Comunicación teatral: la construcción de sentido en la obra de teatro “Gol de oro (todo o nada)”

En un mundo en donde la comunicación está atravesada por artificios que el hombre inventó, cada vez más ostentosos y que se asientan sobre la lejanía de los cuerpos y la intermediación de dispositivos tecnológicos, el teatro subsiste. Con una forma de comunicación tan apartada al mecanismo de funcionamiento que nos proponen los medios masivos, el teatro continúa. En un país en donde los discursos políticos creen tener gran fuerza en la sociedad, el teatro perdura. En una ciudad que habla en los grafitis de los barrios, el teatro permanece. En una facultad en donde se producen tantos escritos de comunicación, el teatro vive. En el presente trabajo seleccionamos una obra teatral particular, “Gol de oro (todo o nada)” de Miguel Franchi, dirigida por Matías Martínez e interpretada por actores rosarinos, con el objetivo de investigar el proceso de comunicación que surge desde la escritura de un texto teatral, se reconstruye con la interpretación del director y los actores, y sigue en transformación hasta la creación del espectáculo teatralFil: Druetta, Marianela. Universidad Nacional de Rosario. Facultad de Ciencia Política y Relaciones Internacionales. Escuela de Comunicación Social; Argentina

D'atri spaces of type k and related classes of geometries concerning jacobi operators

In this article we continue the study of the geometry of $k$-D'Atri spaces, $$ $\leq n-1$ ($n$ denotes the dimension of the manifold)$,$ began by the second author. It is known that $k$-D'Atri spaces, $k\geq 1,$ are related to properties of Jacobi operators $R_{v}$ along geodesics, since she has shown that ${\operatorname{tr}}R_{v}$, ${\operatorname{tr}}R_{v}^{2}$ are invariant under the geodesic flow for any unit tangent vector $v$. Here, assuming that the Riemannian manifold is a D'Atri space, we prove in our main result that ${\operatorname{tr}}R_{v}^{3}$ is also invariant under the geodesic flow if $k\geq 3$. In addition, other properties of Jacobi operators related to the Ledger conditions are obtained and they are used to give applications to Iwasawa type spaces. In the class of D'Atri spaces of Iwasawa type, we show two different characterizations of the symmetric spaces of noncompact type: they are exactly the $\frak{C}$-spaces and on the other hand they are $k$ -D'Atri spaces for some $k\geq 3.$ In the last case, they are $k$-D'Atri for all $k=1,...,n-1$ as well. In particular, Damek-Ricci spaces that are $k$-D'Atri for some $k\geq 3$ are symmetric. Finally, we characterize $k$-D'Atri spaces for all $k=1,...,n-1$ as the $\frak{SC}$-spaces (geodesic symmetries preserve the principal curvatures of small geodesic spheres). Moreover, applying this result in the case of 4% -dimensional homogeneous spaces we prove that the properties of being a D'Atri (1-D'Atri) space, or a 3-D'Atri space, are equivalent to the property of being a $k$-D'Atri space for all $k=1,2,3$.Comment: 19 pages. This paper substitute the previous one where one Theorem has been deleted and one section has been adde

L'hyperbole performée: remarques à partir d'un corpus d'entretiens politiques

Dieser Artikel analysiert die verbalen, prosodischen und gestischen Aspekte der Hyperbel in mediatisierten politischen Diskussionen, die aufgrund ihres stark kodifizierten Rahmens als Untersuchungsgegenstand ausgewählt wurden. Die Betrachtung der verschiedenen hyperbolischen Performanzniveaus und deren Verhältnisse untereinander erlaubt es, die markanten Unterschiede zwischen der übertreibenden und der nicht-übertreibenden Rede zu erkennen. Im Übrigen werden wir die auf der Performanzebene bemerkbaren Unterschiede zwischen dem in der politischen Diskussion beliebten Euphemismus und der Hyperbel deutlich wahrnehmen. Dabei werden wir über die pragmatisch-argumentative Verwendung der hyperbolischen Rede in der Politik nachdenken, ebenso wie über gattungsbedingte Einschränkungen, denen die Einsetzung der Übertreibung unterworfen ist

