetic field. As part of a major international effort to study the long term multi-spectral range polarimetric behavior of blazars, MAPCAT uses -since mid 2007- CAFOS on the 2.2m Telescope at the Calar Alto Observatory (Almeria, Spain) to obtain monthly optical (R-band) photo-polarimetric measurements of a sample of 34 of the brightest gamma-ray, optical, and radio-millimeter blazars accessible from the northern hemisphere.Comment: To be published in the proceedings of High Energy Phenomena in Relativistic Outflows III (HEPRO III, IJMPCS). 4 page

Nomad window

“Ventana nómada” es una búsqueda por el hogar y el encuentro con la imposibilidad por habitarlo. El sentirse sumergido en un limbo indefinido, ni aquí, ni allá, en ambos y en ninguno; una construcción del recuerdo desde lo ajeno, que se transforma en algo propio desde la mirada."Nomad window" is a search for home and the encounter with the impossibility of inhabiting it. Feeling submerged in an indefinite limbo, neither here nor there, in both and neither; a construction of memory from the windows of others, which I turn into something of my own from the gaze.Maestro (a) en Artes VisualesPregrad

Salud mental en mujeres jóvenes deportistas de élite

Trabajo fin de grado en EnfermeríaLa salud mental es un elemento básico en el rendimiento deportivo de los atletas, quienes, debido a la multitud de componentes estresores con los que conviven, representan un grupo poblacional que supera un 30% de prevalencia de trastornos mentales. Ser joven y ser mujer multiplica hasta 1.3 veces el riesgo a padecer uno de estos. Objetivo: Examinar los factores condicionantes de la salud mental de las jóvenes deportistas residentes en nuestro país. Método: Se presenta un estudio descriptivo transversal que tiene como muestra 200 atletas jóvenes residentes en Centros de Alto Rendimiento dependientes del Centro Superior de Deportes de nuestro país. Por medio del General Health Questionnaire GHC-12 y la escala SWLS, se valorará la morbilidad psicológica y la satisfacción personal con la vida de las atletas (medidores de la salud mental). Con el resto de preguntas y el cuestionario de apoyo social funcional de Duke-UNC se podrá estudiar como afectan los diferentes factores específicos del deporte femenino a la salud mental de estas.Mental health is a basic element in the sport performance of athletes, who, due to the multitude of stressful components with which they live, represent a population group that exceeds a 30% of prevelance in mental disorders. Being young and being a woman multiplies up to 1.3 times the risk of suffering one of these. Objective: To examine the conditioning factors of the mental health of young women athletes residing in our country. Method: A cross-sectional descriptive study is presented with a sample of 200 young athletes residing in High Performance Centers that depend on the Superior Sports Center of our country. Through the General Health Questionnaire GHC-12 and the SWLS scale, the psychological morbidity and personal satisfaction with life of the athletes (mental health measures) will be assessed. With the rest of the questions and the Duke-UNC Functional Social Support questionnaire, it will be possible to study how the different specific factors of female sports affect the mental health of these women

Prácticas parentales e inflexibilidad psicológica en adolescentes de Lima Metropolitana

El presente estudio tuvo como objetivo determinar la relación entre las prácticas parentales maternas y paternas con la inflexibilidad psicológica en adolescentes. La muestra estuvo conformada por 406 estudiantes de secundaria (55.2% mujeres y 44.8% varones) de 12 a 18 años, pertenecientes a dos instituciones educativas públicas de Lima Metropolitana y que al momento de la evaluación refirieron vivir con al menos uno de sus padres. Se utilizó la Escala de Prácticas Parentales para Adolescentes (Andrade y Betancourt, 2008) y el Cuestionario de Evitación y Fusión para Jóvenes (Valdivia-Salas et al., 2016). La evidencia de validez estructural y confiabilidad de ambas pruebas coincidieron con estudios previos y resultaron apropiadas. Se hallaron diferencias en el control conductual materno y la inflexibilidad psicológica entre hombres y mujeres, mas no según el grupo de edad. Las prácticas parentales estudiadas se relacionaron con la inflexibilidad psicológica de la forma esperada; sin embargo, las correlaciones fueron más fuertes en el caso de las adolescentes y respecto a las prácticas parentales maternas. Se concluye que una mayor percepción de imposición y control psicológico parental por parte de los adolescentes se relaciona con mayores niveles de inflexibilidad psicológica

A multi-wavelength polarimetric study of the blazar CTA 102 during A gamma-ray flare in 2012

