Entre la "flânerie" y el ostracismo: la resignificación subjetiva de la ciudad en Fabián Casas y Martín Gambarotta

Desde los estudios pioneros de Walter Benjamín dedicados a la imagen del flâneur en la poesía de Baudelaire, la experiencia del sujeto poético y su íntima reconstrucción afectiva de la ciudad constituyen un índice significativo para aproximarnos a la experiencia de la vida moderna. En este artículo, nos interesa revisar cuáles son las particularidades que distinguen esta experiencia en un corpus de poesía argentina reciente -los libros Punctum y Refrito, de Martín Gambarotta, y Horla City y otros, de Fabián Casas-, que durante las décadas de 1990 y 2000 tematiza, con insistencia y mediante opciones diversas, la relación sujeto-ciudad. En dichos textos, es posible releer una continuidad -relativamente canónicadel paseante por los márgenes periféricos de la modernidad -en el caso de Casas- y la reclusión voluntaria, como repliegue extremo ante la vivencia del deambular callejero, que se percibe como intimidante en Gambarotta.

La amistad cívica en Aristóteles: concordia y fraternidad

El artículo muestra la importancia de la amistad en el contexto de la filosofía política aristotélica. Esta importancia se verifica en su peso específico en comparación con la justicia, puesto que Aristóteles mismo sostiene que la amistad cívica es incluso un objetivo superior al de la búsqueda de la justicia. En concreto, el artículo se centra en la función de la concordia, como tipo especial de amistad cívica, en términos de conservación de la unidad y estabilidad de la polis. Para captar su significación, se plantea el papel de la concordia como complemento a la condición política del ser humano. La concordia es necesaria a la luz de la tendencia a la lucha entre las partes de la ciudad, entre el demos y los oligarcas. Puesto que esta lucha pone en peligro la continuidad de la polis, la concordia entre ciudadanos se convierte en un antecedente privilegiado del principio de fraternidad republicana, el cual todavía no ha gozado de una atención suficiente en el campo de la historia de la filosofía política.

La música práctica en san Agustín: "vestigium" y "signum"

En distintos momentos de su producción intelectual, Agustín se refirió al asunto de la música. En este artículo mostraremos que Agustín uso dos esquemas conceptuales distintos para describir el fenómeno de la música práctica en su relación con el mundo espiritual, el esquema de las Artes Liberales y el de la teoría del signo, y que en virtud de ello la música sería concebida de dos modos diferentes: como vestigium y como signum del mundo espiritual, respectivamente. Al final del artículo analizaremos la diferencia entre las dos concepciones considerando tres elementos: la naturaleza de la relación entre mundo material y espiritual, el contenido espiritual al que remite y la noción de belleza que implica.

El "Fedro" de Platón: un ejercicio de buena retórica engañosa

En este artículo me propongo mostrar que lo que Sócrates hace con Fedro a lo largo de toda la obra no es otra cosa que utilizar la auténtica retórica (con su doble carga, dialéctica y psicológica) que es descrita en la segunda parte del diálogo. Las tensiones, rivalidades y celos de la situación inicial entre ellos expone un perfil representativo de relaciones entre interlocutores con perspectivas intelectuales opuestas. Es preciso disolver la resistencia emocional por medio de una serie de pasos graduales, estratégicos, y ‘engañosos’ (no se puede develar el propio juego desde el principio). Hay que partir de acuerdos, siquiera parciales, para continuar dialogando. Sin embargo, Sócrates también introduce nociones nuevas acerca del amor, pero éstas pasan desapercibidas a un Fedro obsesionado con la imitación de su enamorado Lisias. Hasta que Sócrates decide cortar el juego y cruzar el río. Este corte provoca un giro en ambos personajes: Fedro se dispone a escuchar lo que Sócrates quiere contarle (el mito del carro alado) y Sócrates se revela ante sí mismo como un personaje capaz de ‘encantar’ a Fedro con la belleza rapsódica del relato y superar su propio temor de convertirse en una bestia devoradora. Al final Sócrates muestra su juego a Fedro y le enseña cómo ha sido posible llegar a un auténtico diálogo filosófico, donde pueda tener lugar la enseñanza y el aprendizaje recíprocos.

