Repensar la identidad artista-investigadora, desde el proyecto “Diálogos con mujeres artistas docentes”

The questioning of identity and the various roles that artists have begun to explore, from the last century, are fundamental aspects in this article. Today it is difficult to speak of the artist as individual isolated innate talent working in his studio, but the various social, political and cultural effects, have moved the artists to become part of the social world and to generate artistic practices that visualize and manifest critically these concerns. To explain these transits deeper, we will share part of the personal artistic practice and reflections, and how it has begun to intertwine with the doctoral research, through the art project “Dialogues with women art teachers”. From the experience as an artist and researcher in training, we will share what this project of artistic inquiry is about and reflect their points with the notion of `artistic practice as research´ developed by Graeme Sullivan (2010, 2011). On the other hand, we will seek to reflect how the identities of `artist´ and `academic´ are in constant dialogue. This art project seeks to show that these identities are not in a fixed position, but rather reflect, from the place of an artist, how through the various shifts in different disciplines, can conceive an identity ‘in-between’. The latter refers to the ability to understand the processes of being a woman, artist and researcher who travels and forms its identity among both disciplines.El cuestionamiento sobre la identidad y los diversos roles que los artistas han comenzado a explorar, desde el siglo pasado, son aspectos fundamentales en este artículo. Hoy es difícil seguir hablando del artista como individuo de talento innato que trabaja aislado en su taller, sino que los diversos efectos sociales, políticos y culturales, han trasladado a los artistas a ser parte del mundo social y a generar prácticas artísticas que visualicen y manifiesten críticamente estas preocupaciones. Para explicar estos tránsitos con mayor profundidad, se compartirá parte de la práctica y reflexión artística personal, y cómo ésta ha comenzado a entrelazarse con la investigación de tesis doctoral, a través del proyecto artístico “Diálogos con mujeres artistas docentes”. A partir de la experiencia como artista e investigadora en formación, se comparte en qué consiste el proyecto de indagación artística y se reflexiona sus puntos de encuentro con la noción de `práctica artística como investigación´ desarrollada por Graeme Sullivan (2010, 2011). Por otro lado, se buscará reflexionar cómo las identidades `artista´ y `académica´ están en un constante diálogo personal. Este proyecto artístico busca mostrar que estas identidades no están en un posicionamiento fijo, más bien reflexionar, desde el lugar de un artista, cómo a través de los diversos desplazamientos por diversas disciplinas, se puede concebir un tipo de identidad `in-between´. Esto último hace referencia a la posibilidad de comprender los procesos de ser mujer, artista e investigadora que transita y conforma su identidad entre ambas disciplinas

Impacto de depredadores y niveles de recursos sobre rasgos fisiológicos de Fissurella crassa (Archeogastropoda

Indexación: Web of Science; RedalycThe effects of predators on the density of prey and their resources have been widely studied; however, there is little evidence on the effects of the predators in conjunction with the availability of resources on the traits of the prey, which could affect foraging activities. In this study, the physiological state and the escape response of the intertidal herbivore Fissurella crassa were evaluated in two sites which differ in terms of the abundance of its predator Heliaster helianthus. The results suggest that the escape response of F. crassa in the site with greater predator density and lower resource availability could require a better body condition that is compensated with increments in foraging. The results highlight the need to address the physiological perspective in community ecology in order to understand the interactions within these communities.Los efectos de los depredadores sobre la densidad de presas y sus recursos ha sido ampliamente estudiado, sin embargo existe escasa evidencia sobre los efectos de los depredadores en combinación con la disponibilidad de recursos relacionados con los rasgos de las presas que pueden afectar la actividad de forrajeo. En este estudio se evaluó el estado fisiológico y la respuesta de escape del herbívoro intermareal Fissurella crassa en dos sitios con diferencias en la abundancia de su depredador Heliaster helianthus. Los resultados sugieren que la respuesta de escape de F. crassa en el sitio de mayor densidad del depredador y baja disponibilidad de recursos, podría requerir una mejor condición corporal que se compensé con un incremento en el forrajeo. Los resultados destacan la necesidad de abordar la perspectiva fisiológica en ecología de comunidades para entender mejor las interacciones dentro de estas comunidades.http://www.redalyc.org/articulo.oa?id=5784430400

El lugar del no saber en la enseñanza de las artes visuales

This paper reflects the importance of the not knowing as a necessary knowledge to be and do in teaching. A way of being in the classroom and of positioning oneself as teachers that allows the practice of error, uncertainty, fragility and vulnerability to pedagogical situations that enrich teaching, because they allow learning to occur from the place of surprise, research and mediation, where the others take a fundamental place. Through various accounts of the participants of this study, four ways of understanding the not knowing in the teaching of the visual arts are reflected, as they show a way of teaching that is linked to the political subjectivity of knowledge.