Numerical Modeling of Nanotechnology-Boosted Chemical Enhanced Oil Recovery Methods

Since it was theorized more than 50 years ago, nanotechnology has become the perfect boost for existing old technologies. The unique properties exhibited by materials at these scales have a potential to improve the performance of mature oil fields along with enhanced oil recovery (EOR) processes. Regarding polymer flooding, the influence of the (macro) molecules’ architecture on the fluid properties has been lately stressed. This chapter presents the numerical simulation of the combination of both agents in a single, combined recovery process. The presence of the nanoparticles affects the rheological behavior and the rock’s wettability, increasing the organic phase mobility. Undesirable effects such as (nano) particle aggregation and sedimentation are also considered. The polymer’s architecture has a major influence on the recovery process, improving the rheological and viscoelastic properties. On the other hand, although nanoparticles improve the viscosity as well, its main mechanism is their adsorption onto the rock and wettability modification. This chapter shows the importance of a good polymer characterization for EOR, the potential of nanoparticles acting as a boost of traditional EOR processes, and the vital role CFD techniques play to assess the potential of these agents and the optimization of the recovery strategies

Influence of the polymer properties and numerical schemes on tertiary oil recovery processes

Chemical Enhanced Oil Recovery (EOR) processes comprise a number of flooding techniques aimed at increasing the operational life of mature oilfields. Among these, polymer flooding is one of the most developed; its functionality is to increment the aqueous viscosity, avoiding the formation of viscous fingering. Reservoir simulators consider this influence as well as other physical properties (e.g., adsorption, permeability reduction). However, the polymer degradation is usually not considered even though it plays a critical role in the viscosity. In this paper this mechanism is analyzed and coupled with the previously mentioned physical phenomena in order to present a complete study of their influence in the EOR process. Moreover, since a fully second-order accuracy scheme is used along with a Total Variation Diminishing (TVD) flux-limiting function, the influence of the latter on the recovery factor is also discussed. Results showed that the negative effect of the polymer adsorption was the most relevant physical phenomenon in terms of the oil recovery. Furthermore, the analysis of the discretization of the differential equations showed that traditional, linear first-order schemes created numerical diffusion affecting negatively the macroscopic sweeping efficiency, which disappeared when TVD techniques were used. Reservoir simulators allow determining the desired designing properties for future polymers in relationship with the characteristics of the oilfield to be exploited

Influence of physical and rheological properties of sweeping fluids on the residual oil saturation at the micro- and macroscale

Oil recovery processes depend on many factors that can be altered in order to maximize the sweeping efficiency in porous media, and one of these is the rheology behavior of the displacing agent. Furthermore, scales in the recovery process should also be considered: from the macro- to microscale systems, in which capillary forces become predominant. It is also well-known the non-Newtonian behavior of polymer solutions used in Enhanced Oil Recovery (EOR) processes. This has been considered before, explaining how the polymer’s viscosifying properties enhance the displacing process. Recently, another property exhibit by polymer solutions started being considered: the viscoelasticity. The interaction between the (macro)molecules in the displacing phase generates a complex stress field which cannot be simply addressed by an increment in the shear viscosity. We present a 2D, multiphase simulation at macro- and microscale of a recovery process with different fluid models, showing that viscoelastic fluids increase the recovery performance due to the extra stresses generated by the polymer molecules, up to a 15.4% when compared to traditional waterflooding techniques. The viscosity of the displacing phase affects indeed the recovery efficiency, and moreover, the results also evidenced that not only the bulk viscoelasticity, but also the interfacial forces play a vital role in the microscopic sweeping efficiency in polymer EOR flooding processes. This can be used when determining the properties of future EOR agents to be synthesized