Casadio, Carolina et. al.We perform a multi-wavelength polarimetric study of the quasar CTA 102 during an extraordinarily bright γ-ray outburst detected by the Fermi Large Area Telescope in 2012 September-October when the source reached a flux of F = 5.2 ± 0.4 × 10 photons cm s. At the same time, the source displayed an unprecedented optical and near-infrared (near-IR) outburst. We study the evolution of the parsec-scale jet with ultra-high angular resolution through a sequence of 80 total and polarized intensity Very Long Baseline Array images at 43 GHz, covering the observing period from 2007 June to 2014 June. We find that the γ-ray outburst is coincident with flares at all the other frequencies and is related to the passage of a new superluminal knot through the radio core. The powerful γ-ray emission is associated with a change in direction of the jet, which became oriented more closely to our line of sight (θ ∼ 1.°2) during the ejection of the knot and the γ-ray outburst. During the flare, the optical polarized emission displays intra-day variability and a clear clockwise rotation of electric vector position angles (EVPAs), which we associate with the path followed by the knot as it moves along helical magnetic field lines, although a random walk of the EVPA caused by a turbulent magnetic field cannot be ruled out. We locate the γ-ray outburst a short distance downstream of the radio core, parsecs from the black hole. This suggests that synchrotron self-Compton scattering of NIR to ultraviolet photons is the probable mechanism for the γ-ray production.This research has been supported by the Spanish Ministry of Economy and Competitiveness (MINECO) grant AYA2013-40825-P. The research at Boston University (BU) was funded in part by NASA Fermi Guest Investigator grants NNX14AQ58G and NNX13AO99G, and Swift Guest Investigator grant NNX14AI96G. I. A. acknowledges support by a Ramon y Cajal grant of the MINECO. The VLBA is operated by the National Radio Astronomy Observatory. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. The PRISM camera at Lowell Observatory was developed by K. Janes et al. at BU and Lowell Observatory, with funding from the NSF, BU, and Lowell Observatory. St. Petersburg University team acknowledges support from Russian RFBR grant 15-02-00949 and St. Petersburg University research grant 6.38.335.2015. This research was conducted in part using the Mimir instrument, jointly developed at Boston University and Lowell Observatory and supported by NASA, NSF, and the W.M. Keck Foundation. The Mimir observations were performed by Lauren Cashman, Jordan Montgomery, and Dan Clemens, all from Boston University. This research is partly based on data taken at the IRAM 30 m Telescope. IRAM is supported by INSU/CNRS (France), MPG (Germany), and IGN (Spain). The Submillimeter Array is a joint project between the Smithsonian Astrophysical Observatory and the Academia Sinica Institute of Astronomy and Astrophysics and is funded by the Smithsonian Institution and the Academia Sinica. Data from the Steward Observatory spectropolarimetric monitoring project were used. This program is supported by Fermi Guest Investigator grants NNX08AW56G, NNX09AU10G, and NNX12AO93G. The Metsahovi team acknowledges the support from the Academy of Finland to our observing projects (numbers 212656, 210338, 121148, and others).Peer Reviewe

Investigación y arte : La tesis de grado en Plástica en la FBA

A partir del marco epistémico que comprende a la producción artística como capaz de tener una carga de conocimiento, se analiza la transformación de las tesis de grado en Artes Plásticas de la Facultad de Bellas Artes (FBA), Universidad Nacional de La Plata (UNLP). Este cambio realizado entre los años 2011 y 2012, que reduce el número de páginas de 30 a 5, genera un distanciamiento de la mirada tradicional del conocimiento, con un eje discursivo y logocéntrico, y se aproxima a una concepción de conocimiento construido a partir de investigaciones en arte, cuyo eje es experiencial y hermenéutico. Para ello, se toman tres estudios de caso de tres graduados de Plástica, y se separan y se observan las diferencias reales entre una tesis de Plástica y una tesis de Historia del Arte.From the epistemic framework that understands the art production as one which is capable of having knowledge, the transformation of the theses on Plastic Arts of the Facultad de Bellas Artes (FBA), Universidad Nacional de La Plata (UNLP) is analyzed. This change, which took place between 2011 and 2012 and in which the number of pages is reduced from 30 to 5, creates distance from the traditional point of view of knowledge, with a discursive and logocentric focus, and approximates a concept of knowledge built from the research in art, which focus is experiential and hermeneutical. With this aim, three study cases from three graduates in Plastic Arts are taken into account and the real differences between a thesis on Plastic Arts and one on History of Art are separated and analyzed.Facultad de Bellas Arte

Arte y conocimiento en las tesis de artes plásticas de la Facultad de Bellas Artes, Universidad Nacional de La Plata : Una mirada desde la teoría de la IBA sobre las tesis expuestas en la muestra Casa del Programa Registro Activo

Hasta no hace mucho, los proyectos de investigación docente de arte eran juzgados y evaluados con los parámetros de otras disciplinas y muchas veces un físico se encontraba diagnosticando a un artista plástico, exigiéndole verificación, contrastación, objetividad, en fin, ‘resultados científicos’ en su producción. Pero el arte es otra cosa, es conocimiento plasmado, es cognitivo, es racional pero no es discursivo, no suma al logocentrismo imperante, ya que la obra de arte hace hablar a la realidad, pero no con palabras. Los artistas realizan una indagación, una exploración, es decir, una investigación para realizar la obra, aunque no haya una investigación científica que siga un método dado.Eje temático 1: Perspectivas teóricas y metodológicas.Facultad de Bellas Arte

Investigación y arte : La tesis de grado en Plástica en la FBA

A partir del marco epistémico que comprende a la producción artística como capaz de tener una carga de conocimiento, se analiza la transformación de las tesis de grado en Artes Plásticas de la Facultad de Bellas Artes (FBA), Universidad Nacional de La Plata (UNLP). Este cambio realizado entre los años 2011 y 2012, que reduce el número de páginas de 30 a 5, genera un distanciamiento de la mirada tradicional del conocimiento, con un eje discursivo y logocéntrico, y se aproxima a una concepción de conocimiento construido a partir de investigaciones en arte, cuyo eje es experiencial y hermenéutico. Para ello, se toman tres estudios de caso de tres graduados de Plástica, y se separan y se observan las diferencias reales entre una tesis de Plástica y una tesis de Historia del Arte.From the epistemic framework that understands the art production as one which is capable of having knowledge, the transformation of the theses on Plastic Arts of the Facultad de Bellas Artes (FBA), Universidad Nacional de La Plata (UNLP) is analyzed. This change, which took place between 2011 and 2012 and in which the number of pages is reduced from 30 to 5, creates distance from the traditional point of view of knowledge, with a discursive and logocentric focus, and approximates a concept of knowledge built from the research in art, which focus is experiential and hermeneutical. With this aim, three study cases from three graduates in Plastic Arts are taken into account and the real differences between a thesis on Plastic Arts and one on History of Art are separated and analyzed.Facultad de Bellas Arte