Depredación e impacto antropogénico sobre la estructura comunitaria de playas de bolones

Predator impacts on intertidal community structure have been studied for rocky platforms, but intertidal boulder fields, a habitat with a greater extension and heterogeneity, have not yet been considered. Keeping in mind that disturbances are considered an important force in determining intertidal habitat diversity, the aims of this work were to describe and quantify boulder field community structure and to assess boulder field community dynamics by proposing possible food webs, taking into consideration predatory and anthropogenic impacts. These aims were achieved by installing predator-exclusion cages outfitted with rocks that were monitored monthly over one year in two study zones, a Management and Exploitation Area for Benthic Resources (MEABR, Playa Chica) and open-access area (OAA, Playa Grande). For both study zones, juveniles were the dominant observed ontogenetic state and invertebrate richness and density were higher inside exclusion cages. Furthermore, the MEABR had a differentiated impact on community structure and dynamics in comparison with the OAA. In conclusion, the roles played by boulder fields in intertidal diversity, especially in recruitment and as a nursery zone, are important to consider in management plans.El impacto depredador sobre la estructura comunitaria intermareal ha sido estudiado para plataformas rocosas, pero no ha sido abordado en campos de bolones intermareales, un hábitat de mayor extensión y heterogeneidad. Considerando que las perturbaciones son una fuerza importante en determinar la diversidad del hábitat intermareal, los objetivos de este trabajo fueron describir y cuantificar la estructura comunitaria de campos de bolones, y evaluar la dinámica comunitaria de este hábitat proponiendo posibles tramas tróficas; considerando el impacto de depredadores y antropogénico. Estos objetivos se lograron mediante la instalación de jaulas de exclusión de depredadores equipadas con rocas, que fueron monitoreadas mensualmente durante un año en dos zonas de estudio, un Área de Manejo y Exclusión de Recursos Bentónicos (AMERB, Playa Chica) y un área de acceso abierto (AAA, Playa Grande). Para ambas zonas de estudio, los juveniles fueron el estado ontogenético dominante, y la riqueza y densidad de invertebrados fueron mayores dentro de las jaulas de exclusión. Además, el AMERB tuvo un impacto diferenciado sobre la estructura y dinámica comunitaria comparado al AAA. En conclusión, el rol que cumplen los campos de bolones en la diversidad intermareal, especialmente en el reclutamiento y área de crianza, son importantes y debiesen ser considerados en los planes de manejo

Repensando nuestros posicionamientos como profesoras de arte dentro de un escenario de cambios

This article rescues some ideas that for us, as art teachers, are relevant when facing the art teaching in the current Chilean education. These ideas emerge from some of the contributions share during the seminar "Dialogues between art education and the challenges of the XXI century", developed in July 2014 in Santiago, Chile. This meeting allowed us to dialogue and reflect, based on the stories and experiences of the academics that participated as speakers, how art education has been influenced by the new social, cultural, political and economic challenges which face the current situation in Chile in recent years. From here we rescue the notion of positioning and the postmodern perspective as main elementsto rethink the challenges of art education and the role of teachers in this labor.We conceived the notion of "positioning" as an element that can acquire a new sense from the post-structuralism stance and give another value to the educational practices of arts, allowing us to question and reflect our own roles as art teachers and some of the artistic discourses that are shared with the students in the educational process. Hence, we proposed to think our teaching task from a fluctuating position and constantly moves, where there is not only one way to be teachers, or one way to do or conform pedagogical relationships, with the intention to think others spaces and possibilities that allow students to reposition in the center of educational action from the significance of their own experiences.

Constrained instantons and kink-antikink collisions

We show that constrained $CP^1$ instantons, combined with the Relativistic Moduli Space approach, can accurately describe kink-antikink collisions in the $\phi^4$ model.Comment: 8 pages, 5 figure

Multikink scattering in the ϕ6 model revisited

Antikink-kink (KK) collisions in the ¯ ϕ6 model exhibit resonant scattering although the ϕ6 kinks do not support any bound states to which energy could be transferred. In P. Dorey et al. [Kink-Antikink Collisions in the ϕ6 Model, Phys. Rev. Lett. 107, 091602 (2011)] it was conjectured that, instead, energy is transferred to a collective bound mode of the full KK configuration. Here we present further strong evidence for this ¯ conjecture. Further, we construct a collective coordinate model (CCM) for KK scattering based on this ¯ collective bound mode trapped between the KK pair which allows us to reproduce the full dynamics of ¯ KK¯ scattering with striking accuracy. We also study kink-antikink (KK) scattering and its description by a ¯ CCM. In this case a significant role of radiation is discovered

Host-parasite dialogue: fecundity compensation mechanisms of Fissurella crassa

Parasites can alter the reproductive performance of their hosts, and to avoid or mitigate the resulting fitness loss, hosts may increase their current reproductive output to compensate for the future loss due to the parasitic infection. Fecundity compensation can be exploited by parasites for their own transmission (exploitation of host compensatory responses by parasites). However, this phenomenon has rarely been reported in second intermediate hosts of trematodes and its mechanisms and consequences largely unexplored. Along the east coast of the South Pacific, the second intermediate host, the mollusk Fissurella crassa, has been observed to display higher muscular foot, greater shell length and weight, and a higher gonadosomatic index when parasitized by metacercariaes of Proctoeces humboldti compared to non-parasitized hosts. In this study, we examined the histology, biochemistry (glucose, lipids, and proteins), and levels of sex hormones (estradiol and progesterone) in both parasitized and non-parasitized female individuals of F. crassa. Our findings revealed that the gonad of parasitized limpets had a higher density of oocytes, but these had a smaller individual area. Additionally, the gonadal tissue of parasitized limpets exhibited lower glucose content but higher lipid content. Notably, the levels of progesterone increased with parasite intensity. These results suggest that F. crassa possesses the ability to compensate for the negative effects of parasites by increasing the number of oocytes through biochemical and hormonal mechanisms. Our study contributes to the limited research on the impact of metacercariae on the reproduction of second intermediate hosts. Furthermore, we discuss how these changes in parasitized limpets could benefit parasite transmission