Periferias urbanas: retrato del extrarradio barcelonés en las novelas de Javier Pérez Andújar

Javier Pérez Andújar, a través de su propia memoria, crea en Los príncipes valientes (2007) y Paseos con mi madre (2011) un retrato detallado del extrarradio barcelonés. En ambas novelas, el autor combina diferentes elementos: la memoria oral, la metaliteratura, la crónica y la cultura popular. De este modo narra la historia de tres generaciones ubicadas en las afueras de la ciudad. El presente artículo centra su análisis, basándose en una contextualización histórica, en la configuración del espacio y el estudio de las características morfológicas y sociales propias de los extrarradios. Con ello se pretende demostrar la significación histórica y social del extrarradio en la historia contemporánea de Barcelona.

Uso del arte y de la creatividad en las terapias psicosociales. Estudio y valoración de resultados de la utilización de la fotografía con pacientes con un trastorno grave y crónico

This article will reveal the experiment and the subsequent investigation work carried out with patients having chronic and severe mental illness at the Creativity and Rehabilitation Workshop of the Mental Health Service at the Health Department no. 12 of the Hospital Francisco de Borja of Gandia, Spain. The course focuses on patient training in the use of photography and image as a means of expression and as a part of psychosocial therapies to improve patients’ quality of life in front of the society. In addition, it tries to enhance the analytic capacity of the patient not only with regards to the photography aesthetically, but also personally. There are many international scientific surveys backing up the knowledge and use of Artistic and Creative Therapy in chronic patients; however, these activities are seen as pioneering actions in Spain given the current health structure, which includes few national psychiatric centers developing them continuously and being temporally monitored. This experiment demonstrates that photography significantly improves the quality of life of chronic patients and motivates them socially to communicate themselves through art, just as it helps them using creativity as a tool for social action.

Approaches of the Action Art in early childhood Education. Some other ways of interrelation within the educational system

This Artistic research project was created in order to test how to put into practice approaches between Contemporary Art and University daily life. In this particular case, between Action Art and the students at the Early Childhood Education University in Alicante. The generalized lack of awareness about changes which took place in Art in the XX century, demonstrates the lack of interest on the part of students about Contemporary Art, and therefore, it is still remarkable, the distance between Art and life. Thus, as artists and teachers, the chance to carry out specific experiments is open within everyday educational life. Therefore, through Action Art a communicative interaction is possible to be achieved as an active learning process and, in such way, change the usual existing relationships in a predetermine context, creating this way, future Contemporary Art consumers and transmitters.

Los primeros pasos en el escorzo de la figura humana. "Un análisis desde la geometría"

A través de un recorrido histórico centrado en el Renacimiento, se exponen las aportaciones más significativas de teóricos y artistas en la evolución del escorzo de la figura humana desde un punto de vista geométrico. Los artistas que con sus dibujos y escritos ayudaban a otros en el aprendizaje de la representación, se apresuraron a incluir el estudio del escorzo en sus tratados, buscando métodos que facilitaran su dibujo sobre cualquier soporte y en cualquier posición en el espacio. En este artículo se analizan y enlazan los trazados propuestos por los estudiosos de la geometría, con las obras de arte que reflejan importantes avances en este sentido. Soportes como el lienzo, el muro o la bóveda, presentan al pintor superficies diferentes de trabajo y en distintas posiciones en el espacio. La figura humana, protagonista en la escena, tendrá que adaptarse a ellos para ser contemplada desde unos espacios arquitectónicos cada vez más amplios y con más posibilidades. Fue necesario dominar la perspectiva en la pintura, y muy particularmente en la mural, para ofrecer composiciones cada día más ambiciosas y sorprendentes.

The lipopolysaccharide core of Brucella abortus acts as a shield against innate immunity recognition

Innate immunity recognizes bacterial molecules bearing pathogen-associated molecular patterns to launch inflammatory responses leading to the activation of adaptive immunity. However, the lipopolysaccharide (LPS) of the gram-negative bacterium Brucella lacks a marked pathogen-associated molecular pattern, and it has been postulated that this delays the development of immunity, creating a gap that is critical for the bacterium to reach the intracellular replicative niche. We found that a B. abortus mutant in the wadC gene displayed a disrupted LPS core while keeping both the LPS O-polysaccharide and lipid A. In mice, the wadC mutant induced proinflammatory responses and was attenuated. In addition, it was sensitive to killing by non-immune serum and bactericidal peptides and did not multiply in dendritic cells being targeted to lysosomal compartments. In contrast to wild type B. abortus, the wadC mutant induced dendritic cell maturation and secretion of pro-inflammatory cytokines. All these properties were reproduced by the wadC mutant purified LPS in a TLR4-dependent manner. Moreover, the core-mutated LPS displayed an increased binding to MD-2, the TLR4 co-receptor leading to subsequent increase in intracellular signaling. Here we show that Brucella escapes recognition in early stages of infection by expressing a shield against recognition by innate immunity in its LPS core and identify a novel virulence mechanism in intracellular pathogenic gram-negative bacteria. These results also encourage for an improvement in the generation of novel bacterial vaccines.

Effects of sintering temperature on morphology and mechanical characteristics of 3D printed porous titanium used as dental implant

Porous titanium samples were manufactured using the 3D printing and sintering method in order to determine the effects of final sintering temperature on morphology and mechanical properties. Cylindrical samples were printed and split into groups according to a final sintering temperature (FST). Irregular geometry samples were also printed and split into groups according to their FST. The cylindrical samples were used to determine part shrinkage, in compressive tests to provide stress-strain data, in microCT scans to provide internal morphology data and for optical microscopy to determine surface morphology. All of the samples were used in microhardness testing to establish the hardness. Below 1100 C FST, shrinkage was in the region of 20% but increased to approximately 30% by a FST of 1300 C. Porosity varied from a maximum of approximately 65% at the surface to the region of 30% internally. Between 97 and 99% of the internal porosity is interconnected. Average pore size varied between 24 µm at the surface and 19 µm internally. Sample hardness increased to in excess of 300 HV0.05 with increasing FST while samples with an FST of below 1250 C produced an elastic-brittle stress/strain curve and samples above this displayed elastic-plastic behaviour. Yield strength increased significantly through the range of sintering temperatures while the Young's modulus remained fairly consistent. © 2013 Elsevier B.V.

Control of biofilm growth through photodynamic treatments combined with chemical inhibitors: in vitro evaluation methods

The rock/atmosphere interface is inhabited by a complex microbial community including bacteria, algae and fungi. These communities are prominent biodeterioration agents and remarkably influence the status of stone monuments and buildings. Deeper comprehension of natural biodeterioration processes on stone surfaces has brought about a concept of complex microbial communities referred to as "subaerial biofilms". The practical implications of biofilm formation are that control strategies must be devised both for testing the susceptibility of the organisms within the biofilm and treating the established biofilm. Model multi-species biofilms associated with mineral surfaces that are frequently refractory to conventional treatment have been used as test targets. A combination of scanning microscopy with image analysis was applied along with traditional cultivation methods and fluorescent activity stains. Such a polyphasic approach allowed a comprehensive quantitative evaluation of the biofilm status and development. Effective treatment strategies incorporating chemical and physical agents have been demonstrated to prevent biofilm growth in vitro. Model biofilm growth on inorganic support was significantly reduced by a combination of PDT and biocides

Commemorating Shakespeare in Performance: Betterton and Irving

An essay on a central question in performance historiography: whether excellence in acting is defined as imitation of great predecessor or a departure from the work of predecessors.

All the World's a Stage: Facilitating Discovery Science and Improved Cancer Care through the Global Alliance for Genomics and Health

The recent explosion of genetic and clinical data generated from tumor genome analysis presents an unparalleled opportunity to enhance our understanding of cancer, but this opportunity is compromised by the reluctance of many in the scientific community to share datasets and the lack of interoperability between different data platforms. The Global Alliance for Genomics and Health is addressing these barriers and challenges through a cooperative framework that encourages "team science" and responsible data sharing, complemented by the development of a series of application program interfaces that link different data platforms, thus breaking down traditional silos and liberating the data to enable new discoveries and ultimately benefit patients.

A novel TRNSYS type for short-term borehole heat exchanger simulation: B2G model

Models of ground source heat pump (GSHP) systems are used as an aid for the correct design and optimization of the system. For this purpose, it is necessary to develop models which correctly reproduce the dynamic thermal behavior of each component in a short-term basis. Since the borehole heat exchanger (BHE) is one of the main components, special attention should be paid to ensuring a good accuracy on the prediction of the short-term response of the boreholes. The BHE models found in literature which are suitable for short-term simulations usually present high computational costs. In this work, a novel TRNSYS type implementing a borehole-to-ground (B2G) model, developed for modeling the short-term dynamic performance of a BHE with low computational cost, is presented. The model has been validated against experimental data from a GSHP system located at Universitat Politècnica de València, Spain. Validation results show the ability of the model to reproduce the short-term behavior of the borehole, both for a step-test and under normal operating conditions.

A utilização do Facebook como um recurso complementar para a interação/produção escrita de alunos portugueses de Espanhol Língua Estrangeira (B1)

Relatório da Prática de Ensino Supervisionada, Ensino de Inglês e de Espanhol no 3º Ciclo do Ensino Básico e no Ensino Secundário, Universidade de Lisboa, 2013